OMNIAB, INC. SECURITIES PURCHASE AGREEMENT

Exhibit 10.1

OMNIAB, INC.

SECURITIES PURCHASE AGREEMENT

THIS SECURITIES PURCHASE AGREEMENT (the “Agreement”) is made as of August 24, 2025 (the “Effective Date”), by and between OMNIAB, INC., a Delaware corporation (the “Company”), and each of the purchasers whose names are set forth on Schedule A hereto (each, a “Purchaser” and, collectively, the “Purchasers”).

WHEREAS, the Purchasers desire to purchase, severally and not jointly, and the Company has agreed to sell, (i) shares (the “Shares”) of the Company’s common stock, par value $0.0001 per share (the “Common Stock”).

WHEREAS, in connection with the issuance and sale of the Shares to the Purchasers on the terms and subject to the conditions set forth in this Agreement, the Company has entered into an engagement letter (the “Engagement Letter”) with Leerink Partners LLC (the “Placement Agent”).

AGREEMENT

In consideration of the mutual covenants contained in this Agreement, and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the Company and the Purchasers hereby agree, severally and not jointly, as follows:

SECTION 1. AUTHORIZATION OF SALE OF SHARES.

The Company has authorized the sale and issuance of the Shares to the Purchasers on the terms and subject to the conditions set forth in this Agreement.

SECTION 2. AGREEMENT TO SELL AND PURCHASE THE SHARES.

2.1 Purchase. At the Closing (as defined below), the Company will issue, sell and deliver to each Purchaser, and such Purchaser will purchase, severally and not jointly, from the Company, that number of Shares set forth opposite such Purchaser’s name on Schedule A hereto, at a price per Share equal to the Per Share Purchase Price and aggregate purchase price set forth thereon (the “Purchase Price”).

2.2 Definitions. For purposes of this Agreement, the following terms shall have the following meanings:

(a) “Affiliate” means, with respect to any Person, any Person that, directly or indirectly through one or more intermediaries, controls, is controlled by or is under common control with such Person, as such terms are used in and construed under Rule 405 under the Securities Act (as defined below).

(b) “Business Day” means a day, other than a Saturday or Sunday, on which banks in New York City are open for the general transaction of business.

(c) “Common Stock Equivalents” shall mean any securities of the Company that would entitle the holder thereof to acquire at any time Common Stock, including, without limitation, any debt, preferred stock, rights, options, warrants or other instrument that is at any time convertible into or exchangeable for, or otherwise entitles the holder thereof to receive, Common Stock.

(d) “Exempt Filing” means the filing by the Company with the Commission (as defined below) on or after the Effective Date of (a) a registration statement on Form S-8 in connection with the offer and sale of securities to be issued pursuant to any equity incentive plan, (b) a universal “shelf” registration statement on Form S-3 so long as no securities are sold thereunder, and/or (c) any Registration Statement (as defined below) filed in connection with this Agreement (which, for the avoidance of doubt, includes the Secondary Registration Statement (as defined below)).

(e) “Exempt Issuance” means (a) the issuance of shares of Common Stock, restricted stock units, options or other stock awards to employees, officers or directors of the Company pursuant to any stock or option plan duly adopted for such purpose as of the Effective Date, by a majority of the non-employee members of the Board of Directors or a majority of the members of a committee of non-employee directors established for such purpose for services rendered to the Company; (b) the issuance and sale of the Shares to be issued hereunder and securities upon the exercise or exchange of or conversion of any Shares issued hereunder and/or other securities exercisable or exchangeable for or convertible into shares of Common Stock issued and outstanding on the date of this Agreement, provided that such securities have not been amended since the date of this Agreement to increase the number of such securities or to decrease the exercise price, exchange price or conversion price of such securities (other than in connection with stock splits or combinations) or to extend the term of such securities; (c) the issuance of shares of Common Stock in connection with any agreement in effect as of the Effective Date that provides for an “at-the-market” offering within the meaning of Rule 415(a)(4) of the Securities Act; and (d) the issuance of securities issued pursuant to any licensing, collaboration, acquisition or strategic transactions approved by a majority of the disinterested directors of the Company, provided that any such issuance shall only be to a person (or to the equityholders of a person) which is, itself or through its subsidiaries, an operating company or an owner of an asset in a business synergistic with the business of the Company and shall provide to the Company additional benefits in addition to the investment of funds, but shall not include a transaction in which the Company is issuing securities primarily for the purpose of raising capital or to an entity whose primary business is investing in securities (provided, however, that the aggregate number of shares of Common Stock issued pursuant to clause (d) during the restricted period shall not exceed 10% of the total number of shares of Common Stock issued and outstanding immediately following the Closing).

(f) “GAAP” means United States generally accepted accounting principles.

(g) “Governmental Entity” means any national, federal, state, county, municipal, local or foreign government, or other political subdivision thereof or any other governmental, administrative, judicial, arbitral, legislative, executive, regulatory or self-regulatory authority (including the Trading Market), instrumentality, agency, commission or body and any entity exercising executive, legislative, judicial, regulatory, taxing or administrative functions of or pertaining to government.

(h) “Knowledge of the Company” shall mean, with respect to the Company, the knowledge, following due inquiry, of any of ▇▇▇▇▇▇▇ ▇. ▇▇▇▇▇, ▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇▇ and ▇▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇▇. Such individuals will be deemed to have “knowledge” of a particular fact or other matter if such individual has or at any time had actual knowledge of such fact or other matter or if, in the absence of such actual knowledge, such person reasonably should have known such fact or other matter based on their role in the Company.

(i) “Law” means any federal, state, local or foreign law (including common law), statute, code, ordinance, rule, regulation, order, judgment, writ, stipulation, award, injunction, decree, arbitration award or finding or any other legally enforceable requirement.

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(j) “Material Adverse Effect” means any change, event, development, condition, occurrence or effect that, individually or in the aggregate with all other changes, events, developments, conditions, occurrences or effects (a) is, or could reasonably be expected to be, materially adverse to the business, financial condition, prospects, assets, liabilities or results of operations of the Company and its subsidiaries considered as one enterprise, or (b) materially impairs the ability of the Company to comply, or prevents the Company from complying, with its material obligations with respect to the Closing or would reasonably be expected to do so, or (c) is, or could reasonably be expected to be, materially adverse to the validity of the Shares purchased hereunder or the legal authority of the Company to comply in all material respects with the terms of this Agreement; provided, however, that none of the following will be deemed in themselves, either alone or in combination, to constitute, and that none of the following will be taken into account in determining whether there has been or will be, a Material Adverse Effect under subclause (a) of this definition:

provided, that the underlying cause of any change described in the foregoing clauses (i) through (vi) may be deemed to constitute, or be taken into account in determining whether there has been or will be, a Material Adverse Effect under subclause (a) of this definition, except to the extent any such change would otherwise be excepted from this definition in accordance with the foregoing.

(k) “Per Share Purchase Price” equals $1.40, or solely with respect to any Purchaser that is an officer, director, employee or consultant of the Company $1.85, in each case subject to adjustment for reverse and forward stock splits, stock dividends, stock combinations and other similar transactions of the Common Stock that occur after the date of this Agreement and prior to the Closing.

(l) “Person” means an individual, corporation, partnership, limited liability company, trust, business trust, association, joint stock company, joint venture, sole proprietorship, unincorporated organization, governmental authority or any other form of entity not specifically listed herein.

(m) “Short Sales” include, without limitation, (a) all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock pledges, forward sale contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and (b) sales and other transactions through non-U.S. broker dealers or non-U.S. regulated brokers (but shall not be deemed to include the location and/or reservation of borrowable shares of Common Stock).

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(n) “subsidiary” means any individual or entity the Company wholly-owns or controls, or in which the Company, directly or indirectly, owns a majority of the voting stock or similar voting interest, in each case that would be disclosable pursuant to Item 601(b)(21) of Regulation S-K promulgated under the Securities Act.

(o) “Trading Day” means a day on which the Trading Market is open for trading.

(p) “Trading Market” means the Nasdaq Global Market.

SECTION 3. CLOSING, CLOSING CONDITIONS AND CLOSING DELIVERIES.

3.1 Closing. The closing of the purchase and sale of the Shares pursuant to this Agreement (the “Closing”) shall occur on August 26, 2025, subject to the satisfaction or waiver of all of the conditions set forth in Section 3.2 and the delivery of all of the closing deliveries set forth in Section 3.3 (such date, the “Closing Date”), at the offices of ▇▇▇▇▇▇ & ▇▇▇▇▇▇▇ LLP, ▇▇▇▇▇ ▇▇▇▇ ▇▇▇▇▇ ▇▇▇▇▇, ▇▇▇ ▇▇▇▇▇, ▇▇, ▇▇▇▇▇, or at such other time and place as may be agreed to by the Company and the Purchasers.

3.2 Closing Conditions.

(a) Mutual Closing Condition. There shall have been no Law enacted, entered, promulgated, enforced or deemed applicable by any Governmental Entity of competent jurisdiction that is in effect and makes illegal or otherwise prohibits or materially delays the consummation of the Closing.

(b) Conditions to Purchaser’s Obligations. Each Purchaser’s obligation to purchase the Shares at the Closing is subject to the fulfillment, on or before the Closing, of each of the following conditions, unless waived:

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(c) Conditions to the Company’s Obligations. The Company’s obligation to issue and sell the Shares at the Closing to a Purchaser is subject to the fulfillment, on or before the Closing, of each of the following conditions, unless waived:

3.3 Closing Deliveries.

(a) Payment of the Purchase Price at Closing. At the Closing, each Purchaser shall deliver, or cause to be delivered, to the Company, an amount equal to such Purchaser’s aggregate Purchase Price as set forth on Schedule A hereto by wire transfer of immediately available funds to the Company’s account pursuant to wire instructions set forth in Schedule B. Each Purchaser’s obligations to pay the Purchase Price shall be several and not joint. If a Purchaser informs the Company (i) that it is an investment company registered under the Investment Company Act of 1940, as amended, (ii) that it is advised by an investment adviser subject to regulation under the Investment Advisers Act of 1940, as amended, or (iii) that its internal compliance policies and procedures so require it, then (1) prior to the delivery by such Purchaser of its Purchase Price, the Company shall deliver evidence of the issuance of the Shares from the Company’s transfer agent as described below in Section 3.3(b), and (2) following receipt of such evidence, such Purchaser shall deliver at the Closing its Purchase Price.

(b) Issuance of the Shares at the Closing. At the Closing, the Company shall issue, or cause the Company’s transfer agent to issue, to each Purchaser in global form through a book-entry account maintained by the Company’s transfer agent the number of Shares purchased by such Purchaser, as set forth in Schedule A hereto, at the Closing against payment by such Purchaser of the Purchase Price (including

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providing a copy of the irrevocable instructions delivered by the Company to the Company’s transfer agent instructing the transfer agent to issue such Shares to the Purchaser (or its nominee in accordance with such Purchaser’s delivery instructions) by crediting such Shares to the Purchaser’s account (or the account of its nominee in accordance with such Purchaser’s delivery instructions) on the transfer agent’s book-entry system on the Closing Date and confirmation from the transfer agent that such Shares were so issued on the date thereof, or, if requested by such Purchaser, a copy of the book-entry statement reflecting the issuance of such Shares to the Purchaser as of the Closing Date). Such Shares shall be appropriately legended as set forth in Section 5.11 herein.

(c) Secretary’s Certificate. At the Closing, each of the Purchasers and the Placement Agent shall have received a certificate signed by the Secretary of the Company, in form and substance reasonably satisfactory to the Purchasers and the Placement Agent, (i) certifying the resolutions of the Board of Directors of the Company or a duly authorized committee thereof approving this Agreement and all of the transactions contemplated hereunder, (ii) certifying the current versions of the Certificate of Incorporation (as defined below) and Bylaws (as defined below) and (iii) attaching a certificate evidencing the good standing of the Company in Delaware issued by the Secretary of State of Delaware, as of a date within five Business Days of the Closing Date.

(d) Compliance Certificate. At the Closing, each of the Purchasers and the Placement Agent shall have received a certificate, in form and substance reasonably satisfactory to the Purchasers and the Placement Agent, signed by the President and Chief Executive Officer of the Company certifying to the fulfillment of the conditions set forth in Section 3.2(a) and Section 3.2(b).

(e) Opinion. At the Closing, each of the Purchasers and the Placement Agent shall have received an opinion of ▇▇▇▇▇▇ & ▇▇▇▇▇▇▇ LLP, counsel for the Company, dated as of the Closing Date, in a form reasonably satisfactory to the Purchasers and the Placement Agent.

(f) Lock-up Agreements. At the Closing, each of the Purchasers and the Placement Agent shall have received executed lock-up agreements, dated as of the date hereof, by and among the Company and the directors and executive officers of the Company, all of whom are listed on Schedule C hereto, in the form attached hereto as Exhibit A (the “D&O Lock-up”), which lock-up agreement may only be waived by the Company upon receipt of written consent of the Placement Agent.

SECTION 4. REPRESENTATIONS, WARRANTIES AND COVENANTS OF THE COMPANY.

