EMPLOYMENT AGREEMENT

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EXHIBIT 10.24

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN OMITTED BECAUSE IT IS NOT MATERIAL

EMPLOYMENT AGREEMENT

THIS EMPLOYMENT AGREEMENT (this “Agreement”) is entered into effective as of September 10, 2019, by and between Passage BIO, Inc. (the “Company”), and Xxxxx Xxxx (the “Employee”) (collectively, the “Parties”). This Agreement amends, restates and supersedes any written or unwritten agreement or understanding between the Parties regarding the subject matter hereof.

The Company and the Employee agree as follows:

1.Definitions. The following terms used in this Agreement shall, unless otherwise clearly required by the context, have the meanings assigned to them in this Section 1.

“Annual Salary” means the annual salary payable to the Employee, initially in the amount of $360,000, less applicable deductions, and as may be changed from time to time.

“Board” means the Board of Directors of the Company.

“Cause” means a good faith determination by the Board, that any of the following has occurred: (i) the Employee’s commission of, conviction of, or plea of nolo contendere to, a felony or an act constituting common law fraud, which has or is reasonably expected to have a material adverse effect on the business or affairs of the Company; (ii) the Employee’s willful and repeated failure to perform in any material respect the Employee’s duties for the Company; (iii) the Employee’s intentional breach of the Company confidential information obligations, invention assignment agreement, or any written Company policy that has been communicated to the Employee in advance of the Employee’s breach, (iv) the Employee’s intentional and material breach of this Agreement; provided, however, that prior to any determination that “Cause” under this Agreement has occurred, the Board shall (A) provide to the Employee written notice specifying the particular event or actions giving rise to such determination and (B) solely in the event of a breach of subsection (ii) above, provide the Employee an opportunity to be heard within 30 days of such notice and provide the Employee with 30 days from the date the Employee is heard to cure such event or actions giving rise to a determination of “Cause” under such subsection, if curable.

“Change of Control” means (i) a sale, conveyance, exchange or transfer (excluding any venture-backed or similar investments in the Company) in which any person or entity (other than persons or entities who as of immediately prior to such sale, conveyance, exchange or transfer own more than fifty percent (50%) of the total voting power of the then-outstanding securities in the Company) either directly or indirectly becomes the beneficial owner, directly or indirectly, of securities of the Company representing more than fifty (50%) percent of the total voting power of all its then outstanding voting securities; (ii) a merger or consolidation of the Company in which its voting securities immediately prior to the merger or consolidation do not represent, or are not converted into securities that represent, a majority of the voting power of all voting securities of the surviving entity immediately after the merger or consolidation; (iii) a sale of substantially all of the assets of the Company or a liquidation or dissolution of the Company, provided that, in each cases (i)-(iii) of this definition, a transaction or series of transactions shall only constitute a Change

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EXHIBIT 10.24

of Control if it also satisfies the requirements of a change in control under U.S. Treasury Regulation 1.409A-3(i)(5)(v), 1.409A-3(i)(5)(vi), or 1.409A-3(i)(5)(vii).

“Code” means the Internal Revenue Code of 1986, as amended.

“Vesting Commencement Date” means the date used to measure the beginning of

the vesting period for the Equity Award, as specified in Section 3.3(b).

“Conflict of Interest” has the meaning set forth in Section 4.3.

“Date of Termination” means the date that is the Employee’s last day of

employment at the Company.

“Employment Start Date” means the first day of the Employee’s employment with

the Company, which is expected to be September 23, 2019.

