Certain identified information has been excluded from this exhibit because it is both (i) not material and (ii) is the type of information that the registrant treats as private or confidential. Triple asterisks denote omissions NY-2442286 LOAN AND...

Certain identified information has been excluded from this exhibit because it is both (i) not material and (ii) is the type of information that the registrant treats as private or confidential. Triple asterisks denote omissions NY-2442286 LOAN AND SECURITY AGREEMENT THIS LOAN AND SECURITY AGREEMENT is made and dated as of October 6, 2022 and is entered into by and among Replimune Group, Inc., a Delaware corporation, and each of its Subsidiaries (other than Excluded Subsidiaries and the MSC Subsidiary) (hereinafter individually and collectively referred to as “Borrower”), the several banks and other financial institutions or entities from time to time parties to this Agreement (collectively, referred to as the “Lenders”) and HERCULES CAPITAL, INC., a Maryland corporation, in its capacity as administrative agent and collateral agent for itself and the Lenders (in such capacity, the “Agent”). RECITALS X. Xxxxxxxx has requested the Lenders make available to Borrower term loans in an aggregate principal amount of up to Two Hundred Million Dollars ($200,000,000) (collectively, the “Term Loan”); and B. The Lenders are willing to make the Term Loan on the terms and conditions set forth in this Agreement. AGREEMENT NOW, THEREFORE, Borrower, Agent and the Lenders agree as follows: SECTION 1 DEFINITIONS AND RULES OF CONSTRUCTION 1.1 Unless otherwise defined herein, the following capitalized terms shall have the following meanings: “Account Control Agreement(s)” means any agreement entered into by and among the Agent, Borrower and a third party bank or other institution (including a Securities Intermediary) in which Borrower maintains a Deposit Account or an account holding Investment Property and which perfects Agent’s first priority security interest in the subject account or accounts, or in the case of a jurisdiction outside of the United States, any agreements in favor of the Agent pledging the accounts of the applicable Borrower as security, in form and substance reasonably satisfactory to the Agent. “ACH Authorization” means the ACH Debit Authorization Agreement in substantially the form of Exhibit G, which account numbers shall be redacted for security purposes if and when filed publicly by the relevant Borrower. “Acquisition” means any transaction or series of related transactions for the purpose of or resulting, directly or indirectly, in (a) the acquisition of all or substantially all of the assets of a Person, or of any business, line of business or division or other unit of operation of a Person, (b) the acquisition of the Equity Interests of any Person, whether or not involving a merger, consolidation or similar transaction with such other Person, or otherwise causing any Person to become a Subsidiary of Borrower, or (c) the acquisition of, or the right to use, develop

2 NY-2442286 or sell (in each case, including through licensing), any product, product line or Intellectual Property of or from any other Person. “Advance(s)” means a Term Loan Advance. “Advance Date” means the funding date of any Advance. “Advance Request” means a request for an Advance submitted by Borrower to Agent in substantially the form of Exhibit A, which account numbers shall be redacted for security purposes if and when filed publicly by Xxxxxxxx. “Affiliate” means (a) any Person that directly or indirectly controls, is controlled by, or is under common control with the Person in question, (b) any Person directly or indirectly owning, controlling or holding with power to vote ten percent (10%) or more of the outstanding voting securities of another Person, (c) any Person ten percent (10%) or more of whose outstanding voting securities are directly or indirectly owned, controlled or held by another Person with power to vote such securities, or (d) any Person related by blood or marriage to any Person described in subsection (a), (b) or (c) of this paragraph. As used in the definition of “Affiliate,” the term “control” means the possession, directly or indirectly, of the power to direct or cause the direction of the management and policies of a Person, whether through ownership of voting securities, by contract or otherwise. “Agreement” means this Loan and Security Agreement, as amended from time to time. “Amortization Date” means initially, October 1, 2026; provided however, that (a) if the Approval Milestone is achieved prior to October 1, 2026, such date shall be extended to April 1, 2027 and (b) if (i) if the conditions to the extension set forth in clause (a) have been satisfied and (ii) the Revenue Milestone is achieved, such date shall be extended to October 1, 2027. “Anti-Corruption Laws” shall mean all laws, rules, and regulations of any jurisdiction applicable to Borrower or any of its Affiliates from time to time concerning or relating to bribery or corruption, including without limitation the United States Foreign Corrupt Practices Act of 1977, as amended, the UK Xxxxxxx Xxx 0000 and other similar legislation in any other jurisdictions. “Anti-Terrorism Laws” means any laws, rules, regulations or orders relating to terrorism or money laundering, including without limitation Executive Order No. 13224 (effective September 24, 2001), the USA PATRIOT Act, the laws comprising or implementing the Bank Secrecy Act, and the laws administered by OFAC. “Approval Milestone” means the satisfaction of each of the following events: (a) no Default or Event of Default shall have occurred and be continuing and (b) Parent shall have stated in Parent’s public filings with the Securities and Exchange Commission (as confirmed by Agent in its reasonable discretion) that the FDA has approved the commercialization in the United States of RP1 for either indications related to: (i) the treatment of patients with CSCC or (ii) the treatment of patients with Melanoma who failed anti-PD1 therapy, in each case with a

3 NY-2442286 label claim that is generally consistent in all material respects with that sought in Xxxxxxxx’s BLA filing. “Article 55 BRRD” means Article 55 of Directive 2014/59/EU (as amended or reenacted from time to time) establishing a framework for the recovery and resolution of credit institutions and investment firms. “Bail-In Action” means the exercise of any Write-down and Conversion Powers. “Bail-In Legislation” means: (a) in relation to an EEA Member Country which has implemented, or which at any time implements, Article 55 BRRD, the relevant implementing law or regulation as described in the EU Bail-In Legislation Schedule from time to time; and (b) in relation to any state other than such an EEA Member Country or (to the extent that the United Kingdom is not such an EEA Member Country) the United Kingdom, any analogous law or regulation from time to time which requires contractual recognition of any Write-down and Conversion Powers contained in that law or regulation. “BLA” has the meaning set forth in the definition of BLA Filing. “BLA Filing” means a Biologics License Application (“BLA”) with respect to RP1 that was submitted by Borrower to the FDA. “Blocked Person” means any Person: (a) listed in the annex to, or is otherwise subject to the provisions of, Executive Order No. 13224, (b) a Person owned or controlled by, or acting for or on behalf of, any Person that is listed in the annex to, or is otherwise subject to the provisions of, Executive Order No. 13224, (c) a Person with which any Lender is prohibited from dealing or otherwise engaging in any transaction by any Anti Terrorism Law, (d) a Person that commits, threatens or conspires to commit or supports “terrorism” as defined in Executive Order No. 13224, or (e) a Person that is named a “specially designated national” or “blocked person” on the most current list published by OFAC or other similar list. “Board of Directors” means the board of directors or comparable governing body of such Person, or any subcommittee thereof, as applicable. “Borrower Products” means all products, software, service offerings, technical data or technology currently being designed, manufactured or sold by Borrower or which Borrower intends to sell, license, or distribute in the future including any products or service offerings under development, collectively, together with all products, software, service offerings, technical data or technology that have been sold, licensed or distributed by Borrower since its incorporation and remain material to its business. “Borrower’s Books” means Borrower’s or any of its Subsidiaries’ books and records including ledgers, federal, state, local and foreign tax returns, records regarding Borrower’s or its Subsidiaries’ assets or liabilities, the Collateral, business operations or financial condition, and all computer programs or storage or any equipment containing such information. “Business Day” means any day other than Saturday, Sunday and any other day on which banking institutions in the State of California are closed for business.

4 NY-2442286 “Cash” means all cash, cash equivalents and liquid funds. “Change in Control” means (a) any reorganization, recapitalization, consolidation or merger (or similar transaction or series of related transactions) of Parent, sale or exchange of outstanding shares (or similar transaction or series of related transactions) of Parent in which the holders of Parent’s outstanding shares immediately before consummation of such transaction or series of related transactions do not, immediately after consummation of such transaction or series of related transactions, retain shares representing more than fifty percent (50%) of the voting power of the surviving entity of such transaction or series of related transactions (or the parent of such surviving entity if such surviving entity is wholly owned by such parent), in each case without regard to whether Parent is the surviving entity or (b) Borrower ceases to own, directly or indirectly, 100% of the ownership interests in each Subsidiary of such Borrower (except for mergers or consolidations of a Subsidiary into another Subsidiary or into Borrower, or the dissolution of a Subsidiary to the extent permitted hereunder). “Clinical Milestone” means the satisfaction of each of the following events: (a) no Default or Event of Default shall have occurred and be continuing and (b) Parent shall have stated in Parent’s public filings with the Securities and Exchange Commission and delivered supporting documentation satisfactory to Agent (as determined by Agent in its reasonable discretion) that it has achieved a protocol specified primary endpoint from the study entitled, Study Evaluating Cemiplimab Alone and Combined With RP1 in Treating Advanced Squamous Skin Cancer (CERPASS) (NCT04050436) which, taken together with other secondary endpoints, support the submission of a BLA Filing as the next immediate step in development (as determined by Xxxxxxxx’s executive team and Board of Directors and subject to Lender’s reasonable verification). “Closing Date” means the date of this Agreement. “Code” means the Internal Revenue Code of 1986, as amended. “Common Stock” means the common stock of Parent. “Company IP” means any and all of the following, as they exist in and throughout the United States of America: (a) Current Company IP; (b) improvements, continuations, continuations-in-part, divisions, provisionals or any substitute applications, any Patent issued with respect to any of the Current Company IP, any Patent right claiming the composition of matter of, or the method of making or using, the Products in the United States of America, any reissue, reexamination, renewal or Patent term extension or adjustment (including any supplementary protection certificate) of any such Patent, and any confirmation Patent or registration Patent or patent of addition based on any such Patent; (c) trade secrets or trade secret rights, including any rights to unpatented inventions, know-how, show-how, operating manuals, confidential or proprietary information, research in progress, algorithms, data, databases, data collections, designs, processes, procedures, methods, protocols, materials, formulae, drawings, schematics, blueprints, flow charts, models, strategies, prototypes, techniques, and the results of experimentation and testing, including samples, in each case, as specifically related to any research, development, manufacture, production, use, commercialization, marketing, importing,

5 NY-2442286 storage, transport, offer for sale, distribution or sale of the Products; and (d) any and all IP Ancillary Rights specifically relating to any of the foregoing. “Contingent Obligation” means, as applied to any Person, any direct or indirect liability, contingent or otherwise, of that Person with respect to (i) any Indebtedness, lease, dividend, letter of credit or other obligation of another, including any such obligation directly or indirectly guaranteed, endorsed, co-made or discounted or sold with recourse by that Person, or in respect of which that Person is otherwise directly or indirectly liable; (ii) any obligations with respect to undrawn letters of credit, corporate credit cards or merchant services issued for the account of that Person; and (iii) all obligations arising under any interest rate, currency or commodity swap agreement, interest rate cap agreement, interest rate collar agreement, or other agreement or arrangement designated to protect a Person against fluctuation in interest rates, currency exchange rates or commodity prices; provided, however, that the term “Contingent Obligation” shall not include endorsements for collection or deposit in the ordinary course of business. The amount of any Contingent Obligation shall be deemed to be an amount equal to the stated or determined amount of the primary obligation in respect of which such Contingent Obligation is made or, if not stated or determinable, the maximum reasonably anticipated liability in respect thereof as determined by such Person in good faith; provided, however, that such amount shall not in any event exceed the maximum amount of the obligations under the guarantee or other support arrangement. “Copyright License” means any written agreement granting any right to use any Copyright or Copyright registration, now owned or hereafter acquired by Borrower or in which Borrower now holds or hereafter acquires any interest. “Copyrights” means all copyrights, whether registered or unregistered, held pursuant to the laws of the United States of America, any State thereof, the United Kingdom, or of any other country. “CSCC” means Cutaneous Squamous Cell Carcinoma. “Default” means a fact, event or condition that constitutes an Event of Default or that, with the giving of notice or the lapse of time, or both, would, unless cured or waived, constitute an Event of Default. “Deposit Accounts” means any “deposit accounts,” as such term is defined in the UCC, and includes any checking account, savings account, or certificate of deposit. “Domestic Subsidiary” means any Subsidiary organized under the laws of the United States of America, any State thereof, the District of Columbia, or any other jurisdiction within the United States of America. “Due Diligence Fee” means $65,000, which fee has been paid to the Lenders prior to the Closing Date and shall be deemed fully earned on such date regardless of the early termination of this Agreement and shall be applied in its entirety on the Closing Date towards the Lenders’ non-legal transaction costs and due diligence expenses.

6 NY-2442286 “EEA Member Country” means any member state of the European Union, Iceland, Liechtenstein and Norway. “English Debenture” means that certain English law governed debenture, dated as of the date hereof, executed by Replimune UK and the Agent. “English Security Documents” means the following documents, each in form and substance reasonably satisfactory to Agent: (a)the English Debenture , (b) that certain English law governed share charge in respect of the entire issued share capital of Replimune UK, dated as of the date hereof, executed by the Parent and the Agent, and (c) such other documents incidental to the foregoing documents as Agent may reasonably determine necessary. “EU Bail-In Legislation Schedule” means the document described as such and published by the Loan Market Association (or any successor person) from time to time. “End of Term Charge” means any end of term charge payable pursuant to Section 2.6. “Equity Interests” means, with respect to any Person, the capital stock, partnership or limited liability company interest, or other equity securities or equity ownership interests of such Person. “ERISA” means the Employee Retirement Income Security Act of 1974, as amended, and the regulations promulgated thereunder. “Excluded Account” means (a) any deposit account or securities account exclusively used as a trust, collateral, or escrow account, in each case (1) entered into in the ordinary course of business, (2) where the applicable Borrower holds the funds exclusively for the benefit of an unaffiliated third party, (3) such funds are pledged or otherwise encumbered as set forth on Schedule 1C or pursuant to clauses (vi), (xiv), or (xv) of the definition of Permitted Liens, and (4) only to the extent required to be excluded pursuant to the underlying documents entered into in connection with such Permitted Liens, (b) any deposit account or securities account exclusively used to secure obligations permitted under clause (vii) of the definition of Permitted Indebtedness, and (c) any deposit account exclusively used for payroll, payroll taxes and other employee wage and benefit payments to or for any Borrower’s employees, collectively not to exceed the amount to be paid in the ordinary course of business in the then-next payroll cycle. “Excluded Subsidiaries” means all Foreign Subsidiaries (other than Replimune UK) that (a) generate in the aggregate less than 5.00% of the consolidated trailing twelve month revenue calculated in accordance with GAAP of the Parent and its Subsidiaries as of the last day of the most recent fiscal month for which financial statements of the Parent are available or (b) hold in the aggregate assets that constitute less than 5.00% of consolidated total assets of the Parent and its Subsidiaries, at any time; provided that, if the consolidated trailing twelve month revenue calculated in accordance with GAAP or consolidated total assets of all Foreign Subsidiaries that would otherwise be an “Excluded Subsidiary” pursuant to clauses (a) and (b) above exceeds (i) 5.00% of the of the consolidated trailing twelve month revenue calculated in accordance with GAAP of the Parent and its Subsidiaries for such fiscal month or (ii) 5.00% of

7 NY-2442286 consolidated total assets of the Parent and its Subsidiaries, at any time, then Borrower shall designate in writing to the Agent one or more of such Foreign Subsidiaries to become a Borrower to the extent necessary to eliminate such excess. “FDA” means the U.S. Food and Drug Administration or any successor thereto or any other comparable Governmental Authority. “FDA Laws” means all applicable statutes, rules, regulations, published guidance and Requirements of Law administered, implemented, enforced or issued by FDA or any comparable governmental authority. “Federal Health Care Program Laws” means collectively, federal Medicare or federal or state Medicaid statutes, Sections 1128, 1128A, 1128B, 1128C or 1877 of the Social Security Act (42 U.S.C. §§ 1320a-7, 1320a-7a, 1320a-7b, 1320a-7c, 1320a-7h and 1395nn), the federal TRICARE statute (10 U.S.C. § 1071 et seq.), the civil False Claims Act of 1863 (31 U.S.C. § 3729 et seq.), criminal false claims statutes (e.g., 18 U.S.C. §§ 287 and 1001), the Program Fraud Civil Remedies Act of 1986 (31 U.S.C. § 3801 et seq.), and the Health Insurance Portability and Accountability Act of 1996 (42 U.S.C. §§ 1320d-1329d-8), as amended by the Health Information Technology for Economic and Clinical Health Act, enacted as Title XIII of the American Recovery and Reinvestment Act of 2009, Public Law 111-5 (collectively, “HIPAA”) or related regulations or other Requirements of Law applicable to Borrower that directly or indirectly govern the health care industry, programs of governmental authorities related to healthcare, health care professionals or other health care participants, or relationships among health care providers, suppliers, distributors, manufacturers and patients. “Forecast” means the projections for Borrower as delivered to Agent by Borrower within 30 days after the achievement of the Approval Milestone, subject to approval by the Agent in its reasonable discretion; provided that (i) if Borrower does not submit such projections within such 30 day period after the achievement of the Approval Milestone then the Forecast shall be the projections delivered to Agent as of the Closing Date, (ii) if the Agent does not reject the projections delivered within such 30 day period after the achievement of the Approval Milestone in writing within 30 days after Xxxxxxxx has received written confirmation from Agent that it has received such projections (with an explanation as to the reason(s) for such rejection) then such projections shall be deemed to be approved and shall be the Forecast, and (iii) Borrower may from time to time update the Forecast with a forecast approved by Xxxxxxxx's Board of Directors delivered to Agent pursuant to Section 7.1(h), subject to approval by the Agent in its reasonable discretion. “Foreign Subsidiary” means any Subsidiary other than a Domestic Subsidiary. “GAAP” means generally accepted accounting principles in the United States of America, as in effect from time to time. “HMRC” means HM Revenue & Customs of the UK. “Indebtedness” means indebtedness of any kind, including (a) all indebtedness for borrowed money or the deferred purchase price of property or services (excluding trade credit entered into in the ordinary course of business due within ninety (90) days), including non-