Except as disclosed in the SEC Documents (as defined below) prior to the Effective Date and only as and to the extent disclosed therein, the Company hereby represents, warrants and covenants to the Purchasers and the Placement Agent as follows:

4.1 Organization and Standing; Subsidiaries. The Company has been duly incorporated or organized and is validly existing and in good standing under the laws of Delaware or other jurisdiction of incorporation or organization, has full corporate or other power and authority necessary to own or lease its properties and conduct its business as presently conducted, and is duly qualified as a foreign corporation and in good standing in all jurisdictions in which the character of the property owned or leased or the nature of the business transacted by it makes qualification necessary, except where the failure to be so qualified would not have a Material Adverse Effect. The Company owns, directly or through subsidiaries, all of the issued outstanding equity securities of each of its subsidiaries. Each of the Company’s subsidiaries has been duly incorporated or organized and is validly existing and in good standing under the laws of its jurisdiction of incorporation or organization, has full corporate or other power and authority necessary to own or lease

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its properties and conduct its business as presently conducted, and is duly qualified as a foreign corporation and in good standing in all jurisdictions in which the character of the property owned or leased or the nature of the business transacted by it makes qualification necessary, except where the failure to be so qualified would not have a Material Adverse Effect.

4.2 Corporate Power; Authorization. The Company has all requisite corporate power and authority, and the Company and its Board of Directors have taken all requisite corporate action, to authorize, execute and deliver this Agreement, to consummate the transactions contemplated herein and therein, including to sell, issue and deliver the Shares to the Purchasers, and to carry out and perform all of the Company’s obligations hereunder and thereunder. This Agreement has been duly authorized, executed and delivered by the Company and constitutes the legal, valid and binding obligation of the Company, enforceable against the Company in accordance with its terms, except (i) as limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws relating to or affecting the enforcement of creditors’ rights generally and (ii) as limited by equitable principles generally, including any specific performance.

4.3 Issuance and Delivery of the Shares. The Shares have been duly authorized and, when issued and paid for in compliance with the provisions of this Agreement, will be validly issued, fully paid and nonassessable. The issuance and delivery of the Shares is not subject to preemptive, co-sale, right of first refusal or any other similar rights of the stockholders of the Company or any other Person or any liens, encumbrances or restrictions, other than encumbrances under applicable securities laws. Assuming the accuracy of the representations made by the Purchasers in Section 5, the offer and issuance by the Company of the Shares is exempt from registration under the Securities Act of 1933, as amended (the “Securities Act”).

4.4 SEC Documents; Financial Statements; Independent Accountants. The Company is not an “ineligible issuer” (as defined in Rule 405 promulgated under the Securities Act). The Company is subject to the reporting requirements of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and, since January 1, 2024, has filed or furnished or will file or furnish in a timely manner all reports, schedules, forms, statements and other documents that the Company was or is required to file with the Commission under either the Securities Act or the Exchange Act (the foregoing documents (together with any documents filed by the Company under the Securities Act or Exchange Act, whether or not required), and in each case including all exhibits and schedules thereto and documents incorporated by reference therein and including all registration statements and prospectuses filed with the Commission, but excluding any information for which the Company has received confidential treatment from the Commission, being collectively referred to herein as the “SEC Documents”. As of their respective filing or furnishing dates (or, if amended prior to the date of this Agreement, when amended), all SEC Documents (including any audited or unaudited financial statements and any notes thereto or schedules included therein) complied in all material respects with the requirements of the Securities Act or the Exchange Act, as the case may be, and the rules and regulations of the Commission promulgated thereunder. None of the SEC Documents as of their respective filing or furnishing dates contained any untrue statement of material fact or omitted to state a material fact required to be stated therein or necessary to make the statements made therein, in light of the circumstances under which they were made, not misleading. There are no material outstanding or unresolved comments in comment letters from the staff of the Division of Corporation Finance of the Commission with respect to any SEC Documents. The Company meets the requirements for the use of Form S-3 under the Securities Act. The financial statements (including the notes thereto) of the Company set forth in the SEC Documents (the “Financial Statements”) comply in all material respects with applicable accounting requirements and with the published rules and regulations of the Commission with respect thereto. The Financial Statements have been prepared in accordance with GAAP consistently applied during the periods involved and fairly present the financial position of the Company at the dates thereof and the results of its operations and cash flows for the periods then ended (subject, in the case of

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unaudited statements, to normal recurring adjustments). Except as set forth in the Financial Statements filed prior to the date hereof, the Company has not incurred any liabilities, contingent or otherwise, except those incurred in the ordinary course of business, consistent (as to amount and nature) with past practices since the date of such Financial Statements, none of which, individually or in the aggregate, have had or would reasonably be expected to have a Material Adverse Effect. The accountants who certified the Financial Statements are independent public accountants as required by the Securities Act and the Exchange Act and the regulations thereunder and the Public Company Accounting Oversight Board.

4.5 Capitalization. The authorized capital stock of the Company consists of 1,000,000,000 shares of Common Stock and 100,000,000 shares of preferred stock. As set forth in the SEC Documents as of the date set forth therein, all of the Company’s outstanding shares of capital stock have been duly authorized and validly issued and are fully paid and nonassessable, have been issued in compliance with all federal and state securities laws, and were not issued in violation of or subject to any preemptive right or other rights to subscribe for or purchase securities. There are no existing options, warrants, calls, subscriptions or other rights, agreements, arrangements or commitments of any character, relating to the issued or unissued capital stock of the Company, obligating the Company to issue, transfer, sell, redeem, purchase, repurchase or otherwise acquire or cause to be issued, transferred, sold, redeemed, purchased, repurchased or otherwise acquired any capital stock or voting debt of, or other equity interest in, the Company or securities or rights convertible into or exchangeable for such shares or equity interests or obligations of the Company to grant, extend or enter into any such option, warrant, call, subscription or other right, agreement, arrangement or commitment. Neither the execution of this Agreement nor the issuance of Common Stock or other securities pursuant to any provision of this Agreement will give rise to any preemptive rights or rights of first refusal on behalf of any Person or result in the triggering of any anti-dilution or other similar rights (including a rights distribution under any “poison pill” plan or similar arrangement). Other than the Common Stock, there are no other shares of any other class or series of capital stock of the Company issued or outstanding. The Company’s Certificate of Incorporation, as amended and as in effect on the date hereof (the “Certificate of Incorporation”), and the Company’s Bylaws, as amended and as in effect on the date hereof (the “Bylaws”), are included in the SEC Documents, and the Company shall not amend or otherwise modify the Certificate of Incorporation or Bylaws prior to the Closing. There are no voting agreements, buy-sell agreements, option or right of first purchase agreements or other agreements of any kind among the Company and any of the security holders of the Company relating to the securities of the Company held by them.

4.6 Litigation. There are no legal, governmental or regulatory actions, suits, investigations, charges, claims, complaints, audits, inquiries or other proceedings pending or, to the Knowledge of the Company, threatened against the Company or any of its subsidiaries, before or by any court, regulatory body or administrative agency or any other governmental agency or body, domestic or foreign, which actions, suits or proceedings, individually or in the aggregate, could reasonably be expected to (a) challenge this Agreement or prohibit or delay the transactions contemplated herein or (b) have a Material Adverse Effect. Neither the Company nor any of its subsidiaries, is a party to or subject to the provisions of any injunction, judgment, decree or order of any court, regulatory body, administrative agency or other governmental agency or body that might have a Material Adverse Effect. The Commission has not issued any stop order or other order suspending the effectiveness of any registration statement filed by the Company under the Securities Act or the Exchange Act.

4.7 Governmental Consents. No consent, approval, order or authorization of, or registration, qualification, designation, declaration or filing with, any federal, state, or local governmental authority or the Trading Market on the part of the Company is required in connection with the consummation of the transactions contemplated by this Agreement except for the filing of a Form D with the Commission under the Securities Act and compliance with the securities and blue sky laws in the states and other jurisdictions in which shares of Common Stock are offered and/or sold, which compliance will be effected by the Company in accordance with such laws.

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4.8 No Default or Consents. Neither the Company nor any of its subsidiaries, is in violation or default under its organizational documents. Neither the execution, delivery or performance of this Agreement by the Company nor the consummation of any of the transactions contemplated hereby or thereby (including the issuance, sale and delivery by the Company of the Shares) will: (i) give rise to a right to terminate or accelerate the due date of any payment due under, or conflict with or result in the breach of any term or provision of, or constitute a default (or an event which with notice or lapse of time or both would constitute a default) under, or require any consent or waiver under, or result in the execution or imposition of any lien, charge or encumbrance upon any properties or assets of the Company or any subsidiary pursuant to the terms of, any indenture, mortgage, deed of trust or other agreement or instrument to which the Company or any of its subsidiaries is a party or by which either or them or any of their respective properties or businesses are bound, or any franchise, license, permit, judgment, decree, order, statute, rule or regulation (including federal and state securities laws and regulations), and the rules and regulations, assuming the correctness of the representations and warranties made by the Purchasers herein, of any self-regulatory organization to which the Company or any of its subsidiaries or their securities are subject applicable to the Company, or (ii) violate or conflict with any provision of the Certificate of Incorporation or the Bylaws, except in the case of clause (i) as would not cause, either individually or in the aggregate, a Material Adverse Effect, and except for such consents or waivers which have already been obtained and are in full force and effect.

4.9 No Material Adverse Change. Since June 30, 2025, there have been no events, occurrences or developments that have had or would reasonably be expected to have, either individually or in the aggregate, a Material Adverse Effect. Except for the transactions contemplated by this Agreement, no event, liability or development has occurred or exists with respect to the Company or any of its subsidiaries or their respective businesses, properties, operations or financial conditions that would be required to be disclosed by the Company under applicable securities laws at the Effective Date that has not been publicly disclosed at least one Trading Day prior to the Effective Date.

4.10 No General Solicitation. Neither the Company, nor any of its Affiliates, nor any Person acting on its or their behalf, has engaged in any form of general solicitation or general advertising (within the meaning of Regulation D promulgated under the Securities Act) in connection with the offer or sale of the Shares.

4.11 No Integrated Offering. None of the Company or any of its Affiliates, or any Person acting on its or their behalf has, directly or indirectly, made any offers or sales of any security or solicited any offers to buy any security, under circumstances that would require registration of any of the Shares under the Securities Act or cause this offering of the Shares to be integrated with prior offerings by the Company for purposes of the Securities Act or any applicable stockholder approval provisions, including under the rules and regulations of the Trading Market.

4.12 ▇▇▇▇▇▇▇▇-▇▇▇▇▇ Act. The Company is in material compliance with the requirements of the ▇▇▇▇▇▇▇▇-▇▇▇▇▇ Act of 2002 that are effective and applicable to the Company as of the date hereof, and the rules and regulations promulgated by the Commission thereunder that are effective and applicable to the Company as of the date hereof.

4.13 Intellectual Property. To the Knowledge of the Company, the Company and its subsidiaries own, possess, license or have rights to use, on terms that the Company believes to be reasonable, all patents, patent applications, trademarks, trademark applications, service marks, trade names, copyrights, licenses, trade secrets, know-how and other similar rights that are necessary or material for use in connection with

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the businesses of the Company and its subsidiaries as described in the SEC Documents (collectively, the “Intellectual Property Rights”). Neither the Company nor any of its subsidiaries has received a written notice that the Intellectual Property Rights used by the Company or any subsidiary violates or infringes upon the rights of any Person. To the Knowledge of the Company, (i) all such Intellectual Property Rights are enforceable, (ii) there is no existing infringement by another Person of any of the Intellectual Property Rights and (iii) there is no pending or threatened action, suit, proceeding or claim by others challenging the Company’s Intellectual Property Rights. The Company and its subsidiaries have taken reasonable security measures to protect the secrecy and confidentiality of the Intellectual Property Rights (excluding any patents or patent applications that have or will become public), except where the failure to do so would not, individually or in the aggregate, have a Material Adverse Effect. All material licenses or other material agreements under which the Company is granted rights to intellectual property, if any, are in full force and effect and, to the Knowledge of the Company, there is no material default by any other party thereto. The Company has no reason to believe that the licensors under such licenses and other agreements, if any, do not have and did not have all requisite power and authority to grant the rights to the intellectual property purported to be granted thereby.

4.14 Disclosure. The Company understands and confirms that the Purchasers will rely on the representations, warranties and covenants set forth in this Section 4 in effecting the transactions contemplated by this Agreement. All due diligence materials regarding the Company and its business and the transactions contemplated hereby (including the information referred to in Section 5.8 hereof), furnished by or on behalf of the Company to the Purchasers upon their request are, when taken together with the SEC Documents, true and correct in all material respects and do not contain any untrue statement of material fact or omit to state a material fact necessary in order to make the statements made therein, in light of the circumstances in which they were made, not misleading. The Company understands and agrees that each Purchaser, in making its decision to enter into this Agreement and purchase its Shares, will rely on such due diligence materials and SEC Documents.

4.15 Contracts.

(a) Each indenture, contract, lease, mortgage, deed of trust, note agreement, loan or other agreement or instrument of a character that is required to be described or summarized in the SEC Documents or to be filed as an exhibit to the SEC Documents under the Exchange Act and the rules and regulations promulgated thereunder (collectively, the “Material Contracts”) is so described, summarized or filed.

(b) The Material Contracts to which the Company or any of its subsidiaries is a party have been duly and validly authorized, executed and delivered by the Company or such subsidiary and constitute the legal, valid and binding agreements of the Company or such subsidiary, enforceable by and against the Company and its subsidiaries in accordance with their respective terms, except as such enforceability may be limited by applicable bankruptcy, insolvency, reorganization or other similar laws relating to enforcement of creditors’ rights generally, and general equitable principles relating to the availability of remedies, except as rights to indemnity or contribution may be limited by federal or state securities laws. Neither the Company nor any of its subsidiaries nor, to the Knowledge of the Company, any third party has violated any provision of, or failed to perform any obligation required under the provisions of, any of the Material Contracts. Neither the Company nor any of its subsidiaries nor, to the Knowledge of the Company, any third party is in breach or default, or has received written notice of breach or default, of any of the Material Contracts. To the Knowledge of the Company, no event has occurred that, with notice or lapse of time or both, would constitute such a breach or default pursuant to any Material Contract by the Company or any of its subsidiaries, or, to the Knowledge of the Company, any other party thereto, and, as of the date of this Agreement, neither the Company nor any of its subsidiaries has received written notice of the foregoing or from the counterparty to any Material Contract (or, to the Knowledge of the Company, any of such counterparty’s Affiliates) regarding an intent to terminate, cancel, or modify any Material Contract (whether as a result of a change of control or otherwise).

