Common use of Your Release of Claims Clause in Contracts

Your Release of Claims. You hereby agree and acknowledge that, by signing this Agreement and accepting the Severance Pay, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 For purposes of this Agreement, the Company includes Sera Prognostics, Inc. and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns.

Your Release of Claims. You hereby agree and acknowledge that, that by signing this Agreement and accepting the Severance PayAgreement, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company1/ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Age Discrimination in Employment Act, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Americans With Disabilities Act and any similar Federal and state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of employment. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. ** Any other Claim arising under state or federal law. 1/ For purposes of this Agreement, the Company includes Sera Prognostics, Inc. the Company and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns.. Notwithstanding the foregoing, nothing contained in this Release constitutes a waiver of any Claims you may have against the Company arising from or related to the Indemnification Agreement and By-laws provisions referenced in Section 8 of the Employment Agreement, dated January 1, 2014, entered into between you and the Company. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Agreement. It is the Company’s desire and intent to make certain that you fully understand the provisions and effects of this Agreement. To that end, you have been encouraged and given the opportunity to consult with legal counsel for the purpose of reviewing the terms of this Agreement. Also, because you are over the age of 40 and consistent with the provisions of the Age Discrimination in Employment Act (“ADEA”), which prohibits discrimination on the basis of age, the Company is providing you with twenty-one (21) days in which to consider and accept the terms of this Agreement by signing below and returning it to me at: [name], [address]. You may rescind your assent to this Agreement if, within seven (7) days after you sign this Agreement, you deliver by hand or send by mail (certified, return receipt and postmarked within such 7 day period) a notice of rescission to me at the Company. The eighth day following your signing of this Agreement is the Effective Date. Also, nothing in this Agreement: (i) prohibits or restricts you from filing a charge or complaint against the Company with any federal, state or local government authority, including a charge of unlawful discrimination with the Equal Employment Opportunity Commission or a state or local government authority responsible for enforcing laws prohibiting discriminatory employment practices; (ii) prohibits or restricts you from communicating with, providing relevant information to or otherwise cooperating with any government authority, including the EEOC or a state or local government authority responsible for enforcing laws prohibiting discriminatory employment practices, including without limitation, responding to any inquiry from such government authority, including an inquiry about the existence of this Agreement or its underlying facts; or (iii) requires you to notify the Company of your communications with or inquiries from any government authority. To the maximum extent permitted by law, however, you are not entitled to recover any legal or equitable remedies, including reinstatement or monetary damages, in the case of any administrative claim that he files or in which he participates, except as set forth herein and except that he retains the right to receive an award for actionable information he provides to a government authority. By: Sxxxx Xxxxxxxx Date signed:

Your Release of Claims. You hereby agree and acknowledge that, that by signing this Agreement and accepting the Severance PayAgreement, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company1/ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ attorneys fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Age Discrimination in Employment Act, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Americans With Disabilities Act and any similar Federal and state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of employment. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. ** Any other Claim arising under state or federal law. 1/ For purposes of this Agreement, the Company includes Sera Prognostics, Inc. the Company and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns. Notwithstanding the foregoing, nothing contained in this Release constitutes a waiver of any Claims you may have against the Company arising from or related to the Indemnification Agreement and By-laws provisions referenced in Section 8 of the Employment Agreement, dated January 1, 2014, entered into between you and the Company. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Agreement. It is the Company’s desire and intent to make certain that you fully understand the provisions and effects of this Agreement. To that end, you have been encouraged and given the opportunity to consult with legal counsel for the purpose of reviewing the terms of this Agreement. Also, because you are over the age of 40 and consistent with the provisions of the Age Discrimination in Employment Act (“ADEA”), which prohibits discrimination on the basis of age, the Company is providing you with twenty-one (21) days in which to consider and accept the terms of this Agreement by signing below and returning it to me at: [name], [address]. You may rescind your assent to this Agreement if, within seven (7) days after you sign this Agreement, you deliver by hand or send by mail (certified, return receipt and postmarked within such 7 day period) a notice of rescission to me at the Company. The eighth day following your signing of this Agreement is the Effective Date. Also, nothing in this Agreement: (i) prohibits or restricts you from filing a charge or complaint against the Company with any federal, state or local government authority, including a charge of unlawful discrimination with the Equal Employment Opportunity Commission or a state or local government authority responsible for enforcing laws prohibiting discriminatory employment practices; (ii) prohibits or restricts you from communicating with, providing relevant information to or otherwise cooperating with any government authority, including the EEOC or a state or local government authority responsible for enforcing laws prohibiting discriminatory employment practices, including without limitation, responding to any inquiry from such government authority, including an inquiry about the existence of this Agreement or its underlying facts; or (iii) requires you to notify the Company of your communications with or inquiries from any government authority. To the maximum extent permitted by law, however, you are not entitled to recover any legal or equitable remedies, including reinstatement or monetary damages, in the case of any administrative claim that he files or in which he participates, except as set forth herein and except that he retains the right to receive an award for actionable information he provides to a government authority. . By: Pxxx XxXxxxxx Date signed: Exhibit B Compromise Agreement THIS COMPROMISE AGREEMENT (the “Agreement”) is made as of [•] by and between Cyclacel Pharmaceuticals, Inc. (the “Employer”) and Pxxx XxXxxxxx (the “Executive”).

Your Release of Claims. You hereby agree and acknowledge that, that by signing this Agreement and accepting the Severance Pay, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action by you, including but not limited to a class or collective action, whether you seek to participate as a party plaintiff or as a class member (each a “Claim” and jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 For purposes Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any local, state or federal discrimination, fair employment practices or other employment-related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the federal Age Discrimination in Employment Act, the Civil Rights Acts of 1866 and 1871, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Americans With Disabilities Act, the Federal Worker Adjustment and Retraining Notification Act; and any similar California, or other state, federal, or local statute. ** Claims under any other local, state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to any other terms and conditions of employment. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. ** Any other Claim arising under local, state or federal law. Notwithstanding the foregoing, this section does not release the Company from any obligation expressly set forth in this Agreement. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Agreement, the Company includes Sera Prognostics, Inc. and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns.

Your Release of Claims. You hereby agree and acknowledge that, that by signing this Agreement and accepting the Severance Payrelease agreement (this “Release), and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company1/ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement Release (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ attorneys fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. This Release does not include a waiver and release of any of your currently vested rights to pension benefits (including benefits pursuant to Company’s 401(k) pension plan), workers’ compensation benefits, or unemployment compensation benefits. This Agreement does not waive or release any rights that may arise after the date on which you sign this Release, or claims concerning an alleged breach of the outstanding obligations of the Company under your Employment Agreement. This Release also does not include claims that cannot be waived by law. Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Age Discrimination in Employment Act, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Equal Pay Act, the Americans With Disabilities Act and any similar Federal and state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of employment. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of 1 For purposes of this AgreementRelease, the Company includes Sera Prognostics, Inc. the Company and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns. public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. ** Any other Claim arising under state or federal law. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Agreement. It is the Company’s desire and intent to make certain that you fully understand the provisions and effects of this Release. To that end, you have been encouraged and given the opportunity to consult with legal counsel for the purpose of reviewing the terms of this Agreement. Also, because you are over the age of 40, the Age Discrimination in Employment Act (“ADEA”), which prohibits discrimination on the basis of age, allows you at least twenty-one (21) days to consider the terms of this Release. ADEA also allows you to rescind your assent to this Release if, within seven (7) days after you sign this Agreement, you deliver by hand or send by mail (certified, return receipt and postmarked within such 7 day period) a notice of rescission to the Company. If no such rescission notice is provided by you to the Company, then the eighth day following the Execution Date is the “Effective Date” of this Release. Furthermore, nothing in this Release shall be deemed to prohibit you from challenging the validity of this Release under the federal discrimination laws of the United States (the “Federal Discrimination Laws”) or from filing a charge or complaint of employment-related discrimination with the Equal Employment Opportunity Commission (“EEOC”), or from participating in any investigation or proceeding conducted by the EEOC. Further, nothing in this Release shall be deemed to limit the Company’s right to seek immediate dismissal of such charge or complaint on the basis that your signing of this Agreement constitutes a full release of any individual rights under the Federal Discrimination Laws, or to seek restitution to the extent permitted by law of the economic benefits provided to you under this Agreement in the event that you successfully challenge the validity of this Release and prevail in any claim under the Federal Discrimination Laws.

Your Release of Claims. You hereby agree and acknowledge that, that by signing this Agreement and accepting the Severance Separation Pay, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company1/ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ attorneys fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Title VII of the Civil Rights Act of 1964, the Age Discrimination in Employment Act, the Civil Rights Act of 1991, the Americans With Disabilities Act and any similar state statutes. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of employment. 1/ For purposes of this Agreement, the Company includes Sera Prognostics, Inc. and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries Company and all other related entities, and its and their present and former and current directors, officers, partners, employees, trustees, agents, successors and assigns. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. ** Any other Claim arising under applicable law. Notwithstanding the foregoing, this section does not release the Company from any obligations expressly set forth in this Agreement nor is the Company released from any obligation to indemnify you as required by law. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Agreement. Also, because you are over the age of 40, and consistent with the provisions of the Age Discrimination in Employment Act (“ADEA”), which prohibits discrimination on the basis of age, the Company is providing you with twenty-one (21) days in which to consider and accept the terms of this Agreement by signing below and returning it to me. In addition, you may rescind your assent to this Agreement if, within seven (7) days after you sign this Agreement, you deliver by hand or send by mail (certified, return receipt and postmarked within such 7 day period) a notice of rescission to me. The eighth day following your signing of this Agreement is the Effective Date. Also, consistent with the provisions of the discrimination laws, nothing in this release shall be deemed to prohibit you from challenging the validity of this release under the Federal age or other discrimination laws or state equivalent (the “Discrimination Laws”) or from filing a charge or complaint of employment-related discrimination with the Equal Employment Opportunity Commission (“EEOC”) or state equivalent, or from participating in any investigation or proceeding conducted by the EEOC or state equivalent. Further, nothing in this release or Agreement shall be deemed to limit the Firm’s right to seek immediate dismissal of such charge or complaint on the basis that your signing of this Agreement constitutes a full release of any individual rights under the Discrimination Laws, or to seek restitution to the extent permitted by law of the economic benefits provided to you under this Agreement in the event that you successfully challenge the validity of this release and prevail in any claim under the Discrimination Laws. It is the Company’s desire and intent to make certain that you fully understand the provisions and effects of this Agreement. To that end, you have been encouraged and given the opportunity to consult with legal counsel for the purpose of reviewing the terms of this Agreement.

Your Release of Claims. You hereby agree and acknowledge that, by By signing this Separation Agreement and accepting the Severance Paycompensation set forth in Section 3, you, on behalf of yourself, your heirs, executors, administrators, successors and assigns, waive, release and forever discharge the Company and all current and former subsidiaries, divisions, related or affiliated companies, and for other good all of their officers, directors, employees, agents, successors, predecessors and valuable considerationassigns, you are waiving your right including but not limited to assert any all management and supervisory employees (severally and collectively “Releasees”), jointly and individually, from all forms claims, complaints, demands, causes of legal claims against the Company1 action, obligations, liabilities and damages of any kind whatsoeverevery nature and description, whether known or unknown, foreseen or unforeseen, in law or equity, at common law or under any statute, rule, regulation, order or law, whether federal, state or local, on any grounds whatsoever arising from the beginning before your signing this Separation Agreement, including but not limited to any claim relating to or arising out of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against your employment by the Company or otherwise contacted the Company’s involuntary termination of your employment, any U.S. claim under the WARN Act, any claim under the Age Discrimination in Employment Act of 1967, as amended, any claim of discrimination on any basis under any federal, state or local governmental law, any claim of breach of any express or implied contract, any claim for promissory estoppel or detrimental reliance, and any claim for wrongful or constructive discharge. If any administrative agency or commission court assumes jurisdiction of any charge, complaint, proceeding or action covered by Section 4 of this Separation Agreement against any of the Releasees, you agree not to accept, recover or receive any monetary damages or other relief from or in connection with such charge, complaint, proceeding or action. You agree that has applicable if a court of competent jurisdiction determines that you are to regulate be awarded damages under WARN, those damages will be offset by the total compensation paid to you under Section 3(a) and 3(b) of this Separation Agreement. The Company (each a “Government Agency”) regarding the Company, except advises you to consult with your own attorney before agreeing to the extent release of claims set forth in this section. As set forth below in Section 12, you have twenty-one (i21) have already informed days from the date of your receipt of this letter to review this Separation Agreement and the release it contains. Nothing in this section impairs your right to vested Company benefits to which you are entitled as of the date you sign this Separation Agreement. Nothing in writing prior this section impairs any right you hold that cannot be waived or released as a matter of law. By way of example, nothing in this section impairs your right to the Execution Datefile a charge or complaint with any appropriate federal, state, or (ii) are permitted by law local agency, such as the United States Equal Employment Opportunity Commission, or to opt against participate in or cooperate with any such disclosure; and furthercharge or complaint procedure. After signing this Separation Agreement, you are not aware of any unlawful conduct in relation retain the right to challenge the business validity of the Company, except to the extent Separation Agreement. If you have already informed the Company in writing prior to the Execution Date. Except any questions about other rights you may hold that cannot be waived or released as set forth below, your waiver and release herein is intended to bar any form a matter of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 For purposes of this Agreementlaw, the Company includes Sera Prognostics, Inc. and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control advises you to consult with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assignsyour own attorney on that subject.

Your Release of Claims. You hereby agree and acknowledge that, that by signing this Agreement and accepting the Severance Separation Pay, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Effective Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, charge, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ attorney’s fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Effective Date. 1 For purposes Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Effective Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Federal Age Discrimination in Employment Act, the Civil Rights Acts of 1866 and 1871, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Equal Pay Act, the Americans With Disabilities Act, the California Fair Employment and Housing Act, the California Labor Code and any similar California or other state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Effective Date) relating to wages, hours, exempt or non-exempt classification or any other terms and conditions of employment. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. ** Any other Claim arising under state or federal law. In addition to the forgoing, you hereby agree that you waive all rights under section 1542 of the Civil Code of the State of California. Section 1542 provides that: A general release does not extend to claims which the creditor does not know or suspect to exist in his favor at the time of executing the release, which if known by him must have materially affected his settlement with the debtor. Pursuant to section 1542, you acknowledge that you may hereafter discover facts different from or in addition to facts which you now know or believe to be true with regard to the released claims, and further agree that this Agreement shall remain effective in all respects not withstanding such discovery of new or different facts, including any such facts which may give rise to currently unknown claims, including but not limited to any claims or rights which you may have under section 1542 of the California Civil Code. Notwithstanding the foregoing, this section does not release the Company from any obligation expressly set forth in this Agreement. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Agreement. It is the Company’s desire and intent to make certain that you fully understand the provisions and effects of this Agreement. To that end, you have been encouraged and given the opportunity to consult with legal counsel for the purpose of reviewing the terms of this Agreement. Also, if you are over the age of forty (40), and consistent with the provisions of the Age Discrimination in Employment Act (“ADEA”), which prohibits discrimination on the basis of age, the Company is providing you with twenty-one (21) days after the Separation Date in which to consider and accept the terms of this Agreement by signing below and returning it to Xxxx Xxxxxx at the Company. If you are not over the age of forty (40) you have seven days after the Separation Date in which to consider and accept the terms of this agreement by signing it and returning it to Xxxx Xxxxxx at the Company. In addition, regardless of your age, you have seven (7) days after the date that you deliver this Agreement to the Company to rescind your execution of this Agreement. You must sign and deliver by hand or send by mail (certified, return receipt and postmarked within such applicable period) the executed Agreement to Xxxx Xxxxxx at the Company. Provided that you execute and deliver this Agreement, the eighth day following the date that you deliver this Agreement to the Company includes Sera Prognostics, Inc. and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with is the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns“Effective Date.”