8 NY-2442286 contingent reimbursement and other obligations with respect to surety bonds and letters of credit, (b) all obligations evidenced by notes, bonds, debentures or similar instruments, (c) all capital lease obligations, (d) equity securities of any Person subject to repurchase or redemption other than at the sole option of such Person, (e) “earnouts”, purchase price adjustments, profit sharing arrangements, deferred purchase money amounts and similar payment obligations or continuing obligations of any nature arising out of purchase and sale contracts, (f) obligations arising under bonus, deferred compensation, incentive compensation or similar arrangements (other than those arising in the ordinary course of business), (g) non-contingent obligations to reimburse any bank or Person in respect of amounts paid under a letter of credit, banker’s acceptance or similar instrument, and (h) all Contingent Obligations. “Initial Facility Charge” means an amount equal to Four Hundred and Eighty- Seven Thousand and Five Hundred Dollars ($487,500), which is payable to the Lenders in accordance with Section 4.1(h). “Insolvency Proceeding” is any proceeding by or against any Person under the United States Bankruptcy Code, or any other bankruptcy, liquidation, moratorium, receivership, or insolvency law, including assignments for the benefit of creditors, compositions, extensions generally with its creditors, or proceedings seeking reorganization, administration, arrangement, or other similar relief proceedings in the applicable jurisdiction from time to time in effect and affecting the rights of creditors generally. “Intellectual Property” means all of Borrower’s Copyrights; Trademarks; Patents; Licenses; trade secrets and inventions; mask works; Borrower’s applications therefor and reissues, extensions, or renewals thereof; and Borrower’s goodwill associated with any of the foregoing, together with Xxxxxxxx’s rights to sue for past, present and future infringement of Intellectual Property and the goodwill associated therewith. “Investment” means (a) any beneficial ownership (including stock, partnership, limited liability company interests, or other equity securities or ownership interests) of or in any Person, (b) any loan, advance or capital contribution to any Person, (c) any Acquisition or (d) other transfers on behalf of or in connection with any equity ownership or similar transfers. “IP Ancillary Rights” means, with respect to any Copyright, Trademark, Patent, software, trade secrets or trade secret rights, including any rights to unpatented inventions, know- how, show-how and operating manuals, all income, royalties, proceeds and liabilities at any time due or payable or asserted under or with respect to any of the foregoing or otherwise with respect thereto, including all rights to sue or recover at law or in equity for any past, present or future infringement, misappropriation, dilution, violation or other impairment thereof, and, in each case, all rights to obtain any other intellectual property right ancillary to any Copyright, Trademark, Patent, software, trade secrets or trade secret rights. “IRS” means the United States Internal Revenue Service. “Joinder Agreements” means for each Subsidiary (other than Excluded Subsidiaries and the MSC Subsidiary), a completed and executed (i) Joinder Agreement in substantially the form attached hereto as Exhibit F, or (ii) joinder documentation in form and

9 NY-2442286 substance reasonably satisfactory to the Agent joining a Subsidiary as a party under the English Security Documents or similar security documents under the relevant jurisdiction, as applicable. “License” means any Copyright License, Patent License, Trademark License or other license of rights or interests in respect of Company IP. “Lien” means any mortgage, deed of trust, pledge, hypothecation, assignment for security, security interest, encumbrance, xxxx, xxxx or charge of any kind and any other security interest or other agreements or arrangements having a similar effect, whether voluntarily incurred or arising by operation of law or otherwise, against any property, any conditional sale or other title retention agreement, and any lease in the nature of a security interest. “Loan” means the Advances made under this Agreement. “Loan Documents” means this Agreement, the promissory notes (if any), the ACH Authorization, the Account Control Agreements, the Joinder Agreements, all UCC Financing Statements, the Pledge Agreement, the English Security Documents, each Process Letter, and any other documents executed in connection with the Secured Obligations or the transactions contemplated hereby, as the same may from time to time be amended, modified, supplemented or restated. “Market Capitalization” means, as of any date of determination, the product of (a) the number of outstanding shares of Common Stock publicly disclosed in the most recent filing of Parent with the Securities and Exchange Commission as outstanding as of such date of determination and (b) the most recent closing price of Parent’s Common Stock (as quoted on Bloomberg L.P.’s page or any successor page thereto of Bloomberg L.P. or if such page is not available, any other commercially available source). “Material Adverse Effect” means a material adverse effect upon: (i) the business, operations, properties, assets or financial condition of Parent and its Subsidiaries taken as a whole; or (ii) the ability of Borrower to perform or pay the Secured Obligations in accordance with the terms of the Loan Documents, or the ability of Agent or the Lenders to enforce any of its rights or remedies with respect to the Secured Obligations; or (iii) the Collateral or Agent’s Liens on the Collateral or the priority of such Liens. “Material Regulatory Liabilities” means (i) any liabilities arising from the violation of Public Health Laws, Federal Health Care Program Laws, and other applicable comparable Requirements of Law (including FDA Laws and Federal Health Care Program Laws), including, but not limited to, withdrawal of approval, recall, revocation, suspension, import refusal and seizure of any Product, and (ii) any loss of recurring annual revenues as a result of any loss, suspension or limitation of any Registrations, which, in the case of each of clauses (i) and (ii), could reasonably be expected to result in a Material Adverse Effect. “Maximum Term Loan Amount” means Two Hundred Million and No/100 Dollars ($200,000,000). “Milestone” means individually, each of the Approval Milestone, Clinical Milestone, Revenue Milestone and/or Tranche 3 Milestone.

10 NY-2442286 “MSC Investment Conditions” means that Borrower maintains Qualified Cash in an amount equal to or greater than the lesser of (i) 100% of the aggregate outstanding Secured Obligations (inclusive of any Prepayment Charge and End of Term Charge that would be due and owing if the outstanding Term Loan Advances were prepaid at the time of measurement) or (ii) 100% of the consolidated Cash of Borrower and its Subsidiaries (other than Cash held in an Excluded Account). “MSC Subsidiary” means Replimune Securities Corporation, a wholly-owned Subsidiary incorporated in the Commonwealth of Massachusetts or the State of Delaware for the purpose of holding Investments as a Massachusetts security corporation under 830 CMR 63.38B.1 of the Massachusetts tax code and applicable regulations (as the same may be amended, modified or replaced from time to time). “Net Product Revenue” means net product revenue of the Borrower and its Subsidiaries, as determined in accordance with GAAP, that is generated solely from the sale of RP1 (which, for the avoidance of doubt, shall include sales, royalty, profit sharing, co- development, co-promotion and co-commercialization revenues recognized in accordance with GAAP, but which shall not include any revenue that is milestone-based or any other one-time or non-recurring revenue). “NIH” means the National Institutes of Health. “Non-Disclosure Agreement” means that certain Non-Disclosure Agreement by and between Parent and Hercules Capital, Inc., dated as of July 25, 2022. “OFAC” is the U.S. Department of Treasury Office of Foreign Assets Control. “OFAC Lists” are, collectively, the Specially Designated Nationals and Blocked Persons List maintained by OFAC pursuant to Executive Order No. 13224, 66 Fed. Reg. 49079 (Sept. 25, 2001) and/or any other list of terrorists or other restricted Persons maintained pursuant to any of the rules and regulations of OFAC or pursuant to any other applicable Executive Orders. “Parent” means Replimune Group, Inc., a Delaware corporation. “Patent License” means any written agreement granting any right with respect to any invention on which a Patent is in existence or a Patent application is pending, in which agreement Borrower now holds or hereafter acquires any interest. “Patents” means all letters patent of, or rights corresponding thereto, in the United States of America or in any other country, all registrations and recordings thereof, and all applications for letters patent of, or rights corresponding thereto, in the United States of America, the United Kingdom, or any other country. “Performance Covenant Trigger Date” means the first date on or after July 1, 2024 on which the aggregate outstanding principal amount of the Term Loan Advances equals or exceeds $100,000,000.

11 NY-2442286 “Permitted Acquisition” means any Acquisition (including by way of merger) by Borrower which is conducted in accordance with the following requirements: (a) such acquisition is of (i) a business or Person located within the United States of America engaged in a line of business related to that of Borrower or its Subsidiaries or (ii) a product, product line or Intellectual Property (or the right to use, develop or sell the same (including through licensing) related to the business of Borrower or its Subsidiaries; (b) if such acquisition is structured as a stock acquisition, then the Person so acquired shall either (i) become a wholly-owned Subsidiary of Borrower or of a Subsidiary and Borrower shall comply, or cause such Subsidiary to comply, with Section 7.13 hereof or (ii) such Person shall be merged with and into Borrower (with Borrower being the surviving entity); (c) if such acquisition is structured as the acquisition of assets, such assets shall be acquired by Borrower or a newly-organized wholly-owned Subsidiary (in which event such Subsidiary shall comply with Section 7.13 hereof), and shall be free and clear of Liens other than Permitted Liens; (d) Borrower shall have delivered to the Lenders not less than ten (10) days nor more than forty five (45) days prior to the date of such acquisition, notice of such acquisition together with, to the extent available, pro forma projected financial information, copies of all material documents relating to such acquisition, and historical financial statements for such acquired entity, division or line of business; (e) both immediately before and after such acquisition no Default or Event of Default shall have occurred and be continuing; and (f) the sum of the purchase price of such proposed new acquisition, computed on the basis of total acquisition consideration paid or incurred, or to be paid or incurred, by Borrower with respect thereto, including the amount of Permitted Indebtedness assumed or to which such assets, businesses or business or ownership interest or shares, or any Person so acquired, is subject, (i) at any time prior to the achievement of the Approval Milestone, shall not be greater than (x) Seven Million Five Hundred Thousand Dollars ($7,500,000) for any single acquisition or group of related acquisitions or (y) Ten Million Dollars ($10,000,000) for all such acquisitions during the term of this Agreement or (ii) at any time after the achievement of the Approval Milestone, shall not be greater than (x) Ten Million Dollars ($10,000,000) for any single acquisition or group of related acquisitions or (y) Twenty-Five Million Dollars ($25,000,000) for all such acquisitions during the term of this Agreement; provided that acquisition consideration funded by proceeds from the sale and issuance of Borrower’s Equity Interests in a transaction not resulting in a Change in Control, which sale and issuance has a primary purpose to fund such Acquisition, and which sale and issuance is consummated substantially contemporaneously with (and in any event, prior to, but no more than fifteen (15) days prior to) the consummation of such Acquisition, shall be disregarded in determining compliance with this clause (f); provided further, that for any

12 NY-2442286 Acquisition in which the consideration consists solely of Equity Interests of Borrower, the value of such Equity Interests shall be disregarded in determining compliance with this clause (f). “Permitted Convertible Debt” means issuance by Parent of convertible notes in an aggregate principal amount of not more than Four Hundred Million Dollars ($400,000,000); provided that such convertible notes shall (a) have a scheduled maturity date no earlier than one hundred eighty (180) days after the Term Loan Maturity Date, (b) be unsecured or secured, (c) not be guaranteed by any Subsidiary of Parent that is not a Borrower or a guarantor of the Secured Obligations, (d) contain conversion, redemption and fundamental change terms that are usual and customary for convertible notes issued in public or “Rule 144A” offerings, (e) if secured, contain usual and customary subordination terms for underwritten offerings of senior subordinated convertible notes and (f) if secured, shall specifically designate this Agreement and all Secured Obligations as “designated senior indebtedness” or similar term so that the subordination terms referred to in clause (e) of this definition specifically refer to such notes as being subordinated to the Secured Obligations pursuant to such subordination terms. “Permitted Indebtedness” means: (i) Indebtedness of Borrower in favor of the Lenders or Agent arising under this Agreement or any other Loan Document; (ii) Indebtedness existing on the Closing Date which is disclosed in Schedule 1A; (iii) Indebtedness of up to $10,000,000 outstanding at any time secured by a Lien described in clause (vii) of the defined term “Permitted Liens,” provided such Indebtedness does not exceed the cost of the Equipment financed with such Indebtedness; (iv) Indebtedness to trade creditors incurred in the ordinary course of business, including Indebtedness incurred in the ordinary course of business with corporate credit cards; (v) Indebtedness that also constitutes a Permitted Investment; (vi) Subordinated Indebtedness; (vii) reimbursement obligations in connection with letters of credit that are secured by Cash and issued on behalf of Borrower or a Subsidiary thereof in an amount not to exceed (A) at any time prior to the achievement of the Approval Milestone, $3,500,000 at any time outstanding or (B) at any time following the achievement of the Approval Milestone, $5,000,000 at any time outstanding, (viii) other unsecured Indebtedness in an amount not to exceed $2,000,000 at any time outstanding,

13 NY-2442286 (ix) intercompany Indebtedness as long as such Indebtedness (A) is owing from a Borrower to another Borrower, or (B) is owing from a Subsidiary to Borrower so long as such Indebtedness is a Permitted Investment; (x) Permitted Convertible Debt; and (xi) extensions, refinancings and renewals of any items of Permitted Indebtedness, provided that the principal amount is not increased (other than as a result of the capitalization of interest, fees or expenses) or the terms modified to impose materially more burdensome terms upon Borrower or its Subsidiary, as the case may be. “Permitted Investment” means: (i) Investments existing on the Closing Date which are disclosed in Schedule 1B; (ii) (a) marketable direct obligations issued or unconditionally guaranteed by the United States of America or any agency or any State thereof maturing within one year from the date of acquisition thereof currently having a rating of at least A-2 or P-2 from either Standard & Poor’s Corporation or Xxxxx’x Investors Services, (b) commercial paper maturing no more than one year from the date of creation thereof and currently having a rating of at least A-2 or P-2 from either Standard & Poor’s Corporation or Xxxxx’x Investors Service, (c) certificates of deposit issued by any bank with assets of at least $500,000,000 maturing no more than one year from the date of investment therein, and (d) money market accounts; (iii) repurchases of stock from former employees, directors, or consultants of Borrower under the terms of applicable repurchase agreements at the original issuance price of such securities in an aggregate amount not to exceed $1,000,000 in any fiscal year, provided that no Event of Default has occurred, is continuing or could exist after giving effect to the repurchases; (iv) Investments accepted in connection with Permitted Transfers; (v) Investments (including debt obligations) received in connection with the bankruptcy or reorganization of customers or suppliers and in settlement of delinquent obligations of, and other disputes with, customers or suppliers arising in the ordinary course of Borrower’s business; (vi) Investments consisting of notes receivable of, or prepaid royalties and other credit extensions, to customers and suppliers who are not Affiliates, in the ordinary course of business, provided that this subparagraph (vi) shall not apply to Investments of Borrower in any Subsidiary;

14 NY-2442286 (vii) Investments consisting of loans not involving the net transfer on a substantially contemporaneous basis of cash proceeds to employees, officers or directors relating to the purchase of capital stock of Parent pursuant to employee stock purchase plans or other similar agreements approved by Parent’s Board of Directors; (viii) Investments consisting of travel advances in the ordinary course of business; (ix) Investments in newly-formed Subsidiaries, provided that each such Subsidiary enters into a Joinder Agreement promptly after its formation by Xxxxxxxx and executes such other documents as shall be reasonably requested by Agent; (x) Investments in Excluded Subsidiaries not to exceed $500,000 in the aggregate per month and $1,000,000 in the aggregate per fiscal year; (xi) Investments in the MSC Subsidiary, so long as an Event of Default does not exist at the time of such Investment and would not exist after giving effect to such Investment and provided that Borrower is in compliance with Section 7.14 hereunder; (xii) joint ventures or strategic alliances in the ordinary course of Xxxxxxxx’s business consisting of the nonexclusive licensing of technology, the development of technology or the providing of technical support, provided that any cash Investments by Borrower do not exceed $500,000 in the aggregate in any fiscal year and, provided, further, that, for the avoidance of doubt, any cost-sharing arrangements in connection with collaborative studies with third parties shall not be subject to any such limitation; (xiii) Permitted Acquisitions; and (xiv) additional Investments that do not exceed $1,000,000 in the aggregate. “Permitted Liens” means: (i) Liens in favor of Agent or the Lenders; (ii) Liens existing on the Closing Date which are disclosed in Schedule 1C; (iii) Liens for taxes, fees, assessments or other governmental charges or levies, either not yet due or being contested in good faith by appropriate proceedings diligently conducted; provided, that Borrower maintains adequate reserves therefor on Borrower’s Books in accordance with GAAP;

15 NY-2442286 (iv) Liens securing claims or demands of materialmen, artisans, mechanics, carriers, warehousemen, landlords and other like Persons arising in the ordinary course of Xxxxxxxx’s business and imposed without action of such parties; provided, that the payment thereof is not yet required; (v) Liens arising from judgments, decrees or attachments in circumstances which do not constitute an Event of Default hereunder; (vi) the following deposits, to the extent made in the ordinary course of business: deposits under worker’s compensation, unemployment insurance, social security and other similar laws, or to secure the performance of bids, tenders or contracts (other than for the repayment of borrowed money) or to secure indemnity, performance or other similar bonds for the performance of bids, tenders or contracts (other than for the repayment of borrowed money) or to secure statutory obligations (other than Liens arising under ERISA or environmental Liens) or surety or appeal bonds, or to secure indemnity, performance or other similar bonds; (vii) Liens on Equipment or software or other intellectual property constituting purchase money Liens and Liens in connection with capital leases securing Indebtedness permitted in clause (iii) of “Permitted Indebtedness”; (viii) Liens incurred in connection with Subordinated Indebtedness; (ix) leasehold interests in leases or subleases and licenses granted in the ordinary course of business and not interfering in any material respect with the business of the licensor; (x) Liens in favor of customs and revenue authorities arising as a matter of law to secure payment of custom duties that are promptly paid on or before the date they become due; (xi) Liens on insurance proceeds securing the payment of financed insurance premiums that are promptly paid on or before the date they become due (provided that such Liens extend only to such insurance proceeds and not to any other property or assets); (xii) statutory and common law rights of set-off and other similar rights as to deposits of cash and securities in favor of banks, other depository institutions and brokerage firms; (xiii) easements, zoning restrictions, rights-of-way and similar encumbrances on real property imposed by law or arising in the ordinary course of business so long as they do not materially impair the value or marketability of the related property;