“Good Reason” means any of the following taken without the Employee’s written consent and provided (a) the Company receives, within ninety (90) days following the initial date on which the Employee knows of the occurrence of any of the events set forth in clauses (i) through

(iv) below, written notice from the Employee specifying the specific basis for the Employee’s belief that the Employee is entitled to terminate employment for Good Reason, (b) the Company fails to cure the event constituting Good Reason within thirty (30) days after receipt of such written notice thereof, and (c) the Employee terminates employment within thirty (30) days following expiration of such cure period: (i) a material reduction of the Employee’s responsibilities, authority or duties to a level materially less than the responsibilities, authorities or duties the Employee occupied or possessed, on the date immediately preceding such reduction; (ii) a material reduction in the Employee’s Annual Salary; (iii) the Company’s requiring the Employee’s to be based at any office or location more than thirty (30) miles from 0 Xxxxxxxx Xxxxxx, Xxxxxxxxxxxx, Xxxxxxxxxxxx; or (iv) the Company’s material breach of any provision of this Agreement.

“Omnibus Plan” means the Company’s shareholder approved incentive plan or plans, which may include long-term equity-based compensation plans, short-term performance- based compensation plans and any other similar plans, as such may be in effect from time to time.

2.Title and Duties. The Employee shall serve as General Counsel of the Company. The Employee will have duties and responsibilities that are customary for the Employee’s position, and shall initially report to the Chief Executive Officer (“CEO”) of the Company. The Employee will devote all reasonable efforts and all of the Employee’s business time to the Company.

Compensation and Benefits.

3.1Annual Salary. The Annual Salary will be payable in accordance with the payroll policies of the Company in effect from time to time, less any deductions required to be withheld by applicable law and less any voluntary deductions made by the Employee.

3.2Incentive Compensation. The Employee shall be eligible to receive an annual performance bonus, with a target amount equal to 35% of the Annual Salary, based upon

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EXHIBIT 10.24

the achievement of performance objectives established by the Board or CEO and subject to the terms of the applicable bonus plan(s). Bonus payouts, if any, will be paid no later than March 15 of the year following the calendar year to which the bonus is applicable, and will be pro-rated based, as applicable, on hire date and/or on approved leaves of absence.

3.3Equity-Based Compensation: The Employee shall receive a stock option (the “Equity Award”) to purchase 810,543 shares of common stock of the Company at a strike price no less than the fair market value per share as determined by the Board. The Equity Award shall have the following features:

(a)The Employee shall have the right to exercise the Equity Award early, subject to entering into a restricted stock agreement as directed by the Company; provided, however, that the stock acquired by exercise of the Equity Award that is not vested shall be subject to the same vesting schedule that applied to the Equity Award, so that on termination of employment, any stock that has not become vested may be repurchased, at the Company’s discretion, on payment of the lesser of (A) the amount paid by the Employee for such stock, or (B) the then fair market value of such stock.

(b)The Equity Award shall become vested as to 25% on the one-year anniversary of the Vesting Commencement Date, and shall thereafter become vested in 36 equal monthly installments (so as to be fully vested on the fourth anniversary of the Vesting Commencement Date), subject to the Employee’s continuous service as required by the Equity Award and restricted stock agreement. The Vesting Commencement Date for the Equity Award will be the Employment Start Date.

3.4Participation in Employee Benefit Plans. The Employee may participate in any group life, hospitalization or disability insurance plan, health program, retirement plan, similar benefit plan or other so called “fringe benefits” of the Company for which the Employee is eligible. The Employee’s participation in any such plans shall be on the terms and conditions set forth in the governing plan documents as they may be in effect from time to time.

3.5General Business Expenses. The Company shall pay or reimburse the Employee for all business expenses reasonably and necessarily incurred by the Employee in the performance of the Employee’s duties under this Agreement, consistent with the Company’s business expense reimbursement policy, as in effect from time to time.

3.6Company Policies. The Employee understands and agrees to abide by Company’s xxxxxxx xxxxxxx policy, code of conduct, and any other policies and programs adopted by the Company regulating the behavior of its employees, as such policies and programs may be amended from time to time.

Protection of Company Trade Secrets and Proprietary Information.

4.1EIACNA. As an employee of the Company, the Employee will have access to certain confidential information of the Company and the Employee may, during the course of the Employee’s employment, develop certain information or inventions that will be the property of the Company. To protect the Company’s interests, as a condition of employment, the Employee

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EXHIBIT 10.24

must sign and abide by the Company’s standard Employee Invention Assignment, Confidentiality, and Non-Competition Agreement (the “EIACNA”).

