QDEL QuidelOrtho Corporation

Exhibit 1.1

EXECUTION VERSION

QUIDELORTHO CORPORATION

8,260,183 Shares of Common Stock

Underwriting Agreement

November 19, 2024

Goldman Sachs & Co. LLC

200 West Street

New York, New York 10282-2198

Ladies and Gentlemen:

The stockholder, named in Schedule 2 hereto (acting by its general partner, TC Group VI Cayman, L.P., acting by its general partner TC Group VI Cayman, L.L.C., the “Selling Stockholder”), of QuidelOrtho Corporation, a Delaware corporation (the “Company”), proposes to sell to the several underwriters listed in Schedule 1 hereto (collectively, the “Underwriters,” and to the extent there is only a single underwriter, the term “Underwriters” shall be deemed to refer to the single Underwriter), an aggregate of 8,260,183 shares of common stock, par value $0.001 per share (the “Common Stock”), of the Company (the “Shares”). The shares of Common Stock of the Company to be outstanding after giving effect to the sale of the Shares are referred to herein as “Stock.”

For the purposes of this underwriting agreement (this “Agreement”), the term “Company Entities” refers, collectively, to the Company and each of its consolidated subsidiaries (each, a “Company Entity”).

Each of the Company and the Selling Stockholder hereby confirms its agreement with the several Underwriters concerning the purchase and sale of the Shares, as follows:

1. Registration Statement. The Company has prepared and filed with the Securities and Exchange Commission (the “Commission”) under the Securities Act of 1933, as amended, and the rules and regulations of the Commission thereunder (collectively, the “Securities Act”), an automatically effective registration statement on Form S-3 (File No. 333-283339), including a prospectus, relating to the Shares. Such registration statement, as amended at the time it became effective, including the information, if any, deemed pursuant to Rule 430A, 430B or 430C under the Securities Act to be part of the registration statement at the time of its effectiveness (“Rule 430 Information”), is referred to herein as the “Registration Statement”; and as used herein, the term “Preliminary Prospectus” means any preliminary prospectus supplement relating to the Shares filed with the Commission pursuant to Rule 424(b) under the Securities Act that amends or supplements the Base Prospectus (as defined below) and the prospectus included in the Registration Statement at the time of its effectiveness that omits Rule 430 Information (the “Base Prospectus”), and the term “Prospectus” means any prospectus

supplement and the Base Prospectus in the form first used (or made available upon request of purchasers pursuant to Rule 173 under the Securities Act) in connection with confirmation of sales of the Shares. If the Company has filed an abbreviated registration statement pursuant to Rule 462(b) under the Securities Act (the “Rule 462 Registration Statement”), then any reference herein to the term “Registration Statement” shall be deemed to include such Rule 462 Registration Statement. Any reference in this Agreement to the Registration Statement, any Preliminary Prospectus or the Prospectus shall be deemed to refer to and include the documents incorporated by reference therein pursuant to Item 12 of Form S-3 under the Securities Act, as of the effective date of the Registration Statement or the date of such Preliminary Prospectus or the Prospectus, as the case may be, and any reference to “amend”, “amendment” or “supplement” with respect to the Registration Statement, any Preliminary Prospectus or the Prospectus shall be deemed to refer to and include any documents filed after such date under the Securities Exchange Act of 1934, as amended, and the rules and regulations of the Commission thereunder (collectively, the “Exchange Act”) that are deemed to be incorporated by reference therein. Capitalized terms used but not defined herein shall have the meanings given to such terms in the Registration Statement and the Prospectus.

At or prior to the Applicable Time (as defined below), the Company had prepared the following information (collectively with the oral pricing information set forth on Annex A, the “Pricing Disclosure Package”): a Base Prospectus dated November 19, 2024, a free writing prospectus, dated November 19, 2024 in the form attached as Annex C hereto, and each other “free-writing prospectus” (as defined pursuant to Rule 405 under the Securities Act), if any, listed on Annex A hereto.

“Applicable Time” means 8:30 P.M., New York City time, on November 19, 2024.

2. Purchase of the Shares.

(a) On the basis of the representations, warranties and agreements set forth herein and subject to the conditions set forth herein, the Selling Stockholder agrees to sell the Shares to the several Underwriters as provided in this Agreement, and each Underwriter, on the basis of the representations, warranties and agreements set forth herein and subject to the conditions set forth herein, agrees, severally and not jointly, to purchase at a price per share of $35.314 (the “Purchase Price”) from the Selling Stockholder the respective number of Shares set forth opposite such Underwriter’s name in Schedule 1 hereto.

(b) The Selling Stockholder understands that the Underwriters intend to make a public offering of the Shares, and initially to offer the Shares on the terms set forth in the Pricing Disclosure Package. The Selling Stockholder acknowledges and agrees that the Underwriters may offer and sell Shares to or through any affiliate of an Underwriter.

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(c) Payment for the Shares shall be made by wire transfer in immediately available funds to the account specified by the Selling Stockholder to the Underwriters at the offices of Cravath, Swaine & Moore LLP at 10:00 A.M. New York City time on November 21, 2024, or at such other time or place on the same or such other date, not later than the fifth business day thereafter, as the Underwriters and the Selling Stockholder may agree upon in writing. The time and date of such payment for the Shares is referred to herein as the “Closing Date.”

(d) Payment for the Shares to be purchased on the Closing Date shall be made against delivery to the Underwriters for the respective accounts of the several Underwriters of the Shares to be purchased on such date with any transfer taxes payable in connection with the initial sale of such Shares to the Underwriters duly paid by the Selling Stockholder . Delivery of the Shares shall be made through the facilities of The Depository Trust Company (“DTC”) unless the Underwriters shall otherwise instruct.

Each of the Company and the Selling Stockholder acknowledges and agrees that the Underwriters are acting solely in the capacity of an arm’s length contractual counterparty to the Company and the Selling Stockholder with respect to the offering of Shares contemplated hereby (including in connection with determining the terms of the offering) and not as a financial advisor or a fiduciary to, or an agent of, the Company, the Selling Stockholder or any other person. Additionally, no Underwriter is advising the Company, the Selling Stockholder or any other person as to any legal, tax, investment, accounting or regulatory matters in any jurisdiction. The Company and the Selling Stockholder shall consult with their own advisors concerning such matters and each shall be responsible for making their own independent investigation and appraisal of the transactions contemplated hereby, and the Underwriters shall not have any responsibility or liability to the Company or the Selling Stockholder with respect thereto. Any review by the Underwriters of the Company, the transactions contemplated hereby or other matters relating to such transactions will be performed solely for the benefit of the Underwriters and shall not be on behalf of the Company or the Selling Stockholder.

3. Representations and Warranties of the Company. The Company represents and warrants to each Underwriter and the Selling Stockholder that:

(a) Preliminary Prospectus. No order preventing or suspending the use of any Preliminary Prospectus has been issued by the Commission, and any Preliminary Prospectus included in the Pricing Disclosure Package, at the time of filing thereof, complied in all material respects with the Securities Act, and no Preliminary Prospectus included in the Pricing Disclosure Package, at the time of filing thereof, contained any untrue statement of a material fact or omitted to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided that the Company makes no representation or warranty with respect to any statements or omissions made in reliance upon and in conformity with information relating to any Underwriter furnished to the Company in writing by such Underwriter expressly for use in any Preliminary Prospectus, it being understood and agreed that the only such information furnished by any Underwriter consists of the Underwriter Information (as defined in Section 9(c) hereof).

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(b) Pricing Disclosure Package. The Pricing Disclosure Package, at the Applicable Time did not, and as of the Closing Date, will not, contain any untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided that the Company makes no representation or warranty with respect to any statements or omissions made in reliance upon and in conformity with information relating to any Underwriter furnished to the Company in writing by such Underwriter expressly for use in such Pricing Disclosure Package, it being understood and agreed that the only such information furnished by any Underwriter consists of the Underwriter Information. No statement of material fact included in the Prospectus has been omitted from the Pricing Disclosure Package and no statement of material fact included in the Pricing Disclosure Package that is required to be included in the Prospectus has been omitted therefrom.

(c) Issuer Free Writing Prospectus. Other than the Registration Statement and the Prospectus, the Company (including its agents and representatives, other than the Underwriters in their capacity as such) has not prepared, made, used, authorized, approved or referred to and will not prepare, make, use, authorize, approve or refer to any “written communication” (as defined in Rule 405 under the Securities Act) that constitutes an offer to sell or solicitation of an offer to buy the Shares (each such communication by the Company or its agents and representatives (other than a communication referred to in clause (ii) below) an “Issuer Free Writing Prospectus”) other than (i) the free writing prospectus in the form attached as Annex C hereto, (ii) any document not constituting a prospectus pursuant to Section 2(a)(10)(a) of the Securities Act or Rule 134 under the Securities Act or any document that complies with Rule 135 under the Securities Act or (iii) the documents, if any, listed on Annex A hereto, each electronic road show and any other written communications approved in writing in advance by the Underwriters. Each such Issuer Free Writing Prospectus, if any, complies in all material respects with the Securities Act, has been or will be (within the time period specified in Rule 433) filed in accordance with the Securities Act (to the extent required thereby) and does not conflict with the information contained in the Registration Statement or the Pricing Disclosure Package, and, when taken together with the Base Prospectus accompanying, or delivered prior to delivery of, such Issuer Free Writing Prospectus, did not, and as of the Closing Date, will not, contain any untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided that the Company makes no representation or warranty with respect to any statements or omissions made in each such Issuer Free Writing Prospectus or any Preliminary Prospectus in reliance upon and in conformity with information relating to any Underwriter furnished to the Company in writing by such Underwriter expressly for use in such Issuer Free Writing Prospectus or any Preliminary Prospectus, it being understood and agreed that the only such information furnished by any Underwriter consists of the Underwriter Information.

(d) [Reserved].

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(e) Registration Statement and Prospectus. The Registration Statement is an “automatic shelf registration statement” as defined under Rule 405 of the Securities Act that has been filed with the Commission not earlier than three years prior to the date hereof; and no notice of objection of the Commission to the use of such registration statement or any post-effective amendment thereto pursuant to Rule 401(g)(2) under the Securities Act has been received by the Company. No order suspending the effectiveness of the Registration Statement has been issued by the Commission, and no proceeding for that purpose or pursuant to Section 8A of the Securities Act against the Company or related to the offering of the Shares has been initiated or, to the knowledge of the Company, threatened by the Commission; as of the applicable effective date of the Registration Statement and any post-effective amendment thereto, the Registration Statement and any such post-effective amendment complied and as of the Closing Date will comply in all material respects with the Securities Act, and did not, as of the applicable effective date, and will not, as of the Closing Date, contain any untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary in order to make the statements therein not misleading; and as of the date of the Prospectus and any amendment or supplement thereto and as of the Closing Date, the Prospectus will comply in all material respects with the applicable provisions of the Securities Act and will not contain any untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided that the Company makes no representation or warranty with respect to any statements or omissions made in reliance upon and in conformity with information relating to any Underwriter furnished to the Company in writing by such Underwriter expressly for use in the Registration Statement and the Prospectus and any amendment or supplement thereto, it being understood and agreed that the only such information furnished by any Underwriter consists of the Underwriter Information.

(f) Incorporated Documents. The documents incorporated by reference in the Registration Statement, the Prospectus and the Pricing Disclosure Package, when they were filed with the Commission conformed in all material respects to the requirements of the Exchange Act, and none of such documents, when read together with other information in the Registration Statement, the Pricing Disclosure Package and the Prospectus, contained any untrue statement of a material fact or omitted to state a material fact necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading; and any further documents so filed and incorporated by reference in the Registration Statement, the Prospectus or the Pricing Disclosure Package, when such documents are filed with the Commission, will conform in all material respects to the requirements of the Exchange Act and will not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading.

(g) Financial Statements. The consolidated financial statements (including the related notes thereto) of the Company and its consolidated subsidiaries included or incorporated by reference in the Registration Statement, the Pricing Disclosure Package and the Prospectus comply in all material respects with the applicable requirements of the Securities Act and the Exchange Act, as applicable, and present fairly in all material respects the financial position of the Company and its consolidated subsidiaries, as of the dates indicated and the results of their operations and the changes in cash flows of the

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Company and its consolidated subsidiaries, for the periods specified; such financial statements have been prepared in conformity with generally accepted accounting principles in the United States (“GAAP”) applied on a consistent basis throughout the periods covered thereby, and any supporting schedules included or incorporated by reference in the Registration Statement present fairly in all material respects the information required to be stated therein; and the other financial information included or incorporated by reference in the Registration Statement, the Pricing Disclosure Package and the Prospectus has been derived from the accounting records of the Company and its consolidated subsidiaries and presents fairly, in all material respects, the information shown thereby; all disclosures included or incorporated by reference in the Registration Statement, the Pricing Disclosure Package and the Prospectus regarding “non-GAAP financial measures” (as such term is defined by the rules and regulations of Commission) comply in all material respects with Regulation G of the Exchange Act and Item 10 of Regulation S-K of the Securities Act, to the extent applicable; and the pro forma financial information and the related notes thereto included or incorporated by reference in the Registration Statement, the Pricing Disclosure Package and the Prospectus have been prepared in accordance with the applicable requirements of the Securities Act and the Exchange Act, as applicable, and the assumptions underlying such pro forma financial information are reasonable and are set forth in the Registration Statement, the Pricing Disclosure Package and the Prospectus.