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4.16 Properties and Assets. The Company and its subsidiaries have good and marketable title to all the properties and assets described as owned by them in the latest Financial Statements set forth in the SEC Documents, free and clear of all liens, mortgages, pledges or encumbrances of any kind except (a) those, if any, reflected in such Financial Statements or (b) those that are not material in amount and do not adversely affect the use made and proposed to be made of such property by the Company or any subsidiary. The Company and its subsidiaries hold their respective leased properties under valid and binding leases, except as would not have a Material Adverse Effect. The Company and its subsidiaries own or lease all such properties as are materially necessary to their respective operations as now conducted.

4.17 Compliance and Regulatory. The Company and its subsidiaries are in compliance with all applicable Laws of the jurisdictions in which they are conducting their business, including all applicable local, state and federal environmental Laws (including Laws relating to the use, disposal or release of hazardous or toxic substances or relating to the protection or restoration of the environment or human exposure to hazardous or toxic substances), and all applicable Laws enforced by the United States Food and Drug Administration (the “FDA”), (including the Federal Food, Drug And Cosmetic Act, as amended, and the regulations promulgated thereunder) or any applicable laws enforced by equivalent Governmental Entities outside the United States, except where failures to be so in compliance, individually or in the aggregate, would not reasonably be expected to have a Material Adverse Effect. Any preclinical tests and studies or clinical trials conducted by, on behalf of, or sponsored by the Company or any of its subsidiaries (“Studies”), were and, if still pending, are being conducted in all material respects in accordance with all applicable laws and regulations and protocols governing the conduct of such Studies, the protocols, procedures and controls submitted to the FDA or any foreign governmental body exercising comparable authority (together with the FDA, the “Regulatory Authorities”), and any conditions of approval and policies imposed by any institutional review board, ethics review board or committee responsible for the oversight of such preclinical tests and studies and clinical trials. The descriptions of the Studies contained in the SEC Documents are accurate in all material respects; to the Knowledge of the Company, there are no other preclinical studies and clinical trials, the results of which are inconsistent with or would call into question the results described in the SEC Documents in any material respect; and neither the Company nor any of its subsidiaries has received any written notice or correspondence from the FDA or any other Regulatory Authority or institutional review board exercising comparable authority requiring or threatening the termination, suspension, or clinical hold of Studies, where such termination, suspension or clinical hold would reasonably be expected to have a Material Adverse Effect, and to the Knowledge of the Company, there are no reasonable grounds for the same.

4.18 Taxes. The Company and its subsidiaries have filed on a timely basis (giving effect to extensions) all required federal, state and foreign income and franchise tax returns and have timely paid or accrued all taxes shown as due thereon, including interest and penalties, and, to the Knowledge of the Company, there is no tax deficiency that has been or might be asserted or threatened against it or them that could have a Material Adverse Effect. All tax liabilities accrued through the date hereof have been adequately provided for on the books of the Company. There are no liens for material taxes upon the assets of the Company or any of its subsidiaries other than for current taxes not yet due and payable or for taxes that are being contested in good faith by appropriate proceedings and for which adequate reserves in accordance with GAAP has been made in the Company’s most recent financial statements included in the SEC Documents.

4.19 Investment Company. The Company is not, and immediately after receipt of payment for the Shares will not be, an “investment company” or an “affiliated person” of, or “promoter” or “principal underwriter” for an investment company, within the meaning of the Investment Company Act of 1940, as amended, and the rules and regulations of the Commission promulgated thereunder.

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4.20 Insurance. The Company maintains insurance underwritten by insurers of recognized financial responsibility, of the types and in the amounts that the Company reasonably believes is adequate for the businesses of the Company and its subsidiaries, including directors’ and officers’ liability insurance and insurance covering all real and personal property owned or leased by the Company or any of its subsidiaries against theft, damage, destruction, acts of vandalism and all other risks customarily insured against and against such risks which the Company believes it is prudent to insure against, with such deductibles as are customary for companies in the same or similar business, all of which insurance is in full force and effect.

4.21 Price of Common Stock. The Company has not taken, and will not take, and no Person acting on its behalf has taken or will take, directly or indirectly, any action designed to cause or result in, or that has constituted or that might reasonably be expected to constitute, the stabilization or manipulation of the price of any security of the Company to facilitate the sale or resale of the Shares.

4.22 Governmental Permits, Etc. The Company and its subsidiaries have all franchises, licenses, permits, certificates and other authorizations from such federal, state or local government or governmental agency, department or body that are currently necessary for the operation of their respective businesses as currently conducted, including, without limitation, all such certificates, approvals, authorizations, exemptions, licenses and permits required by the FDA or any other comparable Governmental Entities, including other Regulatory Authorities (collectively, “Permits”), except where the failure to possess such Permits would not reasonably be expected, individually or in the aggregate, to have a Material Adverse Effect. Neither the Company nor any of its subsidiaries has received any written notice requiring or threatening any revocation or modification of any such Permits, where such revocation or modification would reasonably be expected to have a Material Adverse Effect.

4.23 Internal Control over Financial Reporting; Disclosure Controls. The Company maintains internal control over financial reporting (as such term is defined in paragraph (f) of Rule 13a-15 under the Exchange Act) as required by Rule 13a-15 under the Exchange Act. Since the end of the Company’s most recent audited fiscal year, there has been no material weakness in the design or operation of the Company’s internal control over financial reporting (whether or not remediated) which are reasonably likely to adversely affect the Company’s ability to record, process, summarize and report financial information. The Company’s “disclosure controls and procedures” (as defined in Rule 13a-15(e) under the Exchange Act) are designed to provide reasonable assurance that all information (both financial and non-financial) required to be disclosed by the Company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the rules and forms of the Commission, and that all such information is accumulated and communicated to the Company’s management as appropriate to allow timely decisions regarding required disclosure.

4.24 Foreign Corrupt Practices. Neither the Company nor any of its subsidiaries nor, to the Knowledge of the Company, any director, officer, agent, employee or other Person acting on behalf of the Company or any of its subsidiaries, has, in the course of its actions for, or on behalf of, the Company or any subsidiary (a) used any corporate funds for any unlawful contribution, gift, entertainment or other unlawful expenses relating to political activity; (b) made any direct or indirect unlawful payment to any foreign or domestic government official or employee from corporate funds; (c) violated or is in violation of any provision of the U.S. Foreign Corrupt Practices Act of 1977, as amended, the UK Bribery Act 2010 or any similar Law; or (d) made any unlawful bribe, rebate, payoff, influence payment, kickback or other unlawful payment to any foreign or domestic government official or employee.

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4.25 Employee Relations. No material labor dispute with the employees of the Company or any of its subsidiaries, or with the employees of any principal supplier, manufacturer, customer or contractor of the Company or any of its subsidiaries, exists or, to the Knowledge of the Company, is threatened or imminent. No executive officer of the Company (as defined in Rule 501(f) promulgated under the Securities Act) has notified the Company that such officer intends to leave the Company or otherwise terminate such officer’s employment with the Company. To the Knowledge of the Company, no executive officer of the Company is, or is now expected to be, in violation of any material term of any employment contract, confidentiality, disclosure or proprietary information agreement, non-competition agreement, or any other agreement or any restrictive covenant involving or otherwise affecting such executive officer’s relationship with the Company, and the continued employment of each such executive officer does not subject the Company to any material liability with respect to any of the foregoing matters.

4.26 ERISA. The Company and its subsidiaries are in compliance in all material respects with all presently applicable provisions of the Employee Retirement Income Security Act of 1974, as amended, including the regulations and published interpretations thereunder (“ERISA”); no “reportable event” (as defined in ERISA) has occurred with respect to any “pension plan” (as defined in ERISA) for which the Company or any subsidiary would have any material liability; neither the Company nor any of its subsidiaries has not incurred or expects to incur material liability under (a) Title IV of ERISA with respect to termination of, or withdrawal from, any “pension plan” or (b) Sections 412 or 4971 of the Internal Revenue Code of 1986, as amended, including the regulations and published interpretations thereunder (the “Code”); and each “Pension Plan” for which the Company or any of its subsidiaries would have liability that is intended to be qualified under Section 401(a) of the Code is so qualified in all material respects and to the Knowledge of the Company, nothing has occurred, whether by action or by failure to act, which would cause the loss of such qualification.

4.27 Registration Rights and Other Stockholder Agreements. No Person has any right to cause the Company to effect the registration under the Securities Act covering the transfer of any securities of the Company and there are no other stockholders agreements, voting agreements or other similar agreements with respect to the Company’s capital stock to which the Company is a party or, to the Knowledge of the Company, between or among any of the Company’s stockholders.

4.28 Trading Market Compliance. The Company has not, in the previous twelve (12) months, received, nor is there any reasonable basis for, (i) written notice from the Trading Market that the Company is not in compliance with the listing or maintenance requirements of the Trading Market that would result in immediate delisting or (ii) any notification, Staff Delisting Determination, or Public Reprimand Letter (as such terms are defined in applicable listing rules of the Trading Market) that requires a public announcement by the Company of any noncompliance or deficiency with respect to such listing or maintenance requirements. The Company is in compliance with all listing and maintenance requirements of the Trading Market on the date hereof. The issuance and sale of the Shares hereunder does not contravene the rules and regulations of the Trading Market.

4.29 No “Bad Actor” Disqualification. No “bad actor” disqualifying event described in Rule 506(d)(1)(i)-(viii) of the Securities Act (a “Disqualification Event”) is applicable to the Company or, to the Knowledge of the Company, any Company Covered Person (as defined below), except for a Disqualification Event to which Rule 506(d)(2)(ii-iv) or (d)(3) is applicable. “Company Covered Person” means, with respect to the Company as an “issuer” for purposes of Rule 506 promulgated under the Securities Act, any person listed in the first paragraph of Rule 506(d)(1).

4.30 OFAC. None of the Company, any of its subsidiaries or, to the Knowledge of the Company, any director, officer, agent, employee, Affiliate or representative of the Company or any of its subsidiaries is a Person that is, or is more than 50 percent owned in the aggregate by or acting on behalf of one or more Persons that are, currently the subject or target of any sanctions administered or enforced by the United States Government, including, without limitation, the U.S. Department of the Treasury’s Office of Foreign Assets Control, the United Nations Security Council, the European Union, His Majesty’s Treasury, or other

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relevant sanctions authority (collectively, “Sanctions”), nor is the Company located, organized or resident in a country or territory that is the subject of Sanctions; and the Company will not directly or indirectly use the proceeds of the sale of the Shares, or lend, contribute or otherwise make available such proceeds to any subsidiaries, joint venture partners or other Person, to fund any activities of or business (i) with any Person, or in any country or territory, that, at the time of such funding, is a designated target of Sanctions, (ii) in or involving a country or territory which at the time of such funding is the subject of comprehensive country-wide or territory-wide Sanctions, or (iii) in any other manner that will result in a violation by any Person (including any Person participating in the transaction, whether as underwriter, advisor, investor or otherwise) of Sanctions. The Company has not knowingly engaged in, are not now knowingly engaged in, and will not engage in, any dealings or transactions with any Person, or in any country or territory, that at the time of the dealing or transaction is or was the subject of Sanctions.

4.31 Shell Company Status. The Company is not currently an issuer identified in Rule 144(i)(1).

4.32 Compliance with Anti-Money Laundering Laws. The operations of the Company and its subsidiaries are and have been conducted at all times in compliance in all material respects with applicable financial recordkeeping and reporting requirements, including those of the Currency and Foreign Transactions Reporting Act of 1970, as amended, the applicable money laundering statutes of all jurisdictions where the Company or any of its subsidiaries conducts business, the rules and regulations thereunder and any related or similar rules, regulations or guidelines issued, administered or enforced by any governmental or regulatory agency (collectively, the “Anti-Money Laundering Laws”) and no action, suit or proceeding by or before any court or governmental or regulatory agency, authority or body or any arbitrator involving the Company or any of its subsidiaries with respect to the Anti-Money Laundering Laws is pending or, to the Knowledge of the Company, threatened.

4.33 No Additional Agreements. The Company has no other agreements or understandings (including side letters) with any Purchaser or any other Person to purchase Shares on terms more favorable to such Purchaser than as set forth herein.

4.34 Transactions with Affiliates. Except for any Shares to be purchased hereunder, to the Knowledge of the Company, none of the officers or directors of the Company, the Company’s stockholders, the officers or directors of any stockholder of the Company, or any family member or affiliate of any of the foregoing, has either directly or indirectly any interest in, or is a party to, any transaction that would be required to be disclosed as a related party transaction pursuant to Item 404 of Regulation S-K promulgated under the Securities Act.