4.2No Breach of Obligations to Prior Employers. The Company hereby directs the Employee not to bring with the Employee any confidential or proprietary material of any former employer or to violate any other obligations the Employee may have to any former employer. The Employee represents that by signing of this Agreement and the Company’s EIACNA and the Employee’s commencement of employment with the Company will not violate any agreement currently in place between the Employee and current or past employers.

4.3Conflicts of Interest. The Employee agrees that during the Employee’s employment with the Company the Employee will not engage, either directly or indirectly, in any activity which might adversely affect the Company or its affiliates (a “Conflict of Interest”), including ownership of a material interest in any supplier, contractor, distributor, subcontractor, customer or other entity with which the Company does business or acceptance of any material payment, service, loan, gift, trip, entertainment, or other favor from a supplier, contractor, distributor, subcontractor, customer or other entity with which the Company does business, and that the Employee will promptly inform the Board as to each offer received by the Employee to engage in any such activity. The Employee further agrees to disclose to the Company any other facts of which the Employee becomes aware which might in the Employee’s good faith judgment reasonably be expected to involve or give rise to a Conflict of Interest or potential Conflict of Interest.

Termination.

5.1Accrued Payments. In general, on termination of the Employee’s employment for any reason, the following amounts will be paid to the Employee, or the Employee’s estate, as the case may be:

(a)All accrued but unpaid Annual Salary, payable in the next regularly scheduled pay period following the Employee’s Date of Termination or such earlier date as may be required by law;

(b)Accrued but unused vacation time, to the extent payment is either required by law or provided for in the Company’s vacation or paid-time-off policy, as such may be in effect from time to time;

(c)Any amounts payable to the Employee under the terms of any employee benefit plans in which the Employee was a participant;

(d)Reimbursement of any of the Employee’s business expenses not previously reimbursed, to the extent provided for under the Company’s business expense reimbursement policy; and

(e)Payment of any amounts that are determined to be due under the terms of the Omnibus Plan, or any grants or awards made thereunder.

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EXHIBIT 10.24

5.2Termination for Cause. The Company has the right, at any time during the Employee’s employment, subject to all of the provisions hereof, exercisable by serving notice, effective on or after the date of service of such notice as specified therein, to terminate the Employee’s employment under this Agreement and discharge the Employee for Cause. A termination of employment will be effective on the date set forth in such notice of termination.

5.3Termination without Cause. The Company has the right, at any time during the Employee’s employment, to terminate the Employee’s employment without Cause by providing the Employee with notice.

5.4Termination without Cause or Resignation for Good Reason. In the event the Company terminates the Employee’s employment without Cause or the Employee resigns from employment with the Company for Good Reason, then subject to the Employee’s satisfaction of the Severance Conditions (defined below), the Employee will be entitled to the following separation benefits:

(a)Severance. Should the termination occur during the first twelve (12) months of employment, the Employee will be entitled to a lump sum payment equal to the Employee’s Annual Salary for an additional nine (9) months after the Date of Termination (the “Severance”). Should the termination occur after the first twelve (12) months of employment, the lump sum Severance payment will be increased from nine (9) months of Annual Salary to twelve

(12) months of Annual Salary.

(b)COBRA. Consistent with the terms of COBRA and the Company’s health insurance plan, the Company shall provide the Employee a taxable lump sum payment equal to 12 months of the monthly COBRA premium the Employee would be required to pay to continue the group health coverage in effect on the Date of Termination (which monthly amount shall be based on the premium for the first month of COBRA coverage), which payment shall be made regardless of whether the Employee elects COBRA continuation coverage (the “COBRA Payment”).