(h) No Material Adverse Change. Except as set forth in the Registration Statement, the Pricing Disclosure Package and the Prospectus, since the date of the most recent financial statements of the Company and its subsidiaries included or incorporated by reference in the Registration Statement, the Pricing Disclosure Package and the Prospectus, (i) there has not been any change in the capital stock (other than the issuance of Common Stock of the Company upon exercise of stock options and warrants described as outstanding in, and the grant of options and awards under existing equity incentive plans described in, the Registration Statement, the Pricing Disclosure Package and the Prospectus) or long-term debt of any Company Entity, or any dividend or distribution of any kind declared, set aside for payment, paid or made by the Company on any class of capital stock, or any material adverse change, or any development involving a prospective material adverse change, in or affecting the businesses, properties, management, financial position or results of operations of the Company and its subsidiaries taken as a whole; and (ii) no Company Entity has sustained any loss or interference with its business that is material to the Company and its subsidiaries taken as a whole from fire, explosion, flood or other calamity, whether or not covered by insurance, or from any labor dispute or any action, order or decree of any court or arbitrator or governmental or regulatory authority.

(i) Organization and Good Standing. The Company and each of its significant subsidiaries have been duly organized and are validly existing and in good standing under the laws of their respective jurisdictions of organization (where such concept exists), are duly qualified to do business and are in good standing in each other jurisdiction in which their respective ownership or lease of property or the conduct of their respective businesses requires such qualification, and have all power and authority necessary to own or hold their respective properties and to conduct the businesses in

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which they are engaged, except where the failure to be so qualified, in good standing or have such power or authority would not, individually or in the aggregate, have a material adverse effect on the businesses, properties, management, financial position or results of operations of the Company and its subsidiaries taken as a whole or on the performance by the Company of its obligations under this Agreement (a “Material Adverse Effect”).

(j) Capitalization. The Company has an authorized capitalization as set forth in the Registration Statement, the Pricing Disclosure Package and the Prospectus under the heading “Description of Capital Stock”; all the issued shares of capital stock of the Company (including the Shares to be sold by the Selling Stockholder) have been duly and validly authorized and issued and are fully paid and non-assessable and are not subject to any preemptive or similar rights; except as described in or expressly contemplated by the Registration Statement, the Pricing Disclosure Package and the Prospectus, there are no outstanding rights (including, without limitation, preemptive rights), warrants or options to acquire, or instruments convertible into or exchangeable for, any capital stock or other equity interest in the Company or any of its subsidiaries, or any contract, commitment, agreement, understanding or arrangement of any kind relating to the issuance of any capital stock of the Company or any such subsidiary, any such convertible or exchangeable securities or any such rights, warrants or options; the capital stock of the Company conforms in all material respects to the descriptions thereof contained in and incorporated by reference in the Registration Statement, the Pricing Disclosure Package and the Prospectus; and all the outstanding capital stock or other equity interests of the Company’s significant subsidiaries have been duly and validly authorized and issued, are fully paid and non-assessable (except as otherwise described in the Registration Statement, the Pricing Disclosure Package and the Prospectus) and are owned directly or indirectly by the Company (except as otherwise described in the Registration Statement, the Pricing Disclosure Package and the Prospectus), free and clear of any lien, charge, encumbrance, security interest, restriction on voting or transfer or any other claim of any third party (other than (i) liens, charges, encumbrances or security interests securing the credit agreement, dated as of May 27, 2022 (as amended and supplemented, the “Credit Agreement”), by and among the Company, as borrower, Bank of America, N.A., as administrative agent and swing line lender, and the other lenders and L/C issuers party thereto, or (ii) other liens, charges, encumbrances, security interests, restrictions or claims described in the Registration Statement, the Pricing Disclosure Package and the Prospectus).

(k) Due Authorization. The Company has full right, power and authority to execute and deliver this Agreement and to perform its obligations hereunder; and all action required to be taken for the due and proper authorization, execution and delivery by it of this Agreement and the consummation by it of the transactions contemplated hereby has been duly and validly taken.

(l) Underwriting Agreement. This Agreement has been duly authorized, executed and delivered by the Company.

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(m) Description of the Underwriting Agreement. This Agreement conforms in all material respects to the description thereof contained in each of the Registration Statement, the Pricing Disclosure Package and the Prospectus.

(n) No Violation or Default. No Company Entity is (i) in violation of its charter or by-laws or similar organizational documents; (ii) in default, and no event has occurred that, with notice or lapse of time or both, would constitute such a default, in the due performance or observance of any term, covenant or condition contained in any indenture, mortgage, deed of trust, loan agreement or other agreement or instrument to which any Company Entity is a party or by which any Company Entity is bound or to which any property or asset of any Company Entity is subject; or (iii) in violation of any applicable law or statute or any judgment, order, rule or regulation of any court or arbitrator or governmental or regulatory authority having jurisdiction over any Company Entity or any property or asset of any Company Entity, except, in the case of clauses (ii) and (iii) above, for any such default or violation that would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect.

(o) No Conflicts. The execution, delivery and performance by the Company of this Agreement will not (i) conflict with or result in a breach or violation of any of the terms or provisions of, or constitute a default under, result in the termination, modification or acceleration of, or result in the creation or imposition of any lien, charge or encumbrance upon any property or asset of any Company Entity pursuant to, any indenture, mortgage, deed of trust, loan agreement or other agreement or instrument to which any Company Entity is a party or by which any Company Entity is bound or to which any property or asset of any Company Entity is subject (other than (a) any lien, charge or encumbrance created, permitted or imposed pursuant to the collateral documents relating to the Credit Agreement or (b) the other liens, charges or encumbrances disclosed in the Registration Statement, the Pricing Disclosure Package and the Prospectus), (ii) result in any violation of the provisions of the charter or by-laws or similar organizational documents of any Company Entity or (iii) result in the violation of any applicable law or statute or any judgment, order, rule or regulation of any court or arbitrator or governmental or regulatory authority having jurisdiction over any Company Entity or any property or asset of any Company Entity, except, in the case of clauses (i) and (iii) above, for any such conflict, breach, violation, default, lien, charge or encumbrance that would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect.

(p) No Consents Required. No consent, approval, authorization, order, registration or qualification of or with any court or arbitrator or governmental or regulatory authority is required for the execution, delivery and performance by the Company of this Agreement, except for the registration of the Shares under the Securities Act and such consents, approvals, authorizations, orders and registrations or qualifications (i) as have been obtained or made, (ii) as may be required by the Financial Industry Regulatory Authority, Inc. (“FINRA”) and under applicable state securities laws in connection with the purchase and distribution of the Shares by the Underwriters or (iii) as would not, individually or in the aggregate, reasonably be expected to materially adversely affect the consummation of the transactions contemplated by this Agreement.

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(q) Legal Proceedings. Except as described in each of the Registration Statement, the Pricing Disclosure Package and the Prospectus, (i) there are no legal, governmental or regulatory investigations, actions, demands, claims, suits, arbitrations, inquiries or proceedings (“Actions”) pending to which any Company Entity is a party or to which any property, right or asset of any Company Entity is the subject that, individually or in the aggregate, if determined adversely to such Company Entity, could reasonably be expected to have a Material Adverse Effect; (ii) to the knowledge of the Company, no such Actions have been threatened in writing by any governmental or regulatory authority or by others that, individually or in the aggregate, if determined adversely to such Company Entity, could reasonably be expected to have a Material Adverse Effect; (iii) there are no current or pending Actions that are required under the Securities Act to be described in the Registration Statement, the Pricing Disclosure Package or the Prospectus that are not so described in the Registration Statement, the Pricing Disclosure Package and the Prospectus and (iv) there are no contracts or other documents that are required under the Securities Act to be filed as exhibits to the Registration Statement that are not so filed as exhibits to the Registration Statement or described in the Registration Statement, the Pricing Disclosure Package and the Prospectus.

(r) Independent Accountants. Ernst & Young LLP, who has audited certain financial statements of the Company and its subsidiaries, is an independent registered public accounting firm with respect to the Company and its subsidiaries within the applicable rules and regulations adopted by the Commission and the Public Company Accounting Oversight Board (United States) and as required by the Securities Act.

(s) Title to Real and Personal Property. Except (i) as described in each of the Registration Statement, the Pricing Disclosure Package and the Prospectus or (ii) as would not reasonably be expected to have a Material Adverse Effect, to the knowledge of the Company, each Company Entity has title in fee simple or other comparable valid title to, or has rights to lease or otherwise use, all items of real and personal property that are necessary in the ordinary conduct of the businesses of the Company and its subsidiaries, in each case free and clear of all liens, charges, encumbrances, claims, defects and imperfections of title (other than liens, charges or encumbrances securing the Credit Agreement).

(t) Title to Intellectual Property. Except (i) as described in each of the Registration Statement, the Pricing Disclosure Package and the Prospectus or (ii) as would not reasonably be expected to have a Material Adverse Effect, to the knowledge of the Company, (A) each Company Entity owns or possesses adequate rights to use or is licensed to use all patents, patent applications, trademarks, service marks, trade names, trademark registrations, service mark registrations, copyrights and copyrightable works, know-how, trade secrets, systems, procedures, proprietary or confidential information (“Intellectual Property”) necessary for the conduct of its businesses (“Company-Owned Intellectual Property”), (B)(1) the conduct of such businesses does not infringe in any material respect any Intellectual Property of others and (2) no Company Entity has received any written notice of any claim of material infringement of or material conflict with the Intellectual Property of others and (C) the Company-Owned Intellectual Property is subsisting and is, to the extent issued or registered, valid and enforceable.

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(u) No Undisclosed Relationships. No relationship, direct or indirect, exists between or among any Company Entity, on the one hand, and the directors, officers, stockholders or other affiliates of any Company Entity, on the other, that is required by the Securities Act to be described in each of the Registration Statement and the Prospectus and that is not so described in such documents and in the Pricing Disclosure Package.

(v) Investment Company Act. The Company is not required to register as an “investment company” within the meaning of the Investment Company Act of 1940, as amended, and the rules and regulations of the Commission thereunder.

(w) Taxes. Except as would not reasonably be expected to have a Material Adverse Effect, (1) the Company Entities have paid all federal, state, local and foreign taxes and filed all tax returns required to be paid or filed through the date hereof unless (i) such taxes are being contested in good faith, (ii) adequate reserves are being maintained for such taxes and (iii) such taxes can lawfully be withheld and (2) there is no tax deficiency that has been, or could reasonably be expected to be, asserted against any Company Entity or any of their respective properties or assets.

(x) Licenses and Permits. Except (i) as described in each of the Registration Statement, the Pricing Disclosure Package and the Prospectus or (ii) as would not reasonably be expected to have a Material Adverse Effect, (1) the Company Entities possess all licenses, sub-licenses, certificates, permits and other authorizations issued by, and have made all declarations and filings with, the appropriate federal, state, local or foreign governmental or regulatory authorities that are necessary for the ownership or lease of the properties of their respective businesses or the conduct of the respective businesses of each Company Entity and (2) no Company Entity has received notice of any revocation or modification of any such license, sub-license, certificate, permit or authorization or has any reason to believe that any such license, sub-license, certificate, permit or authorization will not be renewed in the ordinary course.

(y) No Labor Disputes. Except as described in each of the Registration Statement, the Pricing Disclosure Package and the Prospectus, no labor dispute with employees of any Company Entity exists or, to the knowledge of the Company, is contemplated or threatened, and the Company is not aware of any existing labor dispute with the employees of any of the Company’s principal suppliers, contractors or customers, in each case, except as would not have a Material Adverse Effect. No Company Entity has received any notice of cancellation or termination with respect to any collective bargaining agreement to which it is a party, in each case, except as would not have a Material Adverse Effect.