Your Release of Claims. You hereby agree and acknowledge that, that by signing this Agreement and accepting the Severance Payrelease agreement (this “Release), and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement Release (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ attorneys fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 For purposes Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Age Discrimination in Employment Act, Title VII of this Agreementthe Civil Rights Act of 1964, the Company includes Sera PrognosticsCivil Rights Act of 1991, Inc. the Equal Pay Act, the Americans With Disabilities Act and any similar Federal and state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of its divisionsemployment. ** Claims under any state or federal common law theory including, affiliates (which means all persons without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and entities directly fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or indirectly controllingnegligent infliction of emotional distress, controlled by invasion of privacy, misrepresentation, deceit, fraud or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assignsnegligence.

Your Release of Claims. You hereby agree and acknowledge that, that by signing this Agreement and accepting the Severance Payrelease agreement (this “Release”), and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement Release (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ attorneys fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 For purposes Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Age Discrimination in Employment Act, Title VII of this Agreementthe Civil Rights Act of 1964, the Company includes Sera PrognosticsCivil Rights Act of 1991, Inc. the Equal Pay Act, the Americans With Disabilities Act and any similar Federal and state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of its divisionsemployment. ** Claims under any state or federal common law theory including, affiliates (which means all persons without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and entities directly fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or indirectly controllingnegligent infliction of emotional distress, controlled by invasion of privacy, misrepresentation, deceit, fraud or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assignsnegligence.

Your Release of Claims. You hereby agree and acknowledge that, that by signing this Agreement and accepting the Severance PayAgreement, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company1/ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Age Discrimination in Employment Act, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Americans With Disabilities Act and any similar Federal and state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of employment. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. ** Any other Claim arising under state or federal law. 1/ For purposes of this Agreement, the Company includes Sera Prognostics, Inc. the Company and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns.. Notwithstanding the foregoing, nothing contained in this Release constitutes a waiver of any Claims you may have against the Company arising from or related to the Indemnification Agreement and By-laws provisions referenced in Section 8 of the Employment Agreement, dated January 1, 2014, entered into between you and the Company. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Agreement. It is the Company’s desire and intent to make certain that you fully understand the provisions and effects of this Agreement. To that end, you have been encouraged and given the opportunity to consult with legal counsel for the purpose of reviewing the terms of this Agreement. Also, because you are over the age of 40 and consistent with the provisions of the Age Discrimination in Employment Act (“ADEA”), which prohibits discrimination on the basis of age, the Company is providing you with twenty-one (21) days in which to consider and accept the terms of this Agreement by signing below and returning it to me at: [name], [address]. You may rescind your assent to this Agreement if, within seven (7) days after you sign this Agreement, you deliver by hand or send by mail (certified, return receipt and postmarked within such 7 day period) a notice of rescission to me at the Company. The eighth day following your signing of this Agreement is the Effective Date. Also, consistent with the provisions of Federal and state discrimination laws, nothing in this release shall be deemed to prohibit you from challenging the validity of this release under such discrimination laws (the “ Discrimination Laws”) or from filing a charge or complaint of age or other employment related discrimination with the Equal Employment Opportunity Commission (“EEOC”) or state equivalent, or from participating in any investigation or proceeding conducted by the EEOC or state equivalent. Further, nothing in this release or Agreement shall be deemed to limit the Company’s right to seek immediate dismissal of such charge or complaint on the basis that your signing of this Agreement constitutes a full release of any individual rights under the Discrimination Laws, or to seek restitution to the extent permitted by law of the economic benefits provided to you under this Agreement in the event that you successfully challenge the validity of this release and prevail in any claim under the Discrimination Laws. By: Sxxxx Xxxxxxxx Date signed:

Your Release of Claims. You hereby agree and acknowledge that, that by signing this Transition Agreement and accepting the Severance Paybenefits hereunder, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company1/ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Transition Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action by you, including but not limited to a class or collective action, whether you seek to participate as a party plaintiff or as a class member (each a “Claim” and jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 For purposes Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any local, state or federal discrimination, fair employment practices or other employment-related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the federal Age Discrimination in Employment Act, the Civil Rights Acts of 1866 and 1871, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Americans With Disabilities Act, the Federal Worker Adjustment and Retraining Notification Act; and any similar California, or other state, federal, or local statutes. ** Claims under any other local, state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to any other terms and conditions of employment. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. ** Any other Claim arising under local, state or federal law. Notwithstanding the foregoing, this section does not release the Company from any obligation expressly set forth in this Transition Agreement or any claim that cannot be released as a matter of law and claims for indemnity under any indemnification agreements or rights to indemnity under any Company bylaws or corporate charter. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Transition Agreement, the Company includes Sera Prognostics, Inc. and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns.

Your Release of Claims. You By signing this Agreement, you hereby agree and acknowledge that, by signing this Agreement and accepting the Severance Pay, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company1/ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Age Discrimination in Employment Act, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Equal Pay Act, the Americans With Disabilities Act and any similar Federal and state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of employment. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. ** Any other Claim arising under state or federal law. 1/ For purposes of this Agreement, the Company includes Sera Prognostics, Inc. the Company and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns.. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Agreement. You further acknowledge that this release does not waive any claims you cannot by law waive and does not release any claims that arise after its execution. It is the Company’s desire and intent to make certain that you fully understand the provisions and effects of this Agreement. To that end, you have been advised and given the opportunity to consult with legal counsel for the purpose of reviewing the terms of this Agreement. Also, because you are over the age of 40, the Age Discrimination in Employment Act (“ADEA”), which prohibits discrimination on the basis of age, allows you at least twenty-one (21) days to consider the terms of this Agreement. ADEA also allows you to rescind your assent to this Agreement if, within seven (7) days after you sign this Agreement, you deliver by hand or send by mail (certified, return receipt and postmarked within such 7 day period) a notice of rescission to the Company. The eighth day following your signing of this Agreement is the Effective Date. Also, consistent with the provisions of Federal law, nothing in this release shall be deemed to prohibit you from challenging the validity of this release under the discrimination laws (the “Federal Discrimination Laws”) or from filing a charge or complaint of employment-related discrimination with the Equal Employment Opportunity Commission (“EEOC”) or any state fair employment practices agency, or from participating in any investigation or proceeding conducted by the EEOC or any state fair employment practices agency. Further, nothing in this release or Agreement shall be deemed to limit the Company’s right to seek immediate dismissal of such charge or complaint on the basis that your signing of this Agreement constitutes a full release of any individual rights under the Federal Discrimination Laws, or to seek restitution to the extent permitted by law of the economic benefits provided to you under this Agreement in the event that you successfully challenge the validity of this release and prevail in any claim under the Federal Discrimination Laws. By: Executive: Xxxxxxx X. XxXxxx Date signed: _________________

Your Release of Claims. You hereby agree and acknowledge that, that by signing this Agreement and accepting the Severance PayAgreement, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 / of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ attorneys fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 For purposes Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Age Discrimination in Employment Act, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Equal Pay Act, the Americans With Disabilities Act and any similar Federal and state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of employment. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. ** Any other Claim arising under state or federal law. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Agreement. It is the Company’s desire and intent to make certain that you fully understand the provisions and effects of this Agreement. To that end, you have been encouraged and given the opportunity to consult with legal counsel for the purpose of reviewing the terms of this Agreement. Also, because you are over the age of 40, the Company includes Sera PrognosticsAge Discrimination in Employment Act (“ADEA”), Inc. which prohibits discrimination on the basis of age, allows you at least twenty-one (21) days to consider the terms of this Agreement. ADEA also allows you to rescind your assent to this Agreement if, within seven (7) days after you sign this Agreement, you deliver by hand or send by mail (certified, return receipt and any postmarked within such 7 day period) a notice of its divisionsrescission to the Company. The eighth day following your signing of this Agreement is the Effective Date. Also, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control consistent with the Companyprovisions of the Federal Discrimination Laws, nothing in this release shall be deemed to prohibit you from challenging the validity of this release under the discrimination laws (the “Federal Discrimination Laws”) or from filing a charge or complaint of employment-related discrimination with the Equal Employment Opportunity Commission (“EEOC”), parentsor from participating in any investigation or proceeding conducted by the EEOC. Further, subsidiaries nothing in this release or Agreement shall be deemed to limit the Company’s right to seek immediate dismissal of such charge or complaint on the basis that your signing of this Agreement constitutes a full release of any individual rights under the Federal Discrimination Laws, or to seek restitution to the extent permitted by law of the economic benefits provided to you under this Agreement in the event that you successfully challenge the validity of this release and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns.prevail in any claim under the Federal Discrimination Laws. By:__________________________ Employee Date signed: _____________ 4203193v.1

Your Release of Claims. You hereby agree and acknowledge that, by signing this Agreement and accepting the Severance Pay, and for other good and valuable consideration, by signing this Agreement, you are waiving your right to assert any and all forms of legal claims against the Company1 Company1/ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 For purposes Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Age Discrimination in Employment Act, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Equal Pay Act, the Americans With Disabilities Act and any similar Federal and state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of employment. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. ** Any other Claim arising under state or federal law. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Agreement. You further acknowledge that this release does not waive any claims you cannot by law waive and does not release any claims that arise after its execution. It is the Company’s desire and intent to make certain that you fully understand the provisions and effects of this Agreement. To that end, you are advised to consult with legal counsel for the purpose of reviewing the terms of this Agreement. Also, because you are over the age of 40, the Company includes Sera PrognosticsAge Discrimination in Employment Act (“ADEA”), Inc. which prohibits discrimination on the basis of age, allows you at least twenty-one (21) days to consider the terms of this Agreement. ADEA also allows you to rescind your assent to this Agreement if, within seven (7) days after you sign this Agreement, you deliver by hand or send by mail (certified, return receipt and any postmarked within such 7 day period) a notice of its divisionsrescission to the Company. The eighth day following your signing of this Agreement is the Effective Date. Also, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control consistent with the provisions of the federal law, nothing in this release shall be deemed to prohibit you from challenging the validity of this release under the discrimination laws (the “Federal Discrimination Laws”) or from filing a charge or complaint of employment-related discrimination with the Equal Employment Opportunity Commission (“EEOC”) or any state fair employment practices agency, or from participating in any investigation or proceeding conducted by the EEOC or any state fair employment practices agency. Further, nothing in this release or Agreement shall be deemed to limit the Company)’s right to seek immediate dismissal of such charge or complaint on the basis that your signing of this Agreement constitutes a full release of any individual rights under the Federal Discrimination Laws, parents, subsidiaries or to seek restitution to the extent permitted by law of the economic benefits provided to you under this Agreement in the event that you successfully challenge the validity of this release and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns.prevail in any claim under the Federal Discrimination Laws. By: __________________________ Employee Date signed: _____________

Your Release of Claims. You hereby agree and acknowledge that, that by signing this Agreement and accepting the Severance PayAgreement, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company1/ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ attorneys fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Age Discrimination in Employment Act, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Americans With Disabilities Act and any similar Federal and state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of employment. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. ** Any other Claim arising under state or federal law. 1/ For purposes of this Agreement, the Company includes Sera Prognostics, Inc. the Company and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns. Notwithstanding the foregoing, nothing contained in this Release constitutes a waiver of any Claims you may have against the Company arising from or related to the Indemnification Agreement and By-laws provisions referenced in Section 8 of the Employment Agreement, dated January 1, 2014, entered into between you and the Company. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Agreement. It is the Company’s desire and intent to make certain that you fully understand the provisions and effects of this Agreement. To that end, you have been encouraged and given the opportunity to consult with legal counsel for the purpose of reviewing the terms of this Agreement. Also, because you are over the age of 40 and consistent with the provisions of the Age Discrimination in Employment Act (“ADEA”), which prohibits discrimination on the basis of age, the Company is providing you with twenty-one (21) days in which to consider and accept the terms of this Agreement by signing below and returning it to me at: [name], [address]. You may rescind your assent to this Agreement if, within seven (7) days after you sign this Agreement, you deliver by hand or send by mail (certified, return receipt and postmarked within such 7 day period) a notice of rescission to me at the Company. The eighth day following your signing of this Agreement is the Effective Date. Also, nothing in this Agreement: (i) prohibits or restricts you from filing a charge or complaint against the Company with any federal, state or local government authority, including a charge of unlawful discrimination with the Equal Employment Opportunity Commission or a state or local government authority responsible for enforcing laws prohibiting discriminatory employment practices; (ii) prohibits or restricts you from communicating with, providing relevant information to or otherwise cooperating with any government authority, including the EEOC or a state or local government authority responsible for enforcing laws prohibiting discriminatory employment practices, including without limitation, responding to any inquiry from such government authority, including an inquiry about the existence of this Agreement or its underlying facts; or (iii) requires you to notify the Company of your communications with or inquiries from any government authority. To the maximum extent permitted by law, however, you are not entitled to recover any legal or equitable remedies, including reinstatement or monetary damages, in the case of any administrative claim that he files or in which he participates, except as set forth herein and except that he retains the right to receive an award for actionable information he provides to a government authority. . By: Pxxx XxXxxxxx Date signed: Exhibit B Compromise Agreement COMPROMISE AGREEMENT THIS COMPROMISE AGREEMENT (the “Agreement”) is made as of [•] by and between Cyclacel Pharmaceuticals, Inc. (the “Employer”) and Pxxx XxXxxxxx (the “Executive”).