16 NY-2442286 (xiv) (A) Liens on Cash securing obligations permitted under clause (vii) of the definition of Permitted Indebtedness and (B) security deposits in connection with real property leases, the combination of (A) and (B) in an aggregate amount not to exceed (A) at any time prior to the achievement of the Approval Milestone, $3,500,000 at any time outstanding or (B) at any time following the achievement of the Approval Milestone, $5,000,000 at any time outstanding; (xv) Liens on Cash securing corporate credit card obligations permitted under clause (iv) of the definition of Permitted Indebtedness, in an aggregate amount not to exceed $500,000 at any time; and (xvi) Liens incurred in connection with the extension, renewal or refinancing of the Indebtedness secured by Xxxxx of the type described in clauses (i) through (xi) above; provided, that any extension, renewal or replacement Lien shall be limited to the property encumbered by the existing Lien and the principal amount of the Indebtedness being extended, renewed or refinanced (as may have been reduced by any payment thereon) does not increase, other than as a result of the capitalization of interest, fees and expenses thereunder. “Permitted Transfers” means: (i) sales of Inventory in the ordinary course of business; (ii) non-exclusive licenses, sublicenses and similar arrangements for the use of Company IP of Borrower or Borrower Products and related assets in the ordinary course of business that could not result in a legal transfer of title of the licensed property; (iii) exclusive licenses, sublicenses and similar arrangements for the use of Company IP of Borrower or Borrower Products and related assets in the ordinary course of business that could not result in a legal transfer of title of the licensed property that may be exclusive in respects other than territory, and that may be exclusive as to territory only as to discreet geographical areas outside of the United States of America; (iv) exclusive licenses, sublicenses and similar arrangements for the use of Company IP of Borrower or Borrower Products and related assets in the ordinary course of business that could not result in a legal transfer of title of the licensed property that is exclusive as to territory inside the United States of America, provided that each such license (a) is for a specific product or product candidate, other than RP1 in indications related to the treatment of patients with CSCC or the treatment of patients with Melanoma who failed anti-PD1 therapy, and (b) constitutes an arms-length transaction, the terms of which, on their face, do not provide for a sale or assignment by Borrower of any Company IP; (v) dispositions of worn-out, obsolete or surplus Equipment at fair market value in the ordinary course of business;

17 NY-2442286 (vi) transfers by and among any Borrower; (vii) the use or transfer of cash or cash equivalents in a manner that is not prohibited by the terms of this Agreement or the other Loan Documents and in the ordinary course of business; (viii) transfers consisting of Permitted Liens or Permitted Investments; (ix) subleases of real property or the termination of real property leases in the ordinary course of business; (x) transactions permitted under Section 7.9; and (xi) other transfers of assets having a fair market value of not more than $1,000,000 in the aggregate in any fiscal year. “Person” means any individual, sole proprietorship, partnership, joint venture, trust, unincorporated organization, association, corporation, limited liability company, institution, other entity or government. “Pledge Agreement” means the Pledge Agreement dated as of the Closing Date between each Borrower party thereto and Agent, as the same may from time to time be amended, restated, modified or otherwise supplemented. “Prime Rate” means the lesser of (a) the prime rate as reported in The Wall Street Journal and (b) 7.25%. “PSC Register” means the “PSC register” within the meaning of section 790C(10) of the Companies Xxx 0000. “Public Health Laws” means all Requirements of Law relating to the procurement, development, clinical and non-clinical evaluation, product approval or licensure, manufacture, production, analysis, importation, exportation, use, handling, quality, sale, labeling, promotion, clinical trial registration or post market requirements of any drug, biologic or other product (including, without limitation, any ingredient or component of the foregoing products) subject to regulation under the Federal Food, Drug, and Cosmetic Act (21 U.S.C. § 301 et seq.) and the Public Health Service Act (42 U.S.C. § 201 et seq.), including without limitation the regulations promulgated by the FDA at Title 21 of the Code of Federal Regulations, or any other FDA Laws, and all applicable regulations promulgated by the NIH and codified at Title 42 of the Code of Federal Regulations. “Products” means all products, software, service offerings, technical data or technology currently being designed, manufactured or sold by Borrower or any of its Subsidiaries or which Borrower or any of its Subsidiaries intends to sell, license, or distribute in the future including any products or service offerings under development, collectively, together with all products, software, service offerings, technical data or technology that have been sold, licensed or distributed by Borrower or such Subsidiary since formation.

18 NY-2442286 “Qualified Cash” means the amount of Borrower’s cash and cash equivalents held in accounts subject to an Account Control Agreement in favor of Agent. “Qualified Cash A/P Amount” means the amount of Xxxxxxxx’s accounts payable that have not been paid within one hundred twenty (120) days from the due date of the relevant account payable, other than any such accounts payable that are being contested in good faith by appropriate proceedings and for which Borrower and its Subsidiaries maintain adequate reserves in accordance with GAAP. “Receivables” means (i) all of Borrower’s Accounts, Instruments, Documents, Chattel Paper, Supporting Obligations, letters of credit, proceeds of any letter of credit, and Letter of Credit Rights, and (ii) all customer lists, software, and business records related thereto. “Redemption Conditions” means, with respect to any payment of cash in respect of the principal amount of any Permitted Convertible Debt, satisfaction of each of the following events: (a) no Default or Event of Default shall exist or result therefrom, and (b) both immediately before and at all times after such redemption, Borrower’s Unrestricted Cash shall be no less than 150% of the aggregate outstanding amount of the Secured Obligations (inclusive of any Prepayment Charge and End of Term Charge that would be due and owing if the outstanding Term Loan Advances were prepaid at the time of measurement) plus the Qualified Cash A/P Amount. “Register” has the meaning specified in Section 11.7. “Registrations” means authorizations, approvals, licenses, permits, certificates, registrations, listings, or exemptions of or issued by any governmental authority (including marketing approvals, investigational new drug applications, product recertifications, drug manufacturing establishment registration and product listing, pricing and reimbursement approvals, labeling approvals or their foreign equivalent) that are required for the research, development, manufacture, commercialization, distribution, marketing, storage, transportation, pricing, governmental authority reimbursement, use and sale of Products. “Regulatory Action” means an administrative or regulatory enforcement action, proceeding or investigation, warning letter, untitled letter, Form 483 or similar inspectional observations, other notice of violation letter, recall, seizure, Section 305 notice or other similar written communication, or consent decree, issued or required by the FDA or under the Public Health Laws, the NIH or a comparable governmental authority in any other regulatory jurisdiction. “Replimune UK” means Replimune Limited, a company incorporated in England and Wales with registered number 09496393 whose registered address is 69 Innovation Drive, Xxxxxx Xxxx, Xxxxxxxxxxx, XX00 0XX, Xxxxxx Xxxxxxx. “Required Lenders” means at any time, the holders of more than 50% of the sum of the aggregate unpaid principal amount of the Term Loan then outstanding. “Requirements of Law” means, with respect to any Person, collectively, the common law and all federal, state, provincial, local, foreign, multinational or international laws,

19 NY-2442286 statutes, codes, treaties, standards, rules and regulations, guidelines, ordinances, orders, judgments, writs, injunctions, decrees (including administrative or judicial precedents or authorities) and the interpretation or administration thereof by, and other determinations, directives, requirements or requests of, any governmental authority, in each case that are applicable to or binding upon such Person or any of its property or to which such Person or any of its property is subject. “Resolution Authority” means any body which has authority to exercise any Writedown and Conversion Powers. “Revenue Milestone” means the satisfaction of each of the following events: (a) no Default or Event of Default shall have occurred and be continuing and (b) Borrower shall have delivered evidence satisfactory to Agent (as determined by Agent in its sole discretion) that after the Closing Date and prior to November 30, 2025, Borrower has achieved at least Ninety-Five Million Dollars ($95,000,000) in T6M Net Product Revenue. “Sanctioned Country” shall mean, at any time, a country or territory which is the subject or target of any Sanctions. “Sanctioned Person” shall mean, at any time, (a) any Person listed in any Sanctions-related list of designated Persons maintained by the Office of Foreign Assets Control of the U.S. Department of the Treasury or the U.S. Department of State, or by the United Nations Security Council, the European Union or any EU member state, (b) any Person operating, organized or resident in a Sanctioned Country or (c) any Person controlled by any such Person. “Sanctions” shall mean economic or financial sanctions or trade embargoes imposed, administered or enforced from time to time by (a) the U.S. government, including those administered by the Office of Foreign Assets Control of the U.S. Department of the Treasury or the U.S. Department of State, or (b) the United Nations Security Council, the European Union or Her Majesty’s Treasury of the United Kingdom. “Secured Obligations” means Borrower’s obligations under this Agreement and any Loan Document, including any obligation to pay any amount now owing or later arising hereunder or thereunder. “Subordinated Indebtedness” means Indebtedness subordinated to the Secured Obligations in amounts and on terms and conditions reasonably satisfactory to Agent and subject to a subordination agreement in form and substance reasonably satisfactory to Agent. “Subsequent Financing” means the closing of any publicly-marketed equity issuance by Parent effected pursuant to a Registration Statement filed by Parent with the Securities and Exchange Commission and which becomes effective after the Closing Date. “Subsidiary” means an entity, whether corporate, partnership, limited liability company, joint venture or otherwise, in which Borrower owns or controls 50% or more of the outstanding voting securities, including each entity listed on Schedule 1 hereto.

20 NY-2442286 “T3M Net Product Revenue” means Net Product Revenue, measured on a trailing three-month basis as of the date of the most recently delivered monthly financial statements in accordance with Section 7.1(a). “T6M Net Product Revenue” means Net Product Revenue, measured on a trailing six-month basis as of the date of the most recently delivered monthly financial statements in accordance with Section 7.1(a). “Taxes” means all present or future taxes, levies, imposts, duties, deductions, withholdings (including backup withholding), assessments, fees or other charges imposed by any governmental authority, including any interest, additions to tax or penalties applicable thereto. “Term Commitment” means as to any Lender, the obligation of such Lender, if any, to make a Term Loan Advance to Borrower in a principal amount not to exceed the amount set forth under the heading “Term Commitment” opposite such Xxxxxx’s name on Schedule 1.1. “Term Loan Advance” means each Tranche 1 Advance, Tranche 2 Advance, Tranche 3 Advance, Tranche 4 Advance, Tranche 5 Advance, Tranche 6 Advance and any other Term Loan funds advanced under this Agreement. “Term Loan Cash Interest Rate” means for any day a per annum rate of interest equal to the greater of either (i) 7.25% and (ii) the Prime Rate plus 1.75%. “Term Loan PIK Interest Rate” means 1.50%. “Term Loan Maturity Date” means October 1, 2027; provided however, that if such day is not a Business Day, the Term Loan Maturity Date shall be the immediately preceding Business Day. “Trademark License” means any written agreement granting any right to use any Trademark or Trademark registration, now owned or hereafter acquired by Borrower or in which Borrower now holds or hereafter acquires any interest. “Trademarks” means all trademarks (registered, common law or otherwise) and any applications in connection therewith, including registrations, recordings and applications in the United States Patent and Trademark Office or in any similar office or agency of the United States of America, the United Kingdom, any State thereof or any other country or any political subdivision thereof. “Tranche 1” means the Advances pursuant to Section 2.2(a). “Tranche 2” means the Advances pursuant to Section 2.2(b). “Tranche 3” means the Advance pursuant to Section 2.2(c). “Tranche 3 Facility Charge” means zero point five percent (0.50%) of each Tranche 3 Advance, which is payable to the Lenders in accordance with Section 4.2(e).

21 NY-2442286 “Tranche 3 Milestone” means the satisfaction of each of the following events: (a) no Default or Event of Default shall have occurred and be continuing and (b) Parent shall have stated in Parent’s public filings with the Securities and Exchange Commission (as confirmed by Agent in its reasonable discretion) that it has received FDA acceptance of Borrower’s first BLA for either indications related to (i) the commercialization of RP1 for the treatment of patients with CSCC or (ii) the commercialization of RP1 for the treatment of patients with Melanoma who failed anti-PD1 therapy. “Tranche 4” means the Advances pursuant to Section 2.2(d). “Tranche 4 Facility Charge” means zero point five percent (0.50%) of each Tranche 4 Advance, which is payable to the Lenders in accordance with Section 4.2(f). “Tranche 5” means the Advances pursuant to Section 2.2(e). “Tranche 5 Facility Charge” means zero point five percent (0.50%) of each Tranche 5 Advance, which is payable to the Lenders in accordance with Section 4.2(g). “Tranche 6” means the Advances pursuant to Section 2.2(f). “Tranche 6 Facility Charge” means zero point five percent (0.50%) of each Tranche 6 Advance, which is payable to the Lenders in accordance with Section 4.2(h). “UCC” means the Uniform Commercial Code as the same is, from time to time, in effect in the State of New York; provided, that in the event that, by reason of mandatory provisions of law, any or all of the attachment, perfection or priority of, or remedies with respect to, Agent’s Lien on any Collateral is governed by the Uniform Commercial Code as the same is, from time to time, in effect in a jurisdiction other than the State of New York, then the term “UCC” shall mean the Uniform Commercial Code as in effect, from time to time, in such other jurisdiction solely for purposes of the provisions thereof relating to such attachment, perfection, priority or remedies and for purposes of definitions related to such provisions. “Unrestricted Cash” means unrestricted Cash of Borrower maintained in Deposit Accounts or other accounts in Borrower’s name subject to an Account Control Agreement in favor of Agent. “UK” means the United Kingdom. “UK Bail-In Legislation” means (to the extent that the United Kingdom is not an EEA Member Country which has implemented, or implements, Article 55 BRRD) Part I of the United Kingdom Banking Act 2009 and any other law or regulation applicable in the United Kingdom relating to the resolution of unsound or failing banks, investment firms or other financial institutions or their affiliates (otherwise than through liquidation, administration or other insolvency proceedings). “UK PSC Loan Party” means a company incorporated in England and Wales who is required to maintain a PSC Register and whose shares are pledged as Collateral.

22 NY-2442286 “UK Withholding Tax” means any Taxes imposed by way of deduction or withholding by the UK. “U.S. Person” means any Person that is a “United States person” as defined in Section 7701(a)(30) of the Code. “Write-down and Conversion Powers” means: (a) in relation to any Bail-In Legislation described in the EU Bail-In Legislation Schedule from time to time, the powers described as such in relation to that Bail-In Legislation in the EU Bail-In Legislation Schedule; (b) in relation to any other applicable Bail-In Legislation: 14 (i) any powers under that Bail-In Legislation to cancel, transfer or dilute shares issued by a person that is a bank or investment firm or other financial institution or affiliate of a bank, investment firm or other financial institution, to cancel, reduce, modify or change the form of a liability of such a person or any contract or instrument under which that liability arises, to convert all or part of that liability into shares, securities or obligations of that person or any other person, to provide that any such contract or instrument is to have effect as if a right had been exercised under it or to suspend any obligation in respect of that liability or any of the powers under that Bail-In Legislation that are related to or ancillary to any of those powers; and (ii) any similar or analogous powers under that Bail-In Legislation; and (c) in relation to any UK Bail-In Legislation: (i) any powers under that UK Bail-In Legislation to cancel, transfer or dilute shares issued by a person that is a bank or investment firm or other financial institution or affiliate of a bank, investment firm or other financial institution, to cancel, reduce, modify or change the form of a liability of such a person or any contract or instrument under which that liability arises, to convert all or part of that liability into shares, securities or obligations of that person or any other person, to provide that any such contract or instrument is to have effect as if a right had been exercised under it or to suspend any obligation in respect of that liability or any of the powers under that UK Bail-In Legislation that are related to or ancillary to any of those powers; and (ii) any similar or analogous powers under that UK Bail-In Legislation. 1.2 The following terms are defined in the Sections or subsections referenced opposite such terms: Defined Term Section

25 NY-2442286 Tranche 3 Milestone, additional Term Loan Advances in an aggregate principal amount up to Twenty-Five Million Dollars ($25,000,000), in minimum draws of at least Ten Million Dollars ($10,000,000) (or if less than Ten Million Dollars ($10,000,000), the remaining amount of Term Loan Advances available to be drawn pursuant to this Section 2.2(c)) (each, a “Tranche 3 Advance”); provided that Borrower shall not be permitted to request more than two (2) Tranche 3 Advances in total. (d) Tranche 4 Advance. Subject to the terms and conditions of this Agreement and the achievement of the Approval Milestone, Borrower may request, and the Lenders shall severally (and not jointly) make, in each case on or prior to the earlier of (i) March 31, 2025 or (ii) sixty (60) days following the achievement of the Approval Milestone, additional Term Loan Advances in an aggregate principal amount up to Thirty-Five Million Dollars ($35,000,000), in minimum draws of at least Ten Million Dollars ($10,000,000) (or if less than Ten Million Dollars ($10,000,000), the remaining amount of Term Loan Advances available to be drawn pursuant to this Section 2.2(d)) (each, a “Tranche 4 Advance”); provided that Borrower shall not be permitted to request more than two (2) Tranche 4 Advances in total. (e) Tranche 5 Advance. Subject to the terms and conditions of this Agreement and the achievement of the Revenue Milestone, Borrower may request, and the Lenders shall severally (and not jointly) make, in each case on or prior to the earlier of (i) December 15, 2025 or (ii) sixty (60) days following the achievement of the Revenue Milestone, additional Term Loan Advances in an aggregate principal amount up to Forty Million Dollars ($40,000,000), in minimum draws of at least Ten Million Dollars ($10,000,000) (or if less than Ten Million Dollars ($10,000,000), the remaining amount of Term Loan Advances available to be drawn pursuant to this Section 2.2(e)) (each, a “Tranche 5 Advance”); provided that Borrower shall not be permitted to request more than two (2) Tranche 5 Advances in total. (f) Tranche 6 Advance. Subject to the terms and conditions of this Agreement and conditioned on approval by the Lenders’ respective investment committees in their sole and unfettered discretion, Borrower may request, and the Lenders shall severally (and not jointly) make, in each case prior to the Amortization Date, additional Term Loan Advances in an aggregate principal amount of up to Twenty-Five Million Dollars ($25,000,000), in minimum draws of at least Ten Million Dollars ($10,000,000) (or if less than Ten Million Dollars ($10,000,000), the remaining amount of Term Loan Advances available to be drawn pursuant to this Section 2.2(f)) (each, a “Tranche 6 Advance”); provided that Borrower shall not be permitted to request more than two (2) Tranche 6 Advances in total. The aggregate outstanding Term Loan Advances shall not exceed the Maximum Term Loan Amount. Each Term Loan Advance of each Lender shall not exceed its respective Term Commitment. (g) Advance Request. To obtain a Term Loan Advance, Borrower shall complete, sign and deliver an Advance Request (at least five (5) Business Days before the Advance Date other than the Closing Date, which shall be at least one (1) Business