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(z) Compliance with Environmental Laws. Except (1) as described in each of the Registration Statement, the Pricing Disclosure Package and the Prospectus or (2) as would not reasonably be expected to have a Material Adverse Effect, (i) there are no written claims against any Company Entity alleging potential liability under, or responsibility for violation of, any Environmental Law (as defined below) related to the businesses, operations and properties of the Company, and the businesses, operations and properties of each Company Entity are in compliance with applicable Environmental Laws; (ii) none of the properties currently or formerly owned or operated by any Company Entity is listed or, to the knowledge of any Company Entity, proposed for listing on the National Priorities List under the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 or on the Comprehensive Environmental Response, Compensation, and Liability Information System maintained by the U.S. Environmental Protection Agency or any analogous foreign, state or local list; (iii) there are no and, to the knowledge of the Company Entities, never have been any underground or aboveground storage tanks or any surface impoundments, septic tanks, pits, sumps or lagoons in which Hazardous Materials (as defined below) are being or have been treated, stored or disposed on any property currently owned or operated by any Company Entity that would be reasonably expected to give rise to a cost, obligation or liability under Environmental Laws; (iv) there is no asbestos or asbestos-containing material on or at any property currently owned or operated by any Company Entity requiring investigation, remediation, mitigation, removal, or abatement, or other response, remedial or corrective action, pursuant to Environmental Laws; (v) there have been no Releases (as defined below) of Hazardous Material on, at, under or from any property currently or, to the knowledge of the Company, formerly owned or operated by any Company Entity; (vi) none of the properties currently owned or operated by any Company Entity contain any Hazardous Materials in amounts or concentrations which (x) constitute a violation of, (y) require response or other corrective action under, or (z) could be reasonably expected to give rise to a cost, obligation or liability under Environmental Laws, which violations, response or other corrective actions and liabilities, in the aggregate, would reasonably be expected to result in a Material Adverse Effect; (vii) no Company Entity is undertaking, or has completed, either individually or together with other parties, any investigation, response or other corrective action relating to any actual or threatened Release of Hazardous Materials at any location, either voluntarily or pursuant to the order of any Governmental Authority (as defined below) or the requirements of any Environmental Law except for such investigation, response or other corrective action that, in the aggregate, would not reasonably be expected to result in a Material Adverse Effect; and (viii) all Hazardous Materials generated, used, treated, handled, or stored at, or transported or arranged for transport to or from, any property or facility currently or, to the knowledge of the Company Entities, formerly owned or operated by any Company Entity have been disposed of in a manner that would not reasonably be expected to result in a Material Adverse Effect. As used herein: (i) “Environmental Laws” means any and all applicable federal, state, local and foreign statutes, laws, including common law, regulations or ordinances, rules, judgments, orders, decrees, permits, licenses or restrictions imposed or issued by a Governmental Authority relating to pollution or protection of the environment or protection of human health (to the extent relating to exposure to Hazardous Materials), including those relating to the generation, use, handling, storage, transportation, treatment or Release or threat of Release of Hazardous Materials; (ii) “Hazardous Materials” means all explosive or radioactive substances or wastes and all hazardous or toxic substances, wastes or other pollutants, including

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petroleum or petroleum distillates, asbestos or asbestos-containing materials, perfluoroalkyl and polyfluoroalkyl substances, toxic mold, polychlorinated biphenyls, radon gas, infectious or medical wastes and all other substances or wastes of any nature regulated as “hazardous” or “toxic,” or as a “pollutant” or a “contaminant,” pursuant to any Environmental Law; (iii) “Release” means any release, spill, emission, leaking, pumping, pouring, injection, escaping, deposit, disposal, discharge, dispersal, dumping, leaching or migration of any Hazardous Material (including the abandonment or disposal of any barrels, containers or other closed receptacles containing any Hazardous Material) into the environment or into, from or through any building or structure; and (iv) “Governmental Authority” means any nation or government, any state or other political subdivision thereof, any agency, authority, instrumentality, regulatory body, court, administrative tribunal, central bank or other entity exercising executive, legislative, judicial, taxing, regulatory or administrative powers or functions of or pertaining to government.

(aa) Compliance with ERISA. Except (1) as described in each of the Registration Statement, the Pricing Disclosure Package and the Prospectus or (2) as would not reasonably be expected to have a Material Adverse Effect, (i) each employee benefit plan, within the meaning of Section 3(3) of the Employee Retirement Income Security Act of 1974, as amended (“ERISA”), for which any Company Entity or any member of its “Controlled Group” (defined as any entity, whether or not incorporated, that is under common control with the Company within the meaning of Section 4001(a)(14) of ERISA or any entity that would be regarded as a single employer with the Company under Section 414(b),(c),(m) or (o) of the Internal Revenue Code of 1986, as amended (the “Code”)) would have any liability (each, a “Plan”) has been maintained in compliance with its terms and the requirements of any applicable statutes, orders, rules and regulations, including but not limited to ERISA and the Code; (ii) no prohibited transaction, within the meaning of Section 406 of ERISA or Section 4975 of the Code, has occurred with respect to any Plan, excluding transactions effected pursuant to a statutory or administrative exemption; (iii) for each Plan that is subject to the funding rules of Section 412 of the Code or Section 302 of ERISA, no Plan has failed (whether or not waived), or is reasonably expected to fail, to satisfy the minimum funding standards (within the meaning of Section 302 of ERISA or Section 412 of the Code) applicable to such Plan; (iv) no Plan is, or is reasonably expected to be, in “at risk status” (within the meaning of Section 303(i) of ERISA), and no Plan that is a “multiemployer plan” within the meaning of Section 4001(a)(3) of ERISA is in “endangered status” or “critical status” (within the meaning of Sections 304 and 305 of ERISA); (v) the fair market value of the assets of each Plan exceeds the present value of all benefits accrued under such Plan (determined based on those assumptions used to fund such Plan); (vi) no “reportable event” (within the meaning of Section 4043(c) of ERISA and the regulations promulgated thereunder) has occurred or is reasonably expected to occur; (vii) each Plan that is intended to be qualified under Section 401(a) of the Code is so qualified and nothing has occurred, whether by action or by failure to act, which would cause the loss of such qualification; (viii) no Company Entity or member of its Controlled Group has incurred, nor reasonably expects to incur, any liability under Title IV of ERISA (other than contributions to the Plan or premiums to the Pension Benefit Guaranty Corporation, in the ordinary course and without default) in respect of a Plan (including a “multiemployer

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plan” within the meaning of Section 4001(a)(3) of ERISA); and (ix) none of the following events has occurred or is reasonably likely to occur: (A) a material increase in the aggregate amount of contributions required to be made to all Plans by any Company Entity or its Controlled Group affiliates in the current fiscal year of any Company Entity and its Controlled Group affiliates compared to the amount of such contributions made in such Company Entity’s and its Controlled Group affiliates’ most recently completed fiscal year; or (B) a material increase in the Company and its subsidiaries’ “accumulated post-retirement benefit obligations” (within the meaning of Accounting Standards Codification Topic 715-60) compared to the amount of such obligations in the Company and its subsidiaries’ most recently completed fiscal year.

(bb) Disclosure Controls. The Company and its subsidiaries maintain an effective system of “disclosure controls and procedures” (as defined in Rule 13a-15(e) of the Exchange Act) that complies with the requirements of the Exchange Act and that is designed to ensure that material information relating to the Company and its subsidiaries is made known to the Company’s and its subsidiaries’ management by others within the Company and its subsidiaries, and such disclosure controls and procedures are reasonably effective to perform the functions for which they were established. The Company and its subsidiaries have carried out evaluations of the effectiveness of their disclosure controls and procedures as required by Rule 13a-15 of the Exchange Act.

(cc) Accounting Controls; XBRL. The Company and its subsidiaries maintain systems of “internal control over financial reporting” (as defined in Rule 13a-15(f) of the Exchange Act) that comply with the requirements of the Exchange Act and provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with GAAP, including, but not limited to, internal accounting controls sufficient to provide reasonable assurance that (i) transactions are executed in accordance with management’s general or specific authorizations; (ii) transactions are recorded as necessary to permit preparation of financial statements in conformity with GAAP and to maintain asset accountability; (iii) access to assets is permitted only in accordance with management’s general or specific authorization; (iv) the recorded accountability for assets is compared with the existing assets at reasonable intervals and appropriate action is taken with respect to any differences and (v) interactive data in eXtensible Business Reporting Language included or incorporated by reference in the Registration Statement, the Prospectus and the Pricing Disclosure Package fairly presents the information called for in all material respects and is prepared in accordance with the Commission’s rules and guidelines applicable thereto. Except as disclosed in each of the Registration Statement, the Pricing Disclosure Package and the Prospectus, there are no material weaknesses in the Company’s internal controls. The interactive data in eXtensible Business Reporting Language included or incorporated by reference in the Registration Statement fairly presents the information called for in all material respects and has been prepared in accordance with the Commission’s rules and guidelines applicable thereto.

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(dd) Insurance. Except (1) as described in each of the Registration Statement, the Pricing Disclosure Package and the Prospectus or (2) as would not reasonably be expected to have a Material Adverse Effect, the Company and its subsidiaries have insurance covering their respective properties, operations, personnel and businesses as is customary in its industry, which insurance is in amounts and insures against such losses and risks as are customarily deemed adequate to protect the Company and its subsidiaries and their respective businesses; and neither the Company nor any of its subsidiaries has (i) received written notice from any insurer or agent of such insurer that capital improvements or other expenditures are required or necessary to be made in order to continue such insurance or (ii) any reason to believe that it will not be able to renew its existing insurance coverage as and when such coverage expires or to obtain similar coverage at reasonable cost from similar insurers as may be necessary to continue its businesses.

(ee) No Unlawful Payments. No Company Entity nor, to the knowledge of the Company, any director, officer, agent, employee, controlled affiliate or authorized agent, in each case, associated with or acting on behalf of any Company Entity has used any corporate funds for any unlawful contribution, gift, entertainment or other unlawful expense relating to political activity, including: (i) any direct or indirect unlawful payment to any foreign or domestic government official or employee from corporate funds; (ii) in violation of any provision of the Foreign Corrupt Practices Act of 1977, as amended, or any applicable law or regulation implementing the OECD Convention on Combating Bribery of Foreign Public Officials in International Business Transactions; (iii) in violation of any provision of the Bribery Act 2010 of the United Kingdom, or any other applicable anti-bribery or anti-corruption law; or (iv) any unlawful bribe, rebate, payoff, influence payment, kickback or other unlawful payment. Each Company Entity has instituted, maintains and enforces, and will continue to maintain and enforce, policies and procedures designed to promote and ensure compliance with all applicable anti-bribery and anti-corruption laws.

(ff) Compliance with Anti-Money Laundering Laws. The operations of the Company and its subsidiaries are and have been conducted at all times in material compliance 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 agency (collectively, the “Anti-Money Laundering Laws”), and no action, suit or proceeding by or before any court or governmental 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.

(gg) No Conflicts with Sanctions Laws. No Company Entity nor, to the knowledge of the Company, any director, officer, authorized agent, employee or controlled affiliate or other person acting on behalf of any Company Entity is currently the subject or target of any sanctions administered or enforced by the U.S. government, including, without limitation, by the Office of Foreign Assets Control of the U.S. Department of the Treasury or the U.S. Department of State and including, without limitation, the designation as a “specially designated national” or “blocked person,” the

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United Nations Security Council, the European Union, His Majesty’s Treasury and the Swiss State Secretariat for Economic Affairs (collectively, “Sanctions”), nor is the Company or any of its subsidiaries located, organized or resident in a country or territory that is the subject or target of comprehensive Sanctions (as of the date hereof, Cuba, Iran, North Korea, Syria, the so-called Donetsk People’s Republic, the so-called Luhansk People’s Republic, the non-Ukrainian government controlled areas of the Zaporizhzhia and Kherson regions of Ukraine, the Crimea region of Ukraine and any other Covered Regions of Ukraine identified pursuant to Executive Order 14065 (each, a “Sanctioned Country”)). Since the more recent of April 24, 2019 or 10 years prior to the date of this Agreement, the Company and its subsidiaries have not knowingly engaged in, and are not now knowingly engaged in, any dealings or transactions in violation of Sanctions with any person that at the time of the dealing or transaction is or was the subject or the target of Sanctions or any Sanctioned Country.

(hh) No Restrictions on Subsidiaries. Except as described in each of the Registration Statement, the Pricing Disclosure Package and the Prospectus, no subsidiary of the Company is currently prohibited, directly or indirectly, under any agreement or other instrument to which it is a party or is subject, from paying any dividends to the Company, from making any other distribution on such entity’s capital stock or similar ownership interest, from repaying to the Company any loans or advances to such entity from the Company or from transferring any of such entity’s properties or assets to the Company or any other Company Entity, except for any restrictions under the Credit Agreement.

(ii) No Broker’s Fees. No Company Entity is a party to any contract, agreement or understanding with any person (other than this Agreement) that would give rise to a valid claim against any of them or any Underwriter for a brokerage commission, finder’s fee or like payment in connection with the offering and sale of the Shares.

(jj) No Registration Rights. No person has the right to require the Company or any of its subsidiaries to register any securities for sale under the Securities Act by reason of the filing of the Registration Statement with the Commission or, to the knowledge of the Company, the sale of the Shares to be sold by the Selling Stockholder hereunder.

(kk) No Stabilization. Neither the Company nor any of its subsidiaries has taken, directly or indirectly, any action designed to or that could reasonably be expected to cause or result in any stabilization or manipulation of the price of the Shares.