Your Release of Claims. You By signing this Agreement, you hereby agree and acknowledge that, by signing this Agreement and accepting the Severance Pay, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company1/ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ attorneys fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Age Discrimination in Employment Act, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Equal Pay Act, the Americans With Disabilities Act and any similar Federal and state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of employment. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. ** Any other Claim arising under state or federal law. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Agreement. You further acknowledge that this release does not waive any claims you cannot by law waive and does not release any claims that arise after its execution. It is the Company’s desire and intent to make certain that you fully understand the provisions and effects of this Agreement. To that end, you have been advised and given the opportunity to consult with legal counsel for the purpose of reviewing the terms of this Agreement. Also, because you are over the age of 40, the Age Discrimination in Employment Act (“ADEA”), which prohibits discrimination on the basis of age, allows you at least twenty-one (21) days to consider the terms of this Agreement. ADEA also allows you to rescind your assent to this Agreement if, within seven (7) days after you sign this Agreement, you deliver by hand or send by mail (certified, return receipt and postmarked within such 7 day period) a notice of rescission to the Company. The eighth day following your signing of this Agreement is the Effective Date. Also, consistent with the provisions of Federal law, nothing in this release shall be deemed to prohibit you from challenging the validity of this release under the discrimination laws (the “Federal Discrimination Laws”) or from filing a charge or complaint of employment-related discrimination with the Equal Employment Opportunity Commission (“EEOC”) or any state fair employment practices agency, or from participating in any investigation or proceeding conducted by the EEOC or any state fair employment practices agency. Further, nothing in this release or Agreement shall be deemed to limit the Company’s right to seek immediate dismissal of such charge or complaint on the basis that your signing of this Agreement constitutes a full release of any individual rights under the Federal Discrimination Laws, or to seek restitution to the extent permitted by law of the economic benefits provided to you under this Agreement in the event that you successfully challenge the validity of this release and prevail in any claim under the Federal Discrimination Laws. /s/ Xxxxxx Xxxxx Executive Date executed: May 7, 2012 Footnotes 1/ For purposes of this Agreement, the Company includes Sera Prognostics, Inc. the Company and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns.

Your Release of Claims. You By signing this Agreement, you hereby agree and acknowledge that, by signing this Agreement and accepting the Severance Pay, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company1/ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 For purposes Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Age Discrimination in Employment Act, Title VII of this Agreementthe Civil Rights Act of 1964, the Company includes Sera PrognosticsCivil Rights Act of 1991, Inc. the Equal Pay Act, the Americans With Disabilities Act and any similar Federal and state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of its divisionsemployment. ** Claims under any state or federal common law theory including, affiliates (which means all persons without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and entities directly fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or indirectly controllingnegligent infliction of emotional distress, controlled by invasion of privacy, misrepresentation, deceit, fraud or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assignsnegligence.

Your Release of Claims. You By signing this Agreement, you hereby agree and acknowledge that, by signing this Agreement and accepting the Severance Pay, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company12/ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Age Discrimination in Employment Act, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Equal Pay Act, the Americans With Disabilities Act and any similar Federal and state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of employment. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. 11/ For purposes of this Agreement, the Company includes Sera Prognostics, Inc. the Company and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns.. ** Any other Claim arising under state or federal law. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Agreement. You further acknowledge that this release does not waive any claims you cannot by law waive and does not release any claims that arise after its execution. It is the Company’s desire and intent to make certain that you fully understand the provisions and effects of this Agreement. To that end, you have been advised and given the opportunity to consult with legal counsel for the purpose of reviewing the terms of this Agreement. Also, because you are over the age of 40, the Age Discrimination in Employment Act (“ADEA”), which prohibits discrimination on the basis of age, allows you at least twenty-one (21) days to consider the terms of this Agreement. ADEA also allows you to rescind your assent to this Agreement if, within seven (7) days after you sign this Agreement, you deliver by hand or send by mail (certified, return receipt and postmarked within such 7 day period) a notice of rescission to the Company. The eighth day following your signing of this Agreement is the Effective Date. Also, consistent with the provisions of Federal law, nothing in this release shall be deemed to prohibit you from challenging the validity of this release under the discrimination laws (the “Federal Discrimination Laws”) or from filing a charge or complaint of employment-related discrimination with the Equal Employment Opportunity Commission (“EEOC”) or any state fair employment practices agency, or from participating in any investigation or proceeding conducted by the EEOC or any state fair employment practices agency. Further, nothing in this release or Agreement shall be deemed to limit the Company’s right to seek immediate dismissal of such charge or complaint on the basis that your signing of this Agreement constitutes a full release of any individual rights under the Federal Discrimination Laws, or to seek restitution to the extent permitted by law of the economic benefits provided to you under this Agreement in the event that you successfully challenge the validity of this release and prevail in any claim under the Federal Discrimination Laws. By: /s/ Xxxxxx Xxxxx Executive: Xxxxxx Xxxxx, Ph.D. Date signed: January 6, 2016

Your Release of Claims. You hereby agree and acknowledge that, that by signing this Agreement and accepting the Severance PayAgreement, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company1/ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ attorneys fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Age Discrimination in Employment Act, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Americans With Disabilities Act and any similar Federal and state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of employment. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. 1/ For purposes of this Agreement, the Company includes Sera Prognostics, Inc. the Company and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns.. ** Any other Claim arising under state or federal law. Notwithstanding the foregoing, nothing contained in this Release constitutes a waiver of any Claims you may have against the Company arising from or related to the Indemnification Agreement and By-laws provisions referenced in Section 8 of the Employment Agreement, dated January 1, 2014, entered into between you and the Company. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Agreement. It is the Company’s desire and intent to make certain that you fully understand the provisions and effects of this Agreement. To that end, you have been encouraged and given the opportunity to consult with legal counsel for the purpose of reviewing the terms of this Agreement. Also, because you are over the age of 40 and consistent with the provisions of the Age Discrimination in Employment Act (“ADEA”), which prohibits discrimination on the basis of age, the Company is providing you with twenty-one (21) days in which to consider and accept the terms of this Agreement by signing below and returning it to me at: [name], [address]. You may rescind your assent to this Agreement if, within seven (7) days after you sign this Agreement, you deliver by hand or send by mail (certified, return receipt and postmarked within such 7 day period) a notice of rescission to me at the Company. The eighth day following your signing of this Agreement is the Effective Date. Also, consistent with the provisions of Federal and state discrimination laws, nothing in this release shall be deemed to prohibit you from challenging the validity of this release under such discrimination laws (the “ Discrimination Laws”) or from filing a charge or complaint of age or other employment related discrimination with the Equal Employment Opportunity Commission (“EEOC”) or state equivalent, or from participating in any investigation or proceeding conducted by the EEOC or state equivalent. Further, nothing in this release or Agreement shall be deemed to limit the Company’s right to seek immediate dismissal of such charge or complaint on the basis that your signing of this Agreement constitutes a full release of any individual rights under the Discrimination Laws, or to seek restitution to the extent permitted by law of the economic benefits provided to you under this Agreement in the event that you successfully challenge the validity of this release and prevail in any claim under the Discrimination Laws. By: Sxxxx Xxxxxxxx Date signed:

Your Release of Claims. You By signing this Agreement, you hereby agree and acknowledge that, by signing this Agreement and accepting the Severance Pay, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company1/ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ attorneys fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Age Discrimination in Employment Act, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Equal Pay Act, the Americans With Disabilities Act and any similar Federal and state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of employment. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. ** Any other Claim arising under state or federal law. 1/ For purposes of this Agreement, the Company includes Sera Prognostics, Inc. the Company and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns.. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Agreement. You further acknowledge that this release does not waive any claims you cannot by law waive and does not release any claims that arise after its execution. It is the Company’s desire and intent to make certain that you fully understand the provisions and effects of this Agreement. To that end, you have been advised and given the opportunity to consult with legal counsel for the purpose of reviewing the terms of this Agreement. Also, because you are over the age of 40, the Age Discrimination in Employment Act (“ADEA”), which prohibits discrimination on the basis of age, allows you at least 21 days to consider the terms of this Agreement. ADEA also allows you to rescind your assent to this Agreement if, within seven days after you sign this Agreement, you deliver by hand or send by mail (certified, return receipt and postmarked within such seven-day period) a notice of rescission to the Company. The eighth day following your signing of this Agreement is the Effective Date. Also, consistent with the provisions of Federal law, nothing in this release shall be deemed to prohibit you from challenging the validity of this release under the discrimination laws (the “Federal Discrimination Laws”) or from filing a charge or complaint of employment-related discrimination with the Equal Employment Opportunity Commission (“EEOC”) or any state fair employment practices agency, or from participating in any investigation or proceeding conducted by the EEOC or any state fair employment practices agency. Further, nothing in this release or Agreement shall be deemed to limit the Company’s right to seek immediate dismissal of such charge or complaint on the basis that your signing of this Agreement constitutes a full release of any individual rights under the Federal Discrimination Laws, or to seek restitution to the extent permitted by law of the economic benefits provided to you under this Agreement in the event that you successfully challenge the validity of this release and prevail in any claim under the Federal Discrimination Laws. By:__________________________ Employee Date signed: _____________ Endnotes

Your Release of Claims. You hereby agree and acknowledge that, that by signing this Agreement and accepting the Severance PayAgreement, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company1/ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ attorneys fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: * * Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or Employee order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Age Discrimination in Employment Act, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Americans With Disabilities Act and any similar Federal and state statute. ** Claims under any other state or federal employment related statute, regulation or Employee order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of employment. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. ** Any other Claim arising under state or federal law. _________________________ 1/ For purposes of this Agreement, the Company includes Sera Prognostics, Inc. the Company and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns.. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Agreement. It is the Company’s desire and intent to make certain that you fully understand the provisions and effects of this Agreement. To that end, you have been encouraged and given the opportunity to consult with legal counsel for the purpose of reviewing the terms of this Agreement. Also, because you are over the age of 40 and consistent with the provisions of the Age Discrimination in Employment Act (“ADEA”), which prohibits discrimination on the basis of age, the Company is providing you with twenty-one (21) days in which to consider and accept the terms of this Agreement by signing below and returning it to me at: [name], [address]. You may rescind your assent to this Agreement if, within seven (7) days after you sign this Agreement, you deliver by hand or send by mail (certified, return receipt and postmarked within such 7 day period) a notice of rescission to me at the Company. The eighth day following your signing of this Agreement is the Effective Date. Also, consistent with the provisions of federal and state discrimination laws, nothing in this release shall be deemed to prohibit you from challenging the validity of this release under such discrimination laws (the “Discrimination Laws”) or from filing a charge or complaint of age or other employment related discrimination with the Equal Employment Opportunity Commission (“EEOC”) or state equivalent, or from participating in any investigation or proceeding conducted by the EEOC or state equivalent. Further, nothing in this release or Agreement shall be deemed to limit the Company’s right to seek immediate dismissal of such charge or complaint on the basis that your signing of this Agreement constitutes a full release of any individual rights under the Discrimination Laws, or to seek restitution to the extent permitted by law of the economic benefits provided to you under this Agreement in the event that you successfully challenge the validity of this release and prevail in any claim under the Discrimination Laws. By: Employee Date:

Your Release of Claims. You By signing this Agreement, you hereby agree and acknowledge that, by signing this Agreement and accepting the Severance Pay, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company12/ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Age Discrimination in Employment Act, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Equal Pay Act, the Americans With Disabilities Act and any similar Federal and state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of employment. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. 11/ For purposes of this Agreement, the Company includes Sera Prognostics, Inc. the Company and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns.. ** Any other Claim arising under state or federal law. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Agreement. You further acknowledge that this release does not waive any claims you cannot by law waive and does not release any claims that arise after its execution. It is the Company’s desire and intent to make certain that you fully understand the provisions and effects of this Agreement. To that end, you have been advised and given the opportunity to consult with legal counsel for the purpose of reviewing the terms of this Agreement. Also, because you are over the age of 40, the Age Discrimination in Employment Act (“ADEA”), which prohibits discrimination on the basis of age, allows you at least twenty-one (21) days to consider the terms of this Agreement. ADEA also allows you to rescind your assent to this Agreement if, within seven (7) days after you sign this Agreement, you deliver by hand or send by mail (certified, return receipt and postmarked within such 7 day period) a notice of rescission to the Company. The eighth day following your signing of this Agreement is the Effective Date. Also, consistent with the provisions of Federal law, nothing in this release shall be deemed to prohibit you from challenging the validity of this release under the discrimination laws (the “Federal Discrimination Laws”) or from filing a charge or complaint of employment-related discrimination with the Equal Employment Opportunity Commission (“EEOC”) or any state fair employment practices agency, or from participating in any investigation or proceeding conducted by the EEOC or any state fair employment practices agency. Further, nothing in this release or Agreement shall be deemed to limit the Company’s right to seek immediate dismissal of such charge or complaint on the basis that your signing of this Agreement constitutes a full release of any individual rights under the Federal Discrimination Laws, or to seek restitution to the extent permitted by law of the economic benefits provided to you under this Agreement in the event that you successfully challenge the validity of this release and prevail in any claim under the Federal Discrimination Laws. By: /s/ Xxxxx Xxxxxxxxx Executive: Xxxxx Xxxxxxxxx Date signed: January 6, 2016

Your Release of Claims. You hereby agree and acknowledge that, that by signing this Agreement and accepting the Severance PayAgreement, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company1/ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ attorneys fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Age Discrimination in Employment Act, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Americans With Disabilities Act and any similar Federal and state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of employment. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. ** Any other Claim arising under state or federal law. 1/ For purposes of this Agreement, the Company includes Sera Prognostics, Inc. the Company and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns. Notwithstanding the foregoing, nothing contained in this Release constitutes a waiver of any Claims you may have against the Company arising from or related to the Indemnification Agreement and By-laws provisions referenced in Section 8 of the Employment Agreement, dated January 1, 2014, entered into between you and the Company. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Agreement. It is the Company’s desire and intent to make certain that you fully understand the provisions and effects of this Agreement. To that end, you have been encouraged and given the opportunity to consult with legal counsel for the purpose of reviewing the terms of this Agreement. Also, because you are over the age of 40 and consistent with the provisions of the Age Discrimination in Employment Act (“ADEA”), which prohibits discrimination on the basis of age, the Company is providing you with twenty-one (21) days in which to consider and accept the terms of this Agreement by signing below and returning it to me at: [name], [address]. You may rescind your assent to this Agreement if, within seven (7) days after you sign this Agreement, you deliver by hand or send by mail (certified, return receipt and postmarked within such 7 day period) a notice of rescission to me at the Company. The eighth day following your signing of this Agreement is the Effective Date. Also, consistent with the provisions of Federal and state discrimination laws, nothing in this release shall be deemed to prohibit you from challenging the validity of this release under such discrimination laws (the “ Discrimination Laws”) or from filing a charge or complaint of age or other employment related discrimination with the Equal Employment Opportunity Commission (“EEOC”) or state equivalent, or from participating in any investigation or proceeding conducted by the EEOC or state equivalent. Further, nothing in this release or Agreement shall be deemed to limit the Company’s right to seek immediate dismissal of such charge or complaint on the basis that your signing of this Agreement constitutes a full release of any individual rights under the Discrimination Laws, or to seek restitution to the extent permitted by law of the economic benefits provided to you under this Agreement in the event that you successfully challenge the validity of this release and prevail in any claim under the Discrimination Laws. By: Pxxx XxXxxxxx Date signed: Exhibit B Compromise Agreement COMPROMISE AGREEMENT THIS COMPROMISE AGREEMENT (the “Agreement”) is made as of [•] by and between Cyclacel Pharmaceuticals, Inc. (the “Employer”) and Pxxx XxXxxxxx (the “Executive”).