4.35 Security. Except as would not reasonably be expected to have a Material Adverse Effect, the Company and its subsidiaries’ information technology assets and equipment, computers, systems, networks, hardware, software, websites, applications, and databases (collectively, “IT Systems”) are adequate for, and operate and perform in all respects as required in connection with the operation of the business of the Company and its subsidiaries as currently conducted, and are free and clear of all Trojan horses, time bombs, malware and other malicious code. Except as would not reasonably be expected to have a Material Adverse Effect, the Company and its subsidiaries have implemented and maintained commercially reasonable physical, technical and administrative controls designed to maintain and protect the confidentiality, integrity, availability, privacy and security of all sensitive, confidential or regulated data (“Confidential Data”) used or maintained in connection with their businesses and Personal Data, and the integrity, availability continuous operation, redundancy and security of all IT Systems. “Personal Data” means the following data used in connection with the Company’s and its subsidiaries’ businesses and in

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their possession or control: (i) a natural person’s name, street address, telephone number, e-mail address, photograph, social security number or other tax identification number, driver’s license number, passport number, credit card number, bank information, or customer or account number; (ii) information that identifies, relates to, or may reasonably be used to identify an individual; (iii) any information regarding an individual’s medical history, mental or physical condition, or medical treatment or diagnosis by a health care professional; (iv) an individual’s health insurance policy number or subscriber identification number, any unique identifier used by a health insurer to identify the individual, or any information in an individual’s application and claims history; (v) any information which would qualify as “protected health information” under the Health Insurance Portability and Accountability Act of 1996, as amended by the Health Information Technology for Economic and Clinical Health Act (collectively, “HIPAA”); (vi) any information which would qualify as “personal data,” “personal information” (or similar term) under the Privacy Laws (as defined in Section 4.36); and (vii) any other piece of information that alone, or combined with other information, allows the identification of such natural person, or his or her family, or permits the collection or analysis of any data related to an identified person’s health or sexual orientation. To the Knowledge of the Company and except as would not reasonably be expected to have a Material Adverse Effect, during the past three (3) years, there have been no breaches, outages or unauthorized uses of or accesses to the IT Systems, Confidential Data, and Personal Data.

4.36 Compliance with Data Privacy Laws. The Company and its subsidiaries are, and at all prior times were, in material compliance with all applicable state and federal data privacy and security Laws and regulations regarding the collection, use, storage, retention, disclosure, transfer, disposal, or any other processing (collectively “Process” or “Processing”) of Personal Data, including HIPAA, the California Consumer Privacy Act, and the European Union General Data Protection Regulation (EU 2016/679) (collectively, the “Privacy Laws”). To ensure compliance with the Privacy Laws, the Company and its subsidiaries have in place, comply with, and take all appropriate steps necessary to ensure compliance in all material respects with their policies and procedures relating to data privacy and security, and the Processing of Personal Data and Confidential Data (the “Privacy Statements”). The Company and its subsidiaries have, except as would not reasonably be expected, individually or in the aggregate, to have a Material Adverse Effect, at all times since January 1, 2023 provided accurate notice of its Privacy Statements then in effect to its clients, employees, third party vendors and representatives. None of such disclosures made or contained in any Privacy Statements have been materially inaccurate, misleading, incomplete, or in material violation of any Privacy Laws. The Company further represents that neither it nor any of its subsidiaries: (i) has received notice of any actual or potential claim, complaint, proceeding, regulatory proceeding or liability under or relating to, or actual or potential violation of, any of the Privacy Laws, contracts related to the Processing of Personal Data or Confidential Data, or Privacy Statements, and has no knowledge of any event or condition that would reasonably be expected to result in any such notice; (ii) is currently conducting or paying for, in whole or in part, any investigation, remediation, or other corrective action pursuant to any Privacy Law or contract; or (iii) is a party to any order, decree, or agreement that imposes any obligation or liability under any Privacy Law.

SECTION 5. REPRESENTATIONS, WARRANTIES AND COVENANTS OF THE PURCHASERS.

Each Purchaser, severally and not jointly, represents and warrants to and covenants with the Company and the Placement Agent that:

5.1 Risk. Such Purchaser, taking into account the personnel and resources it can practically bring to bear on the purchase of the Shares contemplated hereby, is knowledgeable, sophisticated and experienced in making, and is qualified to make, decisions with respect to investments in securities presenting an investment decision like that involved in the purchase of the Shares, including investments in securities issued by the Company, and has requested, received, reviewed and considered all information such Purchaser deems relevant (including the SEC Documents) in making an informed decision to purchase the Shares. Such Purchaser (a) has conducted its own investigation of the Company and the Shares and it has

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not relied on any statements or other information provided by the Placement Agent concerning the Company or the Shares or the offer and sale of the Shares, (b) has had access to, and an adequate opportunity to review, financial and other information as it deems necessary to make its decision to purchase the Shares, (c) has been offered the opportunity to ask questions of the Company and received answers thereto, including on the financial information, as it deemed necessary in connection with its decision to purchase the Shares, and (d) has made its own assessment and has satisfied itself concerning the relevant tax and other economic considerations relevant to its investment in the Shares. Such Purchaser is able to fend for itself in the transactions contemplated herein; has such knowledge and experience in financial and business matters as to be capable of evaluating the merits and risks of its prospective investment in the Shares; and has the ability to bear the economic risks of its prospective investment in the Shares and can afford the complete loss of such investment.

5.2 Purchase for Investment. Purchaser is acquiring the Shares pursuant to this Agreement for its own account for investment only and with no present intention of distributing any of such Shares or any arrangement or understanding with any other Persons regarding the distribution of such Shares, except in compliance with Section 5.4.

5.3 Reliance. Such Purchaser understands that the Shares are being offered and sold to it in reliance upon specific exemptions from the registration requirements of the Securities Act, the rules and regulations thereunder, and state securities laws and that the Company is relying upon the truth and accuracy of, and such Purchaser’s compliance with, the representations, warranties, agreements, acknowledgments and understandings of such Purchaser set forth herein in order to determine the availability of such exemptions and the eligibility of such Purchaser to acquire the Shares. If any of the representations and warranties made by such Purchaser herein are no longer accurate in all material respects prior to Closing, such Purchaser shall promptly notify the Company. If such Purchaser is acquiring the Shares as a fiduciary or agent for one or more investor accounts, it represents that it has sole investment discretion with respect to each such account and it has full power to make the foregoing representations, acknowledgements and agreements on behalf of such account.

5.4 Compliance with the Securities Act. Such Purchaser will not, directly or indirectly, offer, sell, pledge, transfer or otherwise dispose of (or solicit any offers to buy, purchase or otherwise acquire or take a pledge of) any of the securities purchased hereunder except in compliance with the Securities Act, applicable blue sky laws, and the rules and regulations promulgated thereunder.

5.5 Accredited Investor. Such Purchaser is (a) a qualified purchaser (as defined in Section 2(a)(51)(A) of the Investment Company Act of 1940, as amended), (b) a qualified institutional buyer (as defined in Rule 144A of the Securities Act), and/or (c) an accredited investor as described in Rule 501(a)(1), (2), (3) or (7) of the Securities Act. Purchaser acknowledges that it has been informed that the offering of the Shares meets the exemptions from filing under Financial Industry Regulatory Authority (“FINRA”) Rule 5123(b)(1)(B), (C) or (J).

5.6 Power and Authority. Such Purchaser has all requisite corporate power, and has taken all requisite corporate action, to authorize, execute and deliver this Agreement and each of the other agreements and instruments contemplated herein to which the Purchaser is a party, to consummate the transactions contemplated herein and therein and to carry out and perform all of such Purchaser’s obligations hereunder and thereunder. Upon the execution and delivery of this Agreement, this Agreement shall constitute a valid and binding obligation of such Purchaser, enforceable in accordance with its terms, except (i) as limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws relating to or affecting the enforcement of creditors’ rights generally and (ii) as limited by equitable principles generally, including any specific performance.

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5.7 Broker Dealer. Such Purchaser is not a broker or dealer registered pursuant to Section 15 of the Exchange Act.

5.8 Sophisticated Investor. Such Purchaser (a) acknowledges that it is a sophisticated investor engaged in the business of assessing and assuming investment risks with respect to securities, including securities such as the Shares, and further acknowledges that the Company is entering into this Agreement in reliance on this acknowledgment and said Purchaser’s understanding, acknowledgment and agreement that the Purchaser may have agreed in writing with the Company or the Placement Agent to receive information regarding certain confidential matters as part of its due diligence review that may represent material, non-public information of the Company, (b) acknowledges that it is aware of the restrictions imposed by United States securities laws on the purchase or sale of securities by any Person who has received material, non-public information from the issuer of such securities and on the communication of such information to any other Person when it is reasonably foreseeable that such other Person is likely to purchase or sell such securities in reliance upon such information, (c) is an institutional account as defined in FINRA Rule 4512(c), (d) is a sophisticated investor, experienced in investing in private equity transactions and capable of evaluating investment risks independently, both in general and with regard to all transactions and investment strategies involving a security or securities, and (e) has exercised independent judgment in evaluating our participation in the purchase of the Shares. Purchaser acknowledges that the offering of the Shares meets (i) the exemptions from filing under FINRA Rule 5123(b)(1)(A) and (ii) the institutional customer exemption under FINRA Rule 2111(b).

5.9 Other Securities Transactions. Such Purchaser has not, either directly or indirectly through any person acting on behalf of or pursuant to any understanding with such Purchaser, engaged in any Short Sales since the time that the Purchaser was first contacted by the Company or the Placement Agent or any other Person regarding the transactions contemplated hereby until the date hereof. Notwithstanding the foregoing, (a) in the case of a Purchaser that is a multi-managed investment vehicle whereby separate portfolio managers manage separate portions of such Purchaser’s assets, the representation set forth above shall only apply with respect to the portion of assets managed by the portfolio manager that made the investment decision to purchase the Shares covered by this Agreement and (b) in the case of a Purchaser that is affiliated with other funds or investment vehicles or whose investment advisor or sub-advisor that routinely acts on behalf of or pursuant to an understanding with such Purchaser is also an investment advisor or sub-advisor to other funds or investment vehicles, the representation set forth above shall only apply with respect to the personnel of such other funds or investment vehicles or such investment advisor or sub-advisor who had knowledge of the transactions contemplated hereby and not with respect to any personnel who have been effectively walled off by appropriate information barriers.

5.10 Independent Advice. Such Purchaser understands that nothing in this Agreement or any other materials presented to such Purchaser by or on behalf of the Company in connection with the purchase and sale of the Shares constitutes legal, tax or investment advice. Such Purchaser has consulted such legal, tax and investment advisors as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of the Shares. In connection with the issue and purchase of the Shares, the Placement Agent has acted solely as the agent of the Company in this placement of the Shares and has not acted as an underwriter or as a financial advisor or fiduciary of such Purchaser. No disclosure or offering document has been prepared in connection with the offer and sale of the Shares by the Placement Agent. Each Purchaser agrees that the Placement Agent shall not be liable to it (including in contract, tort, under federal or state securities laws or otherwise) for any action heretofore or hereafter taken or omitted to be taken by the Placement Agent in connection with the private placement of Shares hereunder, or for any improper payment made in accordance with the information provided by the Company. The Placement Agent and its directors, officers, employees, representatives and controlling persons have made no independent investigation with respect to the Company or the Shares or the accuracy, completeness or adequacy as of any date of any information set forth in, or any omission from, any valuation or other materials that may

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have been provided or made available to the Purchaser in connection with the transactions contemplated hereby. Each Purchaser is not relying upon, and has not relied upon, any statement, representation or warranty made by any person, including, without limitation, the Placement Agent, except for the statements, representations and warranties made by the Company and contained in this Agreement and the SEC Documents.

5.11 Legends. Such Purchaser understands that, until such time as the Shares may be sold pursuant to an effective registration statement or Rule 144 under the Securities Act (“Rule 144”) (or any other applicable exemption from the registration requirements under the Securities Act), any certificates representing the Shares, whether maintained in a book entry system or otherwise, will bear one or more legends in substantially the following form and substance:

“THE SHARES EVIDENCED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR ANY OTHER APPLICABLE SECURITIES LAWS AND HAVE BEEN ISSUED IN RELIANCE UPON AN EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT AND SUCH OTHER SECURITIES LAWS. NEITHER THIS SECURITY NOR ANY INTEREST OR PARTICIPATION HEREIN MAY BE REOFFERED, SOLD, ASSIGNED, TRANSFERRED, PLEDGED, ENCUMBERED, HYPOTHECATED OR OTHERWISE DISPOSED OF, EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT OR PURSUANT TO A TRANSACTION WHICH IS EXEMPT FROM, OR NOT SUBJECT TO, SUCH REGISTRATION, IN EACH CASE IN ACCORDANCE WITH ALL APPLICABLE SECURITIES LAWS.”

In addition, any stock certificates, whether maintained in a book entry system or otherwise, representing the Shares may contain any legend required by the blue sky laws of any state to the extent such laws are applicable to the sale of such Shares hereunder. The Company shall promptly help (i) facilitate the removal of such legend and the delivery of such Shares to a brokerage account designated by the Purchaser as soon as the Shares become eligible for resale by non-Affiliates without any volume limitations or other restrictions pursuant to Rule 144(b)(1)(i) or any other rule of similar effect, including by causing the Company’s counsel to promptly render a customary legal opinion to the Company’s transfer agent, and (ii) to facilitate any transfer of the Shares under Rule 144 that may be requested by Purchasers, in accordance with Section 8.7.

5.12 Restricted Securities. Such Purchaser understands that the Shares are characterized as “restricted securities” under the federal securities laws inasmuch as they are being acquired from the Company in a transaction not involving a public offering and that under such laws and applicable regulations such Shares may be resold without registration under the Securities Act only in certain limited circumstances. Accordingly, such Purchaser represents that it is familiar with Rule 144 of the Securities Act, as presently in effect, and understands the resale limitations imposed thereby and by the Securities Act.