(c)the Employee will be entitled to receive the Severance and the COBRA Payments referenced in Section 5.4 and on the terms of Section 5.4 within thirty (30) calendar days of the Date of Termination provided the Employee has satisfied the following “Severance Conditions”: (1) the Employee has resigned from all officer and director positions the Employee may have held with the Company, if requested by the Company; (2) the Employee has returned all material Company property in the Employee’s possession; (3) the Employee has materially complied with the Employee’s obligations under the EIACNA and continues to materially comply with such obligations; and (4) the Employee has executed a general release of all known and unknown claims that the Employee may have against the Company or persons affiliated with the Company on the Company’s standard form approved by the Company (the “Release”) and the Release becomes effective and irrevocable.

5.5Termination without Cause or Resignation for Good Reason within 2 months prior to or 12 months following a Change of Control. In the event the Company terminates the Employee’s employment without Cause or the Employee resigns from employment with the

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EXHIBIT 10.24

Company for Good Reason, in each case within two (2) months prior to or twelve (12) months following a Change of Control, then subject to the Employee’s satisfaction of the Severance Conditions (defined above), the Employee will be entitled to the Severance and the COBRA Payments referenced in Section 5.4, and 100% of the then unvested portion of the Equity Awards will be accelerated and become vested.

Tax Matters.

6.1Withholding, Taxes, Deductions. All forms of compensation referred to in this Agreement are subject to reduction to reflect applicable withholding and payroll taxes and other deductions required by law as referenced in this Agreement.

6.2Code Section 409A. The following provisions shall apply in connection with compliance with Code Section 409A:

(a)The intent of the Parties is that payments and benefits under the Agreement that are not exempt from Section 409A of the Code shall be in compliance with Code Section 409A (and regulations and guidance promulgated by the IRS and/or Treasury related to Code Section 409A) (together “Code Section 409A”) to the maximum extent permitted, and the Agreement shall be interpreted to be in compliance therewith.

(b)A termination of employment shall not be deemed to have occurred for purposes of any provision of this Agreement providing for the payment of any amounts or taxable benefits subject to Code Section 409A upon or following a termination of employment unless such termination is also a “separation from service” within the meaning of Section 409A of the Code, and for purposes of any such provision of this Agreement, references to a “termination,” “termination of employment,” “termination of the Term,” or like terms shall mean “separation from service.” The determination of whether and when a separation from service has occurred shall be made in a manner consistent with, and based on the presumptions set forth in, U.S. Treasury Regulation Section 1.409A-1(h) or any successor provision thereto.

(c)It is intended that each installment, if any, of any payments and benefits provided hereunder to which Code Section 409A is applicable shall be treated as a separate “payment” for purposes of Code Section 409A. Neither the Company nor the Employee shall have the right to accelerate or defer the delivery of any such payments or benefits except to the extent specifically permitted or required by Section 409A of the Code.

(d)In the event, as of the date of the Employee’s “separation from service,” the Employee is a “specified employee” (within the meaning of that term under Code Section 409A(a)(2)(B)), then with regard to any payment or the provision of any benefit that is subject to Code Section 409A (whether under this Agreement, or pursuant to any other agreement with, or plan, program, payroll practice of, the Company) and is due upon or as a result of the Employee’s separation from service, such payment or benefit shall not be made or provided, to the extent making or providing such payment or benefit would result in additional taxes or interest under Section 409A of the Code, until the date which is the earlier of (A) the expiration of the six (6)-month period measured from the date of such “separation from service,” and (B) the date of

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EXHIBIT 10.24

the Employee’s death and shall then be paid in a single sum as soon as practicable on or after the

date such payment is permitted to be made under this paragraph.

(e)All reimbursements and in-kind benefits provided under this Agreement or otherwise to the Employee, to the extent such payments or benefits are subject to Code Section 409A, shall be made or provided in accordance with the requirements of Section 409A of the Code and specifically, consistent with Treasury Regulation Section 1.409A- 3(i)(1)(iv).