27 NY-2442286 above later than the date that is three (3) Business Days prior to such payment date, Borrower shall pay to the Lenders such amount of periodic obligations in full in immediately available funds on the date that is three (3) Business Days after the date on which the Lenders or Agent notifies Borrower of such; provided, further, that, with respect to clause (ii) above, in the event that the Lenders or Agent informs Borrower that the Lenders will not initiate a debit entry to Xxxxxxxx’s account for certain amount of such out-of-pocket legal fees and costs incurred by Agent or the Lenders, Borrower shall pay to the Lenders such amount in full in immediately available funds within three (3) Business Days. 2.3 Maximum Interest. Notwithstanding any provision in this Agreement or any other Loan Document, it is the parties’ intent not to contract for, charge or receive interest at a rate that is greater than the maximum rate permissible by law that a court of competent jurisdiction shall deem applicable hereto (the “Maximum Rate”). If a court of competent jurisdiction shall finally determine that Borrower has actually paid to the Lenders an amount of interest in excess of the amount that would have been payable if all of the Secured Obligations had at all times borne interest at the Maximum Rate, then such excess interest actually paid by Borrower shall be applied as follows: first, to the payment of the Secured Obligations consisting of the outstanding principal; second, after all principal is repaid, to the payment of the Lenders’ accrued interest, costs, expenses, professional fees and any other Secured Obligations; and third, after all Secured Obligations are repaid, the excess (if any) shall be refunded to Borrower. 2.4 Default Interest. In the event any payment is not paid on the scheduled payment date, an amount equal to four percent (4%) of the past due amount shall be payable on demand. In addition, upon the occurrence and during the continuation of an Event of Default hereunder, all Secured Obligations, including principal, interest, compounded interest, and professional fees, shall bear interest at a rate per annum equal to the rate set forth in Section 2.2(h), plus four percent (4%) per annum. In the event any interest is not paid when due hereunder, delinquent interest shall be added to principal and shall bear interest on interest, compounded at the rate set forth in Section 2.2(h) or Section 2.4, as applicable. 2.5 Prepayment. At its option, upon at least five (5) Business Days’ prior written notice to Agent, Borrower may prepay all or a portion of the outstanding Advances by paying the entire principal balance (or such portion thereof), all accrued and unpaid interest thereon, together with a prepayment charge equal to the following percentage of the Advance amount being prepaid: with respect to each Advance (which Advance amount shall include, for the avoidance of doubt, any principal that has been added to the principal balance of such Advance pursuant to Section 2.2(h)(ii)), if such Advance amounts are prepaid in any of the first twelve (12) months following the Closing Date, 3.00%; after twelve (12) months but on or prior to twenty four (24) months following the Closing Date, 2.00%; and thereafter, 1.00% (each, a “Prepayment Charge”); provided that each prepayment shall be in a minimum principal amount of Ten Million Dollars ($10,000,000) or, if less, the remaining outstanding principal amount of the Advances. If at any time Borrower elects to make a prepayment, and at such time, there are outstanding Advances under multiple Tranches, the Prepayment Charge shall be determined by applying the amount of such prepayment in the following order: first, to the outstanding principal amount (and accrued but unpaid interest thereon) of Advances outstanding under the Tranche with the latest initial funding date; second, to the outstanding principal amount (and accrued but

28 NY-2442286 unpaid interest thereon) of Advances outstanding under the Tranche with the next latest initial funding date and so on until the entire principal balance of all Advances made hereunder (and all accrued but unpaid interest thereon) is paid in full. Xxxxxxxx agrees that the Prepayment Charge is a reasonable calculation of the Lenders’ lost profits in view of the difficulties and impracticality of determining actual damages resulting from an early repayment of the Advances. Borrower shall prepay the outstanding amount of all principal and accrued interest through the prepayment date and the Prepayment Charge upon the occurrence of a Change in Control or any other prepayment hereunder. Notwithstanding the foregoing, Agent and the Lenders hereby waive the Prepayment Charge if Agent and the Lenders or any Affiliate thereof (in their sole and absolute discretion) provide any refinancing of the Advances prior to the Term Loan Maturity Date. For the avoidance of doubt, if a payment hereunder becomes due and payable on a day that is not a Business Day, the due date thereof shall be the immediately succeeding Business Day. 2.6 End of Term Charge. (a) On any date that Borrower partially prepays the outstanding Secured Obligations pursuant to Section 2.5 (other than, for the avoidance of doubt, any partial prepayment that would result in all remaining outstanding Secured Obligations being prepaid in full), Borrower shall pay the Lenders a charge of equal to four point ninety- five percent (4.95%) of the aggregate principal amount of such Term Loan Advances being prepaid. (b) On the earliest to occur of (i) the Term Loan Maturity Date, (ii) the date that Borrower prepays the outstanding Secured Obligations (other than any inchoate indemnity obligations and any other obligations which, by their terms, are to survive the termination of this Agreement) in full, or (iii) the date that the Secured Obligations become due and payable (including by acceleration of the Secured Obligations during an Event of Default) pursuant to the terms of this Agreement, Borrower shall pay the Lenders a charge equal to (i) four point ninety-five percent (4.95%) of the aggregate original principal amount of the Term Loan Advances made hereunder minus (ii) the aggregate amount of payments made pursuant to Section 2.6(a) (collectively, with any charge required to be paid pursuant to Section 2.6(a), the “End of Term Charge”). (c) Notwithstanding the required payment date of such End of Term Charge, the applicable pro rata portion of the End of Term Charge with respect to any Advance shall be deemed earned by the Lenders as of the applicable Advance Date. For the avoidance of doubt, if a payment hereunder becomes due and payable on a day that is not a Business Day, the due date thereof shall be the immediately preceding Business Day. 2.7 Pro Rata Treatment. Each payment (including prepayment) on account of any fee and any reduction of the Term Loan shall be made pro rata according to the Term Commitments of the relevant Lender. 2.8 Taxes; Increased Costs. Borrower, the Agent and the Lenders each hereby agree to the terms and conditions set forth on Addendum 1 attached hereto.

31 NY-2442286 transactions contemplated hereby or to create and perfect the Liens of Agent with respect to all Collateral, in all cases in form and substance reasonably acceptable to Agent; (b) a legal opinion of Agent’s U.K. counsel in form and substance reasonably acceptable to Agent; (c) certified copy of resolutions of each Borrower’s Board of Directors (and shareholder, with respect to Replimune UK) evidencing (i) approval of the Loan and other transactions evidenced by the Loan Documents (ii) authorizing a specified person or persons to execute the Loan Documents to which it is a party on its behalf; (iii) authorizing a specified person or persons, on its behalf, to sign and/or dispatch all documents and notices (including, if relevant, any Advance Request or other relevant notice) to be signed and/or dispatched by it under or in connection with the Loan Documents to which it is a party; and (iv) (A) acknowledging that the Board of Directors are acting for a proper purpose and that the Loan Documents are in the best interests of that Borrower and for its commercial benefit; and (B) acknowledging that the relevant Borrower was solvent and there were reasonable grounds to expect that the relevant Borrower would continue to be solvent after executing and complying with its obligations under the Loan Documents; (d) certified copies of the constitutional documents and (as applicable) the Bylaws, as amended through the Closing Date, of Borrower; (e) other than with respect to Replimune UK, a certificate of good standing for Borrower from its state of incorporation and similar certificates from all other jurisdictions in which it does business and where the failure to be qualified would reasonably be expected to have a Material Adverse Effect; (f) a certificate of a director of Replimune UK confirming that guaranteeing or securing the Loan would not cause any guaranteeing or similar limit binding on Replimune UK to be exceeded and certifying that each copy document relating to it specified in this Section 4, is correct, complete and the original of such copy document, is in full force and effect and has not been amended or superseded as at a date no earlier than the Closing Date; (g) a perfection certificate (the “Perfection Certificate”) of Borrower, together with duly executed signatures thereto; (h) certified copies, dated as of a recent date, of searches for financing statements filed in the central filing office of the State of Delaware and with the Companies House; (i) in respect to any UK PSC Loan Party, a copy of the PSC Register together with confirmation from an authorized signatory that no “warning notice” or “restrictions notice” (in each case as defined in Schedule 1B of the Companies Act 2006) has been issued in respect of the shares pledged as Collateral;

32 NY-2442286 (j) current searches at the U.S. Patent and Trademark Office or the U.S. Copyright Office (and the equivalent in the UK), as applicable, listing issued or pending Current Company IP of Borrower; (k) payment of the Initial Facility Charge and reimbursement of Agent’s and the Lenders’ current expenses reimbursable pursuant to this Agreement, which amounts may be deducted from the initial Advance, it being understood and agreed that the Due Diligence Fee previously paid shall be applied to the payment of the non-legal transaction costs and due diligence expenses (l) all certificates of insurance, endorsements and copies of each insurance policy required hereunder; and (m) such other documents as Agent may reasonably request. 4.2 All Advances. On each Advance Date: (a) Agent shall have received (i) an Advance Request for the relevant Advance as required by Section 2.2(g), each duly executed by Xxxxxxxx’s Chief Executive Officer or Chief Financial Officer, and (ii) any other documents related to Borrower’s business or financial condition that Agent, in good faith, may reasonably request promptly upon or prior to its receipt of such Advance Request, so long as such request does not result in the intentional delay or denial of the relevant Advance without cause. (b) The representations and warranties set forth in this Agreement shall be true and correct in all material respects on and as of the Advance Date with the same effect as though made on and as of such date, except to the extent such representations and warranties expressly relate to an earlier date. (c) At the time of and immediately after such Advance no Default or Event of Default shall have occurred and be continuing. (d) With respect to the Tranche 3 Advance, Borrower shall have paid the Tranche 3 Facility Charge (which amount may be deducted from such Tranche 3 Advance). (e) With respect to any Tranche 4 Advance, Borrower shall have paid the Tranche 4 Facility Charge (which amount may be deducted from such Tranche 4 Advance). (f) With respect to any Tranche 5 Advance, Borrower shall have paid the Tranche 5 Facility Charge (which amount may be deducted from such Tranche 5 Advance). (g) With respect to any Tranche 6 Advance, Borrower shall have paid the Tranche 6 Facility Charge (which amount may be deducted from such Tranche 6 Advance).

34 NY-2442286 the knowledge of Xxxxxxxx, threatened against or affecting Borrower or its property, that is reasonably expected to result in a Material Adverse Effect. 5.6 Laws. Neither Borrower nor any of its Subsidiaries is in violation of any law, rule or regulation, or in default with respect to any judgment, writ, injunction or decree of any governmental authority, where such violation or default is reasonably expected to result in a Material Adverse Effect. Borrower is not in default in any manner under any provision of any agreement or instrument evidencing material Indebtedness, or any other material agreement to which it is a party or by which it is bound. Neither Borrower nor any of its Subsidiaries is an “investment company” or a company “controlled” by an “investment company” under the Investment Company Act of 1940, as amended. Neither Borrower nor any of its Subsidiaries is engaged as one of its important activities in extending credit for margin stock (under Regulations X, T and U of the Federal Reserve Board of Governors). Borrower and each of its Subsidiaries has complied in all material respects with the Federal Fair Labor Standards Act. Neither Borrower nor any of its Subsidiaries is a “holding company” or an “affiliate” of a “holding company” or a “subsidiary company” of a “holding company” as each term is defined and used in the Public Utility Holding Company Act of 2005. Neither Borrower’s nor any of its Subsidiaries’ properties or assets has been used by Borrower or such Subsidiary or, to Borrower’s Knowledge, by previous Persons, in disposing, producing, storing, treating, or transporting any hazardous substance other than in material compliance with applicable laws. Borrower and each of its Subsidiaries has obtained all consents, approvals and authorizations of, made all declarations or filings with, and given all notices to, all Governmental Authorities that are necessary to continue their respective businesses as currently conducted. None of Borrower, any of its Subsidiaries, nor, to Borrower’s knowledge, any of Borrower’s or its Subsidiaries’ Affiliates or any of their respective agents, acting or benefiting in any capacity in connection with the transactions contemplated by this Agreement is (i) in violation of any Anti Terrorism Law, (ii) engaging in or conspiring to engage in any transaction that evades or avoids, or has the purpose of evading or avoiding or attempts to violate, any of the prohibitions set forth in any Anti Terrorism Law, or (iii) is a Blocked Person. None of Borrower, any of its Subsidiaries, nor to the knowledge of Borrower, any of their Affiliates or agents acting or benefiting in any capacity in connection with the transactions contemplated by this Agreement, (x) conducts any business or engages in making or receiving any contribution of funds, goods or services to or for the benefit of any Blocked Person, or (y) deals in, or otherwise engages in any transaction relating to, any property or interest in property blocked pursuant to Executive Order No. 13224, any similar executive order or other Anti Terrorism Law. None of the funds to be provided under this Agreement will be used, directly or indirectly, (a) for any activities in violation of any applicable anti-money laundering, economic sanctions and anti- bribery laws and regulations or (b) for any payment to any governmental official or employee, political party, official of a political party, candidate for political office, or anyone else acting in an official capacity, in order to obtain, retain or direct business or obtain any improper advantage, in violation of the United States Foreign Corrupt Practices Act of 1977, as amended. 5.7 Information Correct and Current. No information, report, Advance Request, financial statement, exhibit or schedule (other than financial or business projections or forecasts)

35 NY-2442286 furnished, by or on behalf of Borrower to Agent in connection with any Loan Document or included therein or delivered pursuant thereto, when taken as a whole, contained, contains or will contain any material misstatement of fact or, when taken together with all other such information or documents, omitted, omits or will omit to state any material fact necessary to make the statements therein, in the light of the circumstances under which they were, are or will be made, not materially misleading at the time such statement was made or deemed made. Additionally, any and all financial or business projections or forecasts provided by Borrower to Agent, whether prior to or after the Closing Date, shall be (i) provided in good faith and based on the most current data and information available to Borrower, and (ii) the most current of such projections or forecasts provided to Borrower’s Board of Directors; it being understood by the Agent and the Lender that such projections or forecasts as to future events (x) are not to be viewed as facts, (y)(1) are subject to significant uncertainties and contingencies, many of which are beyond the control of Borrower, (2) no assurance is given by Borrower that the results forecast in any such projections or forecasts will be realized, and (3) the actual results during the period or periods covered by any such projections or forecasts may differ from the forecast results set forth in such projections or forecasts and such differences may be material, and (z) are not a guarantee of performance. 5.8 Tax Matters. Except as described on Schedule 5.8, (a) Borrower and its Subsidiaries have filed all federal and state income Tax returns and other material Tax returns that they are required to file, (b) Borrower and its Subsidiaries have duly paid all federal and state income Taxes and other material Taxes or installments thereof that they are required to pay, except Taxes being contested in good faith by appropriate proceedings and for which Borrower and its Subsidiaries maintain adequate reserves in accordance with GAAP, and (c) to the best of Borrower’s knowledge, no proposed or pending Tax assessments, deficiencies, audits or other proceedings with respect to Borrower or any Subsidiary have had, or would reasonably be expected to have, individually or in the aggregate, a Material Adverse Effect. 5.9 Current Company IP Claims. Borrower is the sole owner of, or otherwise has the right to use, the Current Company IP material to Borrower’s business. Except as described on Schedule 5.9, (i) to the knowledge of any Borrower, each of the material Copyrights, Trademarks and Patents is valid and enforceable, (ii) no material part of the Current Company IP has been judged invalid or unenforceable, in whole or in part, and (iii) no claim has been made to Borrower that any material part of the Current Company IP violates the rights of any third party. Section 5 of the Perfection Certificate contains a true, correct and complete list of each of Borrower’s Patents, registered Trademarks, registered Copyrights, and material agreements under which Borrower licenses Current Company IP from third parties (other than shrink-wrap software licenses), together with application or registration numbers, as applicable, owned by Borrower or any Subsidiary, in each case as of the Closing Date. Borrower is not in material breach of, nor has Borrower failed to perform any material obligations under, any of the foregoing contracts, licenses or agreements and, to Borrower’s knowledge, no third party to any such contract, license or agreement is in material breach thereof or has failed to perform any material obligations thereunder. 5.10 Current Company IP.