(ll) Forward-Looking Statements. No forward-looking statement (within the meaning of the Private Securities Litigation Reform Act of 1995) included or incorporated by reference in any of the Registration Statement, the Pricing Disclosure Package or the Prospectus has been made or reaffirmed without a reasonable basis or has been disclosed other than in good faith.

(mm) Statistical and Market Data. The statistical and market-related data included or incorporated by reference in each of the Registration Statement, the Pricing Disclosure Package and the Prospectus is based on or derived from sources that are reliable and accurate in all material respects.

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(nn) Health Care Laws. To the knowledge of the Company, no Company Entity is in violation of any Health Care Laws (as defined below), except where the violation thereof would not, either individually or in the aggregate, be reasonably expected to have a Material Adverse Effect. There is no pending, completed or, to the knowledge of the Company, threatened action (including any lawsuit, arbitration, or legal or administrative or regulatory proceeding, charge, complaint, or investigation) against any Company Entity, and no Company Entity has received any notice, warning letter or other communication from any Governmental Authority, which (i) enjoins production at any facility of any Company Entity, (ii) enters or proposes to enter into a consent decree of permanent injunction with any Company Entity or (iii) otherwise alleges any violation of any laws, rules or regulations by any Company Entity, and which, in each case, either individually or in the aggregate, would reasonably be expected to have a Material Adverse Effect. “Health Care Laws” means all health care laws applicable to any Company Entity, including, but not limited to, (i) the U.S. Federal Food, Drug, and Cosmetic Act (as codified in 21 U.S.C. § 301 et seq.), (ii) all applicable federal, state, local and foreign health care fraud and abuse laws or licensure and accreditation requirements and (iii) all applicable rules and regulations promulgated under any of the foregoing.

(oo) Clinical Trials. Except as would not, either individually or in the aggregate, reasonably be expected to have a Material Adverse Effect, (i) the studies, tests and preclinical and clinical trials conducted by, and to the knowledge of the Company, to the extent conducted by third parties on behalf of, any Company Entity were and, if still pending, are being conducted in compliance with experimental protocols, procedures and controls pursuant to generally accepted professional scientific standards for the development of medical devices (including diagnostic products) and the Health Care Laws; and (ii) no Company Entity has received any written notices or correspondence from any applicable Governmental Authority engaged in the regulation of clinical trials, medical devices (including diagnostic products), or biohazardous substances or materials requiring the termination, suspension or material modification of any studies, tests or preclinical or clinical trials currently being conducted by or on behalf of any Company Entity.

(pp) No Product Defects. To the knowledge of the Company, there is not currently under consideration by the Company or any of its subsidiaries or any governmental or regulatory authority, (i) any recall, material field notification, correction, product replacement, warning, investigator notice, safety alert, notification of defect relating to an alleged lack of safety or regulatory compliance of the medical device products produced or sold by the Company or any of its subsidiaries or (ii) termination or suspension of developing and testing of any such medical device products due to safety or performance issues, and which, in each case, either individually or in the aggregate, would reasonably be expected to have a Material Adverse Effect.

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(qq) Cybersecurity; Data Protection. Except as would not, either individually or in the aggregate, reasonably be expected to have a Material Adverse Effect, (i) 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 as required in connection with the operation of the business of the Company and its subsidiaries as currently conducted, free and clear, to the knowledge of the Company, of bugs, errors, defects, Trojan horses, time bombs, malware and other corruptants; (ii) the Company and its subsidiaries have implemented and maintained commercially reasonable controls, policies, procedures, and safeguards designed to maintain and protect their confidential information and the integrity, continuous operation, redundancy and security of their IT Systems and data (including personal, personally identifiable, sensitive, confidential or regulated data (“Personal Data”)) used in connection with their businesses, and to the knowledge of the Company or any of its subsidiaries, there have been no breaches, violations, outages or unauthorized uses of or accesses to such IT Systems and data, nor any incidents under internal review or investigations relating to such IT Systems and data; and (iii) the Company and its subsidiaries are presently in compliance with all applicable laws or statutes and all judgments, orders, rules and regulations of any court or arbitrator or governmental or regulatory authority, internal policies and contractual obligations relating to the privacy and security of IT Systems and Personal Data and relating to the protection of such IT Systems and Personal Data from unauthorized use, access, misappropriation or modification.

(rr) Sarbanes-Oxley Act. There is and has been no failure on the part of the Company or any of the Company’s directors or officers, in their capacities as such, to comply with any provision of the Sarbanes-Oxley Act of 2002, as amended, and the rules and regulations promulgated in connection therewith (the “Sarbanes-Oxley Act”) with which the Company is required to comply as of the date hereof.

(ss) Status under the Securities Act. At the time of filing the Registration Statement and any post-effective amendment thereto, at the earliest time thereafter that the Company or any offering participant made a bona fide offer (within the meaning of Rule 164(h)(2) under the Securities Act) of the Shares and at the date hereof, the Company was not and is not an “ineligible issuer,” and is a “well-known seasoned issuer,” in each case as defined in Rule 405 under the Securities Act. The Company has paid the registration fee for this offering pursuant to Rule 456(b)(1) under the Securities Act or will pay such fee within the time period required by such rule (without giving effect to the proviso therein) and in any event prior to the Closing Date.

4. Representations and Warranties of the Selling Stockholder. The Selling Stockholder represents and warrants to each Underwriter and the Company that:

(a) Required Consents; Authority. Except (i) as may be required under foreign or state securities (or Blue Sky) laws or by FINRA or by the Nasdaq Market in connection with the purchase and distribution of the Shares by the Underwriters and (ii) as would not impair in any material respect the ability of the Selling Stockholder to consummate its obligations hereunder, all consents, approvals, authorizations and orders

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necessary for the execution and delivery by the Selling Stockholder of this Agreement and for the sale and delivery of the Shares to be sold by the Selling Stockholder hereunder, have been obtained; and the Selling Stockholder has full right, power and authority to enter into this Agreement and to sell, assign, transfer and deliver the Shares to be sold by the Selling Stockholder hereunder; this Agreement has been duly authorized, executed and delivered by the Selling Stockholder.

(b) No Conflicts. The execution, delivery and performance by the Selling Stockholder of this Agreement, the sale of the Shares to be sold by the Selling Stockholder and the consummation by the Selling Stockholder of the transactions contemplated by this Agreement or the Pricing Disclosure Package and the Prospectus will not (i) conflict with or result in a breach or violation of any of the terms or provisions of, or constitute a default under, result in the termination, modification or acceleration of, or result in the creation or imposition of any lien, charge or encumbrance upon any property or asset of the Selling Stockholder pursuant to, any indenture, mortgage, deed of trust, loan agreement or other agreement or instrument to which the Selling Stockholder is a party or by which the Selling Stockholder is bound or to which any of the property or assets of the Selling Stockholder is subject, (ii) result in any violation of the provisions of the amended and restated exempted limited partnership agreement or similar organizational documents of the Selling Stockholder or (iii) result in the violation of any applicable law or statute or any judgment, order, rule or regulation of any court or arbitrator or governmental or regulatory authority having jurisdiction over the Selling Stockholder or any of its properties or assets, except, in the case of clauses (i) and (iii) above, for any such conflict, breach, violation, default, lien, charge or encumbrance that would not, individually or in the aggregate, reasonably be expected to materially impact the Selling Stockholder’s ability to perform its obligations under this Agreement.

(c) Title to Shares. The Selling Stockholder has good and valid title or a valid “security entitlement” (within the meaning of Section 8-102 of the New York Uniform Commercial Code (the “UCC”)) to the Shares to be sold at the Closing Date, by the Selling Stockholder hereunder, free and clear of all liens, encumbrances, equities or adverse claims; the Selling Stockholder will have, immediately prior to the Closing Date, good and valid title or a valid “security entitlement” (within the meaning of Section 8-102 of the UCC) to the Shares to be sold at the Closing Date, by the Selling Stockholder, free and clear of all liens, encumbrances, equities or adverse claims; and upon payment for the Shares to be sold by the Selling Stockholder pursuant to this Agreement, delivery of such Shares, as directed by the Underwriters, to Cede & Co. (“Cede”) or such other nominee as may be designated by DTC, registration of such Shares in the name of Cede or such other nominee and the crediting of such Shares on the books of DTC to securities accounts (within the meaning of Section 8-501 of the UCC) of the Underwriters (assuming that neither DTC nor any such Underwriter has notice of any adverse claim (within the meaning of Section 8-105 of the UCC) to such Shares), (A) under Section 8-501 of the UCC, the Underwriters will acquire a valid security entitlement (within the meaning of Section 8-102 of the UCC) in respect of such Shares and (B) no action based on any “adverse claim” (within the meaning of Section 8-102 of the UCC) to such Shares may be asserted against the Underwriters with respect to such security entitlement; for purposes of this representation, the Selling Stockholder may assume that when such

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payment, delivery (within the meaning of Section 8-301 of the UCC) and crediting occur, (x) such Shares will have been registered in the name of Cede or another nominee designated by DTC, in each case on the Company’s share registry in accordance with its certificate of incorporation, bylaws and applicable law, (y) DTC will be registered as a “clearing corporation” (within the meaning of Section 8-102 of the UCC) and (z) appropriate entries to the securities accounts (within the meaning of Section 8-501 of the UCC) of the Underwriters on the records of DTC will have been made pursuant to the UCC.

(d) No Stabilization. The Selling Stockholder has not taken, directly or indirectly, any action designed to or that could reasonably be expected to cause or result in any stabilization or manipulation of the price of the Shares.

(e) Pricing Disclosure Package. The Pricing Disclosure Package, at the Applicable Time did not, and as of the Closing Date, will not, contain any untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided that such representations and warranties set forth in this Section 4(e) apply only to statements or omissions made in reliance upon and in conformity with information furnished to the Company in writing by the Selling Stockholder expressly for use in such Pricing Disclosure Package, it being understood and agreed that the only such information furnished by the Selling Stockholder consists of (A) the legal name and address of the Selling Stockholder set forth in the footnote relating to the Selling Stockholder under the caption “Selling Stockholder” in the Base Prospectus and (B) the number of shares of Common Stock of the Company owned by the Selling Stockholder before and after the offering (excluding percentages) that appears in the table (and corresponding footnotes) under the caption “Selling Stockholder” in the Base Prospectus (collectively, the “Selling Stockholder Information”).

(f) Issuer Free Writing Prospectus. Other than the Registration Statement, the Preliminary Prospectus and the Prospectus, the Selling Stockholder (including its agents and representatives, other than the Underwriters in their capacity as such) has not prepared, made, used, authorized, approved or referred to and will not prepare, make, use, authorize, approve or refer to any Issuer Free Writing Prospectus, other than (i) any document not constituting a prospectus pursuant to Section 2(a)(10)(a) of the Securities Act or Rule 134 under the Securities Act or (ii) the documents, if any, listed on Annex A hereto, each electronic road show and any other written communications approved in writing in advance by the Company and the Underwriters.

(g) Registration Statement and Prospectus. As of the applicable effective date of the Registration Statement and any post-effective amendment thereto, the Registration Statement and any such post-effective amendment did not and will not contain any untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary in order to make the statements therein not misleading; and as of the date of the Prospectus and any amendment or supplement thereto and as of the Closing Date, the Prospectus will not contain any untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided that such representations and warranties set forth in this Section 4(g) apply only to statements or omissions made in reliance upon and in conformity with the Selling Stockholder Information.

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(h) Organization and Good Standing. The Selling Stockholder has been duly formed and is validly registered and in good standing under the laws of its jurisdiction of formation.

(i) Enforcement of Foreign Judgments. Any final judgment for a fixed or determined sum of money rendered by any U.S. federal or New York state court located in the State of New York having jurisdiction under its own laws in respect of any suit, action or proceeding against the Selling Stockholder based upon this Agreement would be declared enforceable against the Company by the courts of the Cayman Islands at common law without reconsideration or reexamination of the merits by an action commenced on the foreign judgment debt in the Grand Court of the Cayman Islands, provided such judgment (i) is given by a foreign court which had jurisdiction over the defendant according to Cayman Islands conflict of law rules; (ii) imposes on the judgment debtor a liability to pay a liquidated sum for which the judgment has been given; (iii) is final and conclusive; (iv) is not in respect of a penalty, taxes, a fine or similar fiscal or revenue obligations; and (v) was not obtained in a manner and is not of a kind the enforcement of which is contrary to natural justice or the public policy of the Cayman Islands.