Your Release of Claims. You By signing this Agreement, you hereby agree and acknowledge that, by signing this Agreement and accepting the Severance Pay, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company1/ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Age Discrimination in Employment Act, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Equal Pay Act, the Americans With Disabilities Act and any similar Federal and state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of employment. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. ** Any other Claim arising under state or federal law. 1/ For purposes of this Agreement, the Company includes Sera Prognostics, Inc. the Company and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns.. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Agreement. You further acknowledge that this release does not waive any claims you cannot by law waive and does not release any claims that arise after its execution. It is the Company’s desire and intent to make certain that you fully understand the provisions and effects of this Agreement. To that end, you have been advised and given the opportunity to consult with legal counsel for the purpose of reviewing the terms of this Agreement. Also, because you are over the age of 40, the Age Discrimination in Employment Act (“ADEA”), which prohibits discrimination on the basis of age, allows you at least twenty-one (21) days to consider the terms of this Agreement. ADEA also allows you to rescind your assent to this Agreement if, within seven (7) days after you sign this Agreement, you deliver by hand or send by mail (certified, return receipt and postmarked within such 7 day period) a notice of rescission to the Company. The eighth day following your signing of this Agreement is the Effective Date. Also, consistent with the provisions of Federal law, nothing in this release shall be deemed to prohibit you from challenging the validity of this release under the discrimination laws (the “Federal Discrimination Laws”) or from filing a charge or complaint of employment-related discrimination with the Equal Employment Opportunity Commission (“EEOC”) or any state fair employment practices agency, or from participating in any investigation or proceeding conducted by the EEOC or any state fair employment practices agency. Further, nothing in this release or Agreement shall be deemed to limit the Company’s right to seek immediate dismissal of such charge or complaint on the basis that your signing of this Agreement constitutes a full release of any individual rights under the Federal Discrimination Laws, or to seek restitution to the extent permitted by law of the economic benefits provided to you under this Agreement in the event that you successfully challenge the validity of this release and prevail in any claim under the Federal Discrimination Laws. By: Executive: Date signed: March 1, 2018

Your Release of Claims. You hereby agree and acknowledge that, that by signing this Agreement and accepting the Severance PayAgreement, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company1/ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ attorneys fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Age Discrimination in Employment Act, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Americans With Disabilities Act and any similar Federal and state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of employment. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. ______________ 1/ For purposes of this Agreement, the Company includes Sera Prognostics, Inc. the Company and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns.. ** Any other Claim arising under state or federal law. Notwithstanding the foregoing, nothing contained in this Release constitutes a waiver of any Claims you may have against the Company arising from or related to the Indemnification Agreement and By-laws provisions referenced in Section 8 of the Employment Agreement, dated January 1, 2008, entered into between you and the Company. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Agreement. It is the Company’s desire and intent to make certain that you fully understand the provisions and effects of this Agreement. To that end, you have been encouraged and given the opportunity to consult with legal counsel for the purpose of reviewing the terms of this Agreement. Also, because you are over the age of 40 and consistent with the provisions of the Age Discrimination in Employment Act (“ADEA”), which prohibits discrimination on the basis of age, the Company is providing you with twenty-one (21) days in which to consider and accept the terms of this Agreement by signing below and returning it to me at: [name], [address]. You may rescind your assent to this Agreement if, within seven (7) days after you sign this Agreement, you deliver by hand or send by mail (certified, return receipt and postmarked within such 7 day period) a notice of rescission to me at the Company. The eighth day following your signing of this Agreement is the Effective Date. Also, consistent with the provisions of Federal and state discrimination laws, nothing in this release shall be deemed to prohibit you from challenging the validity of this release under such discrimination laws (the “ Discrimination Laws”) or from filing a charge or complaint of age or other employment related discrimination with the Equal Employment Opportunity Commission (“EEOC”) or state equivalent, or from participating in any investigation or proceeding conducted by the EEOC or state equivalent. Further, nothing in this release or Agreement shall be deemed to limit the Company’s right to seek immediate dismissal of such charge or complaint on the basis that your signing of this Agreement constitutes a full release of any individual rights under the Discrimination Laws, or to seek restitution to the extent permitted by law of the economic benefits provided to you under this Agreement in the event that you successfully challenge the validity of this release and prevail in any claim under the Discrimination Laws. By: /s/ Xxxxx Xxxxxxxx Xxxxx Xxxxxxxx Date signed: March 20, 2008

Your Release of Claims. You hereby agree and acknowledge that, that by signing this Agreement and accepting the Severance Pay, benefits in Section 4 and the equity acceleration in Section 5 and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action by you, including but not limited to a class or collective action, whether you seek to participate as a party plaintiff or as a class member (each a “Claim” and jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 For purposes Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any local, state or federal discrimination, fair employment practices or other employment-related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the federal Age Discrimination in Employment Act, the Civil Rights Acts of 1866 and 1871, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Americans With Disabilities Act, the Federal Worker Adjustment and Retraining Notification Act; and any similar California, or other state, federal, or local statute. ** Claims under any other local, state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to any other terms and conditions of employment. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. ** Any other Claim arising under local, state or federal law. Notwithstanding the foregoing, this section does not release the Company from any obligation expressly set forth in this Agreement. Moreover, this section does not release any claims or entitlements you may have to indemnification from the Company includes Sera Prognosticsor the benefit of coverage under any D&O policies of insurance applicable to the period for which you served as a Company officer and director. You acknowledge and agree that, Inc. but for providing this waiver and any release, you would not be receiving the economic benefits described herein unless you sign and do not revoke this Agreement (and the Supplemental Release of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the CompanyClaims), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns.

Your Release of Claims. You By signing this Agreement, you hereby agree and acknowledge that, by signing this Agreement and accepting the Severance Pay, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company1/ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Age Discrimination in Employment Act, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Equal Pay Act, the Americans With Disabilities Act and any similar Federal and state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of employment. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. ** Any other Claim arising under state or federal law. 1 / For purposes of this Agreement, the Company includes Sera Prognostics, Inc. the Company and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns.. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Agreement. You further acknowledge that this release does not waive any claims you cannot by law waive and does not release any claims that arise after its execution. It is the Company’s desire and intent to make certain that you fully understand the provisions and effects of this Agreement. To that end, you have been advised and given the opportunity to consult with legal counsel for the purpose of reviewing the terms of this Agreement. Also, because you are over the age of 40, the Age Discrimination in Employment Act (“ADEA”), which prohibits discrimination on the basis of age, allows you at least twenty-one (21) days to consider the terms of this Agreement. ADEA also allows you to rescind your assent to this Agreement if, within seven (7) days after you sign this Agreement, you deliver by hand or send by mail (certified, return receipt and postmarked within such 7 day period) a notice of rescission to the Company. The eighth day following your signing of this Agreement is the Effective Date. Also, consistent with the provisions of Federal law, nothing in this release shall be deemed to prohibit you from challenging the validity of this release under the discrimination laws (the “Federal Discrimination Laws”) or from filing a charge or complaint of employment-related discrimination with the Equal Employment Opportunity Commission (“EEOC”) or any state fair employment practices agency, or from participating in any investigation or proceeding conducted by the EEOC or any state fair employment practices agency. Further, nothing in this release or Agreement shall be deemed to limit the Company’s right to seek immediate dismissal of such charge or complaint on the basis that your signing of this Agreement constitutes a full release of any individual rights under the Federal Discrimination Laws, or to seek restitution to the extent permitted by law of the economic benefits provided to you under this Agreement in the event that you successfully challenge the validity of this release and prevail in any claim under the Federal Discrimination Laws. By: Executive: Xxxxx Xxxxxx Date signed: ___________________ Exhibit B Incentive Compensation 2021 Annual variable compensation of $104K per year ● 40% on a pro-rata basis for the successful contracts with integrators that results in 20 3rd party reps making customer calls with 4 active accounts in their pipeline by end of year (meaning they made a call and it moved forward), for example; KPMG, Deloitte, USG, and mid-tier companies i.e. Quantum Retail. ● 40% on a pro-rata basis for beginning 10 Proofs of Concept and two referenceable accounts of Qatalyst. ● 20% on a pro-rata basis for the successful partnership with 3 new Software companies (delivering optimization solutions to target client areas) or Computing Hardware that expand our product value and sales capacity ● Up to 100,000 Options – vesting over three years - based upon meeting the performance criteria 2022 Annual variable compensation of $104K per year (based on review of prior year success) ● 25% on a pro-rata basis for the successful partnership with 9 new Software companies (delivering optimization solutions to target client areas) or Computing Hardware that expand our product value and sales capacity ● 25% on a pro-rata basis for the successful contracts with integrators that results in 50 3rd party reps making customer calls with 3-5 active accounts in their pipeline by end of year (meaning they made a call and it moved forward), for example; KPMG, Deloitte, USG, and mid-tier companies i.e. Quantum Retail ● 20% on a pro-rata basis for the Bookings of $5,000,000. o Bookings between $5,000,001 - $7,999,999 will be paid at 150% of the standard payments. o Bookings above $8,000,000 will be paid at 200% of the standard payments. ● 20% on a pro-rata basis for revenue recognition of $4,000,000 ● 10% on a pro-rata basis for beginning 25 new Proofs of Concept and 10 new referenceable accounts of Qatalyst ● Up to 100,000 Options – vesting over three years - based upon meeting the performance criteria 2023 Annual variable compensation of $104K per year (based on review of prior year success) ● 32% on a pro-rata basis for the Bookings of $15,000,000. o Bookings between $15,000,001 - $19,999,999 will be paid at 150% of the standard payments. o Bookings above $20,000,000 will be paid at 200% of the standard payments. ● 34% on a pro-rata basis for revenue recognition of $15,000,000. ● 34% on a pro-rata basis for 100 new contracts and 30 new referenceable accounts of Qatalyst ● Up to 100,000 Options – vesting over three years - based upon meeting the performance criteria

Your Release of Claims. You hereby agree and acknowledge that, that by signing this Agreement and accepting the Severance PayAgreement, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company1/ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ attorneys fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 For purposes Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Age Discrimination in Employment Act, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Equal Pay Act, the Americans With Disabilities Act and any similar Federal and state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of employment. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. ** Any other Claim arising under state or federal law. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Agreement. It is the Company’s desire and intent to make certain that you fully understand the provisions and effects of this Agreement. To that end, you have been encouraged and given the opportunity to consult with legal counsel for the purpose of reviewing the terms of this Agreement. Also, because you are over the age of 40, the Company includes Sera PrognosticsAge Discrimination in Employment Act (“ADEA”), Inc. which prohibits discrimination on the basis of age, allows you at least twenty-one (21) days to consider the terms of this Agreement. ADEA also allows you to rescind your assent to this Agreement if, within seven (7) days after you sign this Agreement, you deliver by hand or send by mail (certified, return receipt and any postmarked within such 7 day period) a notice of its divisionsrescission to the Company. The eighth day following your signing of this Agreement is the Effective Date. Also, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control consistent with the Companyprovisions of the Federal Discrimination Laws, nothing in this release shall be deemed to prohibit you from challenging the validity of this release under the discrimination laws (the “Federal Discrimination Laws”) or from filing a charge or complaint of employment-related discrimination with the Equal Employment Opportunity Commission (“EEOC”), parentsor from participating in any investigation or proceeding conducted by the EEOC. Further, subsidiaries nothing in this release or Agreement shall be deemed to limit the Company’s right to seek immediate dismissal of such charge or complaint on the basis that your signing of this Agreement constitutes a full release of any individual rights under the Federal Discrimination Laws, or to seek restitution to the extent permitted by law of the economic benefits provided to you under this Agreement in the event that you successfully challenge the validity of this release and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns.prevail in any claim under the Federal Discrimination Laws. By: __________________________ Employee Date signed: _____________

Your Release of Claims. You hereby agree and acknowledge that, that by signing this Agreement and accepting the Severance PayAgreement, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company1/ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ attorneys fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Age Discrimination in Employment Act, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Americans With Disabilities Act and any similar Federal and state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of employment. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. ** Any other Claim arising under state or federal law. 1/ For purposes of this Agreement, the Company includes Sera Prognostics, Inc. the Company and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns.. Notwithstanding the foregoing, nothing contained in this Release constitutes a waiver of any Claims you may have against the Company arising from or related to the Indemnification Agreement and By-laws provisions referenced in Section 8 of the Employment Agreement, dated January 1, 2011, entered into between you and the Company. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Agreement. It is the Company’s desire and intent to make certain that you fully understand the provisions and effects of this Agreement. To that end, you have been encouraged and given the opportunity to consult with legal counsel for the purpose of reviewing the terms of this Agreement. Also, because you are over the age of 40 and consistent with the provisions of the Age Discrimination in Employment Act (“ADEA”), which prohibits discrimination on the basis of age, the Company is providing you with twenty-one (21) days in which to consider and accept the terms of this Agreement by signing below and returning it to me at: [name], [address]. You may rescind your assent to this Agreement if, within seven (7) days after you sign this Agreement, you deliver by hand or send by mail (certified, return receipt and postmarked within such 7 day period) a notice of rescission to me at the Company. The eighth day following your signing of this Agreement is the Effective Date. Also, consistent with the provisions of Federal and state discrimination laws, nothing in this release shall be deemed to prohibit you from challenging the validity of this release under such discrimination laws (the “ Discrimination Laws”) or from filing a charge or complaint of age or other employment related discrimination with the Equal Employment Opportunity Commission (“EEOC”) or state equivalent, or from participating in any investigation or proceeding conducted by the EEOC or state equivalent. Further, nothing in this release or Agreement shall be deemed to limit the Company’s right to seek immediate dismissal of such charge or complaint on the basis that your signing of this Agreement constitutes a full release of any individual rights under the Discrimination Laws, or to seek restitution to the extent permitted by law of the economic benefits provided to you under this Agreement in the event that you successfully challenge the validity of this release and prevail in any claim under the Discrimination Laws. By: Xxxxx Xxxxxxxx Date signed:

Your Release of Claims. (a) You hereby agree and acknowledge that, that by signing this Agreement and accepting the Severance PayAgreement, and for other good and valuable considerationconsideration provided for in this Agreement, you are waiving and releasing your right to assert any and all forms form of legal claims claim against the Company1 of Company1/ whatsoever for any kind whatsoeveralleged action, whether known inaction or unknown, circumstance existing or arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Separation Date. Except as set forth below, your Your waiver and release herein is intended to bar any form of legal claim, charge, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, damages or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ attorney’s fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Separation Date. 1 For purposes Without limiting the foregoing, you specifically waive and release the Company from any waivable claim arising from or related to your employment relationship with the Company up through the Separation Date including, without limitation: (i) claims under any Massachusetts or any other state or federal statute, regulation or executive order (as amended) relating to employment, fair employment practices, termination, discrimination, wages, hours, leaves of this Agreementabsence, and any other terms and conditions of employment, including the Age Discrimination in Employment Act, the Company includes Sera PrognosticsOlder Workers Benefit Protection Act, Inc. the Civil Rights Acts of 1866 and 1871, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Equal Pay Act, the Americans With Disabilities Act, the Genetic Information Nondiscrimination Act, the Uniformed Services Employment and Reemployment Rights Act of 1994, the Xxxx Xxxxxxxxx Fair Pay Act, the National Labor Relations Act, the Family and Medical Leave Act, the Employee Retirement Income Security Act of 1974, COBRA, the Worker Adjustment and Retraining Notification Act, the Massachusetts Fair Employment Practices Statute, the Massachusetts Equal Rights Act, the Massachusetts Civil Rights Act, the Massachusetts Privacy Statute, the Massachusetts Sexual Harassment Statute, the Massachusetts Wage Act, the Massachusetts Minimum Fair Wages Act, the Massachusetts Equal Pay Act, and any similar Massachusetts or other state or federal statute; please note ACTIVE/100565275.4 that this section specifically includes a waiver and release of its divisionsclaims regarding payments covered by the Massachusetts Wage Act or the Massachusetts Minimum Fair Wages Act, affiliates including hourly wages, salary, overtime, minimum wages, commissions, vacation pay, holiday pay, sick leave pay, dismissal pay, bonus pay or severance pay; (which means all persons ii) claims under any Massachusetts or any other state or federal common law theory, including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and entities directly fair dealing, retaliation, violation of public policy, defamation, interference with contractual relations, intentional or indirectly controllingnegligent infliction of emotional distress, controlled by invasion of privacy, misrepresentation, deceit, fraud or negligence or any claim to attorneys’ fees under any applicable statute or common control with the Company), parents, subsidiaries law theory of recovery; and all (iii) any other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assignsclaim arising under any Massachusetts or other state or federal law.