36 NY-2442286 (a) A true, correct and complete list of each pending, registered or in-licensed Intellectual Property that, individually or taken together with any other such Intellectual Property, is material to the business of Borrower and its Subsidiaries, taken as a whole, relating to the research, development, manufacture, production, use, commercialization, marketing, importing, storage, transport, offer for sale, distribution or sale of the Products, and is owned or co-owned by or exclusively or non-exclusively licensed to Borrower or any of its Subsidiaries (collectively, the “Current Company IP”), including its name/title, current owner or co-owners (including ownership interest), registration, patent or application number, and registration or application date, issued or filed in the United States of America, is set forth on Schedule 5.10(a). Except as set forth on Schedule 5.10(a), (i) (A) to the knowledge of any Borrower, each item of owned Current Company IP is valid, subsisting and (other than with respect to Patent applications) enforceable and no such item of Current Company IP has lapsed, expired, been cancelled or invalidated or become abandoned or unenforceable, and (B) no written notice has been received challenging the inventorship or ownership, or relating to any lapse, expiration, invalidation, abandonment or unenforceability, of any such item of Current Company IP, and (ii) (A) each such item of Current Company IP which is licensed from another Person is valid, subsisting and enforceable and no such item of Current Company IP has lapsed, expired, been canceled or invalidated, or become abandoned or unenforceable, and (B) no written notice has been received challenging the inventorship or ownership, or relating to any lapse, expiration, invalidation, abandonment or unenforceability, of any such item of Current Company IP. To the knowledge of any Borrower, there are no published Patents, Patent applications, articles or prior art references (other than prior art cited in any of Xxxxxxxx’s patent prosecution) that would reasonably be expected to materially adversely affect the exploitation of the Products. Except as set forth on Schedule 5.10(a), (x) each Person who has or has had any rights in or to owned Current Company IP or any trade secrets owned by Borrower or any of its Subsidiaries, including each inventor named on the Patents within such owned Current Company IP filed by Borrower or any of its Subsidiaries, has executed an agreement assigning his, her or its entire right, title and interest in and to such owned Current Company IP and such trade secrets, and the inventions, improvements, discoveries, writings, works of authorship, information and other intellectual property embodied, described or claimed therein, to the stated owner thereof, and (y) no such Person has any contractual or other obligation that would preclude or conflict with such assignment or the exploitation of the Products or entitle such Person to ongoing payments. (b) (i) Borrower or any of its Subsidiaries possesses valid title to the Current Company IP for which it is listed as the owner or co-owner, as applicable, on Schedule 5.10(a); and (ii) there are no Liens on any Current Company IP. (c) There are no maintenance, annuity or renewal fees that are currently overdue beyond their allotted grace period for any of the Current Company IP which is owned or exclusively licensed to Borrower or any of its Subsidiaries, nor have any applications or registrations therefore lapsed or become abandoned, been cancelled or expired. There are no maintenance, annuity or renewal fees that are currently overdue beyond their allotted grace period for any of the Current Company IP which is non-

37 NY-2442286 exclusively licensed to Borrower or any of its Subsidiaries, nor have any applications or registrations therefor lapsed or become abandoned, been cancelled or expired. (d) There are no unpaid fees or royalties under any material agreements that have become due, or are expected to become overdue. Each material agreement is in full force and effect and is legal, valid, binding and enforceable in accordance with its respective terms, except as may be limited by bankruptcy, insolvency, reorganization, moratorium or similar laws relating to or limiting creditors’ rights generally or by equitable principles relating to enforceability. Neither Borrower nor any of its Subsidiaries, as applicable, is in breach of or default in any manner that could reasonably be expected to materially affect the Products under any material agreement to which it is a party or may otherwise be bound, and no circumstances or grounds exists that would give rise to a claim of breach or right of rescission, termination, non-renewal, revision or amendment of any of the material agreements, including the execution, delivery and performance of this Agreement and the other Loan Documents. (e) No payments by Borrower or any of its Subsidiaries are due to any other Person in respect of the Current Company IP, other than pursuant to the material agreements and those fees payable to patent offices in connection with the prosecution and maintenance of the Current Company IP, any applicable taxes and associated attorney fees. (f) Neither Borrower nor any of its Subsidiaries has undertaken or omitted to undertake any acts, and to no circumstance or grounds exist, that would invalidate or render unenforceable (i) any Current Company IP in any manner that could reasonably be expected to materially adversely affect the Products, or (ii) in the case of Current Company IP owned or co-owned or exclusively or non-exclusively licensed by Borrower or any of its Subsidiaries, in each case except as set forth on Schedule 5.10(f), Borrower’s or Subsidiary’s entitlement to own or license and exploit such Current Company IP. (g) Except as described on Schedule 5.9(g) or in the most recently delivered Compliance Certificate in accordance with Section 7.1(d), there is no requested, filed pending, decided or settled opposition, interference proceeding, reissue proceeding, reexamination proceeding, inter-partes review proceeding, post-grant review proceeding, cancellation proceeding, injunction, litigation, paragraph IV patent certification or lawsuit under the Xxxxx-Xxxxxx Act, hearing, investigation, complaint, arbitration, mediation, demand, International Trade Commission investigation, decree or any other dispute, disagreement, or claim, in each case alleged in writing to Borrower or any of its Subsidiaries (collectively referred to hereinafter as “Specified Disputes”), nor to the knowledge of any Borrower, has any such Specified Dispute been threatened in writing, in each case challenging the legality, validity, enforceability or ownership of any Current Company IP, in each case that would have a material adverse effect on the Products. (h) In each case where an issued Patent within the Current Company IP is owned or co-owned by Borrower or any of its Subsidiaries by assignment, the assignment has been duly recorded with the U.S. Patent and Trademark Office.

38 NY-2442286 (i) Except as set forth on Schedule 5.10(i) there are no pending or, to the knowledge of any Borrower, threatened claims against Borrower or any of its Subsidiaries alleging (i) that any research, development, manufacture, production, use, commercialization, marketing, importing, storage, transport, offer for sale, distribution or sale of the Products in the United States of America infringes or violates (or in the past infringed or violated) the rights of any third parties in or to any Intellectual Property (“Third Party IP”) or constitutes a misappropriation of (or in the past constituted a misappropriation of) any Third Party IP, or (ii) that any Current Company IP is invalid or unenforceable. (j) Except as set forth on Schedule 5.10(j), the manufacture, production, use, commercialization, marketing, importing, storage, transport, offer for sale, distribution or sale of the Products does not, to the knowledge of any Borrower, infringe or violate (or in the past infringed or violated) any issued or registered Third Party IP (including any issued Patent within the Third Party IP) or constitute a misappropriation of (or in the past constituted a misappropriation of) any Third Party IP, in each case, in a manner that would reasonably be expected to materially adversely affect the exploitation of the Products. (k) Except as set forth on Schedule 5.10(k), there are no settlements, covenants not to sue, consents, judgments, orders or similar obligations which: (i) restrict the rights of the Borrower or any of its Subsidiaries to use any Intellectual Property relating to the research, development, manufacture, production, use, commercialization, marketing, importing, storage, transport, offer for sale, distribution or sale of the Products (in order to accommodate any Third Party IP or otherwise), or (ii) permit any third parties to use any Current Company IP. (l) Except as set forth on Schedule 5.10(l), to the knowledge of any Borrower (i) there is no, nor has there been any, infringement or violation by any Person of any of the Current Company IP or the rights therein, and (ii) there is no, nor has there been any, misappropriation by any Person of any Current Company IP or the subject matter thereof. (m) Borrower and each of its Subsidiaries has taken commercially reasonable measures customary in the biopharmaceutical industry to protect the confidentiality of all trade secrets owned by Borrower or any of its Subsidiaries or used or held for use by Borrower or any of its Subsidiaries, in each case relating to the research, development, manufacture, production, use, commercialization, marketing, importing, storage, transport, offer for sale, distribution or sale of the Products. (n) [reserved]. (o) Except as described on Schedule 5.10(o), Borrower has all material rights with respect to Intellectual Property necessary or other than would not be expected to cause a Material Adverse Effect, with respect to Current Company IP material in the operation or conduct of Xxxxxxxx’s business as currently conducted and proposed to be conducted by Xxxxxxxx. Without limiting the generality of the foregoing, and in the case of Licenses, except for restrictions that are unenforceable under Article 9 of the UCC,

42 NY-2442286 (b) as soon as practicable (and in any event within 45 days) after the end of each calendar quarter, unaudited interim and year-to-date financial statements as of the end of such calendar quarter (prepared on a consolidated and consolidating basis, if applicable), including balance sheet and related statements of income and cash flows accompanied by a report detailing any material contingencies (including the commencement of any material litigation by or against Borrower) or any other occurrence that would reasonably be expected to have a Material Adverse Effect, certified by Xxxxxx’s Chief Executive Officer or Chief Financial Officer to the effect that they have been prepared in accordance with GAAP, except (i) for the absence of footnotes, and (ii) that they are subject to normal year end adjustments; (c) as soon as practicable (and in any event within ninety (90) days) after the end of each fiscal year, audited financial statements as of the end of such year (prepared on a consolidated and consolidating basis, if applicable), including balance sheet and related statements of income and cash flows, and setting forth in comparative form the corresponding figures for the preceding fiscal year, certified without qualification (other than any going concern qualification) by a firm of independent certified public accountants selected by Parent and reasonably acceptable to Agent (it being understood that PricewaterhouseCoopers is reasonably acceptable to Agent), accompanied by any final management report from such accountants; (d) as soon as practicable (and in any event within 30 days) after the end of each month, a Compliance Certificate in the form of Exhibit E; (e) as soon as practicable (and in any event within 7 days) after the end of each month, a report showing agings of accounts receivable and accounts payable; (f) promptly after the sending or filing thereof, as the case may be, copies of any proxy statements, financial statements or reports that Borrower has made available to holders of its preferred stock and copies of any regular, periodic and special reports or registration statements that Borrower files with the Securities and Exchange Commission or any governmental authority that may be substituted therefor, or any national securities exchange; (g) promptly after the delivery thereof to its directors, copies of all notices, minutes, consents and other materials that Borrower provides to its directors in connection with meetings of the Board of Directors, provided that in all cases Borrower may exclude (x) confidential compensation information, (y) information that is subject to attorney/client privilege, and (z) materials that are reasonably related to Borrower’s strategy, negotiating position or other matters materially relating to this Agreement or any other Loan Documents or any permitted refinancings thereof; (h) financial and business projections promptly following their approval by Parent’s Board of Directors, and in any event, within 90 days after the end of Parent’s fiscal year, as well as budgets, operating plans and other financial information reasonably requested by Agent; and

43 NY-2442286 (i) immediate notice if Borrower or any Subsidiary has knowledge that Borrower, or any Subsidiary or Affiliate of Borrower, is listed on the OFAC Lists or (a) is convicted on, (b) pleads nolo contendere to, (c) is indicted on, or (d) is arraigned and held over on charges involving money laundering or predicate crimes to money laundering. Borrower shall not make any change in its (a) accounting policies or reporting practices (other than changes required by GAAP), or (b) fiscal years or fiscal quarters. The fiscal year of Borrower shall end on March 31. The executed Compliance Certificate may be sent via email to Agent at xxxxx@xxxx.xxx. Except as specified below, all Financial Statements required to be delivered pursuant to clauses (a), (b) and (c) shall be sent via e-mail to xxxxxxxxxxxxxxxxxxx@xxxx.xxx with a copy to xxxxx@xxxx.xxx, xxxxxx@xxxx.xxx, xxxxxx@xxxx.xxx and xxxxxx@xxxx.xxx, provided, that if e- mail is not available or sending such Financial Statements via e-mail is not possible, they shall be faxed to Agent at: (000) 000-0000, attention Account Manager: Replimune Group, Inc. Notwithstanding the foregoing, documents required to be delivered under Sections 7.1(a), (b), (c) or (f) (to the extent any such documents are included in materials otherwise filed with the SEC) may be delivered electronically and if so delivered, shall be deemed to have been delivered on the date on which Borrower makes such documents publicly available. 7.2 Management Rights. Borrower shall permit any representative that Agent or the Lenders authorizes, including its attorneys and accountants, to inspect the Collateral and examine and make copies and abstracts of the books of account and records of Borrower at reasonable times and upon reasonable notice during normal business hours; provided, however, that so long as no Event of Default has occurred and is continuing, such examinations shall be limited to no more often than once per fiscal year. In addition, any such representative shall have the right to meet with management and officers of Xxxxxxxx to discuss such books of account and records. In addition, Agent or the Lenders shall be entitled at reasonable times and intervals to consult with and advise the management and officers of Borrower concerning significant business issues affecting Borrower. Such consultations shall not unreasonably interfere with Xxxxxxxx’s business operations. The parties intend that the rights granted Agent and the Lenders shall constitute “management rights” within the meaning of 29 C.F.R. Section 2510.3-101(d)(3)(ii), but that any advice, recommendations or participation by Agent or the Lenders with respect to any business issues shall not be deemed to give Agent or the Lenders, nor be deemed an exercise by Agent or the Lenders of, control over Xxxxxxxx’s management or policies. 7.3 Further Assurances. Borrower shall from time to time execute, deliver and file, alone or with Agent, any financing statements, security agreements, collateral assignments, notices, control agreements, promissory notes or other documents to perfect, give the highest priority to Agent’s Lien on the Collateral or otherwise evidence Agent’s rights herein. Borrower shall from time to time procure any instruments or documents as may be reasonably requested by Agent, and take all further action that may be necessary, or that Agent may reasonably request, to perfect and protect the Liens granted hereby and thereby. In addition, and for such purposes only, Xxxxxxxx hereby authorizes Agent to execute and deliver on behalf of Xxxxxxxx and to file such financing statements (including an indication that the financing statement covers “all assets

44 NY-2442286 or all personal property” of Borrower in accordance with Section 9-504 of the UCC), collateral assignments, notices, control agreements, security agreements and other documents without the signature of Borrower either in Agent’s name or in the name of Agent as agent and attorney-in- fact for Xxxxxxxx. Xxxxxxxx shall protect and defend Xxxxxxxx’s title to the Collateral and Agent’s Lien thereon against all Persons claiming any interest adverse to Borrower or Agent other than Permitted Liens. 7.4 Indebtedness. Borrower shall not create, incur, assume, guarantee or be or remain liable with respect to any Indebtedness, or permit any Subsidiary so to do, other than Permitted Indebtedness, or prepay any Indebtedness or take any actions which impose on Borrower an obligation to prepay any Indebtedness, except for (a) the conversion of Indebtedness into equity securities and the payment of cash in lieu of fractional shares in connection with such conversion, (b) purchase money Indebtedness or Indebtedness in respect of capital leases permitted hereunder pursuant to its then applicable payment schedule, (c) prepayment by any Subsidiary of (i) inter-company Indebtedness owed by such Subsidiary to any Borrower, or (ii) if such Subsidiary is not a Borrower, intercompany Indebtedness owed by such Subsidiary to another Subsidiary that is not a Borrower or (d) as otherwise permitted hereunder or approved in writing by Agent. Notwithstanding anything to the contrary in the foregoing, the issuance of, performance of obligations under (including any payments of interest), and conversion, exchange, exercise, repurchase, redemption (including, for the avoidance of doubt, a required repurchase in connection with the redemption of Permitted Convertible Debt upon satisfaction of a condition related to the stock price of the Common Stock), settlement or early termination or cancellation of (whether in whole or in part and including by netting or set-off) (in each case, whether in cash, Common Stock, following a merger event or other change of the Common Stock, other securities or property), or the satisfaction of any condition that would permit or require any of the foregoing, any Permitted Convertible Debt shall not constitute a prepayment of Indebtedness by Borrower for the purposes of this Section 7.4; provided that principal payments in cash (other than cash in lieu of fractional shares) shall only be allowed if the Redemption Conditions are satisfied in respect of such payment and at all times after such payment. 7.5 Collateral. Borrower shall at all times keep the Collateral and the Company IP and all other property and assets used in Borrower’s business or in which Borrower now or hereafter holds any interest free and clear from any Liens whatsoever (other than Permitted Liens), and shall give Agent prompt written notice of (a) any legal process affecting the Collateral, the Company IP or such other property and assets in an aggregate amount greater than $1,000,000 at any time, or (b) any Liens thereon (other than Permitted Liens), provided however, that the Collateral and such other property and assets may be subject to Permitted Liens except that there shall be no Liens whatsoever (other than Permitted Liens that are do not arise by agreement, such as tax or statutory Liens) on Company IP. Borrower shall not enter into or suffer to exist or become effective any agreement that prohibits or limits the ability of any Borrower to create, incur, assume or suffer to exist any Lien upon any of its property (including Company IP), whether now owned or hereafter acquired, to secure its obligations under the Loan Documents to which it is a party other than (a) this Agreement and the other Loan Documents, (b) any agreements governing any purchase money Liens or capital lease obligations otherwise

45 NY-2442286 permitted hereby (in which case, any prohibition or limitation shall only be effective against the assets financed thereby) and (c) customary restrictions on the assignment of leases, licenses and other agreements. Borrower shall cause its Subsidiaries to protect and defend such Subsidiary’s title to its assets from and against all Persons claiming any interest adverse to such Subsidiary (other than Permitted Liens), and Borrower shall cause its Subsidiaries at all times to keep such Subsidiary’s property and assets free and clear from any legal process or Liens whatsoever (except for Permitted Liens, provided however, that there shall be no Liens whatsoever (other than Permitted Liens that are do not arise by agreement, such as tax or statutory Liens) on Company IP), and shall give Agent prompt written notice of any legal process affecting such Subsidiary’s assets in an aggregate amount greater than $1,000,000 at any time. 7.6 Investments. Borrower shall not directly or indirectly acquire or own, or make any Investment in or to any Person, or permit any of its Subsidiaries so to do, other than Permitted Investments. Notwithstanding the foregoing, and for the avoidance of doubt, this Section 7.6 shall not prohibit the conversion by holders of (including any payment upon conversion, whether in cash, Common Stock or a combination thereof), or required payment of any principal or premium on (including, for the avoidance of doubt, in respect of a required repurchase in connection with the redemption of Permitted Convertible Debt upon satisfaction of a condition related to the stock price of the Common Stock) or required payment of any interest with respect to, any Permitted Convertible Debt in each case, in accordance with the terms of the indenture governing such Permitted Convertible Debt; provided that principal payments in cash (other than cash in lieu of fractional shares) shall only be allowed if the Redemption Conditions are satisfied in respect of such payment and at all times after such payment. 7.7 Distributions. Borrower shall not, and shall not allow any Subsidiary to, (a) repurchase or redeem any class of stock or other Equity Interest other than pursuant to employee, director or consultant repurchase plans or other similar agreements, provided, however, in each case the repurchase or redemption price does not exceed the fair market value for such stock or Equity Interest, or (b) declare or pay any cash dividend or make any other cash distribution on any class of stock or other Equity Interest, except that a Subsidiary may pay dividends or make other distributions to Borrower or any Subsidiary of Borrower, (c) lend money to any employees, officers or directors or guarantee the payment of any such loans granted by a third party in excess of $200,000 in the aggregate at any time outstanding or (d) waive, release or forgive any Indebtedness owed by any employees, officers or directors in excess of $200,000 in the aggregate. Notwithstanding the foregoing, and for the avoidance of doubt, this Section 7.7 shall not prohibit the conversion by holders of (including any payment upon conversion, whether in cash, Common Stock or a combination thereof), or required payment of any principal or premium on or required payment of any interest with respect to, any Permitted Convertible Debt in each case, in accordance with the terms of the indenture governing such Permitted Convertible Debt; provided that principal payments in cash (other than cash in lieu of fractional shares) shall only be allowed if the Redemption Conditions are satisfied in respect of such payment and at all times after such payment.