5. Further Agreements of the Company. The Company covenants and agrees with each Underwriter that:

(a) Required Filings. The Company will file the final Prospectus with the Commission within the time periods specified by Rule 424(b) and Rule 430A, 430B or 430C under the Securities Act, will file any Issuer Free Writing Prospectus to the extent required by Rule 433 under the Securities Act; and the Company will file promptly all reports and any definitive proxy or information statements required to be filed by the Company with the Commission pursuant to Section 13(a), 13(c), 14 or 15(d) of the Exchange Act subsequent to the date of the Prospectus and for so long as the delivery of a prospectus is required in connection with the offering or sale of the Shares; and the Company will furnish copies of the Prospectus and each Issuer Free Writing Prospectus (to the extent not previously delivered) to the Underwriters in New York City prior to 10:00 A.M., New York City time, on the business day next succeeding the date of this Agreement in such quantities as the Underwriters may reasonably request. The Company will pay the registration fee for this offering within the time period required by Rule 456(b)(1) under the Securities Act (without giving effect to the proviso therein) and in any event prior to the Closing Date.

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(b) Delivery of Copies. The Company will, if requested, deliver, without charge, to each Underwriter (i) a conformed copy of the Registration Statement as originally filed and each amendment thereto (without exhibits) and (ii) during the Prospectus Delivery Period (as defined below), as many copies of the Prospectus (including all amendments and supplements thereto and documents incorporated by reference therein and each Issuer Free Writing Prospectus) as the Underwriters may reasonably request. As used herein, the term “Prospectus Delivery Period” means such period of time after the first date of the public offering of the Shares as in the opinion of counsel for the Underwriters a prospectus relating to the Shares is required by law to be delivered (or required to be delivered but for Rule 172 under the Securities Act) in connection with sales of the Shares by any Underwriter or dealer.

(c) Amendments or Supplements, Issuer Free Writing Prospectuses. Before making, preparing, using, authorizing, approving, referring to or filing any Issuer Free Writing Prospectus, and before filing any amendment or supplement to the Registration Statement, the Pricing Disclosure Package or the Prospectus, whether before or after the time that the Registration Statement becomes effective, the Company will furnish to the Underwriters and counsel for the Underwriters a copy of the proposed Issuer Free Writing Prospectus, amendment or supplement for review and will not make, prepare, use, authorize, approve, refer to or file any such Issuer Free Writing Prospectus or file any such proposed amendment or supplement to which the Underwriters reasonably object.

(d) Notice to the Underwriters. The Company will advise the Underwriters promptly, and confirm such advice in writing (which may be by electronic mail), (i) when the Registration Statement has become effective; (ii) when any amendment to the Registration Statement has been filed or becomes effective; (iii) when any supplement to the Pricing Disclosure Package, the Prospectus, any Issuer Free Writing Prospectus or any amendment to the Prospectus has been filed or distributed; (iv) of any request by the Commission for any amendment to the Registration Statement or any amendment or supplement to the Prospectus or the receipt of any comments from the Commission relating to the Registration Statement or any other request by the Commission for any additional information; (v) of the issuance by the Commission or any other governmental or regulatory authority of any order suspending the effectiveness of the Registration Statement or preventing or suspending the use of any Preliminary Prospectus, any of the Pricing Disclosure Package or the Prospectus or to the Company’s knowledge, the initiation or threatening of any proceeding for that purpose or pursuant to Section 8A of the Securities Act; (vi) of the occurrence of any event or development within the Prospectus Delivery Period as a result of which the Prospectus, any of the Pricing Disclosure Package or any Issuer Free Writing Prospectus as then amended or supplemented would include any untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances existing when the Prospectus, the Pricing Disclosure Package or any such Issuer Free Writing Prospectus is delivered to a purchaser, not misleading; (vii) of the receipt by the Company of any notice of objection of the Commission to the use of the Registration Statement or any post-effective amendment thereto pursuant to Rule 401(g)(2) under the Securities Act; and (viii) of the receipt by the Company of any notice with respect to any suspension of the qualification of the Shares for offer and sale in any jurisdiction or, to the Company’s knowledge, the initiation or threatening of any proceeding for such purpose; and the Company will use its reasonable best efforts to prevent the issuance of any such order suspending the effectiveness of the Registration Statement, preventing or suspending the use of any Preliminary Prospectus, any of the Pricing Disclosure Package or the Prospectus or suspending any such qualification of the Shares and, if any such order is issued, will use reasonable best efforts to obtain as soon as possible the withdrawal thereof.

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(e) Ongoing Compliance. (1) If during the Prospectus Delivery Period (i) any event or development shall occur or condition shall exist as a result of which the Prospectus as then amended or supplemented would include any untrue statement of a material fact or omit to state any material fact necessary in order to make the statements therein, in the light of the circumstances existing when the Prospectus is delivered to a purchaser, not misleading or (ii) it is necessary to amend or supplement the Prospectus to comply with law, the Company will promptly notify the Underwriters thereof and forthwith prepare and, subject to paragraph (c) above, file with the Commission and furnish to the Underwriters and to such dealers as the Underwriters may designate such amendments or supplements to the Prospectus (or any document to be filed with the Commission and incorporated by reference therein) as may be necessary so that the statements in the Prospectus as so amended or supplemented (or any document to be filed with the Commission and incorporated by reference therein) will not, in the light of the circumstances existing when the Prospectus is delivered to a purchaser, be misleading or so that the Prospectus will comply with law and (2) if at any time prior to the Closing Date (i) any event or development shall occur or condition shall exist as a result of which the Pricing Disclosure Package as then amended or supplemented would include any untrue statement of a material fact or omit to state any material fact necessary in order to make the statements therein, in the light of the circumstances existing when the Pricing Disclosure Package is delivered to a purchaser, not misleading or (ii) it is necessary to amend or supplement the Pricing Disclosure Package to comply with law, the Company will promptly notify the Underwriters thereof and forthwith prepare and, subject to paragraph (c) above, file with the Commission (to the extent required) and furnish to the Underwriters and to such dealers as the Underwriters may designate such amendments or supplements to the Pricing Disclosure Package (or any document to be filed with the Commission and incorporated by reference therein) as may be necessary so that the statements in the Pricing Disclosure Package as so amended or supplemented will not, in the light of the circumstances existing when the Pricing Disclosure Package is delivered to a purchaser, be misleading or so that the Pricing Disclosure Package will comply with law.

(f) Blue Sky Compliance. The Company will qualify the Shares for offer and sale under the securities or Blue Sky laws of such jurisdictions as the Underwriters shall reasonably request and will continue such qualifications in effect so long as reasonably required for distribution of the Shares; provided that the Company shall not be required to (i) qualify as a foreign corporation or other entity or as a dealer in securities in any such jurisdiction where it would not otherwise be required to so qualify, (ii) file any general consent to service of process in any such jurisdiction or (iii) subject itself to taxation in any such jurisdiction if it is not otherwise so subject.

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(g) Earning Statement. The Company will make generally available to its security holders and the Underwriters as soon as practicable an earning statement that satisfies the provisions of Section 11(a) of the Securities Act and Rule 158 of the Commission promulgated thereunder covering a period of at least twelve months beginning with the first fiscal quarter of the Company occurring after the “effective date” (as defined in Rule 158) of the Registration Statement; provided that the Company will be deemed to have furnished such statement to its security holders and the Underwriters to the extent they are filed on the Commission’s Electronic Data Gathering, Analysis, and Retrieval system or any successor thereto (“EDGAR”).

(h) Clear Market. For a period of 45 days after the date of the Prospectus, the Company will not (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 to purchase, or otherwise transfer or dispose of, directly or indirectly, or file with the Commission a registration statement under the Securities Act relating to, any shares of Common Stock of the Company or any securities convertible into or exercisable or exchangeable for Common Stock of the Company, or publicly disclose the intention to undertake any of the foregoing, or (ii) enter into any swap or other agreement that transfers, in whole or in part, any of the economic consequences of ownership of Common Stock of the Company or any such other securities, whether any such transaction described in clause (i) or (ii) above is to be settled by delivery of Common Stock of the Company or such other securities, in cash or otherwise, without the prior written consent of Goldman Sachs & Co. LLC, other than the Shares to be sold hereunder.

The restrictions described above do not apply to (i) the issuance of shares of Common Stock of the Company or securities convertible into or exercisable for shares of Common Stock of the Company pursuant to the conversion or exchange of convertible or exchangeable securities or the exercise of warrants or options (including net exercise) or the settlement of restricted stock units (“RSUs”) (including net settlement), in each case outstanding on the date of this Agreement and described in the Prospectus; (ii) grants of stock options, stock awards, restricted stock, RSUs, or other equity awards and the issuance of shares of Common Stock of the Company or securities convertible into or exercisable or exchangeable for shares of Common Stock of the Company (whether upon the exercise of stock options or otherwise) to the Company’s employees, officers, directors, advisors, or consultants pursuant to the terms of an equity compensation plan in effect as of the date hereof and described in the Prospectus; (iii) any filing by the Company of a Registration Statement on Form S-8 relating to a share-based compensation plan of the Company and its subsidiaries, inducement award or employee share purchase plan that is disclosed in the Registration Statement, the Pricing Disclosure Package and the Prospectus or any assumed employee benefit plan contemplated by clause (iv); or (iv) the issuance of up to 10.0% of the outstanding shares of Stock, or securities convertible into, exercisable for, or which are otherwise exchangeable for, Stock, immediately following the Closing Date, in connection with mergers, acquisitions or commercial or other strategic transactions (including, without limitation, entry into joint ventures, marketing or distribution agreements or collaboration agreements or acquisitions of technology, assets or intellectual property licenses), provided that such recipients enter into a lock-up agreement with the Underwriters.

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(i) [Reserved].

(j) No Stabilization. Neither the Company nor its subsidiaries will take, directly or indirectly, any action designed to or that could reasonably be expected to cause or result in any stabilization or manipulation of the price of the Stock.

(k) Exchange Listing. For so long as the Company is a reporting company pursuant to Section 12 or 15 of the Exchange Act, the Company will use its reasonable best efforts to maintain the listing of the Shares on the Nasdaq Global Select Market (the “Nasdaq Market”).

(l) Reports. For a period of three years from the date of this Agreement, so long as the Shares are outstanding, the Company will furnish to the Underwriters, as soon as they are available, copies of all reports or other communications (financial or other) furnished to holders of the Shares, and copies of any reports and financial statements furnished to or filed with the Commission or any national securities exchange or automatic quotation system; provided the Company will be deemed to have furnished such reports and financial statements to the Underwriters to the extent they are filed on the Commission’s EDGAR system.

(m) Record Retention. For a period of two years from the date of this Agreement, the Company will, pursuant to reasonable procedures developed in good faith, retain copies of each Issuer Free Writing Prospectus that is not filed with the Commission in accordance with Rule 433 under the Securities Act.

(n) Shelf Renewal. If immediately prior to the third anniversary (the “Renewal Deadline”) of the initial effective date of the Registration Statement, any of the Shares remain unsold by the Underwriters, the Company will, prior to the Renewal Deadline, file, if it has not already done so and is eligible to do so, a new automatic shelf registration statement relating to the Shares, in a form satisfactory to the Underwriters. If the Company is not eligible to file an automatic shelf registration statement, the Company will, prior to the Renewal Deadline, if it has not already done so, file a new shelf registration statement relating to the Shares, in a form satisfactory to the Underwriters, and will use its reasonable best efforts to cause such registration statement to be declared effective within 180 days after the Renewal Deadline. The Company will take all other action necessary or appropriate to permit the issuance and sale of the Shares to continue as contemplated in the expired registration statement relating to the Shares. References herein to the Registration Statement shall include such new automatic shelf registration statement or such new shelf registration statement, as the case may be.

6. Further Agreements of the Selling Stockholder. The Selling Stockholder covenants and agrees with each Underwriter that:

(a) No Stabilization. It will not take, directly or indirectly, any action designed to or that could reasonably be expected to cause or result in any stabilization or manipulation of the price of the Stock.

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(b) Tax Form. It will deliver to the Underwriters prior to or at the Closing Date a properly completed and executed United States Treasury Department Form W-9 or W-8 (or other applicable form or statement specified by the Treasury Department regulations in lieu thereof).

(c) Certification Regarding Beneficial Owners. To the extent requested by the Underwriters, it will deliver to the Underwriters prior to or at the Closing Date a properly completed and executed Certification Regarding Beneficial Owners of Legal Entity Customers, together with copies of identifying documentation, and the Selling Stockholder undertakes to provide such additional supporting documentation as the Underwriters may reasonably request in connection with the verification of the foregoing certification.

(d) Use of Proceeds. It will not directly or indirectly use the proceeds of the offering of the Shares hereunder, or lend, contribute or otherwise make available such proceeds to a subsidiary, joint venture partner or other person or entity (i) to fund or facilitate any activities of or business with any person that, at the time of such funding or facilitation, is the subject or target of Sanctions, (ii) to fund or facilitate any activities of or business in any Sanctioned Country, 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.