Your Release of Claims. You hereby agree and acknowledge that, that by signing this Agreement and accepting the Severance PayAgreement, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company1/ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ attorneys fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Age Discrimination in Employment Act, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Americans With Disabilities Act and any similar Federal and state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of employment. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, 1/ For purposes of this Agreement, the Company includes Sera Prognostics, Inc. the Company and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns. misrepresentation, deceit, fraud or negligence. ** Any other Claim arising under state or federal law. Notwithstanding the foregoing, nothing contained in this Release constitutes a waiver of any Claims you may have against the Company arising from or related to the Indemnification Agreement and By-laws provisions referenced in Section 8 of the Employment Agreement, dated January 1, 2014, entered into between you and the Company. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Agreement. It is the Company’s desire and intent to make certain that you fully understand the provisions and effects of this Agreement. To that end, you have been encouraged and given the opportunity to consult with legal counsel for the purpose of reviewing the terms of this Agreement. Also, because you are over the age of 40 and consistent with the provisions of the Age Discrimination in Employment Act (“ADEA”), which prohibits discrimination on the basis of age, the Company is providing you with twenty-one (21) days in which to consider and accept the terms of this Agreement by signing below and returning it to me at: [name], [address]. You may rescind your assent to this Agreement if, within seven (7) days after you sign this Agreement, you deliver by hand or send by mail (certified, return receipt and postmarked within such 7 day period) a notice of rescission to me at the Company. The eighth day following your signing of this Agreement is the Effective Date. Also, consistent with the provisions of Federal and state discrimination laws, nothing in this release shall be deemed to prohibit you from challenging the validity of this release under such discrimination laws (the “ Discrimination Laws”) or from filing a charge or complaint of age or other employment related discrimination with the Equal Employment Opportunity Commission (“EEOC”) or state equivalent, or from participating in any investigation or proceeding conducted by the EEOC or state equivalent. Further, nothing in this release or Agreement shall be deemed to limit the Company’s right to seek immediate dismissal of such charge or complaint on the basis that your signing of this Agreement constitutes a full release of any individual rights under the Discrimination Laws, or to seek restitution to the extent permitted by law of the economic benefits provided to you under this Agreement in the event that you successfully challenge the validity of this release and prevail in any claim under the Discrimination Laws. By: Pxxx XxXxxxxx Date signed: Exhibit B Compromise Agreement COMPROMISE AGREEMENT THIS COMPROMISE AGREEMENT (the “Agreement”) is made as of [•] by and between Cyclacel Pharmaceuticals, Inc. (the “Employer”) and Pxxx XxXxxxxx (the “Executive”).

Your Release of Claims. You hereby agree In consideration for, among other terms, the severance payments discussed in Section 2, to which you acknowledge you would otherwise not be entitled, you voluntarily release and acknowledge forever discharge the Company, its subsidiaries or other affiliated and related entities, its and their respective predecessors, successors and assigns, its and their respective employee benefit plans and fiduciaries of such plans, and the current and former Xxxxxxxx Xxxxxx August 23, 2013 officers, trustees, shareholders, employees, attorneys, accountants and agents of each of the foregoing in their official and personal capacities (collectively referred to as the “Releasees”) generally from all claims, demands, debts, damages and liabilities of every name and nature, known or unknown (“Claims”) that, by signing as of the date when you sign this Agreement and accepting the Severance Pay, and for other good and valuable considerationSeparation Agreement, you are waiving have, ever had, now claim to have or ever claimed to have had against any or all of the Releasees. This release includes, without limitation, all Claims: • relating to your right to assert any employment by and all forms termination of legal claims against employment with the Company1 Company; • of any kind whatsoever, whether known wrongful discharge or unknown, arising from the beginning violation of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as public policy; • of Execution Date, you have not filed any complaints, claims, charges, actions, grievances breach of contract; • of defamation or arbitrations against the Company other torts; • of retaliation or otherwise contacted any U.S. discrimination under federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back payClaims of discrimination or retaliation under the Age Discrimination in Employment Act, front paythe Americans with Disabilities Act, and Title VII of the Civil Rights Act of 1964); • under any other federal or state statute (including, without limitation, Claims under the Fair Labor Standards Act); • for wages, bonuses, incentive compensation, vacation pay or any other compensation or benefits, either under the Massachusetts Wage Act, M.G.L. c. 149, §§148-150C, or otherwise; and • for damages or other remedies of any sort, including, without limitation, compensatory damages, emotional distress damages, punitive damages, injunctive relief and attorneys’ fees; provided, however, that this release shall not affect your rights under this Separation Agreement. You agree not to accept damages of any nature, other equitable or legal remedies for your own benefit or attorneys’ fees and or costs from any other costs) against of the Company, for Releasees with respect to any alleged action, inaction or circumstance existing or arising through Claim released by this Separation Agreement. As a material inducement to the Execution Date. 1 For purposes of Company to enter into this Separation Agreement, you represent that you have not assigned any Claim to any third party. It is hereby acknowledged that if the Company includes Sera Prognosticsseverance payment is not paid, Inc. or is suspended or recouped pursuant to applicable law, this release shall be null and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assignsvoid.

Your Release of Claims. You hereby agree and acknowledge that, that by signing this Agreement and accepting the Severance Separation Pay, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company1/ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, charge, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ attorneys fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the separation thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any 1/ For purposes of this Agreement, the Company includes Sera Prognostics, Inc. the Company and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns. Claims arising under the Federal Age Discrimination in Employment Act, the Civil Rights Acts of 1866 and 1871, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Equal Pay Act, the Americans With Disabilities Act, the California Fair Employment and Housing Act, the California Labor Code and any similar California or other state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of employment. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. ** Any other Claim arising under state or federal law. In addition to the forgoing, you hereby agree that you waive all rights under section 1542 of the Civil Code of the State of California. Section 1542 provides that: A general release does not extend to claims which the creditor does not know or suspect to exist in his favor at the time of executing the release, which if known by him must have materially affected his settlement with the debtor. Pursuant to section 1542, you acknowledge that you may hereafter discover facts different from or in addition to facts which you now know or believe to be true with regard to the released claims, and further agree that this Agreement shall remain effective in all respects not withstanding such discovery of new or different facts, including any such facts which may give rise to currently unknown claims, including but not limited to any claims or rights which you may have under section 1542 of the California Civil Code. Notwithstanding the foregoing, this section does not release the Company from any obligation expressly set forth in this Agreement. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Agreement. It is the Company’s desire and intent to make certain that you fully understand the provisions and effects of this Agreement. To that end, you have been encouraged and given the opportunity to consult with legal counsel for the purpose of reviewing the terms of this Agreement. Also, because you are over the age of 40, and consistent with the provisions of the Age Discrimination in Employment Act (“ADEA”), which prohibits discrimination on the basis of age, the Company is providing you with twenty-one (21) days in which to consider and accept the terms of this Agreement by signing below and returning it to Xxxx Xxxxxx at the Company. In addition, you may rescind your assent to this Agreement if, within seven (7) days after you sign this Agreement, you deliver by hand or send by mail (certified, return receipt and postmarked within such 7 day period) a notice of rescission to Xxxx Xxxxxx at the Company. The eighth day following your signing of this Agreement is the Effective Date. Also, consistent with the provisions of the Federal Discrimination Laws, nothing in this release shall be deemed to prohibit you from challenging the validity of this release under the federal age or other discrimination laws (the “Federal Discrimination Laws”) or from filing a charge or complaint of employment-related discrimination with the Equal Employment Opportunity Commission (“EEOC”), or from participating in any investigation or proceeding conducted by the EEOC. Further, nothing in this release or Agreement shall be deemed to limit the Company’s right to seek immediate dismissal of such charge or complaint on the basis that your signing of this Agreement constitutes a full release of any individual rights under the Federal Discrimination Laws, or to seek restitution to the extent permitted by law of the economic benefits provided to you under this Agreement in the event that you successfully challenge the validity of this release and prevail in any claim under the Federal Discrimination Laws.

Your Release of Claims. You By signing this Agreement, you hereby agree and acknowledge that, by signing this Agreement and accepting the Severance Pay, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company1/ For purposes of this Agreement, the Company includes the Company and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), subsidiaries and all other related entities, and its and their directors, officers, employees, trustees, agents, successors and assigns./ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ attorney’s fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Age Discrimination in Employment Act, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Equal Pay Act, the Americans With Disabilities Act and any similar Federal and state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of employment. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. ** Any other Claim arising under state or federal law. _____________________________________ 1/ For purposes of this Agreement, the Company includes Sera Prognostics, Inc. the Company and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns.. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Agreement. You further acknowledge that this release does not waive any claims you cannot by law waive and does not release any claims that arise after its execution. It is the Company’s desire and intent to make certain that you fully understand the provisions and effects of this Agreement. To that end, you have been advised and given the opportunity to consult with legal counsel for the purpose of reviewing the terms of this Agreement. Also, because you are over the age of 40, the Age Discrimination in Employment Act (“ADEA”), which prohibits discrimination on the basis of age, allows you at least twenty-one (21) days to consider the terms of this Agreement. ADEA also allows you to rescind your assent to this Agreement if, within seven (7) days after you sign this Agreement, you deliver by hand or send by mail (certified, return receipt and postmarked within such 7 day period) a notice of rescission to the Company. The eighth day following your signing of this Agreement is the Effective Date. Also, consistent with the provisions of Federal law, nothing in this release shall be deemed to prohibit you from challenging the validity of this release under the discrimination laws (the “Federal Discrimination Laws”) or from filing a charge or complaint of employment-related discrimination with the Equal Employment Opportunity Commission (“EEOC”) or any state fair employment practices agency, or from participating in any investigation or proceeding conducted by the EEOC or any state fair employment practices agency. Further, nothing in this release or Agreement shall be deemed to limit the Company’s right to seek immediate dismissal of such charge or complaint on the basis that your signing of this Agreement constitutes a full release of any individual rights under the Federal Discrimination Laws, or to seek restitution to the extent permitted by law of the economic benefits provided to you under this Agreement in the event that you successfully challenge the validity of this release and prevail in any claim under the Federal Discrimination Laws. By:__________________________ Employee Date signed: _____________

Your Release of Claims. You By signing this Agreement, you hereby agree and acknowledge that, by signing this Agreement and accepting the Severance Pay, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company1/ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 For purposes Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Age Discrimination in Employment Act, Title VII of this Agreementthe Civil Rights Act of 1964, the Company includes Sera PrognosticsCivil Rights Act of 1991, Inc. the Equal Pay Act, the Americans With Disabilities Act and any similar Federal and state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of its divisionsemployment. ** Claims under any state or federal common law theory including, affiliates (which means all persons without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and entities directly or indirectly controllingfair dealing, controlled by or under common control violation of public policy, defamation, interference with the Company)contractual relations, parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns.intentional or

Your Release of Claims. You hereby agree and acknowledge that, that by signing this Agreement and accepting the Severance Payrelease agreement (this “Release), and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company1/ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement Release (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ attorneys fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 For purposes This Release does not include a waiver and release of any of your currently vested rights to pension benefits (including benefits pursuant to Company’s 401(k) pension plan), workers’ compensation benefits, or unemployment compensation benefits. This Agreement does not waive or release any rights that may arise after the date on which you sign this Release, or claims concerning an alleged breach of the outstanding obligations of the Company under your Employment Agreement. This Release also does not include claims that cannot be waived by law. Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Age Discrimination in Employment Act, Title VII of the Civil Rights Act of 1964, the Company includes Sera PrognosticsCivil Rights Act of 1991, Inc. the Equal Pay Act, the Americans With Disabilities Act and any similar Federal and state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of its divisionsemployment. ** Claims under any state or federal common law theory including, affiliates (which means all persons without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and entities directly fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or indirectly controllingnegligent infliction of emotional distress, controlled by invasion of privacy, misrepresentation, deceit, fraud or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assignsnegligence.