46 NY-2442286 7.8 Transfers. Except for Permitted Transfers, Borrower shall not, and shall not allow any Subsidiary to, voluntarily or involuntarily transfer, sell, lease, license, lend or in any other manner convey any equitable, beneficial or legal interest in any material portion of its assets; provided that licenses of Company IP (to the extent not constituting Permitted Transfers) may be made with the consent of the Required Lenders, it being understood that the Required Lenders’ response in respect of such consent shall not be unreasonably withheld or delayed. 7.9 Mergers or Acquisitions. Borrower shall not merge or consolidate, or permit any of its Subsidiaries to merge or consolidate, with or into any other business organization (other than mergers or consolidations of (a) a Subsidiary which is not a Borrower into another Subsidiary or into Borrower or (b) a Borrower into another Borrower), or, other than Permitted Acquisitions, acquire, or permit any of its Subsidiaries to acquire, in each case including for the avoidance of doubt through a merger, purchase, in-licensing arrangement or any similar transaction, all or substantially all of the capital stock or any property of another Person. 7.10 Taxes. Borrower shall, and shall cause each of its Subsidiaries to, pay when due all material Taxes of any nature whatsoever now or hereafter imposed or assessed against Borrower or the Collateral or upon Borrower’s ownership, possession, use, operation or disposition thereof or upon Borrower’s rents, receipts or earnings arising therefrom. Borrower shall, and shall cause each of its Subsidiaries to, accurately file on or before the due date therefor (taking into account proper extensions) all federal and state income Tax returns and other material Tax returns required to be filed. Notwithstanding the foregoing, Borrower and its Subsidiaries may contest, in good faith and by appropriate proceedings diligently conducted, Taxes for which Borrower and its Subsidiaries maintain adequate reserves in accordance with GAAP. 7.11 Corporate Changes. Neither Borrower nor any Subsidiary shall change its corporate name, legal form or jurisdiction of formation without twenty (20) days’ prior written notice to Agent. Neither Borrower nor any Subsidiary shall suffer a Change in Control. Neither Borrower nor any Subsidiary shall relocate its chief executive office or its principal place of business unless: (i) it has provided prior written notice to Agent; and (ii) other than with respect to Replimune UK, such relocation shall be within the continental United States of America. Neither Borrower nor any Subsidiary shall relocate any item of Collateral (other than (x) sales of Inventory in the ordinary course of business, (y) relocations of Equipment having an aggregate value of up to $150,000 in any fiscal year, and (z) relocations of Collateral from a location identified in Section 4(d) and Section 4(e) of the Perfection Certificate (as in effect on the date hereof) to another location identified in Section 4(d) and Section 4(e) of the Perfection Certificate (as in effect on the date hereof)) unless (1) it has provided prompt written notice to Agent, (2) other than with respect to Replimune UK, such relocation is within the continental United States of America or, with respect to Replimune UK, such relocation is within the United Kingdom, and (3) if such relocation is to a third party bailee, it has delivered a bailee agreement (to the extent customary under applicable law) in form and substance reasonably acceptable to Agent, excluding: (A) the leased premises located at 69 Innovation Drive, Xxxxxx Xxxx, Abingdon, Oxfordshire, United Kingdom, XX00 0XX and (B) the locations identified in Section 4(e) of the Perfection Certificate (as in effect on the date hereof), but such exclusion shall only be effective if such locations are solely used in connection with clinical trials or the Collateral located at such locations are comprised solely of drug products.

NY-2442286 with proper first class postage prepaid, in each case addressed to the party to be notified as follows: (a) If to Agent: HERCULES CAPITAL, INC. Legal Department Attention: Chief Legal Officer, Xxxxx Xxxxx, Xxxx Xxxxx and Xxxxxxx Xxxxx 000 Xxxxxxxx Xxxxxx, Xxxxx 000 Xxxx Xxxx, XX 00000 email: xxxxx@xxxx.xxx, xxxxxx@xxxx.xxx, xxxxxx@xxxx.xxx and xxxxxx@xxxx.xxx Telephone: 000-000-0000 (b) If to the Lenders: HERCULES CAPITAL, INC. Legal Department Attention: Chief Legal Officer, Xxxxx Xxxxx, Xxxx Xxxxx and Xxxxxxx Xxxxx 000 Xxxxxxxx Xxxxxx, Xxxxx 000 Xxxx Xxxx, XX 00000 email: xxxxx@xxxx.xxx, xxxxxx@xxxx.xxx, xxxxxx@xxxx.xxx and xxxxxx@xxxx.xxx Telephone: 000-000-0000 (c) If to Borrower: REPLIMUNE GROUP, INC. Attention: Xxxxxx Xxxxxx-Xxxxxx, CEO 000 Xxxxxxx Xxxx Xx. 0xx Xxxxx Xxxxxx, XX, 00000 email: *** Telephone: *** or to such other address as each party may designate for itself by like notice. 11.3 Entire Agreement; Amendments. (a) This Agreement and the other Loan Documents constitute the entire agreement and understanding of the parties hereto in respect of the subject matter hereof and thereof, and supersede and replace in their entirety any prior proposals, term sheets, non-disclosure or confidentiality agreements, letters, negotiations or other documents or agreements, whether written or oral, with respect to the subject matter hereof or thereof (including Agent’s proposal letter dated September 7, 2022, and the Non-Disclosure Agreement). (b) Neither this Agreement, any other Loan Document, nor any terms hereof or thereof may be amended, supplemented or modified except in accordance with the 55

58 NY-2442286 Register shall be conclusive absent manifest error, and such Lender shall treat each Person whose name is recorded in the Participant Register as the owner of such participation for all purposes of this Agreement notwithstanding any notice to the contrary. For the avoidance of doubt, the Agent (in its capacity as Agent) shall have no responsibility for maintaining a Participant Register. Borrower agrees that each participant shall be entitled to the benefits of the provisions in Addendum 1 attached hereto (subject to the requirements and limitations therein, including the requirements under Section 7 of Addendum 1 attached hereto (it being understood that the documentation required under Section 7 of Addendum 1 attached hereto shall be delivered to the participating Lender)) to the same extent as if it were a Lender and had acquired its interest by assignment pursuant to Section 11.7; provided that such participant shall not be entitled to receive any greater payment under Addendum 1 attached hereto, with respect to any participation, than its participating Lender would have been entitled to receive, except to the extent such entitlement to receive a greater payment results from a change in law that occurs after the participant acquired the applicable participation. 11.9 Governing Law. This Agreement and the other Loan Documents (other than the English Security Documents) shall be governed by, and construed and enforced in accordance with, the laws of the State of New York, excluding conflict of laws principles that would cause the application of laws of any other jurisdiction. 11.10 Consent to Jurisdiction and Venue. All judicial proceedings (to the extent that the reference requirement of Section 11.11 is not applicable) arising in or under or related to this Agreement or any of the other Loan Documents may be brought in any state or federal court located in the State of New York. By execution and delivery of this Agreement, each party hereto generally and unconditionally: (a) consents to nonexclusive personal jurisdiction in New York County, State of New York; (b) waives any objection as to jurisdiction or venue in the New York County, State of New York; (c) agrees not to assert any defense based on lack of jurisdiction or venue in the aforesaid courts; and (d) irrevocably agrees to be bound by any judgment rendered thereby in connection with this Agreement or the other Loan Documents. Service of process on any party hereto in any action arising out of or relating to this Agreement shall be effective if given in accordance with the requirements for notice set forth in Section 11.2, and shall be deemed effective and received as set forth in Section 11.2. Nothing herein shall affect the right to serve process in any other manner permitted by law or shall limit the right of either party to bring proceedings in the courts of any other jurisdiction. 11.11 Mutual Waiver of Jury Trial. (a) Because disputes arising in connection with complex financial transactions are most quickly and economically resolved by an experienced and expert Person and the parties wish applicable state and federal laws to apply (rather than arbitration rules), the parties desire that their disputes be resolved by a judge applying such applicable laws. EACH OF BORROWER, AGENT AND THE LENDERS SPECIFICALLY WAIVES ANY RIGHT IT MAY HAVE TO TRIAL BY JURY OF ANY CAUSE OF ACTION, CLAIM, CROSS-CLAIM, COUNTERCLAIM, THIRD PARTY CLAIM OR ANY OTHER CLAIM (COLLECTIVELY, “CLAIMS”) ASSERTED BY BORROWER AGAINST AGENT, THE LENDERS OR THEIR RESPECTIVE ASSIGNEE OR BY AGENT, THE LENDERS OR THEIR RESPECTIVE ASSIGNEE AGAINST

61 XX-0000000 Xx the event that any payment, or any part thereof, is rescinded, reduced, avoided, avoidable, restored, returned, or recovered, the Loan Documents and the Secured Obligations shall be deemed, without any further action or documentation, to have been revived and reinstated except to the extent of the full, final, and indefeasible payment to Agent or the Lenders in cash. 11.16 Counterparts. This Agreement and any amendments, waivers, consents or supplements hereto may be executed in any number of counterparts, and by different parties hereto in separate counterparts, each of which when so delivered shall be deemed an original, but all of which counterparts shall constitute but one and the same instrument. Delivery of an executed signature page of this Agreement by facsimile or other electronic mail transmission shall be effective as delivery of a manually executed counterpart hereof. A set of the copies of this Agreement signed by all the parties shall be lodged with Xxxxxxxx and Agent. The words “execution,” “signed,” “signature,” and words of like import in any Assignment and Assumption shall be deemed to include electronic signatures or the keeping of records in electronic form, each of which shall be of the same legal effect, validity or enforceability as a manually executed signature or the use of a paper-based recordkeeping system, as the case may be, to the extent and as provided for in any applicable law, including the Federal Electronic Signatures in Global and National Commerce Act, the New York State Electronic Signatures and Records Act, the California Uniform Electronics Transactions Act, or any other similar state laws based on the Uniform Electronic Transactions Act. 11.17 No Third Party Beneficiaries. No provisions of the Loan Documents are intended, nor will be interpreted, to provide or create any third-party beneficiary rights or any other rights of any kind in any Person other than Agent, the Lenders and Borrower unless specifically provided otherwise herein, and, except as otherwise so provided, all provisions of the Loan Documents will be personal and solely among Agent, the Lenders and Borrower. 11.18 Agency. Agent and each Lender hereby agree to the terms and conditions set forth on Addendum 3 attached hereto. Xxxxxxxx acknowledges and agrees to the terms and conditions set forth on Addendum 3 attached hereto. 11.19 Publicity. None of the parties hereto nor any of its respective member businesses and Affiliates shall, without the other parties’ prior written consent (which shall not be unreasonably withheld or delayed), publicize or use (a) the other party’s name (including a brief description of the relationship among the parties hereto), logo or hyperlink to such other parties’ web site, separately or together, in written and oral presentations, advertising, promotional and marketing materials, client lists, public relations materials or on its web site (together, the “ Publicity Materials”); (b) the names of officers of such other parties in the Publicity Materials; and (c) such other parties’ name, trademarks, servicemarks in any news or press release concerning such party; provided however, notwithstanding anything to the contrary herein, no such consent shall be required (i) to the extent necessary to comply with the requests of any regulators, legal requirements or laws applicable to such party, pursuant to any listing agreement with any national securities exchange (so long as such party provides prior notice to the other party hereto to the extent reasonably practicable) and (ii) to comply with Section 11.13. 11.20 Multiple Borrowers. Each Borrower hereby agrees to the terms and conditions set forth on Addendum 4 attached hereto.

[Signature Page to Loan and Security Agreement (Hercules/Replimune)] IN WITNESS WHEREOF, Borrower, Agent and the Lenders have duly executed and delivered this Loan and Security Agreement as of the day and year first above written. BORROWER: REPLIMUNE GROUP, INC. Signature: Print Name: Xxxxxx Xxxxxx-Xxxxxx Title: Chief Executive Officer DocuSign Envelope ID: 5BAFBC73-DF4C-440F-9761-66C44096C8B2 /s/ Xxxxxx Xxxxxx-Xxxxxx REPLIMUNE, INC. Signature: /s/ Xxxxxx Xxxxxx-Xxxxxx Print Name: Xxxxxx Xxxxxx-Xxxxxx Title: Treasurer and Secretary REPLIMUNE LIMITED Signature: Print Name: Xxxxxx Xxxxxx-Xxxxxx Title: Director /s/ Xxxxxx Xxxxxx-Xxxxxx

[Signature Page to Loan and Security Agreement (Hercules/Replimune)] AGENT: HERCULES CAPITAL, INC. Signature: Print Name: Xxxx Xxxxx Title: Chief Financial Officer /s/ Xxxx Xxxxx

[Signature Page to Loan and Security Agreement (Hercules/Replimune)] LENDERS: HERCULES CAPITAL, INC. Signature: Print Name: Xxxx Xxxxx Title: Chief Financial Officer /s/ Xxxx Xxxxx

[Signature Page to Loan and Security Agreement (Hercules/Replimune)] Print Name: Title: Xxxx Xxxxx Authorized Signatory LENDERS: HERCULES PRIVATE GLOBAL VENTURE GROWTH FUND I L.P. By: Hercules Adviser LLC, its Investment Adviser Signature: /s/ Xxxx Xxxxx

66 NY-2442286 Table of Addenda, Exhibits and Schedules Addendum 1: Addendum 2: Taxes; Increased Costs Reserved Addendum 3: Agent and Lender Terms Addendum 4: Multiple Borrower Terms Exhibit A: Advance Request Attachment to Advance Request Exhibit B: Name, Locations, and Other Information for Borrower Exhibit C: Reserved Exhibit D: Borrower’s Deposit Accounts and Investment Accounts Exhibit E: Compliance Certificate Exhibit F: Joinder Agreement Exhibit G: ACH Debit Authorization Agreement Exhibit H-1: Form of U.S. Tax Compliance Certificate (For Foreign Lenders That Are Not Partnerships For U.S. Federal Income Tax Purposes) Exhibit H-2: Form of U.S. Tax Compliance Certificate (For Foreign Participants That Are Not Partnerships For U.S. Federal Income Tax Purposes) Exhibit H-3: Form of U.S. Tax Compliance Certificate (For Foreign Participants That Are Partnerships For U.S. Federal Income Tax Purposes) Exhibit H-4: Form of U.S. Tax Compliance Certificate (For Foreign Lenders That Are Partnerships For U.S. Federal Income Tax Purposes) Schedule 1.1 Commitments Schedule 1 Subsidiaries Schedule 1A Existing Permitted Indebtedness Schedule 1B Existing Permitted Investments Schedule 1C Schedule 4.4 Existing Permitted Liens Post-Closing Deliverables Schedule 5.3 Consents, Etc. Schedule 5.8 Tax Matters Schedule 5.9 Current Company IP Claims Schedule 5.10 Current Company IP Schedule 5.11 Borrower Products Schedule 5.14 Capitalization

67 NY-2442286 ADDENDUM 1 to LOAN AND SECURITY AGREEMENT TAXES; INCREASED COSTS 1. Defined Terms. For purposes of this Addendum 1: a. “Connection Income Taxes” means Other Connection Taxes that are imposed on or measured by net income (however denominated) or that are franchise Taxes or branch profits Taxes. b. “Excluded Taxes” means any of the following Taxes imposed on or with respect to a Recipient or required to be withheld or deducted from a payment to a Recipient, (i) Taxes imposed on or measured by net income (however denominated), franchise Taxes, and branch profits Taxes, in each case, (A) imposed as a result of such Recipient being organized under the laws of, or having its principal office or, in the case of any Lender, its applicable lending office located in, the jurisdiction imposing such Tax (or any political subdivision thereof) or (B) that are Other Connection Taxes, (ii) in the case of a Lender, U.S. federal withholding Taxes imposed on amounts payable to or for the account of such Lender with respect to an applicable interest in a Loan or Term Commitment pursuant to a law in effect on the date on which (A) such Lender acquires such interest in the Loan or Term Commitment or (B) such Lender changes its lending office, except in each case to the extent that, pursuant to Section 2 or Section 4 of this Addendum 1, amounts with respect to such Taxes were payable either to such Lender’s assignor immediately before such Lender became a party hereto or to such Lender immediately before it changed its lending office, (iii) Taxes attributable to such Recipient’s failure to comply with Section 7 of this Addendum 1, (iv) any withholding Taxes imposed under FATCA, and (v) so long as no Event of Default has occurred, any UK Withholding Tax imposed on interest payable to or for the account of an assignee of a Lender with respect to an applicable interest in a Term Commitment under Section 11.7 to the extent such assignee was not (assuming completion of all relevant procedural formalities) entitled to an exemption from or reduction of UK Withholding Tax with respect to the relevant payment based on the circumstances existing at the time of the relevant assignment. c. “FATCA” means Sections 1471 through 1474 of the Code, as of the date of this Agreement (or any amended or successor version that is substantively comparable and not materially more onerous to comply with), any current or future regulations or official interpretations thereof, any agreements entered into pursuant to Section 1471(b)(1) of the Code, and any fiscal or regulatory legislation, rules or practices adopted pursuant to any intergovernmental agreement, treaty or convention among governmental authorities and implementing such Sections of the Code. d. “Foreign Lender” means a Lender that is not a U.S. Person.