5.13 Beneficial Ownership. The purchase by the Purchaser of the Shares issuable to it at the Closing will not result in the Purchaser (individually or together with any other Person with whom the Purchaser has identified, or will have identified, itself as part of a “group” in a public filing made with the Commission involving the Company’s securities, where such aggregation would be made according to Section 13(d) of the Exchange Act) acquiring, or obtaining the right to acquire, in excess of 19.999% of the outstanding shares of Common Stock or the voting power of the Company on a post-transaction basis that assumes that such Closing shall have occurred. The Purchaser does not presently intend to, alone or together with others, make a public filing with the Commission to disclose that it has (or that it together with such other Persons have) acquired, or obtained the right to acquire, as a result of such Closing (when added to any other

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securities of the Company that it or they then own or have the right to acquire), in excess of 19.999% of the outstanding shares of Common Stock or the voting power of the Company on a post-transaction basis that assumes that each Closing shall have occurred (including assuming the effectiveness of any “blocker” or similar limitations on beneficial ownership contained in the applicable documentation for the Shares).

SECTION 6. REGISTRATION OF THE SHARES AND COMPLIANCE WITH THE SECURITIES ACT.

6.1 Registration Procedures and Expenses.

(a) Secondary Registration Statement. The Company shall prepare and file, on or before the date that is forty-five (45) days after the Closing (the “Filing Deadline”), with the Commission a Registration Statement on Form S-3 (except if the Company is not then eligible to register for resale the Shares (together with any shares of capital stock issued or issuable, from time to time, upon any reclassification, share combination, share subdivision, stock split, share dividend or similar transaction or event or otherwise as a distribution on, in exchange for or with respect to any of the foregoing, in each case held at the relevant time by a Purchaser the “Registrable Securities”), on Form S-3, in which case such registration shall be on Form S-1), as appropriate (the “Secondary Registration Statement”), relating to and providing for the resale of the Shares by the Purchasers on a continuous basis pursuant to Rule 415 under the Securities Act or, if Rule 415 is not available for offers and sales of the Registrable Securities, by such other means of distribution of Registrable Securities as the Purchasers may reasonably specify. Notwithstanding the foregoing, if the Commission prevents the Company from including any or all of the Registrable Securities on the Secondary Registration Statement due to limitations on the use of Rule 415 of the Securities Act for the resale of the Registrable Securities (and notwithstanding that the Company used diligent efforts to advocate with the staff of the Commission for the registration of all or a greater portion of the Registrable Securities), the Secondary Registration Statement shall register for resale such number of Registrable Securities that is equal to the maximum number of Registrable Securities as is permitted by the Commission. In such event, the number of Registrable Securities for which resale is to be registered for each selling shareholder named in the Secondary Registration Statement shall be reduced pro rata among all such selling shareholders and as promptly as practicable after being permitted to register additional Registrable Securities under Rule 415 under the Securities Act, the Company shall amend the Secondary Registration Statement or file one or more new registration statement(s) (such amendment or new registration statement, a “Remainder Registration Statement”) to register such additional Registrable Securities not included in the Secondary Registration Statement and cause such Remainder Registration Statement to become effective as promptly as practicable after the filing thereof, but in any event no later than thirty (30) calendar days after the filing of such Remainder Registration Statement (the “Remainder Effectiveness Deadline”); provided, that the Remainder Effectiveness Deadline shall be extended to sixty (60) calendar days after the filing of such Remainder Registration Statement if the SEC notifies the Company that it will “review” such Remainder Registration Statement; provided, further, notwithstanding the foregoing, that the Company shall use reasonable best efforts to have such Remainder Registration Statement declared effective within five (5) business days after the date the Company is notified orally or in writing (whichever is earlier) by the Commission that such Remainder Registration Statement will not be reviewed or will not be subject to further review. Any failure by the Company to file the Secondary Registration Statement by the Filing Deadline or to effect the Secondary Registration Statement by the Effectiveness Deadline or the Remainder Registration Statement by the Remainder Effectiveness Deadline shall not otherwise relieve the Company of its obligations to file or effect the Secondary Registration Statement or Remainder Registration Statement set forth in this Section 6.1(a).

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(b) The Company shall use its reasonable best efforts, subject to receipt of necessary information from the Purchasers, to cause the Commission to declare a Secondary Registration Statement covering the Shares effective as soon as practicable after the date of the filing thereof and in any event no later than the earlier of (i) sixty (60) days after such filing if the Secondary Registration Statement has been filed on Form S-3, and no later than ninety (90) days after such filing if such Secondary Registration Statement has been filed on Form S-1, and in either case, no later than forty-five (45) days after such filing in the event the Secondary Registration Statement is not reviewed by the Commission and (ii) the fifth (5th) Business Day after the date the Company is notified (orally or in writing, whichever is earlier) by the Commission that the Secondary Registration Statement will not be reviewed or will not be subject to further review (in either case, such date, the “Effectiveness Deadline”).

(c) The Company shall promptly prepare and file with the Commission such amendments and supplements to the Secondary Registration Statement and the prospectus used in connection therewith as may be necessary to keep the Secondary Registration Statement effective until the earliest of (i) such time as all of the Shares purchased by the Purchasers pursuant to the terms of this Agreement have been sold pursuant to the Secondary Registration Statement, or (ii) such time as the Shares become eligible for resale by non-Affiliates without any volume limitations or other restrictions pursuant to Rule 144(b)(1)(i) or any other rule of similar effect.

(d) Notwithstanding the foregoing obligations, the Company may, upon written notice to the Purchasers, for a reasonable period of time, not to exceed forty-five (45) days in the case of clauses (A) and (B) below, or thirty (30) days in the case of clause (C) below (each, a “Blackout Period”), delay the filing of a Secondary Registration Statement or a request for acceleration of the effective date, or suspend the effectiveness of any Secondary Registration Statement, in the event (A) of a pending significant corporate development with respect to the Company that, upon advice of legal counsel, the Company’s Board of Directors determines in good faith to be material and would require additional disclosure by the Company in the Secondary Registration Statement of such information that the Company has a bona fide business purpose for keeping confidential and the non-disclosure of which in the Registration Statement would be expected, in the reasonable determination of the Company’s Board of Directors, upon advice of legal counsel, to cause the Registration Statement to fail to comply with applicable disclosure requirements, (B) the Company does not yet have appropriate financial statements of any acquired or to be acquired entities necessary for filing, either because such financial statements are not yet available or despite the Company using reasonable best efforts to procure such financial statements, or (C) any other event occurs that makes any statement of a material fact made in such Secondary Registration Statement, including any document incorporated by reference therein, untrue or that requires the making of any additions or changes in the Registration Statement in order to make the statements therein not misleading; provided, however, that in the case of a Blackout Period pursuant to clause (A) above, the Blackout Period shall terminate upon the earlier of (i) such forty-five (45) day period or (ii) the completion, resolution or public announcement of the relevant transaction or event. If the Company suspends the effectiveness of a Secondary Registration Statement pursuant to this Section 6.1(d), the Company shall, as promptly as reasonably practicable following the termination of the circumstance which entitled the Company to do so, take such actions as may be necessary to reinstate the effectiveness of such Secondary Registration Statement and give written notice to the Purchasers authorizing the Purchasers to resume offerings and sales pursuant to such Registration Statement. If as a result thereof the prospectus included in such Secondary Registration Statement has been amended or supplemented to comply with the requirements of the Securities Act, the Company shall enclose such revised prospectus with the notice to each Purchaser given pursuant to this Section 6. The Company shall be entitled to exercise its rights under this Section 6.1(d) not more than once in any six (6) month period; provided, however, that the aggregate number of days of all Blackout Periods hereunder shall not exceed sixty (60) days in any twelve (12) month period. After the expiration of any Blackout Period and without further request from any Purchaser, the Company shall effect the filing of amendments or supplements to the Secondary Registration Statement, or the filing of other documents, as

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necessary to allow the Purchasers to resell the Registrable Securities as set forth herein. In providing to a Purchaser the written notice of a Blackout Period as contemplated by the first sentence of this Section 6.1(d), the Company shall not (without the prior written consent of such Purchaser) disclose to such Purchaser any material nonpublic information giving rise to or otherwise associated with such Blackout Period.

(e) Upon notification by the Commission that the Secondary Registration Statement will not be reviewed or is not subject to further review by the Commission, the Company shall within three Business Days following the date of such notification request acceleration of such Secondary Registration Statement (with the requested effectiveness date to be not more than two Business Days later).

(f) The Company shall furnish to the Purchasers with respect to the Shares registered under any Secondary Registration Statement (and to each underwriter, if any, of such Shares) such number of copies of prospectuses and such other documents as the Purchaser may reasonably request, in order to facilitate the public sale or other disposition of all or any of the Shares by the Purchaser.

(g) The Company shall bear all expenses in connection with the procedures in paragraphs (a) through (f) of this Section 6.1 and the registration of the Shares pursuant to the Secondary Registration Statement, other than fees and expenses, if any, of counsel or other advisers to the Purchasers or underwriting discounts, brokerage fees and commissions incurred by the Purchaser, if any in connection with the offering of the Shares pursuant to the Secondary Registration Statement.

(h) In order to enable the Purchasers to sell the Shares under Rule 144 (or its successor rule) and any other rule or regulation of the Commission that may at any time permit the Purchasers to sell shares of Common Stock to the public without registration, the Company shall use its reasonable best efforts to comply with the requirements of Rule 144, including without limitation, (i) make and keep adequate current public information available, as those terms are understood and defined in Rule 144 and (ii) timely file all reports and other documents required to be filed by the Company under the Exchange Act.

(i) The Company shall provide the Purchasers a reasonable opportunity to review and comment on all disclosures regarding the Purchasers and any plan of distribution proposed by them in connection with the preparation of any Secondary Registration Statement not less than five (5) Business Days prior to the filing of such Secondary Registration Statement. Notwithstanding anything to the contrary contained herein, in no event shall the Company be permitted to name any Purchaser or Affiliate of a Purchaser as an “underwriter” without the prior written consent of such Purchaser; provided, that if the Commission requires that a Purchaser be identified as a statutory underwriter in either the Secondary Registration Statement or a Remainder Registration Statement, such Purchaser will have the option, in its sole and absolute discretion, to either (i) have the opportunity to withdraw from the Secondary Registration Statement or Remainder Registration Statement, as the case may be, upon its prompt written request to the Company or (ii) be included as such in the Secondary Registration Statement or Remainder Registration Statement, as the case may be.

6.2 Restrictions on Transfer. Each Purchaser agrees that it will not effect any disposition of the Shares that would constitute a sale within the meaning of the Securities Act or pursuant to any applicable state securities laws, unless and until (1) there is then in effect a registration statement under the Securities Act covering such proposed disposition and such disposition is made in accordance with such registration statement or (2) such disposition is otherwise permitted by law, including pursuant to the procedures set forth in Rule 144 or any other applicable exemption from the registration requirements under the Securities Act. Notwithstanding the preceding sentence, no restriction shall apply to a transfer by a Purchaser that is (i) a partnership transferring to its partners or former partners in accordance with partnership interests, or (ii) a limited liability company transferring to its members or former members in accordance with member interests.

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6.3 Indemnification. For the purpose of this Section 6.3: (i) the term “Purchaser/Affiliate” shall mean any officer, director, agent, partner, member, manager, stockholder, affiliate or employees of the Purchaser and any investment adviser of a Purchaser, or any transferee who is an affiliate of a Purchaser, and any person who controls a Purchaser or any affiliate of a Purchaser within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act (and the officers, directors, partners, members, managers, stockholders, agents, investment advisers and employees of each such controlling person); and (ii) the term “Registration Statement” shall include any preliminary prospectus, final prospectus (the “Prospectus”), free writing prospectus, exhibit, supplement or amendment included in or relating to, and any document incorporated by reference in, the Secondary Registration Statement and any Remainder Registration Statement filed pursuant to this Agreement.