Your Release of Claims. You By signing this Agreement, you hereby agree and acknowledge that, by signing this Agreement and accepting the Severance Pay, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company12/ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Age Discrimination in Employment Act, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Equal Pay Act, the Americans With Disabilities Act and any similar Federal and state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of employment. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. 11/ For purposes of this Agreement, the Company includes Sera Prognostics, Inc. the Company and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns.. ** Any other Claim arising under state or federal law. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Agreement. You further acknowledge that this release does not waive any claims you cannot by law waive and does not release any claims that arise after its execution. It is the Company’s desire and intent to make certain that you fully understand the provisions and effects of this Agreement. To that end, you have been advised and given the opportunity to consult with legal counsel for the purpose of reviewing the terms of this Agreement. Also, because you are over the age of 40, the Age Discrimination in Employment Act (“ADEA”), which prohibits discrimination on the basis of age, allows you at least twenty-one (21) days to consider the terms of this Agreement. ADEA also allows you to rescind your assent to this Agreement if, within seven (7) days after you sign this Agreement, you deliver by hand or send by mail (certified, return receipt and postmarked within such 7 day period) a notice of rescission to the Company. The eighth day following your signing of this Agreement is the Effective Date. Also, consistent with the provisions of Federal law, nothing in this release shall be deemed to prohibit you from challenging the validity of this release under the discrimination laws (the “Federal Discrimination Laws”) or from filing a charge or complaint of employment-related discrimination with the Equal Employment Opportunity Commission (“EEOC”) or any state fair employment practices agency, or from participating in any investigation or proceeding conducted by the EEOC or any state fair employment practices agency. Further, nothing in this release or Agreement shall be deemed to limit the Company’s right to seek immediate dismissal of such charge or complaint on the basis that your signing of this Agreement constitutes a full release of any individual rights under the Federal Discrimination Laws, or to seek restitution to the extent permitted by law of the economic benefits provided to you under this Agreement in the event that you successfully challenge the validity of this release and prevail in any claim under the Federal Discrimination Laws. By: /s/ Xxxx Xxxxxxxxx Executive: Xxxx Xxxxxxxxx Date signed: January 6, 2016

Your Release of Claims. (a) You hereby agree and acknowledge that, that by signing this Agreement and accepting the Severance PayAgreement, and for other good and valuable considerationconsideration provided for in this Agreement, you are waiving and releasing your right to assert any and all forms form of legal claims claim against the Company1 of Company(1) whatsoever for any kind whatsoeveralleged action, whether known inaction or unknown, circumstance existing or arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Separation Date. Except as set forth below, your Your waiver and release herein is intended to bar any form of legal claim, charge, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, damages or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ attorney’s fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Separation Date. 1 For purposes Without limiting the foregoing, you specifically waive and release the Company from any waivable claim arising from or related to your employment relationship with the Company up through the Separation Date including, without limitation: (i) claims under any Massachusetts or any other state or federal statute, regulation or executive order (as amended) relating to employment, fair employment practices, termination, discrimination, wages, hours, leaves of this Agreementabsence, and any other terms and conditions of employment, including the Age Discrimination in Employment Act, the Company includes Sera PrognosticsOlder Workers Benefit Protection Act, Inc. the Civil Rights Acts of 1866 and 1871, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Equal Pay Act, the Americans With Disabilities Act, the Genetic Information Nondiscrimination Act, the Uniformed Services Employment and Reemployment Rights Act of 1994, the Xxxx Xxxxxxxxx Fair Pay Act, the National Labor Relations Act, the Family and Medical Leave Act, the Employee Retirement Income Security Act of 1974, COBRA, the Worker Adjustment and Retraining Notification Act, the Massachusetts Fair Employment Practices Statute, the Massachusetts Equal Rights Act, the Massachusetts Civil Rights Act, the Massachusetts Privacy Statute, the Massachusetts Sexual Harassment Statute, the Massachusetts Wage Act, the Massachusetts Minimum Fair Wages Act, the Massachusetts Equal Pay Act, and any similar Massachusetts or other state or federal statute; please note that this section specifically includes a waiver and release of its divisionsclaims regarding payments covered by the Massachusetts Wage Act or the Massachusetts Minimum Fair Wages Act, affiliates including hourly wages, salary, overtime, minimum wages, commissions, vacation pay, holiday pay, sick leave pay, dismissal pay, bonus pay or severance pay; (which means all persons ii) claims under any Massachusetts or any other state or federal common law theory, including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and entities directly fair dealing, retaliation, violation of public policy, defamation, interference with contractual relations, intentional or indirectly controllingnegligent infliction of emotional distress, controlled by invasion of privacy, misrepresentation, deceit, fraud or negligence or any claim to attorneys’ fees under any applicable statute or common control with the Company), parents, subsidiaries law theory of recovery; and all (iii) any other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assignsclaim arising under any Massachusetts or other state or federal law.

Your Release of Claims. You hereby agree and acknowledge that, by signing this Agreement and accepting the Severance PayIn consideration for, and for other good and valuable considerationas a condition to, the receipt of the above payments stated in paragraph 3 above, you are waiving your right covenant not to assert xxx Releasees and completely release and forever discharge Releasees from all claims, rights, obligations, and causes of action of any and all forms of legal claims against the Company1 of any every kind whatsoeverand character, whether known or unknown, asserted or unasserted, which you may now have, or have ever had, arising from or in any way connected with or arising from your employment, and the beginning termination of time through the date you execute this Agreement your employment as Chief Financial Officer. This release includes without limitation all: (the “Execution Date”). You acknowledge that as a) "wrongful discharge" claims; (b) claims relating to any express or implied contracts regarding your employment or its termination; (c) claims alleging violation of Execution Dateany federal, you have not filed any complaintsstate, or local law, municipal statute, ordinance, regulation or constitution; (d) common law claims, chargesincluding tort and contract claims, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business claims alleging breach of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver covenant of good faith and release herein is intended to bar any form fair dealing and claims alleging violation of legal claim, complaint or any other form of action public policy; (jointly referred to as “Claims”e) against the Company seeking any form of relief including, without limitation, claims for attorneys’ fees and costs; (f) claims for monetary and equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form and (g) claims seeking payment of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damagestaxes, attorneys’ fees or costs. This release specifically includes any and any other costs) against all claims or causes of action that may be legally released and waived arising under Title VII of the Company, for any alleged action, inaction or circumstance existing or arising through Civil Rights Act of 1964; the Execution Date. 1 For purposes Equal Pay Act of this Agreement1963; the Civil Rights Act of 1991; the Civil Rights Act of 1866; the Age Discrimination in Employment Act of 1967 (“ADEA”); the Older Workers Benefit Protection Act (“OWBPA”); the Americans with Disabilities Act; the Employee Retirement Income Security Act; the Worker Adjustment and Retraining Notification Act of 1988; the Fair Credit Reporting Act; the Immigration Reform and Control Act; the Corporate and Criminal Fraud Accountability Act also known as the Sarbanes Oxley Act; the Family and Medical Leave Act; the Patient Protection and Affordable Care Act; the Health Care and Education Reconciliation Act of 2010; the Uniformed Services Employment and Reemployment Rights Act; the New York State Human Rights Law, the Company includes Sera PrognosticsNew York Equal Rights Law, Inc. and any of its divisionsthe New York Labor Law, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns.Administrative Code ​

Your Release of Claims. You By signing this Agreement, you hereby agree and acknowledge that, by signing this Agreement and accepting the Severance Pay, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company1/ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ attorneys fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Age Discrimination in Employment Act, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Equal Pay Act, the Americans With Disabilities Act and any similar Federal and state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of employment. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. ** Any other Claim arising under state or federal law. 1/ For purposes of this Agreement, the Company includes Sera Prognostics, Inc. the Company and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns.. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Agreement. You further acknowledge that this release does not waive any claims you cannot by law waive and does not release any claims that arise after its execution. It is the Company’s desire and intent to make certain that you fully understand the provisions and effects of this Agreement. To that end, you have been advised and given the opportunity to consult with legal counsel for the purpose of reviewing the terms of this Agreement. Also, because you are over the age of 40, the Age Discrimination in Employment Act (“ADEA”), which prohibits discrimination on the basis of age, allows you at least twenty-one (21) days to consider the terms of this Agreement. ADEA also allows you to rescind your assent to this Agreement if, within seven (7) days after you sign this Agreement, you deliver by hand or send by mail (certified, return receipt and postmarked within such 7 day period) a notice of rescission to the Company. The eighth day following your signing of this Agreement is the Effective Date. Also, consistent with the provisions of Federal law, nothing in this release shall be deemed to prohibit you from challenging the validity of this release under the discrimination laws (the “Federal Discrimination Laws”) or from filing a charge or complaint of employment-related discrimination with the Equal Employment Opportunity Commission (“EEOC”) or any state fair employment practices agency, or from participating in any investigation or proceeding conducted by the EEOC or any state fair employment practices agency. Further, nothing in this release or Agreement shall be deemed to limit the Company’s right to seek immediate dismissal of such charge or complaint on the basis that your signing of this Agreement constitutes a full release of any individual rights under the Federal Discrimination Laws, or to seek restitution to the extent permitted by law of the economic benefits provided to you under this Agreement in the event that you successfully challenge the validity of this release and prevail in any claim under the Federal Discrimination Laws. By: /s/ Xxxxxxx XxXxxx Executive Date signed: March 31, 2015

Your Release of Claims. You By signing this Agreement, you hereby agree and acknowledge that, by signing this Agreement and accepting the Severance Pay, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company12/ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Age Discrimination in Employment Act, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Equal Pay Act, the Americans With Disabilities Act and any similar Federal and state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of employment. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. 11/ For purposes of this Agreement, the Company includes Sera Prognostics, Inc. the Company and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns.. ** Any other Claim arising under state or federal law. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Agreement. You further acknowledge that this release does not waive any claims you cannot by law waive and does not release any claims that arise after its execution. It is the Company’s desire and intent to make certain that you fully understand the provisions and effects of this Agreement. To that end, you have been advised and given the opportunity to consult with legal counsel for the purpose of reviewing the terms of this Agreement. Also, because you are over the age of 40, the Age Discrimination in Employment Act (“ADEA”), which prohibits discrimination on the basis of age, allows you at least twenty-one (21) days to consider the terms of this Agreement. ADEA also allows you to rescind your assent to this Agreement if, within seven (7) days after you sign this Agreement, you deliver by hand or send by mail (certified, return receipt and postmarked within such 7 day period) a notice of rescission to the Company. The eighth day following your signing of this Agreement is the Effective Date. Also, consistent with the provisions of Federal law, nothing in this release shall be deemed to prohibit you from challenging the validity of this release under the discrimination laws (the “Federal Discrimination Laws”) or from filing a charge or complaint of employment-related discrimination with the Equal Employment Opportunity Commission (“EEOC”) or any state fair employment practices agency, or from participating in any investigation or proceeding conducted by the EEOC or any state fair employment practices agency. Further, nothing in this release or Agreement shall be deemed to limit the Company’s right to seek immediate dismissal of such charge or complaint on the basis that your signing of this Agreement constitutes a full release of any individual rights under the Federal Discrimination Laws, or to seek restitution to the extent permitted by law of the economic benefits provided to you under this Agreement in the event that you successfully challenge the validity of this release and prevail in any claim under the Federal Discrimination Laws. By: /s/ Xxxxxxx XxXxxx Executive: Xxxxxxx XxXxxx, Ph.D. Date signed: January 6, 2016

Your Release of Claims. You By signing this Agreement, you hereby agree and acknowledge that, by signing this Agreement and accepting the Severance Pay, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company1/ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ attorneys fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Age Discrimination in Employment Act, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Equal Pay Act, the Americans With Disabilities Act and any similar Federal and state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of employment. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. ** Any other Claim arising under state or federal law. For purposes of this Agreement, the Company includes Sera Prognostics, Inc. the Company and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns.. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Agreement. You further acknowledge that this release does not waive any claims you cannot by law waive and does not release any claims that arise after its execution. It is the Company’s desire and intent to make certain that you fully understand the provisions and effects of this Agreement. To that end, you have been advised and given the opportunity to consult with legal counsel for the purpose of reviewing the terms of this Agreement. Also, because you are over the age of 40, the Age Discrimination in Employment Act (“ADEA”), which prohibits discrimination on the basis of age, allows you at least twenty-one (21) days to consider the terms of this Agreement. ADEA also allows you to rescind your assent to this Agreement if, within seven (7) days after you sign this Agreement, you deliver by hand or send by mail (certified, return receipt and postmarked within such 7 day period) a notice of rescission to the Company. The eighth day following your signing of this Agreement is the Effective Date. Also, consistent with the provisions of Federal law, nothing in this release shall be deemed to prohibit you from challenging the validity of this release under the discrimination laws (the “Federal Discrimination Laws”) or from filing a charge or complaint of employment-related discrimination with the Equal Employment Opportunity Commission (“EEOC”) or any state fair employment practices agency, or from participating in any investigation or proceeding conducted by the EEOC or any state fair employment practices agency. Further, nothing in this release or Agreement shall be deemed to limit the Company’s right to seek immediate dismissal of such charge or complaint on the basis that your signing of this Agreement constitutes a full release of any individual rights under the Federal Discrimination Laws, or to seek restitution to the extent permitted by law of the economic benefits provided to you under this Agreement in the event that you successfully challenge the validity of this release and prevail in any claim under the Federal Discrimination Laws. By: /s/ Wxxxxxx XxXxxx Executive Date signed: March 19, 2012

Your Release of Claims. You hereby agree and acknowledge that, that by signing this Agreement and accepting the Severance PayAgreement, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company1/ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ attorneys fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Age Discrimination in Employment Act, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Americans With Disabilities Act and any similar Federal and state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of employment. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. ** Any other Claim arising under state or federal law. 1/ For purposes of this Agreement, the Company includes Sera Prognostics, Inc. the Company and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns. Notwithstanding the foregoing, nothing contained in this Release constitutes a waiver of any Claims you may have against the Company arising from or related to the Indemnification Agreement and By-laws provisions referenced in Section 8 of the Employment Agreement, dated January 1, 2011, entered into between you and the Company. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Agreement. It is the Company’s desire and intent to make certain that you fully understand the provisions and effects of this Agreement. To that end, you have been encouraged and given the opportunity to consult with legal counsel for the purpose of reviewing the terms of this Agreement. Also, because you are over the age of 40 and consistent with the provisions of the Age Discrimination in Employment Act (“ADEA”), which prohibits discrimination on the basis of age, the Company is providing you with twenty-one (21) days in which to consider and accept the terms of this Agreement by signing below and returning it to me at: [name], [address]. You may rescind your assent to this Agreement if, within seven (7) days after you sign this Agreement, you deliver by hand or send by mail (certified, return receipt and postmarked within such 7 day period) a notice of rescission to me at the Company. The eighth day following your signing of this Agreement is the Effective Date. Also, consistent with the provisions of Federal and state discrimination laws, nothing in this release shall be deemed to prohibit you from challenging the validity of this release under such discrimination laws (the “ Discrimination Laws”) or from filing a charge or complaint of age or other employment related discrimination with the Equal Employment Opportunity Commission (“EEOC”) or state equivalent, or from participating in any investigation or proceeding conducted by the EEOC or state equivalent. Further, nothing in this release or Agreement shall be deemed to limit the Company’s right to seek immediate dismissal of such charge or complaint on the basis that your signing of this Agreement constitutes a full release of any individual rights under the Discrimination Laws, or to seek restitution to the extent permitted by law of the economic benefits provided to you under this Agreement in the event that you successfully challenge the validity of this release and prevail in any claim under the Discrimination Laws. By: Xxxx XxXxxxxx Date signed: Exhibit B Compromise Agreement COMPROMISE AGREEMENT THIS COMPROMISE AGREEMENT (the “Agreement”) is made as of [•] by and between Cyclacel Pharmaceuticals, Inc. (the “Employer”) and Xxxx XxXxxxxx (the “Executive”).