70 NY-2442286 and submission of such documentation (other than such documentation set forth in Sections 7(b)(i), 7(b)(ii) and 7(b)(iv) of this Addendum 1) shall not be required if in the Lender’s reasonable judgment such completion, execution or submission would subject such Lender to any material unreimbursed cost or expense or would materially prejudice the legal or commercial position of such Lender. Notwithstanding anything to the contrary herein, a Lender shall be deemed to have satisfied the requirements of this Section 7 in respect of any deduction or withholding for or on account of tax imposed by the United Kingdom if such Lender has either (x) notified Borrower or Agent of its passport number under the HMRC treaty passport scheme (and for the avoidance of doubt, the provision by a Lender of its HMRC treaty passport scheme number in Schedule 1.1 hereto shall satisfy this requirement); or (y) submitted an application for withholding tax relief under the applicable income tax treaty to the appropriate tax authority, in each case without regard to whether any document required from HMRC has been obtained. b. Without limiting the generality of the foregoing, in the event that Borrower is a U.S. Person, i. any Lender that is a U.S. Person shall deliver to Borrower and the Agent on or prior to the date on which such Xxxxxx becomes a Lender under this Agreement (and from time to time thereafter upon the reasonable request of Borrower or the Agent), executed copies of IRS Form W-9 certifying that such Lender is exempt from U.S. federal backup withholding tax; ii. any Foreign Lender shall, to the extent it is legally entitled to do so, deliver to Borrower and the Agent (in such number of copies as shall be requested by the recipient) on or prior to the date on which such Foreign Lender becomes a Lender under this Agreement (and from time to time thereafter upon the reasonable request of Borrower or the Agent), whichever of the following is applicable: A. in the case of a Foreign Lender claiming the benefits of an income tax treaty to which the United States is a party (x) with respect to payments of interest under any Loan Document, executed copies of IRS Form W-8BEN or IRS Form W-8BEN-E establishing an exemption from, or reduction of, U.S. federal withholding Tax pursuant to the “interest” article of such tax treaty and (y) with respect to any other applicable payments under any Loan Document, IRS Form W-8BEN or IRS Form W-8BEN-E establishing an exemption from, or reduction of, U.S. federal withholding Tax pursuant to the “business profits” or “other income” article of such tax treaty; B. executed copies of IRS Form W-8ECI;

71 NY-2442286 C. in the case of a Foreign Lender claiming the benefits of the exemption for portfolio interest under Section 881(c) of the Code, (x) a certificate substantially in the form of Exhibit H-1 to the effect that such Foreign Lender is not a “bank” within the meaning of Section 881(c)(3)(A) of the Code, a “10 percent shareholder” of Borrower within the meaning of Section 871(h)(3)(B) of the Code, or a “controlled foreign corporation” related to Borrower as described in Section 881(c)(3)(C) of the Code (a “U.S. Tax Compliance Certificate”) and (y) executed copies of IRS Form W-8BEN or IRS Form W-8BEN-E; or D. to the extent a Foreign Lender is not the beneficial owner, executed copies of IRS Form W-8IMY, accompanied by IRS Form W-8ECI, IRS Form W-8BEN, IRS Form W- 8BEN-E, a U.S. Tax Compliance Certificate substantially in the form of Exhibit H-2 or Exhibit H-3, IRS Form W-9, and/or other certification documents from each beneficial owner, as applicable; provided that if the Foreign Lender is a partnership and one or more direct or indirect partners of such Foreign Lender are claiming the portfolio interest exemption, such Foreign Lender may provide a U.S. Tax Compliance Certificate substantially in the form of Exhibit H-4 on behalf of each such direct and indirect partner; iii. any Foreign Lender shall, to the extent it is legally entitled to do so, deliver to Borrower and the Agent (in such number of copies as shall be requested by the recipient) on or prior to the date on which such Foreign Lender becomes a Lender under this Agreement (and from time to time thereafter upon the reasonable request of Borrower or the Agent), executed copies of any other form prescribed by applicable law as a basis for claiming exemption from or a reduction in U.S. federal withholding Tax, duly completed, together with such supplementary documentation as may be prescribed by applicable law to permit Borrower or the Agent to determine the withholding or deduction required to be made; and iv. if a payment made to a Lender under any Loan Document would be subject to U.S. federal withholding Tax imposed by FATCA if such Lender were to fail to comply with the applicable reporting requirements of FATCA (including those contained in Section 1471(b) or 1472(b) of the Code, as applicable), such Lender shall deliver to Borrower and the Agent at the time or times prescribed by law and at such time or times reasonably requested by Borrower or the Agent such documentation prescribed by applicable law (including as prescribed by Section 1471(b)(3)(C)(i) of the Code)

2 NY-2442286 ADDENDUM 3 to LOAN AND SECURITY AGREEMENT Agent and Xxxxxx Xxxxx (a) Each Lender hereby irrevocably appoints Hercules Capital, Inc. to act on its behalf as the Agent hereunder and under the other Loan Documents and authorizes the Agent to take such actions on its behalf and to exercise such powers as are delegated to the Agent by the terms hereof or thereof, together with such actions and powers as are reasonably incidental thereto. (b) Each Lender agrees to indemnify the Agent in its capacity as such (to the extent not reimbursed by Borrower and without limiting the obligation of Borrower to do so), according to its respective Term Commitment percentages (based upon the total outstanding Term Loan Commitments) in effect on the date on which indemnification is sought under this Addendum 3, from and against any and all liabilities, obligations, losses, damages, penalties, actions, judgments, suits, costs, expenses or disbursements of any kind whatsoever that may at any time be imposed on, incurred by or asserted against the Agent in any way relating to or arising out of, this Agreement, any of the other Loan Documents or any documents contemplated by or referred to herein or therein or the transactions contemplated hereby or thereby or any action taken or omitted by the Agent under or in connection with any of the foregoing. The agreements in this Section shall survive the payment of the Loans and all other amounts payable hereunder. (c) Agent in Its Individual Capacity. The Person serving as the Agent hereunder shall have the same rights and powers in its capacity as a Lender as any other Lender and may exercise the same as though it were not the Agent and the term “Lender” shall, unless otherwise expressly indicated or unless the context otherwise requires, include each such Person serving as Agent hereunder in its individual capacity. (d) Exculpatory Provisions. The Agent shall have no duties or obligations except those expressly set forth herein and in the other Loan Documents. Without limiting the generality of the foregoing, the Agent shall not: (i) be subject to any fiduciary or other implied duties, regardless of whether any Default or any Event of Default has occurred and is continuing; (ii) have any duty to take any discretionary action or exercise any discretionary powers, except discretionary rights and powers expressly contemplated hereby or by the other Loan Documents that the Agent is required to exercise as directed in writing by the Lenders, provided that the Agent shall not be required to take any action that, in its opinion or the opinion of its counsel, may expose the Agent to liability or that is contrary to any Loan Document or applicable law; and

3 NY-2442286 (iii) except as expressly set forth herein and in the other Loan Documents, have any duty to disclose, and the Agent shall not be liable for the failure to disclose, any information relating to Borrower or any of its Affiliates that is communicated to or obtained by any Person serving as the Agent or any of its Affiliates in any capacity. (e) The Agent shall not be liable for any action taken or not taken by it (i) with the consent or at the request of the Lenders or as the Agent shall believe in good faith shall be necessary, under the circumstances or (ii) in the absence of its own gross negligence or willful misconduct. (f) The Agent shall not be responsible for or have any duty to ascertain or inquire into (i) any statement, warranty or representation made in or in connection with this Agreement or any other Loan Document, (ii) the contents of any certificate, report or other document delivered hereunder or thereunder or in connection herewith or therewith, (iii) the performance or observance of any of the covenants, agreements or other terms or conditions set forth herein or therein or the occurrence of any Default or Event of Default, (iv) the validity, enforceability, effectiveness or genuineness of this Agreement, any other Loan Document or any other agreement, instrument or document or (v) the satisfaction of any condition set forth in Section 4 or elsewhere herein, other than to confirm receipt of items expressly required to be delivered to the Agent. (g) Reliance by Agent. Agent may rely, and shall be fully protected in acting, or refraining to act, upon, any resolution, statement, certificate, instrument, opinion, report, notice, request, consent, order, bond or other paper or document that it has no reason to believe to be other than genuine and to have been signed or presented by the proper party or parties or, in the case of cables, telecopies and telexes, to have been sent by the proper party or parties. In the absence of its gross negligence or willful misconduct, Agent may conclusively rely, as to the truth of the statements and the correctness of the opinions expressed therein, upon any certificates or opinions furnished to Agent and conforming to the requirements of the Loan Agreement or any of the other Loan Documents. Agent may consult with counsel, and any opinion or legal advice of such counsel shall be full and complete authorization and protection in respect of any action taken, not taken or suffered by Agent hereunder or under any Loan Documents in accordance therewith. Agent shall have the right at any time to seek instructions concerning the administration of the Collateral from any court of competent jurisdiction. Agent shall not be under any obligation to exercise any of the rights or powers granted to Agent by this Agreement, the Loan Agreement and the other Loan Documents at the request or direction of the Lenders unless Agent shall have been provided by the Lenders with adequate security and indemnity against the costs, expenses and liabilities that may be incurred by it in compliance with such request or direction.

NY-2442286 EXHIBIT A ADVANCE REQUEST To: Agent: Date: _______, 20[ ] Hercules Capital, Inc. (the “Agent”) 000 Xxxxxxxx Xxxxxx, Xxxxx 000 Xxxx Xxxx, XX 00000 email: xxxxx@xxxx.xxx Attn: Chief Legal Officer, Xxxxx Xxxxx, Xxxx Xxxxx and Xxxxxxx Xxxxx Replimune Group, Inc., a Delaware corporation (“Borrower”), hereby requests from Hercules Capital, Inc., a Maryland corporation (“Lender”) an Advance in the amount of ________________ Dollars ($ _________) on, ____________, _____ (the “Advance Date”) pursuant to the Loan and Security Agreement among Borrower and other Borrowers party thereto, Agent and the Lender (the “Agreement”). Capitalized words and other terms used but not otherwise defined herein are used with the same meanings as defined in the Agreement. Please: (a) Issue a check payable to Borrower ______ or (b) Wire Funds to Borrower’s account ______ [IF FILED PUBLICLY, ACCOUNT INFO REDACTED FOR SECURITY PURPOSES] Bank: Address: ABA Number: Account Number: Account Name: Contact Person: Phone Number To Verify Wire Info: Email address: Borrower represents that the conditions precedent to the Advance set forth in the Agreement are satisfied and shall be satisfied upon the making of such Advance, including but not limited to: (i) that no event that has had or could reasonably be expected to have a Material Adverse Effect has occurred and is continuing; (ii) that the representations and warranties set forth in the Agreement are and shall be true and correct in all material respects on and as of the Advance Date with the same effect as though made on and as of such date, except to the extent such representations and warranties expressly relate to an earlier date; (iii) that Borrower is in compliance with all the terms and provisions set forth in each Loan Document on its part to be

2 NY-2442286 observed or performed; and (iv) that as of the Advance Date, no Default or Event of Default has occurred and is continuing under the Loan Documents. Xxxxxxxx understands and acknowledges that Agent has the right to review the financial information supporting this representation and, based upon such review, the Lender may decline to fund the requested Advance if the conditions specified in the Agreement have not been satisfied at such time. Borrower hereby represents that Borrower’s corporate status and locations have not changed since the date of the Agreement or, if the Attachment to this Advance Request is completed, are as set forth in the Attachment to this Advance Request. Xxxxxxxx agrees to notify Agent promptly before the funding of the Loan if any of the matters which have been represented above shall not be true and correct on the Borrowing Date and if Agent has received no such notice before the Advance Date then the statements set forth above shall be deemed to have been made and shall be deemed to be true and correct as of the Advance Date. Executed as of [ ], 20[ ]. BORROWER: REPLIMUNE GROUP, INC. SIGNATURE: TITLE: PRINT NAME:

3 NY-2442286 ATTACHMENT TO ADVANCE REQUEST Dated: _______________ Borrower hereby represents and warrants to Agent that Borrower’s current name and organizational status is as follows: Name: Replimune Group, Inc. Type of organization: Corporation State of organization: Delaware Organization file number: 6467082 Borrower hereby represents and warrants to Agent that xxx xxxxxx xxxxxxxxx, xxxxxx, xxxxxx and postal codes of its current locations are as follows: 000 Xxxxxxx Xxxx Xx., 0xx Xxxxx, Xxxxxx XX 00000

NY-2442286 EXHIBIT B NAME, LOCATIONS, AND OTHER INFORMATION FOR BORROWER 1. Borrower represents and warrants to Agent that Xxxxxxxx’s current name and organizational status as of the Closing Date is as follows: Name: Replimune Group, Inc. Type of organization: Corporation State of organization: Delaware Organization file number: 6467082 Name: Replimune, Inc. Type of organization: Corporation State of organization: Delaware Organization file number: 5711367 Name: Replimune Limited Type of organization: Company State of organization: England and Wales Registered number: 09496393 2. Borrower represents and warrants to Agent that for five (5) years prior to the Closing Date, Borrower did not do business under any other name or organization or form except the following: N/A 3. Borrower represents and warrants to Agent that its chief executive office is located at: Parent and Replimune, Inc. - 000 Xxxxxxx Xxxx Xx., 0xx Xxxxx, Xxxxxx XX 00000 Replimune UK - 00 Xxxxxxxxxx Xxxxx, Xxxxxx Xxxx, Xxxxxxxx, Xxxxxxxxxxx, Xxxxxx Xxxxxxx, XX00 0XX

2 NY-2442286 EXHIBIT C [Reserved]

NY-2442286 EXHIBIT D Deposit Accounts Bank Name Account Number Branch Address Company/ Subsidiary Purpose of Account Silicon Valley Bank 0000 Xxxxxx Xx, Xxxxx Xxxxx, XX 00000 Replimune, Inc. (US) Silicon Valley Bank 0000 Xxxxxx Xx, Xxxxx Xxxxx, XX Replimune, Inc. (US) Silicon Valley Bank 0000 Xxxxxx Xx, Xxxxx Xxxxx, XX 00000 Replimune Group, Inc. (US) Silicon Valley Bank 0000 Xxxxxx Xx, Xxxxx Xxxxx, XX 00000 Replimune, Inc. (US) Silicon Valley Bank Alphabeta, 14- 00 Xxxxxxxx Xxxxxx Xxxxxx, XX XX0X 0XX Replimune Limited (UK) Silicon Valley Bank Alphabeta, 14- 00 Xxxxxxxx Xxxxxx Xxxxxx, XX XX0X 0XX Replimune Limited (UK) Silicon Valley Bank Alphabeta, 14- 00 Xxxxxxxx Xxxxxx Xxxxxx, XX XX0X 0XX Replimune Limited (UK) Accounts Holding Investment Property Account Identifier Description Company/Subsidiary Investments Replimune Securities Capital Advisors Group *** Corporation Silicon Valley Bank Investments Replimune Securities *** Corporation *** *** 95054 *** *** *** *** *** *** *** *** *** *** *** ***

NY-2442286 EXHIBIT E COMPLIANCE CERTIFICATE Hercules Capital, Inc. (as “Agent”) 000 Xxxxxxxx Xxxxxx, Xxxxx 000 Xxxx Xxxx, XX 00000 Reference is made to that certain Loan and Security Agreement dated October 6, 2022 and the Loan Documents (as defined therein) entered into in connection with such Loan and Security Agreement all as may be amended from time to time (hereinafter referred to collectively as the “Loan Agreement”) by and among Hercules Capital, Inc. (the “Agent”), the several banks and other financial institutions or entities from time to time party thereto (collectively, the “Lender”), Replimune Group, Inc., a Delaware corporation (the “Company”), and each other Borrower that is party thereto. All capitalized terms not defined herein shall have the same meaning as defined in the Loan Agreement. The undersigned is an Officer of the Company, knowledgeable of all Company financial matters, and is authorized to provide certification of information regarding the Company; hereby certifies, in such capacity and not in any individual capacity, that, for the period ending ______________, no fact or condition exists that would (or would, with the passage of time, the giving or notice, or both) constitute a Default or an Event of Default and hereby reaffirms that all representations and warranties contained therein are true and correct on and as of the date of this Compliance Certificate with the same effect as though made on and as of such date, except to the extent such representations and warranties expressly relate to an earlier date, after giving effect in all cases to any standard(s) of materiality contained in the Loan Agreement as to such representations and warranties. Attached are the required documents supporting the above certification. The undersigned further certifies that these are prepared in accordance with GAAP (except for the absence of footnotes with respect to unaudited financial statement and subject to normal year end adjustments) and are consistent from one period to the next except as explained below. REPORTING REQUIREMENT REQUIRED CHECK IF ATTACHED Interim Financial Statements Monthly within 30 days Interim Financial Statements Quarterly within 45 days Audited Financial Statements FYE within 90 days ACCOUNTS OF BORROWER AND ITS SUBSIDIARIES AND AFFILIATES The undersigned hereby also confirms the below disclosed accounts represent all depository accounts and securities accounts presently open in the name of each Borrower or Borrower Subsidiary/Affiliate, as applicable.

NY-2442286 Each new account that has been opened since delivery of the previous Compliance Certificate is designated below with a “*”. Depository AC # Financial Institution Account Type (Depository/ Securities) Last Month Ending Account Balance Purpose of Account BORROWER Name/Address: 1 2 3 4 5 6 7 SUBSIDIARY / AFFILIATE Name/Address 1 2 3 4 5 6 7 FINANCIAL COVENANTS Financial Covenant Required Level Actual Level In Compliance? (Y/N) Minimum Unrestricted Cash Covenant [_________] $_____________

NY-2442286 Conditional Performance Covenant [__________] [____] INSURANCE POLICIES OF BORROWER AND ITS SUBSIDIARIES [The undersigned hereby also confirms that since delivery of the previous Compliance Certificate, neither Borrower nor any of its Subsidiaries has entered into or amended any insurance policy required pursuant to Section 6.1 of the Loan Agreement.]1 [Since delivery of the previous Compliance Certificate, Borrower and/or one or more of its Subsidiaries have entered into new, or amended existing, insurance policies required pursuant to Section 6.1 of the Loan Agreement. Attached hereto are copies of such new or amended insurance policies and updated insurance certificates with respect to such policies, as required to be delivered pursuant to Section 6.2 of the Loan Agreement.]2 [Current Company IP] [The following claim(s) have been made to Borrower in writing that material part(s) of the Current Company IP infringes or violates the rights of a third party: [ ]]3 [The following Specified Dispute(s) have been alleged or threatened in writing to Borrower or any of its Subsidiaries: [ ]]4 EXCLUDED SUBSIDIARIES The undersigned hereby also confirms the above disclosed accounts represent all cash and cash equivalents held by each Excluded Subsidiary, as applicable. Does any single Excluded Subsidiary hold cash and cash equivalents greater than $1,000,000 in the aggregate? ____ Yes (not in compliance) ____ No (in compliance) 1 Include if neither Borrower nor any of its Subsidiaries has entered into or amended any insurance policies since delivery of the previous Compliance Certificate. 2 Include if Borrower or any of its Subsidiaries has entered into or amended any insurance policies since delivery of the previous Compliance Certificate. 3 Include if any claim(s) have been made to any Borrower in writing that any material part of the Current Company IP violates the rights of any third party. 4 Include if any Specified Dispute(s) have been alleged or threatened in writing, in each case challenging the legality, validity, enforceability or ownership of any Current Company IP, in each case that would have a material adverse effect on the Products.