7. Certain Agreements of the Underwriters. Each Underwriter hereby severally represents and agrees that:

(a) It has not and will not use, authorize use of, refer to or participate in the planning for use of, any “free writing prospectus,” as defined in Rule 405 under the Securities Act (which term includes use of any written information furnished to the Commission by the Company and not incorporated by reference into the Registration Statement and any press release issued by the Company) other than (i) a free writing prospectus that contains no “issuer information” (as defined in Rule 433(h)(2) under the Securities Act) that was not included (including through incorporation by reference) in any Preliminary Prospectus or a previously filed Issuer Free Writing Prospectus, (ii) any Issuer Free Writing Prospectus listed on Annex A or prepared pursuant to Section 3(c) or Section 4(f) above (including any electronic road show approved in advance by the Company), or (iii) any free writing prospectus prepared by such underwriter and approved by the Company in advance in writing (each such free writing prospectus referred to in clauses (i) or (iii), an “Underwriter Free Writing Prospectus”).

(b) It has not and will not, without the prior written consent of the Company, use any free writing prospectus that contains the final terms of the Shares unless such terms have previously been included in a free writing prospectus filed with the Commission; provided that Underwriters may use a term sheet substantially in the form of Annex B hereto without the consent of the Company; provided further that any Underwriter using such term sheet shall notify the Company, and provide a copy of such term sheet to the Company, prior to, or substantially concurrently with, the first use of such term sheet.

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(c) It is not subject to any pending proceeding under Section 8A of the Securities Act with respect to the offering of the Shares (and will promptly notify the Company and the Selling Stockholder if any such proceeding against it is initiated during the Prospectus Delivery Period).

8. Conditions of Underwriters’ Obligations. The obligation of each Underwriter to purchase the Shares on the Closing Date as provided herein is subject to the performance by the Company and the Selling Stockholder of their respective covenants and other obligations hereunder and to the following additional conditions:

(a) Registration Compliance; No Stop Order. No order suspending the effectiveness of the Registration Statement shall be in effect, and no proceeding for such purpose, pursuant to Rule 401(g)(2) or pursuant to Section 8A under the Securities Act shall be pending before or threatened by the Commission; the Prospectus and each Issuer Free Writing Prospectus shall have been timely filed with the Commission under the Securities Act (in the case of an Issuer Free Writing Prospectus, to the extent required by Rule 433 under the Securities Act) and in accordance with Section 5(a) hereof; and all requests by the Commission for additional information shall have been complied with to the reasonable satisfaction of the Underwriters.

(b) Representations and Warranties. The respective representations and warranties of the Company and the Selling Stockholder contained herein shall be true and correct on the date hereof and on and as of the Closing Date; and the statements of the Company and its officers and the Selling Stockholder made in any certificates delivered pursuant to this Agreement shall be true and correct on and as of the Closing Date, in accordance with their respective terms.

(c) No Downgrade. Subsequent to the earlier of (A) the Applicable Time and (B) the execution and delivery of this Agreement, (i) no downgrading shall have occurred in the rating accorded any debt securities, convertible securities or preferred stock issued or guaranteed by the Company or any of its subsidiaries by any “nationally recognized statistical rating organization,” as such term is defined under Section 3(a)(62) under the Exchange Act and (ii) no such organization shall have publicly announced that it has under surveillance or review, or has changed its outlook with respect to, its rating of any such debt securities or preferred stock issued or guaranteed by the Company or any of its subsidiaries (other than an announcement with positive implications of a possible upgrading).

(d) No Material Adverse Change. No event or condition of a type described in Section 3(h) hereof shall have occurred or shall exist, which event or condition is not described in the Pricing Disclosure Package (excluding any amendment or supplement thereto) and the Prospectus (excluding any amendment or supplement thereto) and the effect of which in the judgment of the Underwriters makes it impracticable or inadvisable to proceed with the offering, sale or delivery of the Shares on the Closing Date, on the terms and in the manner contemplated by this Agreement, the Pricing Disclosure Package and the Prospectus.

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(e) Officer’s Certificate. The Underwriters shall have received on and as of the Closing Date, (x) a certificate of an executive officer (an “executive officer”) of the Company, who has specific knowledge of the Company’s financial matters and is satisfactory to the Underwriters (i) confirming that such officer has carefully reviewed the Registration Statement, the Pricing Disclosure Package and the Prospectus and, to the knowledge of such officer, the representations set forth in Sections 3(b), 3(c) and 3(e) hereof are true and correct, (ii) confirming that, to the knowledge of such officer, the other representations and warranties of the Company in this Agreement are true and correct and that the Company has complied with all agreements and satisfied all conditions on its part to be performed or satisfied hereunder at or prior to the Closing Date, and (iii) to the effect set forth in paragraphs (a), (c) and (d) above and (y) a certificate of the Selling Stockholder, in form and substance reasonably satisfactory to the Underwriters, (i) confirming that the representations of the Selling Stockholder set forth in Sections 4(e), 4(f) and 4(g) hereof are true and correct and (ii) confirming that the other representations and warranties of the Selling Stockholder in this Agreement are true and correct and that the Selling Stockholder has complied with all agreements and satisfied all conditions on their part to be performed or satisfied hereunder at or prior to such Closing Date.

(f) Comfort Letters and “Management Comfort.” (i) On the date of this Agreement and on the Closing Date, Ernst & Young LLP shall have furnished to the Underwriters, at the request of the Company, letters, dated the respective dates of delivery thereof and addressed to the Underwriters, in form and substance reasonably satisfactory to the Underwriters, containing statements and information of the type customarily included in accountants’ “comfort letters” to underwriters with respect to the financial statements and certain financial information contained or incorporated by reference in each of the Registration Statement, the Pricing Disclosure Package and the Prospectus; provided that the letters delivered on the Closing Date, shall use a “cut-off” date no more than two business days prior to such Closing Date.

(g) [Reserved]

(h) Opinion and 10b-5 Statement of Counsel for the Company. Gibson, Dunn & Crutcher LLP, counsel for the Company, shall have furnished to the Underwriters, at the request of the Company, their written opinion and 10b-5 statement, dated the Closing Date, and addressed to the Underwriters, in form and substance reasonably satisfactory to the Underwriters.

(i) Opinion of U.S. Counsel for the Selling Stockholder. Latham & Watkins LLP, U.S. counsel for the Selling Stockholder, shall have furnished to the Underwriters, at the request of the Selling Stockholder, their written opinion, dated the Closing Date, and addressed to the Underwriters, in form and substance reasonably satisfactory to the Underwriters.

(j) Opinion of Cayman Counsel for the Selling Stockholder. Walkers (Cayman) LLP, Cayman Islands counsel for the Selling Stockholder, shall have furnished to the Underwriters, at the request of the Selling Stockholder, their written opinion, dated the Closing Date, and addressed to the Underwriters, in form and substance reasonably satisfactory to the Underwriters.

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(k) Opinion and 10b-5 Statement of Counsel for the Underwriters. The Underwriters shall have received on and as of the Closing Date, an opinion and 10b-5 statement, addressed to the Underwriters, of Cravath, Swaine & Moore LLP, counsel for the Underwriters, with respect to such matters as the Underwriters may reasonably request, and such counsel shall have received such documents and information as they may reasonably request to enable them to pass upon such matters.

(l) No Legal Impediment to Sale. No action shall have been taken and no statute, rule, regulation or order shall have been enacted, adopted or issued by any federal, state or foreign governmental or regulatory authority that would, as of the Closing Date, prevent the sale of the Shares; and no injunction or order of any federal, state or foreign court shall have been issued that would, as of the Closing Date, prevent the sale of the Shares.

(m) Exchange Listing. The Shares to be delivered on the Closing Date shall have been approved for listing on the Nasdaq Market.

(n) Lock-up Agreements. The “lock-up” agreements, each substantially in the form of Exhibit A hereto, between you and the officers and directors of the Company listed on Schedule 3 hereto, relating to sales and certain other dispositions of shares of Stock or certain other securities, delivered to you on or before the date hereof, shall be in full force and effect on the Closing Date.

(o) Additional Documents. On or prior to the Closing Date the Company and Selling Stockholder shall have furnished to the Underwriters such further certificates and documents as the Underwriters may reasonably request and as are customary for a transaction of this nature.

All opinions, letters, certificates and evidence mentioned above or elsewhere in this Agreement shall be deemed to be in compliance with the provisions hereof only if they are in form and substance reasonably satisfactory to counsel for the Underwriters.

9. Indemnification and Contribution.

(a) Indemnification of the Underwriters by the Company. The Company agrees to indemnify and hold harmless each Underwriter, its affiliates, directors and officers and each person, if any, who controls such Underwriter within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act, from and against any and all losses, claims, damages and liabilities (including, without limitation, reasonable and documented legal fees and other reasonable and documented expenses incurred in connection with any suit, action or proceeding or any claim asserted, as such fees and expenses are incurred), joint or several, that arise out of, or are based upon, (i) any untrue statement or alleged untrue statement of a material fact contained in the Registration Statement or caused by any omission or alleged omission to state therein a material fact required to be stated therein or necessary in order to make the statements therein, not

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misleading, or (ii) any untrue statement or alleged untrue statement of a material fact contained in the Prospectus (or any amendment or supplement thereto), any Preliminary Prospectus, any Issuer Free Writing Prospectus, any “issuer information” filed or required to be filed pursuant to Rule 433(d) under the Securities Act, any road show as defined in Rule 433(h) under the Securities Act (a “road show”) or any Pricing Disclosure Package (including any Pricing Disclosure Package that has subsequently been amended), or caused by any omission or alleged omission to state therein a material fact necessary in order to make the statements therein, in light of the circumstances under which they were made, not misleading, in each case except insofar as such losses, claims, damages or liabilities arise out of, or are based upon, any untrue statement or omission or alleged untrue statement or omission made in reliance upon and in conformity with (i) the Underwriter Information or (ii) the Selling Stockholder Information.

(b) Indemnification of the Underwriters by the Selling Stockholder. The Selling Stockholder agrees to indemnify and hold harmless each Underwriter, its affiliates, directors and officers and each person, if any, who controls such Underwriter within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act to the same extent as the indemnity set forth in paragraph (a) above, but only with respect to, in each case, any such losses, claims, damages or liabilities that arise out of, or are based upon, any untrue statement or omission or alleged untrue statement or omission made in reliance upon and in conformity with any information furnished to the Company in writing by or on behalf of the Selling Stockholder expressly for use in the Registration Statement, the Prospectus (or any amendment or supplement thereto), any Preliminary Prospectus, any Issuer Free Writing Prospectus, any road show or any Pricing Disclosure Package (including any Pricing Disclosure Package that has subsequently been amended), it being understood and agreed upon that the only such information furnished by the Selling Stockholder consists of the Selling Stockholder Information. The Selling Stockholder shall not be liable under the indemnity agreement contained in this paragraph and the contribution provisions of this Section 9 in excess of an amount equal to the aggregate net proceeds (after deducting underwriting commissions and discounts, but before deducting expenses) applicable to the Shares sold by the Selling Stockholder pursuant to this Agreement (the “Selling Stockholder Proceeds”).

(c) Indemnification of the Company and the Selling Stockholder. Each Underwriter agrees, severally and not jointly, to indemnify and hold harmless the Company, its directors, 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 and the Selling Stockholder to the same extent as the indemnity set forth in paragraph (a) above, but only with respect to, in each case, any such losses, claims, damages or liabilities that arise out of, or are based upon, any untrue statement or omission or alleged untrue statement or omission made in reliance upon and in conformity with any information relating to such Underwriter furnished to the Company in writing by or on behalf of such Underwriter expressly for use in the Registration Statement, the Prospectus (or any amendment or supplement thereto), any Preliminary Prospectus, any Issuer Free Writing Prospectus, any road show or any Pricing Disclosure Package (including any Pricing Disclosure Package that has subsequently been amended), it being understood and agreed upon that the only such

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information furnished by any Underwriter consists of the following information in the Prospectus furnished on behalf of each Underwriter: the concession and reallowance figures appearing in the third paragraph under the caption “Underwriting,” the first, second, third, fourth, and fifth sentences under the heading “Price Stabilization and Short Positions” under the caption “Underwriting”, and the legal name and address of such Underwriter (collectively, the “Underwriter Information”).