6.3Certain Excise Taxes. Notwithstanding anything to the contrary in this Agreement, if the Employee is a “disqualified individual” (as defined in Section 280G(c) of the Code), and the payments and benefits provided for in this Agreement, together with any other payments and benefits which the Employee has the right to receive from the Company or any of its affiliates, would constitute a “parachute payment” (as defined in Section 280G(b)(2) of the Code), then the payments and benefits provided for in this Agreement shall be either (a) reduced (but not below zero) so that the present value of such total amounts and benefits received by the Employee from the Company and its affiliates will be one dollar ($1.00) less than three times the Employee’s “base amount” (as defined in Section 280G(b)(3) of the Code) and so that no portion of such amounts and benefits received by the Employee shall be subject to the excise tax imposed by Section 4999 of the Code or (b) paid in full, whichever produces the better net after-tax position to the Employee (taking into account any applicable excise tax under Section 4999 of the Code and any other applicable taxes, and as determined by the Company and its advisors in their sole discretion). Nothing in this Section 6.3 shall require the Company to be responsible for, or have any liability or obligation with respect to, the Employee’s excise tax liabilities under Section 4999 of the Code.

7.Indemnification. The Company will agree to indemnify the Employee with respect to activities in connection with the Employee’s employment hereunder on the terms and conditions set forth in its standard Indemnification Agreement for officers and directors. The parties shall execute the Indemnification Agreement upon or shortly following the Employment Start Date.

Miscellaneous.

8.1At Will Employment. Employment with the Company is for no specific period of time and, at all times, is “at will” in nature, which means the employment relationship can be terminated by either of the Employee or the Company for any reason, at any time. Any statements or representations to the contrary (and, indeed, any statements contradicting any provision in this Agreement) are superseded by this Agreement. Further, the Employee’s participation in any stock option or benefit program is not to be regarded as assuring the Employee of continuing employment for any particular period of time.

8.2Notices. Any notice or other communication required or permitted hereunder shall be in writing and shall be delivered via email, as follows:

if to the Company, to:

Xxxx Xxxxxxxx Xxxxxxx, [*]

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EXHIBIT 10.24

if to the Employee, to:

Xxxxx Xxxx, [*]

Any party may change its address for notice hereunder by notice to the other party hereto.

8.3Entire Agreement. This Agreement contains the entire agreement between the parties with respect to the subject matter hereof and supersedes all prior agreements (including but not limited to prior employment agreements and incentive plans and agreements), written or oral, with respect thereto, however, the terms of any benefit plans shall remain in force and effect.

8.4Background Check. Employment under this Agreement is conditioned upon satisfactory verification of criminal, education, driving and/or employment background.

8.5Waivers and Amendments. This Agreement may be amended, superseded, canceled, renewed or extended, and the terms and conditions hereof may be waived, only by a written instrument signed by the parties or, in the case of a waiver, by the party waiving compliance. No delay on the part of any party in exercising any right, power or privilege hereunder shall operate as a waiver thereof nor shall any waiver on the part of any party of any such right, power or privilege hereunder, nor any single or partial exercise of any right, power or privilege hereunder, preclude any other or further exercise thereof or the exercise of any other right, power or privilege hereunder.

8.6Governing Law. This Agreement shall be governed by and construed in accordance with the laws of the Commonwealth of Pennsylvania (without giving effect to the choice of law provisions thereof).

8.7Assignment. This Agreement, and any rights and obligations hereunder, may not be assigned by the Employee and may be assigned by the Company only to a successor by merger or purchasers of substantially all of the assets of the Company or its affiliates; provided, however, that this Agreement shall inure to the benefit of and may be enforced by the Employee’s heirs and legal representatives.

8.8Counterparts. This Agreement may be executed in separate counterparts, each of which when so executed and delivered shall be deemed an original, but all of which together shall constitute one and the same instrument.

8.9Headings. The headings in this Agreement are for reference purposes only and shall not in any way affect the meaning or interpretation of this Agreement.

8.10No Presumption against Interest. This Agreement has been negotiated, drafted, edited and reviewed by the respective parties, and therefore, no provision of this Agreement shall be construed against any party as being drafted by said party.