(a) The Company agrees to indemnify and hold harmless each Purchaser and each Purchaser/Affiliate, against any losses, claims, damages, liabilities or expenses, joint or several, that such Purchaser or Purchaser/Affiliate incurs, under the Securities Act, the Exchange Act, or any other federal or state statutory law or regulation, or at common law or otherwise (including in settlement of any litigation, if such settlement is effected with the written consent of the Company, such consent not to be unreasonably withheld or delayed), insofar as such losses, claims, damages, liabilities or expenses (or actions in respect thereof as contemplated below) (i) arise out of or are based upon any untrue statement or alleged untrue statement of any material fact contained in the Registration Statement, including the Prospectus, financial statements and schedules, and all other documents filed as a part thereof or incorporated by reference therein, as amended at the time of effectiveness of the Registration Statement, including any information deemed to be a part thereof as of the time of effectiveness pursuant to paragraph (b) of Rule 430A under the Securities Act, or pursuant to Rules 430B, 430C or 434 under the Securities Act, or the Prospectus, in the form first filed with the Commission pursuant to Rule 424(b) under the Securities Act, or filed as part of the Registration Statement at the time of effectiveness if no Rule 424(b) filing is required or any amendment or supplement thereto, or arise out of or are based upon the omission or alleged omission to state in any of them a material fact required to be stated therein or necessary to make the statements in the Registration Statement or any amendment or supplement thereto not misleading or in the Prospectus or any amendment or supplement thereto not misleading in light of the circumstances under which they were made, (ii) any violation or alleged violation by the Company or its agents of the Securities Act, the Exchange Act, or any other federal or state securities law or any rule or regulation thereunder, in connection with the performance or non-performance of its obligations under this Agreement or any action or inaction required of the Company in connection with any registration or (iii) arise out of or are based in whole or in part on any inaccuracy in the representations or warranties of the Company contained in this Agreement, breach of any covenant of the Company contained in this Agreement or any failure of the Company to perform its other obligations hereunder or under law, and will promptly reimburse each Purchaser and each Purchaser/Affiliate for any legal and other out-of-pocket expenses as such expenses are reasonably incurred and documented by such Purchaser or such Purchaser/Affiliate in connection with investigating, defending or preparing to defend, settling, compromising or paying any such loss, claim, damage, liability, expense or action; provided, however, that the Company will not be liable for amounts paid in settlement of any such loss, claim, damage, liability or action if such settlement is effected without the written consent of the Company, which consent shall not be unreasonably withheld or delayed, and the Company will not be liable in any such case to the extent that any such loss, claim, damage, liability or expense arises out of or is based upon (i) an untrue statement or alleged untrue statement or omission or alleged omission made in the Registration Statement, the Prospectus or any amendment or supplement thereto in reliance upon and in conformity with written information furnished to the Company by or on behalf of the Purchaser expressly for use therein, or (ii) the inaccuracy of any representation or warranty made by such Purchaser herein or (iii) any statement or omission in any Prospectus that is corrected in any subsequent Prospectus that was delivered to the Purchaser prior to the pertinent sale or sales by the Purchaser.

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(b) Each Purchaser will severally, but not jointly, indemnify and hold harmless the Company, each of its directors, each of its officers who signed the Registration Statement and each person, if any, who controls the Company within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act, against any losses, claims, damages, liabilities or expenses that the Company, each of its directors, each of its officers who signed the Registration Statement or controlling person reasonably incurs, under the Securities Act, the Exchange Act, or any other federal or state statutory law or regulation, or at common law or otherwise (including in settlement of any litigation, but only if such settlement is effected with the written consent of such Purchaser, such consent not to be unreasonably withheld or delayed) insofar as such losses, claims, damages, liabilities or expenses (or actions in respect thereof as contemplated below) arise out of or are based upon any untrue or alleged untrue statement of any material fact contained in the Registration Statement, the Prospectus, or any amendment or supplement thereto, or arise out of or are based upon the omission or alleged omission to state therein a material fact required to be stated therein or necessary to make the statements in the Registration Statement or any amendment or supplement thereto not misleading or in the Prospectus or any amendment or supplement thereto not misleading in the light of the circumstances under which they were made, in each case to the extent, but only to the extent, that such untrue statement or alleged untrue statement or omission or alleged omission was made in the Registration Statement, the Prospectus, or any amendment or supplement thereto, in reliance upon and in conformity with written information furnished to the Company by or on behalf of such Purchaser expressly for use therein; and will reimburse the Company, each of its directors, each of its officers who signed the Registration Statement or controlling person for any legal and other expense reasonably incurred by the Company, each of its directors, each of its officers who signed the Registration Statement or controlling person in connection with investigating, defending, settling, compromising or paying any such loss, claim, damage, liability, expense or action; provided, however, that (i) each Purchaser’s aggregate liability under this Section 6 shall not exceed the amount of net proceeds received by such Purchaser on the sale of the Registrable Securities pursuant to the Registration Statement giving rise to such indemnification obligation, and (ii) a Purchaser will not be liable for amounts paid in settlement of any such loss, claim, damage, liability or action if such settlement is effected without the written consent of such Purchaser, and (iii) a Purchaser will not be liable in any such case to the extent that any such loss, claim, damage, liability or expense arises out of or is based upon the gross negligence, fraud or willful misconduct of the Company, any of Company’s directors, any of Company’s officers who signed the Registration Statement or any person who controls the Company within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act.

(c) Promptly after receipt by an indemnified party under this Section 6.3 of notice of the threat or commencement of any action, such indemnified party will, if a claim in respect thereof is to be made against an indemnifying party under this Section 6.3 promptly notify the indemnifying party in writing thereof, but the omission to notify the indemnifying party will not relieve it from any liability that it may have to any indemnified party for contribution or otherwise under the indemnity agreement contained in this Section 6.3 to the extent it is not prejudiced as a result of such failure. In case any such action is brought against any indemnified party and such indemnified party seeks or intends to seek indemnity from an indemnifying party, the indemnifying party will be entitled to participate in, and, to the extent that it may wish, jointly with all other indemnifying parties similarly notified, to assume the defense thereof with counsel reasonably satisfactory to such indemnified party; provided, however, if the defendants in any such action include both the indemnified party, and the indemnifying party and the indemnified party shall have reasonably concluded, based on an opinion of counsel reasonably satisfactory to the indemnifying party, that there may be a conflict of interest between the positions of the indemnifying party and the indemnified party in conducting the defense of any such action or that there may be legal defenses available to it and/or other indemnified parties that are different from or additional to those available to the indemnifying party,

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the indemnified party or parties shall have the right to select separate counsel to assume such legal defenses and to otherwise participate in the defense of such action on behalf of such indemnified party or parties. Upon receipt of notice from the indemnifying party to such indemnified party of its election to assume the defense of such action and approval by the indemnified party of counsel, the indemnifying party will not be liable to such indemnified party under this Section 6.3 for any legal or other expenses subsequently incurred by such indemnified party in connection with the defense thereof unless (i) the indemnified party shall have employed such counsel in connection with the assumption of legal defenses in accordance with the proviso to the preceding sentence (it being understood, however, that the indemnifying party shall not be liable for the expenses of more than one separate counsel, reasonably satisfactory to such indemnifying party, representing all of the indemnified parties who are parties to such action) or (ii) the indemnifying party shall not have employed counsel reasonably satisfactory to the indemnified party to represent the indemnified party within a reasonable time after notice of commencement of action, in each of which cases the reasonable fees and expenses of counsel shall be at the expense of the indemnifying party. In no event shall any indemnifying party be liable in respect of any amounts paid in settlement of any action unless the indemnifying party shall have approved in writing the terms of such settlement; provided that such approval shall not be unreasonably withheld or delayed. No indemnifying party shall, without the prior written consent of the indemnified party, effect any settlement of or consent to the entry of any judgment in any pending or threatened proceeding in respect of which any indemnified party is or could have been a party and indemnification could have been sought hereunder by such indemnified party, unless such settlement or judgment (x) includes an unconditional release of such indemnified party from all liability on claims that are the subject matter of such proceeding, (y) imposes no liability or obligation on the indemnified person and (z) does not include any admission of fault, culpability, wrongdoing or malfeasance by or on behalf of the indemnified person. The indemnifying party shall notify the indemnified party promptly of the institution, threat or assertion of any proceeding in connection with, arising out of, as a result of, relating to or based upon the transactions contemplated by this Agreement of which the indemnifying party is aware. Such indemnity shall remain in full force and effect regardless of any investigation made by or on behalf of such indemnified party and shall survive the transfer of any of the Shares by any of the Purchasers as permitted by this Agreement. Subject to the terms of this Agreement, all reasonable and documented fees and expenses of the indemnified party (including reasonable and documented fees and expenses to the extent incurred in connection with investigating or preparing to defend such proceeding in a manner not inconsistent with this Section 6.3) shall be paid to such indemnified party, as incurred, within ten (10) Business Days of written notice thereof to the indemnifying party, provided that the indemnified party shall promptly reimburse the indemnifying party for that portion of such fees and expenses applicable to such actions for which such indemnified party is finally judicially determined by a court of competent jurisdiction (which determination is not subject to appeal or further review) not to be entitled to indemnification hereunder.

(d) If the indemnification provided for in this Section 6.3 is required by its terms but is for any reason held to be unavailable to or otherwise insufficient to hold harmless an indemnified party under paragraphs (a), (b) or (c) of this Section 6.3 in respect to any losses, claims, damages, liabilities or expenses referred to herein, then each applicable indemnifying party shall contribute to the amount paid or payable by such indemnified party as a result of any losses, claims, damages, liabilities or expenses referred to herein (i) in such proportion as is appropriate to reflect the relative benefits received by the Company and the Purchaser from the private placement of Shares hereunder or (ii) if the allocation provided by clause (i) above is not permitted by applicable law, in such proportion as is appropriate to reflect not only the relative benefits referred to in clause (i) above but the relative fault of the Company and the Purchaser in connection with the statements or omissions or inaccuracies in the representations and warranties in this Agreement and/or the Registration Statement that resulted in such losses, claims, damages, liabilities or expenses, as well as any other relevant equitable considerations. The relative benefits received by the Company on the one hand and each Purchaser on the other shall be deemed to be in the same proportion as the amount paid by such Purchaser to the Company pursuant to this Agreement for the Shares purchased

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by such Purchaser that were sold pursuant to the Registration Statement bears to the difference (the “Difference”) between the amount such Purchaser paid for the Shares that were sold pursuant to the Registration Statement and the amount received by such Purchaser from such sale. The relative fault of the Company on the one hand and each Purchaser on the other shall be determined by reference to, among other things, whether the untrue or alleged statement of a material fact or the omission or alleged omission to state a material fact or the inaccurate or the alleged inaccurate representation and/or warranty relates to information supplied by the Company or by such Purchaser and the parties’ relative intent, knowledge, access to information and opportunity to correct or prevent such statement or omission. The amount paid or payable by a party as a result of the losses, claims, damages, liabilities and expenses referred to above shall be deemed to include, subject to the limitations set forth in paragraph (c) of this Section 6.3, any legal or other fees or expenses reasonably incurred by such party in connection with investigating or defending any action or claim. The provisions set forth in paragraph (c) of this Section 6.3 with respect to the notice of the threat or commencement of any threat or action shall apply if a claim for contribution is to be made under this paragraph (d); provided, however, that no additional notice shall be required with respect to any threat or action for which notice has been given under paragraph (c) for purposes of indemnification. The Company and the Purchaser agree that it would not be just and equitable if contribution pursuant to this Section 6.3(d) were determined solely by pro rata allocation (even if the Purchaser were treated as one entity for such purpose) or by any other method of allocation which does not take account of the equitable considerations referred to in this paragraph. Notwithstanding the provisions of this Section 6.3(d), (i) no Purchaser shall be required to contribute any amount in excess of the amount by which the Difference exceeds the amount of any damages that such Purchaser has otherwise been required to pay by reason of such untrue or alleged untrue statement or omission or alleged omission and (ii) each Purchaser’s aggregate liability under this Section 6.3 shall not exceed the amount of net proceeds received by such Purchaser on the sale of the Registrable Securities pursuant to the Registration Statement giving rise to such indemnification or contribution obligation. No person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Securities Act) shall be entitled to contribution from any person who was not guilty of such fraudulent misrepresentation. The Purchasers’ obligations to contribute pursuant to this Section 6.3(d) are several and not joint.

6.4 Information Available. The Company, upon the reasonable request of a Purchaser, shall make available for inspection by such Purchaser, any deemed underwriter participating in any disposition pursuant to the Secondary Registration Statement and any attorney, accountant or other agent retained by the Purchasers or any deemed underwriter, all financial and other records, pertinent corporate documents and properties of the Company.

6.5 Delay in Filing or Effectiveness of Secondary Registration Statement. If a Secondary Registration Statement covering the Shares is not filed on or prior to the Filing Deadline or is not declared effective by the Commission on or prior to the Effectiveness Deadline, then for each day following the Filing Deadline or Effectiveness Deadline, as applicable, until but excluding the date the Company files or the Commission declares the Secondary Registration Statement effective, as the case may be, the Company shall, for each such day, pay each Purchaser with respect to any such failure, as liquidated damages and not as a penalty, an amount per thirty (30)-day period equal to 1.0% of the purchase price paid by such Purchaser for its Shares pursuant to this Agreement (calculated on a daily pro rata basis for any portion of such thirty (30)-day period prior to the cure of such failure); and for any such thirty (30)-day period (or earlier period if such failure is cured prior to thirty (30) days), such payment shall be made no later than three (3) Business Days following such thirty (30)-day period (or earlier period if such failure is cured prior to thirty (30) days). Notwithstanding the foregoing provisions, in no event shall the Company be obligated to pay any liquidated damages pursuant to this Section 6.5 to more than one Purchaser in respect of the same Shares for the same period of time or in an aggregate amount that exceeds 5.0% of the purchase price paid by the Purchasers for the Shares pursuant to this Agreement. Such payments shall be made to the Purchasers in cash.

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SECTION 7. NO BROKER’S FEE.

Each of the Company and the Purchasers (on a several but not joint basis) hereby represents that no broker, investment banker, financial advisor or other individual, corporation, general or limited partnership, limited liability company, firm, joint venture, association, enterprise, joint securities company, trust, unincorporated organization or other entity is entitled to any broker’s, finder’s, financial advisor’s or other similar fee or commission in connection with the transactions contemplated by this Agreement, other than fees payable by the Company to the Placement Agent, which will be paid by the Company. The Company agrees to indemnify each Purchaser for any claims, losses or expenses incurred by such Purchaser as a result of the Company’s representation in this Section 7 being untrue.

SECTION 8. COVENANTS.

8.1 Form D; Blue Sky Filings. The Company agrees to timely file a Form D with respect to the Shares as required under Regulation D of the Securities Act. The Company will take such action as the Company shall reasonably determine is necessary in order to obtain an exemption from, or to qualify the Shares for, sale to the Purchasers at the Closing pursuant to this Agreement under applicable securities or “Blue Sky” laws of the states of the United States, and shall provide evidence of such actions promptly upon the written request of any Purchaser.