(d) Notice and Procedures. If any suit, action, proceeding (including any governmental or regulatory investigation), claim or demand shall be brought or asserted against any person in respect of which indemnification may be sought pursuant to paragraph (a), (b) or (c) above, such person (the “Indemnified Person”) shall promptly notify the person against whom such indemnification may be sought (the “Indemnifying Person”) in writing; provided that the failure to notify the Indemnifying Person shall not relieve it from any liability that it may have under paragraphs (a), (b) or (c) above, except to the extent that it has been materially prejudiced (through the forfeiture of substantive rights or defenses) by such failure; and provided, further, that the failure to notify the Indemnifying Person shall not relieve it from any liability that it may have to an Indemnified Person otherwise than under paragraphs (a), (b) or (c) above. If any such proceeding shall be brought or asserted against an Indemnified Person and it shall have notified the Indemnifying Person thereof, the Indemnifying Person shall retain counsel reasonably satisfactory to the Indemnified Person (who shall not, without the consent of the Indemnified Person, be counsel to the Indemnifying Person) to represent the Indemnified Person and any others entitled to indemnification pursuant to this Section 9 that the Indemnifying Person may designate in such proceeding and shall pay the reasonable and documented fees and expenses of such proceeding and shall pay the reasonable and documented fees and expenses of such counsel related to such proceeding, as incurred. In any such proceeding, any Indemnified Person shall have the right to retain its own counsel, but the reasonable and documented fees and expenses of such counsel shall be at the expense of such Indemnified Person unless (i) the Indemnifying Person and the Indemnified Person shall have mutually agreed to the contrary; (ii) the Indemnifying Person has failed within a reasonable time to retain counsel reasonably satisfactory to the Indemnified Person; (iii) the Indemnified Person shall have reasonably concluded that there may be legal defenses available to it that are different from or in addition to those available to the Indemnifying Person; or (iv) the named parties in any such proceeding (including any impleaded parties) include both the Indemnifying Person and the Indemnified Person and representation of both parties by the same counsel would be inappropriate due to actual or potential differing interests between them. It is understood and agreed that the Indemnifying Person shall not, in connection with any proceeding or related proceeding in the same jurisdiction, be liable for the fees and expenses of more than one separate firm (in addition to any local counsel) for all Indemnified Persons, and that all such fees and expenses shall be reimbursed as they are incurred. Any such separate firm for any Underwriter, its affiliates, directors and officers and any control persons of such Underwriter shall be designated in writing by Goldman Sachs & Co. LLC and any such separate firm for the Company, its directors, its officers who signed the Registration Statement and any control persons of the Company shall be designated in writing by the Company and any such separate firm for the Selling Stockholder shall be designated in writing by the Selling

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Stockholder. The Indemnifying Person shall not be liable for any settlement of any proceeding effected without its written consent, but if settled with such consent, the Indemnifying Person agrees to indemnify each Indemnified Person from and against any loss or liability by reason of such settlement. No Indemnifying Person shall, without the written consent of the Indemnified Person, effect any settlement of any pending or threatened proceeding in respect of which any Indemnified Person is or could have been a party and indemnification could have been sought hereunder by such Indemnified Person, unless such settlement (x) includes an unconditional release of such Indemnified Person, in form and substance reasonably satisfactory to such Indemnified Person, from all liability on claims that are the subject matter of such proceeding and (y) does not include any statement as to or any admission of fault, culpability or a failure to act by or on behalf of any Indemnified Person.

(e) Contribution. If the indemnification provided for in paragraphs (a), (b) or (c) above is unavailable to an Indemnified Person or insufficient in respect of any losses, claims, damages or liabilities referred to therein (other than as a result of the limitation on indemnification provided for therein), then each Indemnifying Person under such paragraph, in lieu of indemnifying such Indemnified Person thereunder, shall contribute to the amount paid or payable by such Indemnified Person as a result of such losses, claims, damages or liabilities (i) in such proportion as is appropriate to reflect the relative benefits received by the Company and the Selling Stockholder, on the one hand, and the Underwriters, on the other hand, from the offering of the Shares or (ii) if the allocation provided by clause (i) is not permitted by applicable law, in such proportion as is appropriate to reflect not only the relative benefits referred to in clause (i) but also the relative fault of the Company and the Selling Stockholder, on the one hand, and the Underwriters, on the other hand, in connection with the statements or omissions that resulted in such losses, claims, damages or liabilities, as well as any other relevant equitable considerations. The relative benefits received by the Company and the Selling Stockholder, on the one hand, and the Underwriters, on the other hand, shall be deemed to be in the same respective proportions as the net proceeds (before deducting expenses) received by the Selling Stockholder from the sale of the Shares, on one hand, and the total underwriting discounts and commissions received by the Underwriters in connection therewith, on the other hand, in each case as set forth in the table on the cover of the Prospectus, bear to the aggregate offering price of the Shares. The relative fault of the Company and the Selling Stockholder, on the one hand, and the Underwriters, on the other hand, shall be determined by reference to, among other things, whether the untrue or alleged untrue statement of a material fact or the omission or alleged omission to state a material fact relates to information supplied by the Company or the Selling Stockholder or by the Underwriters and the parties’ relative intent, knowledge, access to information and opportunity to correct or prevent such statement or omission. The Selling Stockholder shall not be liable under the contribution agreement contained in this paragraph and the indemnification provisions of this Section 9 in excess of the Selling Stockholder Proceeds.

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(f) Limitation on Liability. The Company, the Selling Stockholder and the Underwriters agree that it would not be just and equitable if contribution pursuant to paragraph (e) above were determined by pro rata allocation (even if the Underwriters were treated as one entity for such purpose) or by any other method of allocation that does not take account of the equitable considerations referred to in paragraph (e) above. The amount paid or payable by an Indemnified Person as a result of the losses, claims, damages and liabilities referred to in paragraph (e) above shall be deemed to include, subject to the limitations set forth above, any legal or other expenses incurred by such Indemnified Person in connection with any such action or claim. Notwithstanding the provisions of paragraph (e) above and this paragraph (f), in no event shall an Underwriter be required to contribute any amount in excess of the amount by which the total underwriting discounts and commissions received by such Underwriter with respect to the offering of the Shares exceeds the amount of any damages that such Underwriter has otherwise been required to pay by reason of such untrue or alleged untrue statement or omission or alleged omission. 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 Underwriters’ obligations to contribute pursuant to paragraph (e) above and this paragraph (f) are several in proportion to their respective purchase obligations hereunder and not joint. For the avoidance of doubt, the aggregate liability of the Selling Stockholder under the indemnity and contribution agreements contained in this Section 9 shall not exceed the Selling Stockholder Proceeds.

(g) Non-Exclusive Remedies. The remedies provided for in this Section 9 are not exclusive and shall not limit any rights or remedies that may otherwise be available to any Indemnified Person at law or in equity.

10. Effectiveness of Agreement. This Agreement shall become effective as of the date first written above.

11. Termination. This Agreement may be terminated in the absolute discretion of the Underwriters, by written notice to the Company and Selling Stockholder, if after the execution and delivery of this Agreement and on or prior to the Closing Date (i) trading generally shall have been suspended or materially limited on or by any of the New York Stock Exchange or the Nasdaq Market; (ii) trading of any securities issued or guaranteed by the Company shall have been suspended on any exchange or in any over-the-counter market; (iii) a general moratorium on commercial banking activities shall have been declared by federal or New York State authorities; or (iv) there shall have occurred any outbreak or escalation of hostilities or any change in financial markets or any calamity or crisis, either within or outside the United States, that, in the judgment of the Underwriters, is material and adverse and makes it impracticable or inadvisable to proceed with the offering, sale or delivery of the Shares on the Closing Date on the terms and in the manner contemplated by this Agreement, the Pricing Disclosure Package and the Prospectus.

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12. Defaulting Underwriter.

(a) If, on the Closing Date, any Underwriter defaults on its obligation to purchase the Shares that it has agreed to purchase hereunder on such date, the non-defaulting Underwriters may in their discretion arrange for the purchase of such Shares by other persons satisfactory to the Company and the Selling Stockholder on the terms contained in this Agreement. If, within 36 hours after any such default by any Underwriter, the non-defaulting Underwriters do not arrange for the purchase of such Shares, then the Company and the Selling Stockholder shall be entitled to a further period of 36 hours within which to procure other persons satisfactory to the non-defaulting Underwriters to purchase such Shares on such terms. If other persons become obligated or agree to purchase the Shares of a defaulting Underwriter, either the non-defaulting Underwriters or the Company or the Selling Stockholder may postpone the Closing Date for up to five full business days in order to effect any changes that in the opinion of counsel for the Company, counsel for the Selling Stockholder or counsel for the Underwriters may be necessary in the Registration Statement and the Prospectus or in any other document or arrangement, and the Company agrees to promptly prepare any amendment or supplement to the Registration Statement and the Prospectus that effects any such changes. As used in this Agreement, the term “Underwriter” includes, for all purposes of this Agreement unless the context otherwise requires, any person not listed in Schedule 1 hereto that, pursuant to this Section 12, purchases Shares that a defaulting Underwriter agreed but failed to purchase.

(b) If, after giving effect to any arrangements for the purchase of the Shares of a defaulting Underwriter or Underwriters by the non-defaulting Underwriters, the Company and the Selling Stockholder as provided in paragraph (a) above, the aggregate number of Shares that remain unpurchased on the Closing Date does not exceed one-eleventh of the aggregate number of Shares to be purchased on such date, then the Company and the Selling Stockholder shall have the right to require each non-defaulting Underwriter to purchase the number of Shares that such Underwriter agreed to purchase hereunder on such date plus such Underwriter’s pro rata share (based on the number of Shares that such Underwriter agreed to purchase on such date) of the Shares of such defaulting Underwriter or Underwriters for which such arrangements have not been made.

(c) If, after giving effect to any arrangements for the purchase of the Shares of a defaulting Underwriter or Underwriters by the non-defaulting Underwriters, the Company and the Selling Stockholder as provided in paragraph (a) above, the aggregate number of Shares that remain unpurchased on the Closing Date exceeds one-eleventh of the aggregate amount of Shares to be purchased on such date, or if the Company and the Selling Stockholder shall not exercise the right described in paragraph (b) above, then this Agreement shall terminate without liability on the part of the non-defaulting Underwriters. Any termination of this Agreement pursuant to this Section 12 shall be without liability on the part of the Company, except that the Company will continue to be liable for the payment of expenses as set forth in Section 13 hereof and except that the provisions of Section 9 hereof shall not terminate and shall remain in effect.

(d) Nothing contained herein shall relieve a defaulting Underwriter of any liability it may have to the Company, the Selling Stockholder or any non-defaulting Underwriter for damages caused by its default.

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13. Payment of Expenses.

(a) Whether or not the transactions contemplated by this Agreement are consummated or this Agreement is terminated, the Company will pay or cause to be paid all costs and expenses incident to the performance of its and the Selling Stockholder’s obligations hereunder, including without limitation, (i) the costs incident to the authorization, issuance, sale, preparation and delivery of the Shares, subject to the last sentence of this paragraph, and any stamp, transfer, issuance or other similar taxes payable in that connection; (ii) the costs incident to the preparation, printing and filing under the Securities Act of the Registration Statement, any Preliminary Prospectus, any Issuer Free Writing Prospectus, any Pricing Disclosure Package and the Prospectus (including all exhibits, amendments and supplements thereto) and the distribution thereof; (iii) the costs of reproducing and distributing this Agreement; (iv) the fees and expenses of the Company’s counsel and independent accountants; (v) the fees and expenses incurred in connection with the registration or qualification and determination of eligibility for investment of the Shares under the laws of such jurisdictions as the Underwriters may designate and the preparation, printing and distribution of a Blue Sky Memorandum (including reasonable and documented related fees and expenses of counsel for the Underwriters); (vi) the cost of preparing stock certificates; (vii) the costs and charges of any transfer agent and any registrar; (viii) all expenses and application fees incurred in connection with any filing with, and clearance of the offering by, FINRA; provided, however, that the amounts payable by the Company for the fees and disbursements of counsel to the Underwriters pursuant to this subsection (viii) and for the fees and expenses pursuant to subsection (v) shall not exceed $25,000 in the aggregate; and (ix) all expenses incurred by the Company in connection with any “road show” presentation to potential investors; provided, however, that the Underwriters shall pay one-half of the cost of any aircraft chartered in connection with the “road show.” For the avoidance of doubt, subject to Section 13(c), it is understood that the Selling Stockholder will pay all of their own underwriting discounts and commissions, if any, payable upon the sale or delivery of their respective Shares pursuant to this Agreement, as well as all other fees and disbursements of counsel for the Selling Stockholder not paid by the Company pursuant to this Section 13(a). It is further understood, however, that except as provided in this Section 13 and Section 9 hereof, the Underwriters shall pay their own expenses, including the fees and disbursements of their counsel, stock transfer taxes payable on the resale of any of the Shares held by them, any advertising expenses connected with any offers they may make and any expenses incurred by the Underwriters in connection with any “road show” presentation.

(b) If (i) this Agreement is terminated pursuant to Section 11, (ii) the Selling Stockholder for any reason fails to tender the Shares for delivery to the Underwriters or (iii) the Underwriters decline to purchase the Shares for any reason permitted under this Agreement (other than pursuant to Section 12 hereof), the Company agrees to reimburse the Underwriters for all reasonable and documented out-of-pocket costs and expenses (including the reasonable and documented fees and expenses of their counsel), other than those of a defaulting Underwriter in connection with a termination under Section 12 hereof, reasonably incurred by the Underwriters in connection with this Agreement and the offering of the Shares contemplated hereby.

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(c) The provisions of this Section 13 shall not affect any separate, valid agreement that the Company and the Selling Stockholder may make for the sharing of such costs and expenses.