8.11No Duty to Mitigate. The Employee shall not be required to mitigate damages with respect to the termination of the Employee’s employment under this Agreement by seeking other employment or otherwise, and there shall be no offset against amounts due the

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EXHIBIT 10.24

Employee under this Agreement on account of subsequent employment except as specifically provided in this Agreement. Additionally, amounts owed to the Employee under this Agreement shall not be offset by any claims the Company may have against the Employee, and the Company’s obligation to make the payments provided for in this Agreement, and otherwise to perform its obligations hereunder, shall not be affected by any other circumstances, including, without limitation, any counterclaim, recoupment, defense or other right which the Company may have against the Employee or others.

8.12Dispute Resolution. If any dispute arises out of or relates to this Agreement, or the breach thereof, the Employee and the Company agree to promptly negotiate in good faith to resolve such dispute. If the dispute cannot be settled by the parties through negotiation, the Employee and the Company agree to try in good faith to settle the dispute by mediation under the then-current employment mediation rules of the American Arbitration Association the (“AAA”) before resorting to arbitration or any other dispute resolution procedure. If the parties are unable to settle the dispute by mediation as provided in the preceding sentence within 30 days of a written demand for mediation, any Arbitrable Claims (as defined herein) shall be resolved by binding arbitration before one (1) arbitrator in accordance with the AAA’s then-current rules for the resolution of employment disputes (currently the Employment Arbitration Rules and Mediation Procedures, which may be accessed at xxxxx://xxx.xxx.xxx/xxxxx/xxxxxxx/xxxxx/XxxxxxxxxxXxxxx_Xxx0000.xxx). The arbitration shall be held in Philadelphia County, Pennsylvania, or such other location to which the parties mutually agree. The arbitrator shall among other things determine the validity, scope, interpretation and enforceability of this arbitration clause. The award shall be a reasoned award and rendered within 30 days of the conclusion of the arbitration hearing. The decision of the arbitrator shall be final and binding and judgment upon the award rendered may be entered in any court having jurisdiction thereof. “Arbitrable Claims” refers to any claim, controversy or dispute arising out of or relating to the Employee’s employment with the Company and the termination thereof, including, but not limited to, claims arising from or related to this Agreement or the breach thereof, or claims for unpaid wages, wrongful termination, torts, stock or stock options or other ownership interest in the Company, and/or discrimination (including harassment) based upon any federal, state, or local ordinance, statute, regulation or constitutional provision. Notwithstanding the foregoing provisions of this Section 8.12, either party may seek injunctive relief from a court of competent jurisdiction located in Philadelphia County, Pennsylvania, in the event of a breach or threatened breach of any covenant contained in the EIACNA.

8.13Attorney Fees. The Company will reimburse you for up to $5,000.00 for your reasonable attorney fees in reviewing and negotiating this Agreement, upon receipt of one or more letters from counsel that you have incurred at least the amount sought, and with payment to be made within 10 days after receipt of the letter.

8.14Authorization to Work. Because of employer regulations adopted in the Immigration Reform and Control Act of 1986, within three (3) business days of the Employment Start Date, the Employee must present documentation demonstrating that the Employee has authorization to work in the United States. The obligations set forth in this Agreement are contingent upon satisfaction of this requirement.

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EXHIBIT 10.24

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EXHIBIT 10.24

IN WITNESS WHEREOF, the parties have executed this Agreement as of the date first above written.

EMPLOYEE:COMPANY:

Passage BIO, Inc.

/s/ Xxxxx Xxxx

Xxxxx Xxxx

By: /s/ Xxxx Xxxxxxx

Name: Xxxx Xxxxxxx

Title: Chief Executive Officer

Date: 9/8/2019

Date: 9/10/2019

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EXHIBIT 10.24

AMENDMENT TO EMPLOYMENT AGREEMENT

This Amendment (the “Amendment”) to the Employment Agreement dated September 10, 2019 (the “Employment Agreement”), by and between Passage BIO, Inc. (the “Company”) and Xxxxx Xxxx (the “Employee”) will become effective on the day immediately prior to the first date on which the Registration Statement on Form S-1 for the initial public offering of the Company’s common stock is declared effective by the United States Securities and Exchange Commission. All capitalized terms not otherwise defined herein shall have the same meanings as set forth in the Employment Agreement.