8.2 Transfer Taxes. On the Closing Date, all stock transfer or other taxes (other than income taxes) that are required to be paid in connection with the issuance, sale and delivery of the Shares to the Purchasers hereunder will be fully paid or provided for by the Company and all laws imposing such taxes will have been fully complied with and the Purchasers and their respective Affiliates shall have no obligation therefor.

8.3 Listing of Common Stock. The Company shall promptly secure the listing of the Shares upon the Trading Market and each other national securities exchange and automated quotation system that requires an application by the Company for listing, if any, upon which shares of Common Stock are then listed (subject to official notice of issuance) and shall maintain such listing, so long as any other shares of Common Stock shall be so listed. The Company shall use its reasonable best efforts to maintain the Common Stock’s listing on the Trading Market. The Company shall pay all fees and expenses in connection with satisfying its obligations under this Section 8.3.

8.4 Equal Treatment of Purchasers. No consideration (including any modification of documents related hereto) shall be offered or paid to any Person to amend or consent to a waiver or modification of any provision of this Agreement or any documents related hereto unless the same consideration is also offered to all Purchasers hereunder. For clarification purposes, this provision constitutes a separate right granted to each Purchaser by the Company and negotiated separately by each Purchaser, and is intended for the Company to treat the Purchasers as a class (subject to the proviso in the preceding sentence) and shall not in any way be construed as the Purchasers acting in concert or as a group (including a “group” within the meaning of Section 13(d)(3) of the Exchange Act) with respect to the purchase, disposition or voting of securities or otherwise. The Company does not have, and will not enter into, any agreement or understanding with any Purchaser that affords such Purchaser any rights or terms with respect to the transactions contemplated by this Agreement (including the exhibits hereto) that are more beneficial to such Purchaser than those afforded to all other Purchasers hereunder.

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8.5 Pledge of Shares. The Company acknowledges and agrees that a Purchaser’s Shares may be pledged by a Purchaser in connection with a bona fide margin agreement or other loan or financing arrangement that is secured by the Shares. The pledge of Shares shall not be deemed to be a transfer, sale or assignment of the Shares hereunder, and no Purchaser effecting a pledge of Shares shall be required to provide the Company with any notice thereof or otherwise make any delivery to the Company pursuant to this Agreement; provided that a Purchaser and its pledgee shall be required to comply with the provisions of this Agreement in order to effect a sale, transfer or assignment of Shares to such pledgee.

8.6 Subsequent Equity Sales. From the date hereof until the earlier of (i) the date the Secondary Registration Statement is declared effective by the Commission, and (ii) 60 days after the Effective Date, neither the Company nor any subsidiary shall issue, enter into any agreement to issue or announce the issuance or proposed issuance of any shares of Common Stock or Common Stock Equivalents. Notwithstanding the foregoing, this Section 8.6 shall not apply in respect of an Exempt Issuance or an Exempt Filing.

8.7 Legend Removal. The Company shall, at its sole expense, upon appropriate notice from any Purchaser stating that Registrable Securities have been sold pursuant to an effective Secondary Registration Statement, under Rule 144, or any other exemption from the registration requirements under the Securities Act, within two (2) Trading Days of such notice, cause its transfer agent to timely prepare and deliver certificates or book-entry shares representing the Shares to be delivered to a transferee pursuant to such sale, which certificates or book-entry shares shall be free of any restrictive legends and in such denominations and registered in such names as such Purchaser may request. Further, the Company shall, at its sole expense, cause its legal counsel or other counsel satisfactory to the transfer agent: (i) while the Secondary Registration Statement is effective, to issue to the transfer agent a “blanket” legal opinion to allow sales without restriction pursuant to the effective Secondary Registration Statement, and (ii) provide all other opinions as may reasonably be required by the transfer agent in connection with the removal of legends. A Purchaser may request that the Company remove, and the Company agrees to authorize the removal of, any legend from such Shares, following the delivery by a Purchaser to the Company or the Company’s transfer agent of either a legended certificate representing such Shares or, if the Shares are issued in book-entry form, a written request for legend removal: (i) following any sale of such Shares pursuant to Rule 144 or any other applicable exemption from the registration requirements under the Securities Act, (ii) if such Shares are eligible for sale under Rule 144(b)(1), or (iii) following the time that the Secondary Registration Statement is declared effective. If a legend removal request is made pursuant to the foregoing, the Company will, no later than two (2) Trading Days following the delivery by a Purchaser to the Company or the Company’s transfer agent of a legended certificate representing such Shares (or a request for legend removal, in the case of Shares issued in book-entry form), deliver or cause to be delivered to such Purchaser a certificate representing such Shares that is free from all restrictive legends or an equivalent book-entry position, as requested by the Purchaser. Certificates for Shares free from all restrictive legends may be transmitted by the Company’s transfer agent to a Purchaser by crediting the account of the Purchaser’s prime broker with the Depository Trust Company (“DTC”) as directed by such Purchaser. The Company warrants that the Shares shall otherwise be freely transferable on the books and records of the Company as and to the extent provided in this Agreement. If a Purchaser effects a transfer of the Shares in accordance with Section 5.11, the Company shall permit the transfer and shall promptly instruct its transfer agent to issue one or more certificates or credit shares to the applicable balance accounts at DTC in such name and in such denominations as specified by such Purchaser to effect such transfer. Each Purchaser hereby agrees that the removal of the restrictive legend pursuant to this Section 8.7 is predicated upon the Company’s reliance that such Purchaser will sell any such Shares pursuant to either the registration requirements of the Securities Act, including any applicable prospectus delivery requirements, or an exemption therefrom, and such Purchaser shall deliver a certificate reasonably satisfactory to the Company to the foregoing effect. Prior to the Company and its transfer agent agreeing to a form of representation letter to be given in connection with any legend removal opinion, the Company shall allow each Purchaser to review such form and shall cooperate, reasonably and in good faith, and accept reasonable comments thereto from the Purchasers; and provided, further, that in no event shall the Purchaser be required to agree to indemnify, defend or hold harmless any Person.

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SECTION 9. NOTICES.

All notices, requests, consents and other communications hereunder shall be in writing, shall be sent by confirmed facsimile or electronic mail, or mailed by first-class registered or certified airmail, or nationally recognized overnight express courier, postage prepaid, and shall be deemed given when so sent in the case of facsimile or electronic mail transmission, or when so received in the case of mail or courier, and addressed as follows:

(a) if to the Company, to:

OmniAb, Inc.

▇▇▇▇ ▇▇▇▇▇▇ ▇▇▇▇▇▇, ▇▇▇▇▇ ▇▇▇

Emeryville, CA 94608

Attn: ▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇▇

Email: [***]

with a copy to (which shall not constitute notice):

▇▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇▇

Email: [***]

with a copy to (which shall not constitute notice):

▇▇▇▇▇▇ & ▇▇▇▇▇▇▇ LLP

▇▇▇▇▇ ▇▇▇▇ ▇▇▇▇▇ ▇▇▇▇▇

San Diego, CA 92130

Attn: ▇▇▇▇▇▇▇ ▇. ▇▇▇▇

Email: ▇▇▇▇.▇▇▇▇@▇▇.▇▇▇

or to such other Person at such other place as the Company shall designate to the Purchasers in writing; and

(b) if to the Purchasers, to the applicable address set forth on such Purchaser’s signature page hereto or to such other Person at such other place as the Purchasers shall designate to the Company in writing.

SECTION 10. MISCELLANEOUS.

10.1 Waivers and Amendments. Neither this Agreement nor any provision hereof may be changed, waived, discharged, terminated, modified or amended except upon the written consent of the Company and, if prior to the Closing, Purchasers that have subscribed for at least a majority of the Shares to be issued hereunder, and, if after the Closing, Purchasers holding at least a majority of the Shares issued hereunder and then held by all Purchasers (such Purchasers, as applicable, the “Requisite Purchasers”), in the case of any change, discharge, termination, modification, or of the party hereto against whom the waiver is to be effective, in the case of a waiver, provided that (a) if any amendment or waiver disproportionately and adversely affects a Purchaser (or a subset of Purchasers) in any material respect, the consent of such disproportionately affected Purchaser (or each Purchaser within such subset of Purchasers) shall also be required and (b) the consent of each Purchaser shall be required for any change in the Purchase Price, any

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change in the type of security to be issued to Purchasers at Closing, or the amendment, modification or waiver of this Section 10.1, of Section 10.14, of Section 6, or of any of the closing conditions set forth in Sections 3.2(b)(i), 3.2(b)(iii) or 3.2(b)(v). No waiver of any default with respect to any provision, condition or requirement of this Agreement shall be deemed to be a continuing wavier in the future or a waiver of any subsequent default or a waiver of any other provision, condition or requirement hereof, nor shall any delay or omission of any party to exercise any right hereunder in any manner impair the exercise of any such right. The failure of any party at any time to require another party’s performance of any obligation under this Agreement shall not affect the right subsequently to require performance of that obligation.

10.2 Headings; Interpretation. The headings of the various sections of this Agreement have been inserted for convenience of reference only and shall not be deemed to be part of this Agreement. The terms “hereof,” “herein,” “hereby” and derivative or similar words refer to this Agreement as a whole and not to any particular provision of this Agreement. Except when used together with the word “either” or otherwise for the purpose of identifying mutually exclusive alternatives, the term “or” has the inclusive meaning represented by the phrase “and/or.” All references in this Agreement to “dollars” or “$” shall mean United States dollars. Except where the context otherwise requires, wherever used the singular shall include the plural, the plural the singular, the use of any gender shall be applicable to all genders. The term “including” or “includes” means “including without limitation” or “includes without limitation.”

10.3 Severability. In case any provision contained in this Agreement should be invalid, illegal or unenforceable in any respect, the validity, legality and enforceability of the remaining provisions contained herein shall not in any way be affected or impaired thereby.

10.4 Survival. The representations and warranties contained herein shall survive the Closing and the delivery of the Shares. The agreements and covenants contained herein shall survive for the applicable statute of limitations.

10.5 Governing Law; Jurisdiction. This Agreement shall be governed by and interpreted in accordance with the substantive laws of the State of New York, without regard to its or any other jurisdiction’s choice of law rules. Any and all disputes arising out of, concerning, or related to this Agreement, or to the interpretation, performance, breach or termination thereof shall be referred to and resolved by the federal courts located in New York, New York or, to the extent no such court does not have subject matter jurisdiction, the state courts of the State of New York located in New York, New York (the “Specified Courts”). Each of the parties hereto irrevocably and unconditionally submits to the exclusive jurisdiction of the Specified Courts, waives any objection to the laying of venue of any suit, action or proceeding brought in such courts and waives any claim that any such suit, action or proceeding brought in any such court has been brought in an inconvenient forum. EACH PARTY HEREBY WAIVES ITS RIGHTS TO A JURY TRIAL OF ANY CLAIM OR CAUSE OF ACTION BASED UPON OR ARISING OUT OF THIS AGREEMENT, THE OTHER TRANSACTION DOCUMENTS, THE SHARES OR THE SUBJECT MATTER HEREOF OR THEREOF. THE SCOPE OF THIS WAIVER IS INTENDED TO BE ALL-ENCOMPASSING OF ANY AND ALL DISPUTES THAT MAY BE FILED IN ANY COURT AND THAT RELATE TO THE SUBJECT MATTER OF THIS TRANSACTION, INCLUDING, WITHOUT LIMITATION, CONTRACT CLAIMS, TORT CLAIMS (INCLUDING NEGLIGENCE), BREACH OF DUTY CLAIMS, AND ALL OTHER COMMON LAW AND STATUTORY CLAIMS. THIS SECTION HAS BEEN FULLY DISCUSSED BY EACH OF THE PARTIES HERETO AND THESE PROVISIONS WILL NOT BE SUBJECT TO ANY EXCEPTIONS. EACH PARTY HERETO HEREBY FURTHER WARRANTS AND REPRESENTS THAT SUCH PARTY HAS REVIEWED THIS WAIVER WITH ITS LEGAL COUNSEL, AND THAT SUCH PARTY KNOWINGLY AND VOLUNTARILY WAIVES ITS JURY TRIAL RIGHTS FOLLOWING CONSULTATION WITH LEGAL COUNSEL.

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10.6 Counterparts. This Agreement may be executed in counterparts, each of which shall constitute an original, but all of which, when taken together, shall constitute but one instrument, and shall become effective when one or more counterparts have been signed by each party hereto and delivered to the other party. Signatures to this Agreement transmitted by facsimile, by email in “portable document format” (“.pdf”), or by any other electronic means intended to preserve the original graphic and pictorial appearance of this Agreement shall have the same effect as physical delivery of the paper document bearing original signature.

10.7 Successors and Assigns. Except as otherwise expressly provided herein, the provisions hereof shall inure to the benefit of, and be binding upon, the successors, assigns, heirs, executors and administrators of the parties hereto. None of the Purchasers may assign this Agreement or any rights or obligations hereunder, in whole or in part, without the prior written consent of the Company, such consent not to be unreasonably withheld, conditioned or delayed; provided, however, that a Purchaser may assign its rights and delegate its duties hereunder in whole or in part to an Affiliate or to a third party acquiring some or all of the Shares in a transaction complying with applicable securities laws without the prior written consent of the Company, provided such assignee agrees in writing to be bound by the provisions hereof that apply to Purchasers. The Company may not assign this Agreement or any rights or obligations hereunder, in whole or in part, without the prior written consent of all Purchasers. Without limiting the generality of the foregoing, in the event that the Company is a party to a merger, consolidation, share exchange or similar business combination transaction in which the Common Stock is converted into the equity securities of another Person, from and after the effective time of such transaction, such Person shall, by virtue of such transaction, be deemed to have assumed the obligations of the Company hereunder, the term “Company” shall be deemed to refer to such Person and the term “Shares” shall be deemed to refer to the securities received by the Purchasers in exchange therefor in connection with such transaction. Nothing in this Agreement, express or implied, is intended to confer upon any party other than the parties hereto or their respective permitted successors and assigns any rights, remedies, obligations, or liabilities under or by reason of this Agreement, except as expressly provided in this Agreement.