14. Persons Entitled to Benefit of Agreement. This Agreement shall inure to the benefit of and be binding upon the parties hereto and their respective successors and any controlling persons referred to herein, and the affiliates, officers and directors of each Underwriter referred to in Section 9 hereof and the officers and directors of the Company referred to in Section 9 hereof. Nothing in this Agreement is intended or shall be construed to give any other person any legal or equitable right, remedy or claim under or in respect of this Agreement or any provision contained herein. No purchaser of Shares from any Underwriter shall be deemed to be a successor merely by reason of such purchase.

15. Survival. The respective indemnities, rights of contribution, representations, warranties and agreements of the Company, the Selling Stockholder and the Underwriters contained in this Agreement or made by or on behalf of the Company, the Selling Stockholder or the Underwriters pursuant to this Agreement or any certificate delivered pursuant hereto shall survive the delivery of and payment for the Shares and shall remain in full force and effect, regardless of any termination of this Agreement or any investigation made by or on behalf of the Company, the Selling Stockholder or the Underwriters or the directors, officers, controlling persons or affiliates referred to in Section 9 hereof.

16. Certain Defined Terms. For purposes of this Agreement, (a) except where otherwise expressly provided, the term “affiliate” has the meaning set forth in Rule 405 under the Securities Act; (b) the term “business day” means any day other than a day on which banks are permitted or required to be closed in New York City; (c) the term “subsidiary” has the meaning set forth in Rule 405 under the Securities Act; and (d) the term “significant subsidiary” has the meaning set forth in Rule 1-02 of Regulation S-X under the Exchange Act.

17. Compliance with USA Patriot Act. In accordance with the requirements of the USA Patriot Act (Title III of Pub. L. 107-56 (signed into law October 26, 2001)), the Underwriters are required to obtain, verify and record information that identifies their respective clients, including the Company and the Selling Stockholder, which information may include the name and address of their respective clients, as well as other information that will allow the Underwriters to properly identify their respective clients.

18. Miscellaneous.

(a) Notices. All notices and other communications hereunder shall be in writing and shall be deemed to have been duly given if mailed or transmitted and confirmed by any standard form of telecommunication.

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Notices to the Underwriters shall be given to:

Goldman Sachs & Co. LLC

200 West Street

New York, New York 10282-2198

Attention: Registration Department

Notices to the Company shall be given to it at:

c/o QuidelOrtho Corporation

9975 Summers Ridge Road

San Diego, CA 92121

Tel: (858) 552-1100

Attention to: Chief Financial Officer

With copies to:

QuidelOrtho Corporation

9975 Summers Ridge Road

San Diego, CA 92121

Tel: (858) 552-1100

Attention to: General Counsel

Gibson, Dunn & Crutcher LLP

One Embarcadero Center, Suite 2600

San Francisco, CA 94111-3715

Tel: (415) 393-8200

Attention to: Ryan A. Murr and Branden C. Berns

Notices to the Selling Stockholder shall be given to it at:

The Carlyle Group

One Vanderbilt Avenue, Suite 3400

New York, NY 10017

Fax: (212) 813-4901

Tel: (212) 813-4900

Attention to: Robert Schmidt

With copy to:

Latham and Watkins LLP

555 Eleventh Street NW

Suite 1000

Washington, DC 20004-1304

Fax: (202) 637-2201

Tel: (202) 637-2200

Attention to: Patrick Shannon and Jason Licht

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(b) Governing Law. This Agreement and any claim, controversy or dispute arising under or related to this Agreement shall be governed by and construed in accordance with the laws of the State of New York.

(c) Submission to Jurisdiction. Each of the Company and the Selling Stockholder hereby submits to the exclusive jurisdiction of the U.S. federal and New York state courts in the Borough of Manhattan in The City of New York in any suit or proceeding arising out of or relating to this Agreement or the transactions contemplated hereby. Each of the Company and the Selling Stockholder waives any objection which it may now or hereafter have to the laying of venue of any such suit or proceeding in such courts. Each of the Company and the Selling Stockholder agrees that final judgment in any such suit, action or proceeding brought in such court shall be conclusive and binding upon the Company and the Selling Stockholder and may be enforced in any court to the jurisdiction of which the Company and the Selling Stockholder is subject by a suit upon such judgment. The Selling Stockholder irrevocably appoints CT Corporation System, 28 Liberty Street, New York, New York 10005, as its authorized agent in the Borough of Manhattan in The City of New York upon which process may be served in any such suit or proceeding, and agrees that service of process upon such authorized agent, and written notice of such service to the Selling Stockholder by the person serving the same to the address provided in this Section 18(c), shall be deemed in every respect effective service of process upon the Selling Stockholder in any such suit or proceeding. The Selling Stockholder hereby represents and warrants that such authorized agent has accepted such appointment and has agreed to act as such authorized agent for service of process. The Selling Stockholder further agrees to take any and all action as may be necessary to maintain such designation and appointment of such authorized agent in full force and effect for a period of seven years from the date of this Agreement.

(d) Waiver of Jury Trial. Each of the parties hereto hereby waives any right to trial by jury in any suit or proceeding arising out of or relating to this Agreement.

(e) Recognition of the U.S. Special Resolution Regimes.

(i) In the event that any Underwriter that is a Covered Entity becomes subject to a proceeding under a U.S. Special Resolution Regime, the transfer from such Underwriter of this Agreement, and any interest and obligation in or under this Agreement, will be effective to the same extent as the transfer would be effective under the U.S. Special Resolution Regime if this Agreement, and any such interest and obligation, were governed by the laws of the United States or a state of the United States.

(ii) In the event that any Underwriter that is a Covered Entity or a BHC Act Affiliate of such Underwriter becomes subject to a proceeding under a U.S. Special Resolution Regime, Default Rights under this Agreement that may be exercised against such Underwriter are permitted to be exercised to no greater extent than such Default Rights could be exercised under the U.S. Special Resolution Regime if this Agreement were governed by the laws of the United States or a state of the United States.

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As used in this Section 18(e):

“BHC Act Affiliate” has the meaning assigned to the term “affiliate” in, and shall be interpreted in accordance with, 12 U.S.C. § 1841(k).

“Covered Entity” means any of the following:

(i) a “covered entity” as that term is defined in, and interpreted in accordance with, 12 C.F.R. § 252.82(b);

(ii) a “covered bank” as that term is defined in, and interpreted in accordance with, 12 C.F.R. § 47.3(b); or

(iii) a “covered FSI” as that term is defined in, and interpreted in accordance with, 12 C.F.R. § 382.2(b).

“Default Right” has the meaning assigned to that term in, and shall be interpreted in accordance with, 12 C.F.R. §§ 252.81, 47.2 or 382.1, as applicable.

“U.S. Special Resolution Regime” means each of (i) the Federal Deposit Insurance Act and the regulations promulgated thereunder and (ii) Title II of the Dodd-Frank Wall Street Reform and Consumer Protection Act and the regulations promulgated thereunder.

(f) Counterparts. This Agreement may be signed in counterparts (which may include counterparts delivered by any standard form of telecommunication), each of which shall be an original and all of which together shall constitute one and the same instrument. Any signature to this Agreement may be delivered by facsimile, electronic mail (including pdf) or any electronic signature complying with the U.S. federal ESIGN Act of 2000 or the New York Electronic Signature and Records Act or other transmission method and any counterpart so delivered shall be deemed to have been duly and validly delivered and be valid and effective for all purposes to the fullest extent permitted by applicable law.

(g) Amendments or Waivers. No amendment or waiver of any provision of this Agreement, nor any consent or approval to any departure therefrom, shall in any event be effective unless the same shall be in writing and signed by the parties hereto.

(h) Headings. The headings herein are included for convenience of reference only and are not intended to be part of, or to affect the meaning or interpretation of, this Agreement.

[Remainder of page intentionally left blank]

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If the foregoing is in accordance with your understanding, please indicate your acceptance of this Agreement by signing in the space provided below.

[Signature Page to Underwriting Agreement]

[Signature Page to Underwriting Agreement]

Accepted as of the date first written above.

Goldman Sachs & Co. LLC

[Signature Page to Underwriting Agreement]

Schedule 1

Sch. 1-1

Schedule 2

Sch. 2-1

Schedule 3

Directors and Officers Subject to Lock-Up

[Intentionally Omitted]

Sch. 3-1

Annex A

None.

Shares: 8,260,183 shares.

Public Offering Price Per Share: $35.60

Annex A-1

Annex B

Pricing Term Sheet

None.

Annex B-1

Annex C

Free Writing Prospectus

[Attached]

Exhibit A

FORM OF LOCK-UP AGREEMENT

[Intentionally Omitted]

Exhibit 99.1

QuidelOrtho Corporation Announces Pricing of Secondary Offering of Common Stock by the Carlyle Group

SAN DIEGO, CA, November 19, 2024 – QuidelOrtho Corporation (Nasdaq: QDEL) (the “Company” or “QuidelOrtho”), a global provider of innovative in vitro diagnostics technologies designed for point-of-care settings, clinical labs and transfusion medicine, announced today the pricing of the previously announced underwritten secondary offering (the “Offering”) by Carlyle Partners VI Cayman Holdings, L.P. (the “Selling Stockholder”) of 8,260,183 shares of the Company’s common stock (“Common Stock”).

The Selling Stockholder will receive all of the proceeds from the Offering. The Company is not selling any shares of Common Stock in the Offering and will not receive any proceeds from the Offering.

Goldman Sachs & Co. LLC is acting as the sole underwriter of the Offering. The Offering is expected to close on November 21, 2024, subject to customary closing conditions.

Goldman Sachs & Co. LLC will offer the shares of Common Stock to the public at a fixed price, which may be changed at any time without notice.

The Offering is being made pursuant to an effective shelf registration statement (including a prospectus) filed by the Company with the U.S. Securities and Exchange Commission (“SEC”). A final prospectus supplement and accompanying prospectus describing the terms of the Offering will be filed with the SEC, copies of which may be obtained, when available, from Goldman Sachs & Co. LLC, Attention: Prospectus Department, 200 West Street, New York, NY, 10282, phone number: (866) 471-2526, or by email at prospectus-ny@ny.email.gs.com. These documents may also be obtained free of charge by visiting EDGAR on the SEC’s website at www.sec.gov.

This press release does not constitute an offer to sell or the solicitation of an offer to buy these securities, nor shall there be any sale of these securities in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.

Cautionary Note Concerning Forward Looking Statements

This press release contains “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995, Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. These statements are any statement contained herein that is not strictly historical, including, but not limited to, statements regarding the expected sale of Common Stock by the Selling Stockholder in the Offering. Without limiting the foregoing, the words “may,” “will,” “would,” “should,” “might,” “expect,” “anticipate,” “believe,” “estimate,” “plan,” “intend,” “goal,” “project,” “strategy,” “future,” “continue” or similar words, expressions or the negative of such terms or other comparable terminology are intended to identify forward-looking statements. Such statements are based on the beliefs and expectations of QuidelOrtho’s management as of today and are subject to significant known and unknown risks and uncertainties. Actual results or outcomes may differ significantly from those set forth or implied in the forward-looking statements. The factors discussed in QuidelOrtho’s Annual Report on Form 10-K for the fiscal year ended December 31, 2023 and subsequent reports filed with the SEC, including under Part I, Item 1A, “Risk Factors” of the Form 10-K, among others, could cause actual results to differ from those set forth or implied in the forward-looking statements. You should not rely on forward-looking statements as predictions of future events because these statements are based on assumptions that may not come true and are speculative by their nature. All forward-looking statements are based on information currently available to QuidelOrtho and speak only as of the date hereof. QuidelOrtho undertakes no obligation to update any of the forward-looking information or time-sensitive information included in this press release, whether as a result of new information, future events, changed expectations or otherwise, except as required by law.

About QuidelOrtho Corporation

QuidelOrtho Corporation (Nasdaq: QDEL) is a world leader in in vitro diagnostics, developing and manufacturing intelligent solutions that transform data into understanding and action for more people in more places every day.

Offering industry-leading expertise in immunoassay and molecular testing, clinical chemistry, and transfusion medicine, bringing fast, accurate and reliable diagnostics when and where they are needed—from home to hospital, lab to clinic. So that patients, clinicians and health officials can spot trends sooner, respond quicker and chart the course ahead with accuracy and confidence.

Building upon its many years of groundbreaking innovation, QuidelOrtho continues to partner with customers across the healthcare continuum and around the globe to forge a new diagnostic frontier. One where insights and solutions know no bounds, expertise seamlessly connects and a more informed path is illuminated for each of us.

QuidelOrtho is advancing diagnostics to power a healthier future.

Investor Contact:

Juliet Cunningham

Vice President, Investor Relations

IR@QuidelOrtho.com

Media Contact:

D. Nikki Wheeler

Senior Director, Corporate Communications

media@QuidelOrtho.com