RECITALS

WHEREAS,the Company and the Employee desire to amend certain terms of the Employment Agreement with respect to the treatment of the Employee’s equity awards upon certain terminations of service in the manner reflected herein.

NOW, THEREFORE, in consideration of the mutual covenants contained herein and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto agree as follows:

Amendment to Employment Agreement: Section 5.5 of the Employment Agreement is amended and restated in its entirety as follows:

“Termination without Cause or Resignation for Good Reason within 2 months prior to, or 12 months following a Change in Control. In the event of a termination of employment resulting from (i) a termination by the Company of the Employee’s employment for any reason other than Cause, death or disability (as defined in Section 22(e)(3) of the Code) or (ii) the Employee’s voluntary resignation of employment for Good Reason, in each case within 2 months prior to, or 12 months following a Change in Control, then subject to the Employee’s satisfaction of the Severance Conditions (defined above), the Employee will be entitled to:

(a)

the payments and benefits referenced in Section 5.4; provided that “Severance” shall also be deemed to include 100% of Employee’s then-current target bonus for the year in which such termination of employment occurs; and

(b)

each of the Employee’s then-outstanding unvested options to purchase shares of the Company common stock as well as any and all other stock-based awards granted to the Employee, including but not limited to stock bonus awards, restricted stock, restricted stock units or stock appreciation rights (“Awards”) shall accelerate and become fully vested and, if applicable, exercisable and any forfeiture restrictions thereon shall lapse, effective as of the date of such termination of service; provided, however, that the grant agreement for the purpose of any Award that would otherwise vest upon satisfaction of performance metrics or factors other than the continuation of the Employee’s employment with the Company

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EXHIBIT 10.24

(the “Performance-Based Awards”) may provide for alternative treatment in lieu of the foregoing and, absent any such treatment in the grant agreement, the vesting acceleration provided for herein shall be deemed to have been met based on the achievement of the Performance-Based Award at the greater of “at target” or, if determinable, actual performance.

Notwithstanding anything to the contrary herein or in any equity plan or any applicable award agreement pursuant to Awards granted thereunder, if the successor or acquiring corporation (if any) of the Company refuses to assume, convert, replace or substitute the Employee’s unvested Awards in connection with a Change in Control, each of the Employee’s unvested Awards that are not assumed, converted, replaced or substituted, shall accelerate and become fully vested and if applicable, exercisable, effective immediately prior to the Change in Control. With respect to Performance-Based Awards, the grant agreement may provide for alternative treatment in lieu of the foregoing and, absent any such treatment in the grant agreement, the vesting acceleration provided for herein shall be deemed to have been met based on the achievement of the Performance-Based Award at the greater of “at target” or, if determinable, actual performance.

No Other Amendment. Except as expressly set forth above, all of the terms and conditions of the Employment Agreement remain in full force and effect, including but not limited to provisions regarding the at-will nature of Employee’s services to the Company.

Governing Law. This Amendment shall be governed by and construed in accordance with the law of the Commonwealth of Pennsylvania without regard to conflicts of law principles thereof.

Counterparts. This Amendment may be executed in two or more counterparts, each of which shall be deemed an original and such counterparts together shall constitute one and the same instrument.

(Signature Pages Follow)

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EXHIBIT 10.24

IN WITNESS WHEREOF, each of the parties has executed this Amendment to the Employment Agreement as of the day and year first above written.

PASSAGE BIO, INC.

/s/ Xxxx Xxxxxxx

By: Name: Xxxx Xxxxxxx

Title:Chief Operating Officer

Name: Xxxxx Xxxx

/s/ Xxxxx Xxxx

EMPLOYEE

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EMPLOYMENT AGREEMENT

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