10.8 No Third-Party Beneficiaries. This Agreement is intended for the benefit of the parties hereto and the Placement Agent and their respective successors and permitted assigns and is not for the benefit of, nor may any provision hereof be enforced by, any other Person, except as otherwise set forth in Section 6.3 and this Section 10.8. Notwithstanding the foregoing, the Placement Agent shall be the third-party beneficiaries of the representations and warranties of the Company in Section 4 of this Agreement and the representations and warranties of the Purchasers in Section 5 of this Agreement. The parties further agree that the Placement Agent may rely on or, if the Placement Agent so request, be specifically named as an addressee of, the legal opinion to be delivered pursuant to this Agreement.

10.9 Entire Agreement. This Agreement and the other documents and instruments delivered pursuant hereto or thereto, including the exhibits and schedules hereto or thereto, constitute the full and entire understanding and agreement between the parties hereto with regard to the subjects hereof and thereof and supersede all prior agreements and understandings, both oral and written, between the parties with respect to the subject matter hereof and thereof, provided, that any written confidentiality agreement that the Company and any Purchaser entered into in contemplation of entering into this Agreement, shall survive in accordance with its terms and provisions.

10.10 Independent Nature of Purchasers’ Obligations and Rights. The obligations of each Purchaser under this Agreement are several and not joint with the obligations of any other Purchaser, and no Purchaser shall be responsible in any way for the performance of the obligations of any other Purchaser under this Agreement. The decision of each Purchaser to purchase Shares pursuant to this Agreement has been made by such Purchaser independently of any other Purchaser. Nothing contained herein and no action taken by any Purchaser pursuant thereto, shall be deemed to constitute the Purchasers as a partnership, an

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association, a joint venture or any other kind of entity, or create a presumption that the Purchasers are in any way acting in concert or as a group (within the meaning of Section 13(d) of the Exchange Act or otherwise), or are deemed affiliates (as such term is defined under the Exchange Act) with respect to such obligations or the transactions contemplated by this Agreement. Each Purchaser shall be entitled to independently protect and enforce its rights, including the rights arising out of this Agreement, and it shall not be necessary for any other Purchaser to be joined as an additional party in any proceeding for such purpose. Each Purchaser acknowledges (i) that it is not relying upon any Person other than the Company and its officers and directors, in making its investment or decision to invest in the Company and (ii) no other Purchaser has acted as agent for such Purchaser in connection with making its investment hereunder and that no Purchaser will be acting as agent of such Purchaser in connection with monitoring its investment in the Shares or enforcing its rights hereunder. Each Purchaser agrees that no Purchaser nor the respective controlling persons, officers, directors, partners, agents, or employees of any Purchaser shall be liable to any other Purchaser for any action heretofore or hereafter taken or omitted to be taken by any of them in connection with the purchase of the Shares. The Company acknowledges that each of the Purchasers has been provided with the same Agreement for the purpose of closing a transaction with multiple purchasers and not because it was required or requested to do so by any Purchaser. It is expressly understood that each provision contained in this Agreement is between the Company and a Purchaser, solely, and not between the Company and the Purchasers collectively and not between and among the Purchasers.

10.11 Payment of Fees and Expenses. Except as otherwise provided herein or in the other documents or instruments contemplated hereby, each of the Company and the Purchasers shall bear its own expenses and legal fees incurred on its behalf with respect to this Agreement and the transactions contemplated hereby.

10.12 Further Actions. Each party hereto agrees to execute, acknowledge, and deliver such further instruments, and to do all such other acts, as may be reasonably necessary or appropriate in order to carry out the purposes and intent of this Agreement.

10.13 Securities Law Disclosure. By no later than 9:00 A.M., New York City time, on the Trading Day immediately following the Effective Date (provided that, if this Agreement is executed between midnight and 9:00 A.M., New York City time on any Trading Day, no later than 9:01 A.M. on the Effective Date), the Company shall issue a press release and/or file a Current Report on Form 8-K with the Commission (the “Disclosure Document”) disclosing all material terms of the transactions contemplated by this Agreement; provided, that each of the Purchasers and the Placement Agent shall be given a reasonable opportunity to review and comment on the disclosure contained in the Disclosure Document prior to issuance or filing. In addition, unless it has already done so by filing the Disclosure Document, on or before the fourth (4^th) Business Day following the Effective Date, the Company shall file a Current Report on Form 8-K with the Commission disclosing all material terms of the transactions contemplated by this Agreement. From and after the issuance of the Disclosure Document, no Purchaser shall be in possession of any material non-public information received from the Company or from any other representative of the Company in connection with the transactions contemplated by this Agreement. All public announcements regarding this Agreement shall be issued only in accordance with Section 10.15.

10.14 Termination. This Agreement (i) shall be terminated automatically if the Closing has not been consummated on or prior to the fifth Business Day from the Effective Date, or (ii) may be terminated by a Purchaser (with respect to itself) if any of the conditions set forth in Section 3.2(a) or Section 3.2(b) shall have become incapable of fulfillment, and shall not have been waived by such Purchaser, provided, however, that no such termination will affect the right of any party to sue for any breach by the other party (or parties), and, upon such termination pursuant to this Section 10.14, any purchase price wired to the Company by a Purchaser shall be promptly returned to the Purchaser, but in no event later than the first Trading Day following such termination.

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10.15 Public Announcement. The Company shall not publicly disclose the name of any Purchaser or investment adviser of any Purchaser, or include the name of any Purchaser or an Affiliate of any Purchaser without the prior written consent of such Purchaser (i) in any press release or marketing materials or (ii) in any filing with the Commission or any regulatory agency or Trading Market, except as required by U.S. federal securities law (A) in connection with any Secondary Registration Statement contemplated by this Agreement and (B) to the extent such disclosure is required by law, request of the Commission’s staff or Trading Market regulations, in which case the Company shall provide the Purchasers with prior written notice of and an opportunity to review such disclosure permitted under this subclause (ii).

10.16 Placement Agent. The Company agrees that the Placement Agent, its affiliates and its representatives shall be entitled to (1) rely on, and shall be protected in acting upon, any certificate, instrument, opinion, notice, letter or any other document or security delivered to the Placement Agent or any Purchaser by or on behalf of the Company, and (2) be indemnified by the Company for acting as Placement Agent in accordance with the indemnification provisions set forth in the Engagement Letter.

[SIGNATURE PAGES FOLLOW]

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IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be executed by their duly authorized representatives as of the day and year first above written.

[SIGNATURE PAGE TO SECURITIES PURCHASE AGREEMENT]

IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be executed by their duly authorized representatives as of the day and year first above written.

[SIGNATURE PAGE TO SECURITIES PURCHASE AGREEMENT]

EXHIBIT A

D&O Lock-up

Form of Lock-Up Agreement

August 24, 2025

Leerink Partners LLC

as Placement Agent

▇▇▇▇ ▇▇▇▇▇▇ ▇▇ ▇▇▇ ▇▇▇▇▇▇▇▇, ▇▇▇ ▇▇▇▇▇

New York, New York 10019

Ladies and Gentlemen:

The undersigned, a stockholder, officer and/or director of OmniAb, Inc., a Delaware corporation (the “Company”), understands that Leerink Partners LLC (“Leerink Partners”) has been engaged by the Company as the placement agent in a proposed private placement (the “Private Placement”) of shares of the Company’s common stock, par value $0.0001 per share (the “Common Stock”). In recognition of the benefit that such Private Placement will confer upon the undersigned as a stockholder, an officer and/or a director of the Company, and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the undersigned agrees with ▇▇▇▇▇▇▇ Partners that, during the period beginning on the date hereof and ending on the date that is 60 days from the date of the definitive securities purchase agreement (the “Purchase Agreement”) to be entered into by the Company in connection with the Private Placement (the “Lock-Up Period”), the undersigned will not, without the prior written consent of Leerink Partners, directly or indirectly, (i) offer, pledge, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant for the sale of, or otherwise dispose of or transfer any shares of Common Stock or any securities convertible into or exchangeable or exercisable for Common Stock, whether now owned or hereafter acquired by the undersigned or with respect to which the undersigned has or hereafter acquires the power of disposition (collectively, the “Lock-Up Securities”), or exercise any right with respect to the registration of any of the Lock-Up Securities, or file or cause to be filed any registration statement in connection therewith, under the Securities Act of 1933, as amended, or (ii) enter into any swap or any other agreement or any transaction that transfers, in whole or in part, directly or indirectly, the economic consequence of ownership of the Lock-Up Securities, whether any such swap or transaction is to be settled by delivery of Common Stock or other securities, in cash or otherwise.

Notwithstanding the foregoing, and subject to the conditions below, the undersigned may transfer Lock-Up Securities without the prior written consent of Leerink Partners, provided, in each case, that (1) in the cases of clauses (i)-(v) below, ▇▇▇▇▇▇▇ Partners receives a signed lock-up agreement for the balance of the Lock-Up Period from each donee, trustee, distributee, or transferee, as the case may be, (2) any such transfer shall not involve a disposition for value, (3) except in the case of gifts pursuant to clause (i) below, such transfers are not required to be reported with the Securities and Exchange Commission on Form 4 in accordance with Section 16 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and (4) the undersigned does not otherwise voluntarily effect any public filing or report regarding such transfers (other than a filing on a Form 5 made after the expiration of the Lock-Up Period):

Furthermore, no provision in this letter shall be deemed to restrict or prohibit (1) the transfer of the undersigned’s Lock-Up Securities to the Company in connection with the termination of the undersigned’s services to the Company, provided that any filing under Section 16 of the Exchange Act made in connection with such transfer shall clearly indicate in the footnotes thereto that the filing relates to the circumstances described in this clause (1); (2) the exercise or exchange by the undersigned of any option or warrant to acquire any shares of Common Stock or options to purchase shares of Common Stock, in each case for cash or on a “cashless” or “net exercise” basis, pursuant to any stock option, stock bonus or other stock plan or arrangement; provided, however, that the underlying shares of Common Stock shall continue to be subject to the restrictions on transfer set forth in this letter and that any filing under Section 16 of the Exchange Act made in connection with such exercise or exchange shall clearly indicate in the footnotes thereto that (a) the filing relates to the circumstances described in this clause (2) and (b) no shares were sold by the reporting person; (3) the transfer of Lock-Up Securities upon the completion of a bona fide third-party tender offer, merger, consolidation or other similar transaction made to all holders of the Company’s securities involving a change of control of the Company; provided, however, that in the event that such tender offer, merger, consolidation or other such transaction is not completed, such securities held by the undersigned shall remain subject to the restrictions on transfer set forth in this letter; and (4) the conversion of outstanding preferred stock of the Company into shares of Common Stock, provided that any such shares received upon such conversion shall be subject to the restrictions on transfer set forth in this letter.

Notwithstanding anything herein to the contrary, nothing herein shall prevent the undersigned from (i) establishing a 10b5-1 trading plan that complies with Rule 10b5-1 under the Exchange Act (“10b5-1 Trading Plan”) or from amending an existing 10b5-1 Trading Plan so long as there are no sales of Lock-Up Securities under any such 10b5-1 Trading Plan during the Lock-Up Period; provided, however, that any public announcement or filing under the Exchange Act regarding the establishment or amendment of such 10b5-1 Trading Plan shall clearly disclose that no shares of Common Stock shall be disposed by such plan during the duration of the Lock-Up Period, (ii) selling shares of Common Stock pursuant to an existing 10b5-1 Trading Plan or (iii) any mandatory sell-to-cover arrangement to satisfy tax withholding obligations as a result of the exercise, vesting and/or settlement of the Company equity awards (including options and restricted stock units) adopted by the Company providing for the sale of Common Stock by or on behalf of the undersigned; provided, however, in the case of clauses (ii) or (iii), that (a) if any filings under the Exchange Act or other public announcement shall be legally required during the Lock-Up Period, such filing or public announcement shall include a statement that such sale was effected pursuant to the applicable circumstances described in clause (ii) and (iii) and (b) no other public announcement shall be required or shall be made voluntarily in connection with any such sales.

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The undersigned also agrees and consents to the entry of stop transfer instructions with the Company’s transfer agent and registrar against the transfer of the Lock-Up Securities except in compliance with the foregoing restrictions. This lock-up agreement shall automatically terminate, and the undersigned shall be released from the undersigned’s obligations hereunder, upon the earliest to occur, if any, of (i) prior to the execution of the Purchase Agreement, the Company advises Leerink Partners in writing that it has determined not to proceed with the Private Placement; (ii) the Purchase Agreement is executed but is terminated prior to the closing of the Private Placement (other than the provisions thereof which survive termination), or (iii) September 30, 2025, in the event that the Purchase Agreement has not been executed by such date.

This agreement shall be governed by, and construed in accordance with, the laws of the State of New York.

[SIGNATURE PAGE FOLLOWS]

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[SIGNATURE PAGE TO LOCK-UP AGREEMENT]