Your Release of Claims. You By signing this Agreement, you hereby agree and acknowledge that, by signing this Agreement and accepting the Severance Pay, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company12/ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Age Discrimination in Employment Act, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Equal Pay Act, the Americans With Disabilities Act and any similar Federal and state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of employment. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. 11/ For purposes of this Agreement, the Company includes Sera Prognostics, Inc. the Company and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns.. ** Any other Claim arising under state or federal law. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Agreement. You further acknowledge that this release does not waive any claims you cannot by law waive and does not release any claims that arise after its execution. It is the Company’s desire and intent to make certain that you fully understand the provisions and effects of this Agreement. To that end, you have been advised and given the opportunity to consult with legal counsel for the purpose of reviewing the terms of this Agreement. Also, because you are over the age of 40, the Age Discrimination in Employment Act (“ADEA”), which prohibits discrimination on the basis of age, allows you at least twenty-one (21) days to consider the terms of this Agreement. ADEA also allows you to rescind your assent to this Agreement if, within seven (7) days after you sign this Agreement, you deliver by hand or send by mail (certified, return receipt and postmarked within such 7 day period) a notice of rescission to the Company. The eighth day following your signing of this Agreement is the Effective Date. Also, consistent with the provisions of Federal law, nothing in this release shall be deemed to prohibit you from challenging the validity of this release under the discrimination laws (the “Federal Discrimination Laws”) or from filing a charge or complaint of employment-related discrimination with the Equal Employment Opportunity Commission (“EEOC”) or any state fair employment practices agency, or from participating in any investigation or proceeding conducted by the EEOC or any state fair employment practices agency. Further, nothing in this release or Agreement shall be deemed to limit the Company’s right to seek immediate dismissal of such charge or complaint on the basis that your signing of this Agreement constitutes a full release of any individual rights under the Federal Discrimination Laws, or to seek restitution to the extent permitted by law of the economic benefits provided to you under this Agreement in the event that you successfully challenge the validity of this release and prevail in any claim under the Federal Discrimination Laws. By: /s/ Xxxxxx Xxxxx Executive: Xxxxxx Xxxxx Date signed: January 6, 2016

Your Release of Claims. You By signing this Agreement, you hereby agree and acknowledge that, by signing this Agreement and accepting the Severance Pay, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company1/ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ attorneys fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 For purposes Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Age Discrimination in Employment Act, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Equal Pay Act, the Americans With Disabilities Act and any similar Federal and state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of employment. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. ** Any other Claim arising under state or federal law. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Agreement. You further acknowledge that this release does not waive any claims you cannot by law waive and does not release any claims that arise after its execution. It is the Company’s desire and intent to make certain that you fully understand the provisions and effects of this Agreement. To that end, you have been advised and given the opportunity to consult with legal counsel for the purpose of reviewing the terms of this Agreement. Also, because you are over the age of 40, the Company includes Sera PrognosticsAge Discrimination in Employment Act (“ADEA”), Inc. which prohibits discrimination on the basis of age, allows you at least twenty-one (21) days to consider the terms of this Agreement. ADEA also allows you to rescind your assent to this Agreement if, within seven (7) days after you sign this Agreement, you deliver by hand or send by mail (certified, return receipt and any postmarked within such 7 day period) a notice of its divisionsrescission to the Company. The eighth day following your signing of this Agreement is the Effective Date. Also, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control consistent with the provisions of Federal law, nothing in this release shall be deemed to prohibit you from challenging the validity of this release under the discrimination laws (the “Federal Discrimination Laws”) or from filing a charge or complaint of employment-related discrimination with the Equal Employment Opportunity Commission (“EEOC”) or any state fair employment practices agency, or from participating in any investigation or proceeding conducted by the EEOC or any state fair employment practices agency. Further, nothing in this release or Agreement shall be deemed to limit the Company)’s right to seek immediate dismissal of such charge or complaint on the basis that your signing of this Agreement constitutes a full release of any individual rights under the Federal Discrimination Laws, parents, subsidiaries or to seek restitution to the extent permitted by law of the economic benefits provided to you under this Agreement in the event that you successfully challenge the validity of this release and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns.prevail in any claim under the Federal Discrimination Laws. By:__________________________ Employee Date signed: _____________

Your Release of Claims. You By signing this Agreement, you hereby agree and acknowledge that, by signing this Agreement and accepting the Severance Pay, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company1/ For purposes of this Agreement, the Company includes the Company and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), subsidiaries and all other related entities, and its and their directors, officers, employees, trustees, agents, successors and assigns./ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ attorney’s fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Age Discrimination in Employment Act, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Equal Pay Act, the Americans With Disabilities Act and any similar Federal and state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of employment. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. ** Any other Claim arising under state or federal law. ___________________________________ 1/ For purposes of this Agreement, the Company includes Sera Prognostics, Inc. the Company and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns.. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Agreement. You further acknowledge that this release does not waive any claims you cannot by law waive and does not release any claims that arise after its execution. It is the Company’s desire and intent to make certain that you fully understand the provisions and effects of this Agreement. To that end, you have been advised and given the opportunity to consult with legal counsel for the purpose of reviewing the terms of this Agreement. Also, because you are over the age of 40, the Age Discrimination in Employment Act (“ADEA”), which prohibits discrimination on the basis of age, allows you at least twenty-one (21) days to consider the terms of this Agreement. ADEA also allows you to rescind your assent to this Agreement if, within seven (7) days after you sign this Agreement, you deliver by hand or send by mail (certified, return receipt and postmarked within such 7 day period) a notice of rescission to the Company. The eighth day following your signing of this Agreement is the Effective Date. Also, consistent with the provisions of Federal law, nothing in this release shall be deemed to prohibit you from challenging the validity of this release under the discrimination laws (the “Federal Discrimination Laws”) or from filing a charge or complaint of employment-related discrimination with the Equal Employment Opportunity Commission (“EEOC”) or any state fair employment practices agency, or from participating in any investigation or proceeding conducted by the EEOC or any state fair employment practices agency. Further, nothing in this release or Agreement shall be deemed to limit the Company’s right to seek immediate dismissal of such charge or complaint on the basis that your signing of this Agreement constitutes a full release of any individual rights under the Federal Discrimination Laws, or to seek restitution to the extent permitted by law of the economic benefits provided to you under this Agreement in the event that you successfully challenge the validity of this release and prevail in any claim under the Federal Discrimination Laws. By:__________________________ Employee Date signed: _____________

Your Release of Claims. You hereby agree and acknowledge that, that by signing this Agreement and accepting the Severance Separation Pay, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “"Execution Date”"). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, charge, complaint or any other form of action (jointly referred to as “"Claims”") against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ attorneys fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Federal Age Discrimination in Employment Act, the Civil Rights Acts of 1866 and 1871, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Equal Pay Act, the Americans With Disabilities Act and any similar Connecticut or other state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of employment. Without limitation, specifically included in this paragraph are any Claims arising under the Fair Labor Standards Act, the Family and Medical Leave Act of 1993, the Employee Retirement Income Security Act of 1974, the Consolidated Omnibus Budget Reconciliation Act of 1985 ("COBRA") and any similar state statute. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. ** Any other Claim arising under state or federal law. Notwithstanding the foregoing, this section does not release the Company from any obligation expressly set forth in this Agreement. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Agreement. The Company hereby releases you from your obligations under the Employment Agreement. It is the Company's desire and intent to make certain that you fully understand the provisions and effects of this Agreement. To that end, you have been encouraged and given the opportunity to consult with legal counsel for the purpose of reviewing the terms of this Agreement. Also, because you are over the age of 40, and consistent with the provisions of the Age Discrimination in Employment Act ("ADEA"), which prohibits discrimination on the basis of age, the Company is providing you with twenty-one (21) days in which to consider and accept the terms of this Agreement 1 For purposes of this Agreement, the Company includes Sera Prognostics, Inc. the Company and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns. by signing below and returning it to Xxxx Xxxxxx at the Company. In addition, you may rescind your assent to this Agreement if, within seven (7) days after you sign this Agreement, you deliver by hand or send by mail (certified, return receipt and postmarked within such 7 day period) a notice of rescission to Xxxx Xxxxxx at the Company. The eighth day following your signing of this Agreement is the Effective Date. Also, consistent with the provisions of the Federal Discrimination Laws, nothing in this release shall be deemed to prohibit you from challenging the validity of this release under the federal age or other discrimination laws (the "Federal Discrimination Laws") or from filing a charge or complaint of employment-related discrimination with the Equal Employment Opportunity Commission ("EEOC"), or from participating in any investigation or proceeding conducted by the EEOC. Further, nothing in this release or Agreement shall be deemed to limit the Company's right to seek immediate dismissal of such charge or complaint on the basis that your signing of this Agreement constitutes a full release of any individual rights under the Federal Discrimination Laws, or to seek restitution to the extent permitted by law of the economic benefits provided to you under this Agreement in the event that you successfully challenge the validity of this release and prevail in any claim under the Federal Discrimination Laws.

Your Release of Claims. You By signing this Agreement, you hereby agree and acknowledge that, by signing this Agreement and accepting the Severance Pay, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company12/ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Age Discrimination in Employment Act, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Equal Pay Act, the Americans With Disabilities Act and any similar Federal and state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of employment. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. 11/ For purposes of this Agreement, the Company includes Sera Prognostics, Inc. the Company and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns.. ** Any other Claim arising under state or federal law. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Agreement. You further acknowledge that this release does not waive any claims you cannot by law waive and does not release any claims that arise after its execution. It is the Company’s desire and intent to make certain that you fully understand the provisions and effects of this Agreement. To that end, you have been advised and given the opportunity to consult with legal counsel for the purpose of reviewing the terms of this Agreement. Also, because you are over the age of 40, the Age Discrimination in Employment Act (“ADEA”), which prohibits discrimination on the basis of age, allows you at least twenty-one (21) days to consider the terms of this Agreement. ADEA also allows you to rescind your assent to this Agreement if, within seven (7) days after you sign this Agreement, you deliver by hand or send by mail (certified, return receipt and postmarked within such 7 day period) a notice of rescission to the Company. The eighth day following your signing of this Agreement is the Effective Date. Also, consistent with the provisions of Federal law, nothing in this release shall be deemed to prohibit you from challenging the validity of this release under the discrimination laws (the “Federal Discrimination Laws”) or from filing a charge or complaint of employment-related discrimination with the Equal Employment Opportunity Commission (“EEOC”) or any state fair employment practices agency, or from participating in any investigation or proceeding conducted by the EEOC or any state fair employment practices agency. Further, nothing in this release or Agreement shall be deemed to limit the Company’s right to seek immediate dismissal of such charge or complaint on the basis that your signing of this Agreement constitutes a full release of any individual rights under the Federal Discrimination Laws, or to seek restitution to the extent permitted by law of the economic benefits provided to you under this Agreement in the event that you successfully challenge the validity of this release and prevail in any claim under the Federal Discrimination Laws. By: /s/ Xxxxxx Xxxxxxxxx Executive: Date signed: December 15, 2015

Your Release of Claims. You hereby agree and acknowledge that, that by signing this Agreement and accepting the Severance PayAgreement, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company1/ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Age Discrimination in Employment Act, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Americans With Disabilities Act and any similar Federal and state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of employment. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. 1/ For purposes of this Agreement, the Company includes Sera Prognostics, Inc. the Company and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns.. ** Any other Claim arising under state or federal law. Notwithstanding the foregoing, nothing contained in this Release constitutes a waiver of any Claims you may have against the Company arising from or related to the Indemnification Agreement and By-laws provisions referenced in Section 8 of the Employment Agreement, dated January 1, 2014, entered into between you and the Company. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Agreement. It is the Company’s desire and intent to make certain that you fully understand the provisions and effects of this Agreement. To that end, you have been encouraged and given the opportunity to consult with legal counsel for the purpose of reviewing the terms of this Agreement. Also, because you are over the age of 40 and consistent with the provisions of the Age Discrimination in Employment Act (“ADEA”), which prohibits discrimination on the basis of age, the Company is providing you with twenty-one (21) days in which to consider and accept the terms of this Agreement by signing below and returning it to me at: [name], [address]. You may rescind your assent to this Agreement if, within seven (7) days after you sign this Agreement, you deliver by hand or send by mail (certified, return receipt and postmarked within such 7 day period) a notice of rescission to me at the Company. The eighth day following your signing of this Agreement is the Effective Date. Also, nothing in this Agreement: (i) prohibits or restricts you from filing a charge or complaint against the Company with any federal, state or local government authority, including a charge of unlawful discrimination with the Equal Employment Opportunity Commission or a state or local government authority responsible for enforcing laws prohibiting discriminatory employment practices; (ii) prohibits or restricts you from communicating with, providing relevant information to or otherwise cooperating with any government authority, including the EEOC or a state or local government authority responsible for enforcing laws prohibiting discriminatory employment practices, including without limitation, responding to any inquiry from such government authority, including an inquiry about the existence of this Agreement or its underlying facts; or (iii) requires you to notify the Company of your communications with or inquiries from any government authority. To the maximum extent permitted by law, however, you are not entitled to recover any legal or equitable remedies, including reinstatement or monetary damages, in the case of any administrative claim that he files or in which he participates, except as set forth herein and except that he retains the right to receive an award for actionable information he provides to a government authority. By: Xxxxx Xxxxxxxx Date signed:

Your Release of Claims. You hereby agree and acknowledge that, by signing this Agreement and accepting the Severance Pay, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as otherwise set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 For purposes of in this Agreement, in exchange for the consideration under this Agreement to which you would not otherwise be entitled, you hereby generally and completely release the Company includes Sera Prognostics, Inc. and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries subsidiaries, successors, predecessors and all other related entitiesaffiliates, and its and their former and current directors, officers, employees, trustees, agents, successors attorneys, insurers, affiliates and assigns., from any and all claims, liabilities and obligations, both known and unknown, that arise out of or are in any way related to events, acts, conduct, or omissions occurring at any time prior to and including the date you sign this Agreement. This general release includes, but is not limited to: (a) all claims arising out of or in any way related to your employment with the Company or the termination of that employment; (b) all claims related to your compensation or benefits, including salary, bonuses, commissions, vacation pay, expense reimbursements, severance pay, fringe benefits, stock, stock options, or any other equity interests in the Company; (c) all claims for breach of contract, wrongful termination, and breach of the implied covenant of good faith and fair dealing; (d) all tort claims, including claims for fraud, defamation, emotional distress, and discharge in violation of public policy; and (e) all federal, state, and local statutory claims, including claims for discrimination, harassment, retaliation, attorneys' fees, or other claims arising under the federal Civil Rights Act of 1964 (as amended), the federal Americans with Disabilities Act of 1990 (as amended), the California Labor Code, and the California Fair Employment and Housing Act (as amended). Notwithstanding the foregoing, you shall not release the Company hereby from any obligation to indemnify you pursuant to the articles and bylaws of the Company or applicable law. You represent that you have no lawsuits, claims or actions pending in your name, or on behalf of any other person or entity, against the Company or any other person or entity subject to the release granted in this paragraph. Notwithstanding the generality of the foregoing, you do not release the following claims:

Your Release of Claims. You hereby agree and acknowledge that, that by signing this Agreement and accepting the Severance PaySeparation Pay and Benefits discussed in Section 2, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company(2) of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “"Execution Date”"). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, charge, complaint or any other form of action (jointly referred to as “"Claims”") against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ ' fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 For purposes Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any local, state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the federal Age Discrimination in Employment Act, the Older Workers Benefit Protection Act, the Civil Rights Acts of 1866 and 1871, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Equal Pay Act, the Americans With Disabilities Act, the Worker Adjustment and Retraining Notification Act, MASS. GEN. L. c. 151B (the Commonwealth's anti-discrimination statute), and any similar Massachusetts or other state statute or federal statute. ** Claims under any other local, state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of employment. Without limitation, specifically included in this paragraph are any Claims arising under the Fair Labor Standards Act, the Family and Medical Leave Act of 1993, the National Labor Relations Act, the Employee Retirement Income Security Act of 1974, the Consolidated Omnibus Budget Reconciliation Act of 1985 ("COBRA"), and any similar Massachusetts or other state statute or federal statute. ** Claims under any local, state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. ** Claims under any local, state or federal securities law, including, without limitation, the Securities Act of 1933, as amended, the Securities Exchange Act of 1934, as amended, and any other state or local securities statutes and regulations; and ** Any other claim arising under local, state, or federal law, or the laws of any country or governmental entity other than the United States. Notwithstanding the foregoing, this Section does not release the Company from any obligation expressly set forth in this Agreement. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the separation pay and benefits being provided to you under the terms of this Agreement. BECAUSE YOU ARE MORE THAN FORTY (40) YEARS OF AGE, the Company includes Sera PrognosticsYOU HAVE SPECIFIC RIGHTS UNDER THE OLDER WORKERS BENEFITS PROTECTION ACT ("OWBPA"), Inc. and any of its divisionsWHICH PROHIBITS DISCRIMINATION ON THE BASIS OF AGE, affiliates AND THAT THE RELEASES SET FORTH IN THIS SECTION 6 ARE INTENDED TO RELEASE ANY RIGHT THAT YOU MAY HAVE TO FILE A CLAIM AGAINST THE COMPANY ALLEGING DISCRIMINATION ON THE BASIS OF AGE. IT IS THE COMPANY'S DESIRE AND INTENT TO MAKE CERTAIN THAT YOU FULLY UNDERSTAND THE PROVISIONS AND EFFECTS OF THIS AGREEMENT. TO THAT END, YOU HAVE BEEN ENCOURAGED AND GIVEN THE OPPORTUNITY TO CONSULT WITH LEGAL COUNSEL FOR THE PURPOSE OF REVIEWING THE TERMS OF THIS AGREEMENT. THE COMPANY ALSO IS PROVIDING YOU WITH TWENTY-ONE (which means all persons and entities directly or indirectly controlling21) DAYS FROM THE COMPANY'S FIRST OFFER OF SEVERANCE IN WHICH TO CONSIDER AND ACCEPT THE TERMS OF THIS AGREEMENT BY SIGNING BELOW AND RETURNING IT TO XX. XXXXXXX XXXXXXXX AT PREDIX PHARMACEUTICALS, controlled by or under common control 00X XXXX XX, WOBURN, MA, 01801. YOU AGREE THAT THE MATERIAL CHANGES REFLECTED IN THIS AGREEMENT DO NOT RESTART THE 21-DAY CONSIDERATION PERIOD. IN ADDITION, YOU MAY RESCIND YOUR ASSENT TO THIS AGREEMENT IF, WITHIN SEVEN (7) DAYS AFTER YOU SIGN THIS AGREEMENT (THE "RESCISSION PERIOD"), YOU DELIVER BY HAND OR SEND BY MAIL (CERTIFIED, RETURN RECEIPT AND POSTMARKED WITHIN SUCH SEVEN (7) DAY PERIOD) A NOTICE OF RESCISSION TO XX. XXXXXXX XXXXXXXXX AT THE ABOVE-REFERENCED ADDRESS. Also, consistent with the Companyprovisions of the ADEA and other federal discrimination laws, nothing in this release shall be deemed to prohibit you from challenging the validity of this release under the federal age or other discrimination laws (the "Federal Discrimination Laws") or from filing a charge or complaint of age or other employment related discrimination with the Equal Employment Opportunity Commission ("EEOC"), parentsor from participating in any investigation or proceeding conducted by the EEOC. Further, subsidiaries nothing in this release or Agreement shall be deemed to limit the Company's right to seek immediate dismissal of such charge or complaint on the basis that your signing of this Agreement constitutes a full release of any individual rights under the Federal Discrimination Laws, or to seek restitution to the extent permitted by law of the economic benefits provided to you under this Agreement in the event that you successfully challenge the validity of this release and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assignsprevail in any claim under the Federal Discrimination Laws.

Your Release of Claims. You hereby agree and acknowledge that, that by signing this Agreement and accepting the Severance PayAgreement, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company1/ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ attorneys fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 For purposes Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Age Discrimination in Employment Act, Title VII of this Agreementthe Civil Rights Act of 1964, the Company includes Sera PrognosticsCivil Rights Act of 1991, Inc. the Equal Pay Act, the Americans With Disabilities Act and any similar Federal and state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of its divisionsemployment. ** Claims under any state or federal common law theory including, affiliates (which means all persons without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and entities directly fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or indirectly controllingnegligent infliction of emotional distress, controlled by invasion of privacy, misrepresentation, deceit, fraud or negligence. ** Any other Claim arising under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assignsstate or federal law.

Your Release of Claims. You hereby agree and acknowledge that, that by signing this Agreement and accepting the Severance Separation Pay, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company¹/ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, charge, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 ¹/ For purposes of this Agreement, the Company includes Sera Prognostics, Inc. the Company and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns. damages, punitive damages, attorneys fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Federal Age Discrimination in Employment Act, the Civil Rights Acts of 1866 and 1871, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Equal Pay Act, the Americans With Disabilities Act, the California Fair Employment and Housing Act, the California Labor Code and any similar California or other state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of employment. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. ** Any other Claim arising under state or federal law. In addition to the forgoing, you hereby agree that you waive all rights under section 1542 of the Civil Code of the State of California. Section 1542 provides that: A general release does not extend to claims which the creditor does not know or suspect to exist in his favor at the time of executing the release, which if known by him must have materially affected his settlement with the debtor. Pursuant to section 1542, you acknowledge that you may hereafter discover facts different from or in addition to facts which you now know or believe to be true with regard to the released claims, and further agree that this Agreement shall remain effective in all respects not withstanding such discovery of new or different facts, including any such facts which may give rise to currently unknown claims, including but not limited to any claims or rights which you may have under section 1542 of the California Civil Code. Notwithstanding the foregoing, this section does not release the Company from any obligation expressly set forth in this Agreement. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Agreement. It is the Company’s desire and intent to make certain that you fully understand the provisions and effects of this Agreement. To that end, you have been encouraged and given the opportunity to consult with legal counsel for the purpose of reviewing the terms of this Agreement. Also, because you are over the age of 40, and consistent with the provisions of the Age Discrimination in Employment Act (“ADEA”), which prohibits discrimination on the basis of age, the Company is providing you with twenty-one (21) days in which to consider and accept the terms of this Agreement by signing below and returning it to Xxxx Xxxxxx at the Company. In addition, you may rescind your assent to this Agreement if, within seven (7) days after you sign this Agreement, you deliver by hand or send by mail (certified, return receipt and postmarked within such 7 day period) a notice of rescission to Xxxx Xxxxxx at the Company. The eighth day following your signing of this Agreement is the Effective Date. Also, consistent with the provisions of the Federal Discrimination Laws, nothing in this release shall be deemed to prohibit you from challenging the validity of this release under the federal age or other discrimination laws (the “Federal Discrimination Laws”) or from filing a charge or complaint of employment-related discrimination with the Equal Employment Opportunity Commission (“EEOC”), or from participating in any investigation or proceeding conducted by the EEOC. Further, nothing in this release or Agreement shall be deemed to limit the Company’s right to seek immediate dismissal of such charge or complaint on the basis that your signing of this Agreement constitutes a full release of any individual rights under the Federal Discrimination Laws, or to seek restitution to the extent permitted by law of the economic benefits provided to you under this Agreement in the event that you successfully challenge the validity of this release and prevail in any claim under the Federal Discrimination Laws.

Your Release of Claims. You hereby agree and acknowledge that, by By signing this Separation Agreement and accepting the Severance Paycompensation set forth in Section 3, you, on behalf of yourself, your heirs, executors, administrators, successors and assigns, waive, release and forever discharge the Company and all current and former subsidiaries, divisions, related or affiliated companies, and for other good all of their officers, directors, employees, agents, successors, predecessors and valuable considerationassigns, you are waiving your right including but not limited to assert any all management and supervisory employees (severally and collectively “Releasees”), jointly and individually, from all forms claims, complaints, demands, causes of legal claims against the Company1 action, obligations, liabilities and damages of any kind whatsoeverevery nature and description, whether known or unknown, foreseen or unforeseen, in law or equity, at common law or under any statute, rule, regulation, order or law, whether federal, state or local, on any grounds whatsoever arising from the beginning before your signing this Separation Agreement, including but not limited to any claim relating to or arising out of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against your employment by the Company or otherwise contacted the Company’s involuntary termination of your employment, any U.S. claim under the WARN Act, any claim under the Age Discrimination in Employment Act of 1967, as amended, any claim of discrimination on any basis under any federal, state or local governmental law, any claim of breach of any express or implied contract, any claim for promissory estoppel or detrimental reliance, and any claim for wrongful or constructive discharge. If any administrative agency or commission court assumes jurisdiction of any charge, complaint, proceeding or action covered by Section 4 of this Separation Agreement against any of the Releasees, you agree not to accept, recover or receive any monetary damages or other relief from or in connection with such charge, complaint, proceeding or action. You agree that has applicable if a court of competent jurisdiction determines that you are to regulate be awarded damages under WARN, those damages will be offset by the total compensation paid to you under Section 3(a) and 3(b) of this Separation Agreement. The Company (each a “Government Agency”) regarding the Company, except advises you to consult with your own attorney before agreeing to the extent release of claims set forth in this section. As set forth below in Section 12, you have twenty-one (i21) have already informed days from the date of your receipt of this letter to review this Separation Agreement and the release it contains. Nothing in this section impairs your right to vested Company benefits to which you are entitled as of the date you sign this Separation Agreement. Nothing in writing prior this section impairs any right you hold that cannot be waived or released as a matter of law. By way of example, nothing in this section impairs your right to the Execution Datefile a charge or complaint with any appropriate federal, state, or (ii) are permitted by law local agency, such as the United States Equal Employment Opportunity Commission, or to opt against participate in or cooperate with any such disclosure; and furthercharge or complaint procedure. After signing this Separation Agreement, you are not aware of any unlawful conduct in relation retain the right to challenge the business validity of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 For purposes of this Agreement, the Company includes Sera Prognostics, Inc. and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns.Separation

Your Release of Claims. You hereby agree and acknowledge that, that by signing this Agreement and accepting the Severance PayAgreement, and for other good and valuable consideration, you are waiving your right to assert any and all forms of legal claims against the Company1 Company1/ of any kind whatsoever, whether known or unknown, arising from the beginning of time through the date you execute this Agreement (the “Execution Date”). You acknowledge that as of Execution Date, you have not filed any complaints, claims, charges, actions, grievances or arbitrations against the Company or otherwise contacted any U.S. federal, state or local governmental agency or commission that has applicable jurisdiction to regulate the Company (each a “Government Agency”) regarding the Company, except to the extent you (i) have already informed the Company in writing prior to the Execution Date, or (ii) are permitted by law to opt against such disclosure; and further, you are not aware of any unlawful conduct in relation to the business of the Company, except to the extent you have already informed the Company in writing prior to the Execution Date. Except as set forth below, your waiver and release herein is intended to bar any form of legal claim, complaint or any other form of action (jointly referred to as “Claims”) against the Company seeking any form of relief including, without limitation, equitable relief (whether declaratory, injunctive or otherwise), the recovery of any damages, or any other form of monetary recovery whatsoever (including, without limitation, back pay, front pay, compensatory damages, emotional distress damages, punitive damages, attorneys’ attorneys fees and any other costs) against the Company, for any alleged action, inaction or circumstance existing or arising through the Execution Date. 1 Without limiting the foregoing general waiver and release, you specifically waive and release the Company from any Claim arising from or related to your prior employment relationship with the Company or the termination thereof, including, without limitation: ** Claims under any state or federal discrimination, fair employment practices or other employment related statute, regulation or executive order (as they may have been amended through the Execution Date) prohibiting discrimination or harassment based upon any protected status including, without limitation, race, national origin, age, gender, marital status, disability, veteran status or sexual orientation. Without limitation, specifically included in this paragraph are any Claims arising under the Age Discrimination in Employment Act, Title VII of the Civil Rights Act of 1964, the Civil Rights Act of 1991, the Americans With Disabilities Act and any similar Federal and state statute. ** Claims under any other state or federal employment related statute, regulation or executive order (as they may have been amended through the Execution Date) relating to wages, hours or any other terms and conditions of employment. ** Claims under any state or federal common law theory including, without limitation, wrongful discharge, breach of express or implied contract, promissory estoppel, unjust enrichment, breach of a covenant of good faith and fair dealing, violation of public policy, defamation, interference with contractual relations, intentional or negligent infliction of emotional distress, invasion of privacy, misrepresentation, deceit, fraud or negligence. 1/ For purposes of this Agreement, the Company includes Sera Prognostics, Inc. the Company and any of its divisions, affiliates (which means all persons and entities directly or indirectly controlling, controlled by or under common control with the Company), parents, subsidiaries and all other related entities, and its and their former and current directors, officers, employees, trustees, agents, successors and assigns. ** Any other Claim arising under state or federal law. Notwithstanding the foregoing, nothing contained in this Release constitutes a waiver of any Claims you may have against the Company arising from or related to the Indemnification Agreement and By-laws provisions referenced in Section 8 of the Employment Agreement, dated January 1, 2014, entered into between you and the Company. You acknowledge and agree that, but for providing this waiver and release, you would not be receiving the economic benefits being provided to you under the terms of this Agreement. It is the Company’s desire and intent to make certain that you fully understand the provisions and effects of this Agreement. To that end, you have been encouraged and given the opportunity to consult with legal counsel for the purpose of reviewing the terms of this Agreement. Also, because you are over the age of 40 and consistent with the provisions of the Age Discrimination in Employment Act (“ADEA”), which prohibits discrimination on the basis of age, the Company is providing you with twenty-one (21) days in which to consider and accept the terms of this Agreement by signing below and returning it to me at: [name], [address]. You may rescind your assent to this Agreement if, within seven (7) days after you sign this Agreement, you deliver by hand or send by mail (certified, return receipt and postmarked within such 7 day period) a notice of rescission to me at the Company. The eighth day following your signing of this Agreement is the Effective Date. Also, nothing in this Agreement: (i) prohibits or restricts you from filing a charge or complaint against the Company with any federal, state or local government authority, including a charge of unlawful discrimination with the Equal Employment Opportunity Commission or a state or local government authority responsible for enforcing laws prohibiting discriminatory employment practices; (ii) prohibits or restricts you from communicating with, providing relevant information to or otherwise cooperating with any government authority, including the EEOC or a state or local government authority responsible for enforcing laws prohibiting discriminatory employment practices, including without limitation, responding to any inquiry from such government authority, including an inquiry about the existence of this Agreement or its underlying facts; or (iii) requires you to notify the Company of your communications with or inquiries from any government authority. To the maximum extent permitted by law, however, you are not entitled to recover any legal or equitable remedies, including reinstatement or monetary damages, in the case of any administrative claim that he files or in which he participates, except as set forth herein and except that he retains the right to receive an award for actionable information he provides to a government authority. . By: Xxxx XxXxxxxx Date signed: Exhibit B Compromise Agreement THIS COMPROMISE AGREEMENT (the “Agreement”) is made as of [•] by and between Cyclacel Pharmaceuticals, Inc. (the “Employer”) and Xxxx XxXxxxxx (the “Executive”).