NY-2442286 If yes: Please list such Subsidiaries and indicate whether a Joinder will be provided for such Subsidiary: [ ● ] Is the aggregate amount of cash and cash equivalents held by all Excluded Subsidiaries less than or equal to $1,500,000? ____ Yes (in compliance) ____ No ( not in compliance) [MSC SUBSIDIARY AND MSC INVESTMENT CONDITIONS Does the MSC Subsidiary have any assets or liabilities? ____ Yes ____ No Is the aggregate amount of the consolidated cash of Borrower and its Subsidiaries equal to or less than $150,000,000? ____ Yes (please complete below chart) ____ No MSC INVESTMENT CONDITIONS (1) Aggregate amount of Borrower’s cash and cash equivalents held in accounts subject to an Account Control Agreement: $[ ● ] (2) Aggregate amount of outstanding Secured Obligations (including any Prepayment Charge and End of Term Charge if outstanding Term Loan Advances were prepaid at this time): $[ ● ] (3) Aggregate amount of the consolidated Cash of Borrower and its Subsidiaries (other than Cash held in Excluded Accounts): $[ ● ] (4) Amount of the lesser of line (2) and line (3): $[ ● ] Is line (1) equal to or greater than line (4)? _____ Yes (in compliance) _____ No ( not in compliance)] Very Truly Yours, REPLIMUNE GROUP, INC. By: Name: Its:

NY-2442286 be deemed an Advance to Subsidiary; and (iii) Subsidiary shall have no right to request an Advance or make any other demand on the Lenders. 3. [Subsidiary agrees not to certificate its equity securities without Agent’s prior written consent, which consent may be conditioned on the delivery of such equity securities to Agent in order to perfect Agent’s security interest in such equity securities.]5 4. Subsidiary acknowledges that it benefits, both directly and indirectly, from the Loan Agreement, and hereby waives, for itself and on behalf on any and all successors in interest (including without limitation any assignee for the benefit of creditors, receiver, bankruptcy trustee or itself as debtor-in-possession under any bankruptcy proceeding) to the fullest extent provided by law, any and all claims, rights or defenses to the enforcement of this Joinder Agreement on the basis that (a) it failed to receive adequate consideration for the execution and delivery of this Joinder Agreement or (b) its obligations under this Joinder Agreement are avoidable as a fraudulent conveyance. 5. As security for the prompt, complete and indefeasible payment when due (whether on the payment dates or otherwise) of all the Secured Obligations, Subsidiary grants to Agent a security interest in all of Subsidiary’s right, title, and interest in and to the Collateral. SUBSIDIARY: __________________________________ By: Name: Title: Address: Telephone: __________ email: ________ AGENT: HERCULES CAPITAL, INC. By: __________________________ Name: ________________________ Title: _________________________ Address: 000 Xxxxxxxx Xxx., Xxxxx 000 Xxxx Xxxx, XX 00000 email: xxxxx@xxxx.xxx Telephone: 000-000-0000 5 Only include if Subsidiary’s equity interests are not certificated as of the joinder date.

NY-2442286 EXHIBIT G ACH DEBIT AUTHORIZATION AGREEMENT [Hercules Capital, Inc.] [ ] 000 Xxxxxxxx Xxxxxx, Xxxxx 000 Xxxx Xxxx, XX 00000 Re: Loan and Security Agreement dated October 6, 2022 (the “Agreement”) by and among Replimune Group, Inc., a Delaware corporation (“Borrower”), and certain of its Subsidiaries party thereto as a borrower, Hercules Capital, Inc., as agent (“Company”), and the lenders party thereto (collectively, the “Lenders”) In connection with the above referenced Agreement, Borrower hereby authorizes the Company to initiate debit entries for (i) the periodic payments due under the Agreement and (ii) out-of- pocket legal fees and costs incurred by Agent or the Lenders pursuant to Section 11.12 of the Agreement to Borrower’s account indicated below. Borrower authorizes the depository institution named below to debit to such account. [IF FILED PUBLICLY, ACCOUNT INFO REDACTED FOR SECURITY PURPOSES] DEPOSITORY NAME BRANCH CITY STATE AND ZIP CODE TRANSIT/ABA NUMBER ACCOUNT NUMBER This authority will remain in full force and effect so long as any amounts are due under the Agreement. REPLIMUNE GROUP, INC. By: Name: Date:

NY-2442286 EXHIBIT H-1 FORM OF U.S. TAX COMPLIANCE CERTIFICATE (For Foreign Lenders That Are Not Partnerships For U.S. Federal Income Tax Purposes) Reference is hereby made to the Loan and Security Agreement dated as of October 6, 2022 (as amended, supplemented or otherwise modified from time to time, the “Loan Agreement”) by and among Replimune Group, Inc., a Delaware corporation, and certain of its Subsidiaries party thereto as a borrower (collectively, “Borrower”), the several banks and other financial institutions or entities from time to time parties thereto (collectively, referred to as the “Lenders”), and HERCULES CAPITAL, INC., a Maryland corporation, in its capacity as administrative agent and collateral agent for itself and the Lenders (in such capacity, the “Agent”). Pursuant to the provisions of Addendum 1 of the Loan Agreement, the undersigned hereby certifies that (i) it is the sole record and beneficial owner of the Loan(s) (as well as any promissory note(s) evidencing such Loan(s)) in respect of which it is providing this certificate, (ii) it is not a “bank” within the meaning of Section 881(c)(3)(A) of the Code, (iii) it is not a “ten percent shareholder” of Borrower within the meaning of Section 871(h)(3)(B) of the Code and (iv) it is not a “controlled foreign corporation” related to Borrower as described in Section 881(c)(3)(C) of the Code. The undersigned has furnished the Agent and Borrower with a certificate of its non-U.S. Person status on IRS Form W-8BEN or IRS Form W-8BEN-E. By executing this certificate, the undersigned agrees that (1) if the information provided in this certificate changes, the undersigned shall promptly so inform Borrower and the Agent, and (2) the undersigned shall have at all times furnished Borrower and the Agent with a properly completed and currently effective certificate in either the calendar year in which each payment is to be made to the undersigned, or in either of the two calendar years preceding such payments. Unless otherwise defined herein, terms defined in the Loan Agreement and used herein shall have the meanings given to them in the Loan Agreement. Date: ___________, 20___ [NAME OF XXXXXX] By: Name: Title:

NY-2442286 EXHIBIT H-2 FORM OF U.S. TAX COMPLIANCE CERTIFICATE (For Foreign Participants That Are Not Partnerships For U.S. Federal Income Tax Purposes) Reference is hereby made to the Loan and Security Agreement dated as of October 6, 2022 (as amended, supplemented or otherwise modified from time to time, the “Loan Agreement”) by and among Replimune Group, Inc., a Delaware corporation, and certain of its Subsidiaries party thereto as a borrower (collectively, “Borrower”), the several banks and other financial institutions or entities from time to time parties thereto (collectively, referred to as the “Lenders”), and HERCULES CAPITAL, INC., a Maryland corporation, in its capacity as administrative agent and collateral agent for itself and the Lenders (in such capacity, the “Agent”). Pursuant to the provisions of Addendum 1 of the Loan Agreement, the undersigned hereby certifies that (i) it is the sole record and beneficial owner of the participation in respect of which it is providing this certificate, (ii) it is not a “bank” within the meaning of Section 881(c)(3)(A) of the Code, (iii) it is not a “ten percent shareholder” of Borrower within the meaning of Section 871(h)(3)(B) of the Code and (iv) it is not a “controlled foreign corporation” related to Borrower as described in Section 881(c)(3)(C) of the Code. The undersigned has furnished its participating Lender with a certificate of its non-U.S. Person status on IRS Form W-8BEN or IRS Form W-8BEN-E. By executing this certificate, the undersigned agrees that (1) if the information provided in this certificate changes, the undersigned shall promptly so inform such Lender in writing, and (2) the undersigned shall have at all times furnished such Lender with a properly completed and currently effective certificate in either the calendar year in which each payment is to be made to the undersigned, or in either of the two calendar years preceding such payments. Unless otherwise defined herein, terms defined in the Loan Agreement and used herein shall have the meanings given to them in the Loan Agreement. Date: ___________, 20___ [NAME OF PARTICIPANT] By: Name: Title:

NY-2442286 EXHIBIT H-3 FORM OF U.S. TAX COMPLIANCE CERTIFICATE (For Foreign Participants That Are Partnerships For U.S. Federal Income Tax Purposes) Reference is hereby made to the Loan and Security Agreement dated as of October 6, 2022 (as amended, supplemented or otherwise modified from time to time, the “Loan Agreement”) by and among Replimune Group, Inc., a Delaware corporation, and certain of its Subsidiaries party thereto as a borrower (collectively, “Borrower”), the several banks and other financial institutions or entities from time to time parties thereto (collectively, referred to as the “Lenders”), and HERCULES CAPITAL, INC., a Maryland corporation, in its capacity as administrative agent and collateral agent for itself and the Lenders (in such capacity, the “Agent”). Pursuant to the provisions of Addendum 1 of the Loan Agreement, the undersigned hereby certifies that (i) it is the sole record owner of the participation in respect of which it is providing this certificate, (ii) its direct or indirect partners/members are the sole beneficial owners of such participation, (iii) with respect to such participation, neither the undersigned nor any of its direct or indirect partners/members is a “bank” extending credit pursuant to a loan agreement entered into in the ordinary course of its trade or business within the meaning of Section 881(c)(3)(A) of the Code, (iv) none of its direct or indirect partners/members is a “ten percent shareholder” of Borrower within the meaning of Section 871(h)(3)(B) of the Code and (v) none of its direct or indirect partners/members is a “controlled foreign corporation” related to Xxxxxxxx as described in Section 881(c)(3)(C) of the Code. The undersigned has furnished its participating Lender with IRS Form W-8IMY accompanied by one of the following forms from each of its partners/members that is claiming the portfolio interest exemption: (i) an IRS Form W-8BEN or IRS Form W-8BEN-E or (ii) an IRS Form W-8IMY accompanied by an IRS Form W-8BEN or IRS Form W-8BEN-E from each of such partner’s/member’s beneficial owners that is claiming the portfolio interest exemption. By executing this certificate, the undersigned agrees that (1) if the information provided in this certificate changes, the undersigned shall promptly so inform such Lender and (2) the undersigned shall have at all times furnished such Lender with a properly completed and currently effective certificate in either the calendar year in which each payment is to be made to the undersigned, or in either of the two calendar years preceding such payments. Unless otherwise defined herein, terms defined in the Loan Agreement and used herein shall have the meanings given to them in the Loan Agreement. Date: ___________, 20___ [NAME OF PARTICIPANT] By: Name: Title:

NY-2442286 EXHIBIT H-4 FORM OF U.S. TAX COMPLIANCE CERTIFICATE (For Foreign Lenders That Are Partnerships For U.S. Federal Income Tax Purposes) Reference is hereby made to the Loan and Security Agreement dated as of October 6, 2022 (as amended, supplemented or otherwise modified from time to time, the “Loan Agreement”) by and among Replimune Group, Inc., a Delaware corporation, and certain of its Subsidiaries party thereto as a borrower (collectively, “Borrower”), the several banks and other financial institutions or entities from time to time parties thereto (collectively, referred to as the “Lenders”), and HERCULES CAPITAL, INC., a Maryland corporation, in its capacity as administrative agent and collateral agent for itself and the Lenders (in such capacity, the “Agent”). Pursuant to the provisions of Addendum 1 of the Loan Agreement, the undersigned hereby certifies that (i) it is the sole record owner of the Loan(s) (as well as any promissory note(s) evidencing such Loan(s)) in respect of which it is providing this certificate, (ii) its direct or indirect partners/members are the sole beneficial owners of such Loan(s) (as well as any promissory note(s) evidencing such Loan(s)), (iii) with respect to the extension of credit pursuant to this Loan Agreement or any other Loan Document, neither the undersigned nor any of its direct or indirect partners/members is a “bank” extending credit pursuant to a loan agreement entered into in the ordinary course of its trade or business within the meaning of Section 881(c)(3)(A) of the Code, (iv) none of its direct or indirect partners/members is a “ten percent shareholder” of Borrower within the meaning of Section 871(h)(3)(B) of the Code and (v) none of its direct or indirect partners/members is a “controlled foreign corporation” related to Borrower as described in Section 881(c)(3)(C) of the Code. The undersigned has furnished the Agent and Borrower with IRS Form W-8IMY accompanied by one of the following forms from each of its partners/members that is claiming the portfolio interest exemption: (i) an IRS Form W-8BEN or IRS Form W-8BEN-E or (ii) an IRS Form W-8IMY accompanied by an IRS Form W-8BEN or IRS Form W-8BEN-E from each of such partner’s/member’s beneficial owners that is claiming the portfolio interest exemption. By executing this certificate, the undersigned agrees that (1) if the information provided in this certificate changes, the undersigned shall promptly so inform Borrower and the Agent, and (2) the undersigned shall have at all times furnished Borrower and the Agent with a properly completed and currently effective certificate in either the calendar year in which each payment is to be made to the undersigned, or in either of the two calendar years preceding such payments. Unless otherwise defined herein, terms defined in the Loan Agreement and used herein shall have the meanings given to them in the Loan Agreement. Date: ___________, 20___ [NAME OF XXXXXX] By: Name: Title:

SCHEDULE 1.1 COMMITMENTS LENDERS TRANCHE 1 TRANCHE 2 TRANCHE 3 TRANCHE 4 TRANCHE 5 TRANCHE 6* TOTAL COMMITMENTS Hercules Capital, Inc. $52,200,000.00 $13,050,000.00 $21,750,000.00 $30,450,000.00 $34,800,000.00 $25,000,000.00* $177,250,000.00 Hercules Private Global Venture Growth Fund I L.P. $7,800,000.00 $1,950,000.00 $3,250,000.00 $4,550,000.00 $5,200,000.00 -- $22,750,000.00 $60,000,000.00 $15,000,000.00 $25,000,000.00 $35,000,000.00 $40,000,000.00 $25,000,000.00* $200,000,000.00 *Funding of Tranche 6 is conditioned on approval by Xxxxxx’s investment committee in its sole and unfettered discretion. LENDERS Treaty Passport scheme reference number and jurisdiction of tax residence (if applicable) Hercules Capital, Inc. 13/H/376642/DTTP USA Hercules Private Global Venture Growth Fund I L.P. --

EU1/ 500791646.4 SCHEDULE 1 SUBSIDIARIES Parent holds: Replimune, Inc. – 100% ownership Replimune Securities Corporation – 100% ownership Replimune Limited – 100% ownership Replimune Limited holds: Replimune (Ireland) Limited – 100% ownership

EU1/ 500791646.4 SCHEDULE 1A EXISTING PERMITTED INDEBTEDNESS Borrower Third Party Amount Purpose Replimune, Inc. C T Corporation System $35,832.00 Laptops and docking stations Replimune, Inc. C T Corporation System $99,015.36 Laptops and docking stations

EU1/ 500791646.4 SCHEDULE 1B EXISTING PERMITTED INVESTMENTS None.

EU1/ 500791646.4 SCHEDULE 1C EXISTING PERMITTED LIENS Debtor Juris. / Lien Type Searched Secured Party Original File Number Original File Date Collateral Replimune, Inc. Delaware C T Corporation System 20220406447 1/17/2022 Laptops and docking stations Replimune, Inc. Delaware C T Corporation System 20223779113 5/4/2022 Laptops and docking stations

NY-2442286 SCHEDULE 4.4 POST-CLOSING DELIVERABLES 1. Within thirty (30) days of the Closing Date (or such later date to which the Agent may agree in its sole discretion), Borrower shall deliver to Agent insurance endorsements in accordance with the requirements of Section 6.2 of this Agreement. 2. Within thirty (30) days of the Closing Date (or such later date to which the Agent may agree in its sole discretion), Borrower shall obtain a duly executed and delivered landlord waiver agreement, in form and substance reasonably satisfactory to Agent, for Xxxxxxxx’s leased property located at 000 Xxxxxxx Xxxx Xx., 0xx Xxxxx, Xxxxxx, XX 00000. 3. Within thirty (30) days of the Closing Date (or such later date to which the Agent may agree in its sole discretion), Xxxxxxxx shall obtain a duly executed and delivered landlord waiver agreement, in form and substance reasonably satisfactory to Agent, for Xxxxxxxx’s leased property located at 00 XX Xxxxxx, Xxxxxxxxxx, XX 00000. 4. By no later than one (1) Business Day after the Closing Date (or such later date to which the Agent may agree in its sole discretion), Borrower shall have delivered to Agent (i) duly executed Account Control Agreements, in form and substance reasonably satisfactory to Agent, in respect of the Borrower’s Deposit Accounts set forth in Exhibit D hereto (other than Excluded Accounts) and (ii) a legal opinion of Xxxxxxxx’s U.S. counsel in form and substance reasonably acceptable to Agent.

EU1/ 500791646.4 SCHEDULE 5.8 TAX MATTERS None.

EU1/ 500791646.4 SCHEDULE 5.9 CURRENT COMPANY IP CLAIMS Section 5.9, subsection (i): certain Current Company IP is being challenged for validity as follows: EP Oppositions of Company IP: EP 3400293 EP 3400291 US Patent Trial and Appeal Board (PTAB) proceedings of Company IP: US 10,947,513

EU1/ 500791646.4 SCHEDULE 5.10(a) CURRENT COMPANY IP Section 5.10(a), first sentence: See Exhibit A to the Perfection Certificate Section 5.10(a), subsection (i)(B): certain Current Company IP is being challenged for validity as follows: See disclosure on Schedule 5.9.

EU1/ 500791646.4 SCHEDULE 5.10(f) Section 5.10(f), subsection (ii): certain Current Company IP is being challenged for validity as follows: See disclosure on Schedule 5.9.

EU1/ 500791646.4 SCHEDULE 5.10(g) CURRENT COMPANY IP SPECIAL DISPUTES None.

EU1/ 500791646.4 SCHEDULE 5.10(i) THIRD PARTY IP CLAIMS Section 5.10(i) subsection (ii): certain Current Company IP is being challenged for validity as follows: See disclosure on Schedule 5.9.

EU1/ 500791646.4 SCHEDULE 5.10(j) THIRD PARTY IP None.

EU1/ 500791646.4 SCHEDULE 5.10(k) RIGHTS TO USE CURRENT COMPANY IP None.

EU1/ 500791646.4 SCHEDULE 5.10(l) CURRENT COMPANY IP VIOLATION None.

EU1/ 500791646.4 SCHEDULE 5.10(o) CURRENT COMPANY IP None.

EU1/ 500791646.4 SCHEDULE 5.11 BORROWER PRODUCTS Section 5.11, first sentence: certain Current Company IP is being challenged for validity as follows: See disclosure on Schedule 5.9.

EU1/ 500791646.4 SCHEDULE 5.14 CAPITALIZATION WHOLLY OWNED SUBSIDIARIES OF PARENT: Replimune, Inc. Replimune Securities Corporation Replimune Limited WHOLLY OWNED SUBSIDIARIES OF REPLIMUNE LIMITED: Replimune (Ireland) Limited