Chinook Therapeutics (KDNY) 8-K Aduro Biotech and Chinook Therapeutics Announce Definitive Merger Agreement

Exhibit 10.3

FORM OF SUPPORT AGREEMENT

This SUPPORT AGREEMENT (this “Agreement”), dated as of June 1, 2020, is by and between Aduro Biotech, Inc., a Delaware corporation (“Parent”), and the Person set forth onSchedule A (the “Stockholder”).

WHEREAS, concurrently with the execution and delivery hereof, Parent, Aspire Merger Sub, Inc., a Delaware corporation and a direct wholly owned subsidiary of Parent (“Merger Sub”), and Chinook Therapeutics, U.S., Inc., a Delaware corporation (the “Company”) have entered into an Agreement and Plan of Merger and Reorganization (as such agreement may be amended or supplemented from time to time pursuant to the terms thereof, the “Merger Agreement”), which provides, among other things, for the merger of Merger Sub with and into the Company, with the Company continuing as the surviving corporation (the “Merger”), upon the terms and subject to the conditions set forth in the Merger Agreement (capitalized terms used but not otherwise defined herein shall have the respective meanings ascribed to such terms in the Merger Agreement);

WHEREAS, as of the date hereof, the Stockholder is holder of the number of shares of Company Capital Stock and/or Company Options, in each case, set forth opposite the Stockholder’s name onSchedule A (all such shares of Company Capital Stock set forth onSchedule A or hereafter issued to or otherwise acquired, whether beneficially or of record, or owned by the Stockholder prior to the termination of this Agreement, being referred to herein as the “Subject Shares,” and together with all such Company Options set forth on Schedule A or securities convertible into, exchangeable for or that represent the right to receive Company Common Stock that are hereinafter issued to or otherwise acquired, whether beneficially or of record, or owned by the Stockholder prior to the termination of this Agreement, being referred to herein as the “Subject Securities”); and

WHEREAS, as a condition to its willingness to enter into the Merger Agreement, Parent has required that the Stockholder, and as an inducement and in consideration therefor, the Stockholder (in the Stockholder’s capacity as a holder of the Subject Securities) has agreed to, enter into this Agreement.

NOW, THEREFORE, in consideration of the foregoing and the respective representations, warranties, covenants and agreements set forth below and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto, intending to be legally bound, do hereby agree as follows:

ARTICLE I

VOTING AGREEMENT; GRANT OF PROXY

The Stockholder hereby covenants and agrees that:

1.1.Voting of Subject Shares. From and after the date hereof, at every meeting of the holders of Company Capital Stock (the “Company Stockholders”), however called, and at every adjournment or postponement thereof (or pursuant to a written consent if the Company Stockholders act by written consent in lieu of a meeting), the Stockholder shall, or shall cause the holder of record on any applicable record date to, be present (in person or by proxy) and to vote (or cause to be voted) the Subject Shares (a) in favor of (i) the adoption of the Merger Agreement and the approval of the Merger, (ii) the approval of the Contemplated Transactions, (iii) the conversion of each share of Company Preferred Stock into a share of Company Common Stock at the then effective conversion rate pursuant to Article Fourth Part B Section 5.1(b) of the Company’s Amended and Restated Certificate of Incorporation, with such conversion to be effective immediately prior to, and contingent upon the occurrence of, the Closing and (iv) any other proposal included in the written consent presented to the Company Stockholders in connection with, or related to, the consummation of the Merger for which the Company Board has recommended that the Company Stockholders vote in favor and (b) against (i) any competing Acquisition Proposal with respect to the Company, (ii) any action, proposal, agreement, transaction or proposed transaction that would reasonably be expected to materially impede, interfere with, delay, postpone, discourage or adversely affect the Merger or any of the other Contemplated Transaction (other than as expressly contemplated by the Merger Agreement or the Company Disclosure Schedule).

1.2.No Inconsistent Arrangements. Except as expressly permitted or required hereunder or under the Merger Agreement, the Stockholder shall not, directly or indirectly, (a) create any Encumbrance other than restrictions imposed by applicable Law, pursuant to this Agreement or pursuant to the governance documents of the Company on any Subject Securities, (b) transfer, sell, assign, gift or otherwise dispose of (collectively, “Transfer”), or enter into any contract with respect to any Transfer of the Subject Securities or any interest therein, (c) grant or permit the grant of any proxy, power of attorney or other authorization in or with respect to the Subject Securities, (d) deposit or permit the deposit of the Subject Securities into a voting trust or enter into a voting agreement or arrangement with respect to the Subject Securities or (e) take any action that would make any representation or warranty of the Stockholder herein untrue or incorrect in any material respect, or have the effect of preventing the Stockholder from performing the Stockholder’s obligations hereunder;provided that this clause (e) shall not prevent any director or officer of the Company, in such capacity, from taking such actions as may be permitted under Section 4.4 of the Merger Agreement. Any action taken in violation of the foregoing sentence shall be null and voidab initio. Notwithstanding the foregoing, the Stockholder may make Transfers of the Subject Securities (i) by will, operation of law, or for estate planning or charitable purposes, (ii) to stockholders, corporations, partnerships or other business entities that are direct or indirect affiliates (within the meaning set forth in Rule 405 under the Securities Act), current or former partners (general or limited), members or managers of the Stockholder, as applicable, or to the estates of any such stockholders, affiliates, general or limited partners, members or managers, or to another corporation, partnership, limited liability company or other business entity that controls, is controlled by or is under common control with the Stockholder, (iii) if the Stockholder is a trust, to any beneficiary of the Stockholder or the estate of any such beneficiary, (iv) if the Stockholder holds Company Options, exercise a Company Option to purchase shares of Company Capital Stock, solely to the extent such options would otherwise expire prior to the Effective Time, or (v) for the net settlement of Stockholder’s Company Options (to pay the exercise price thereof and any tax withholding obligations),provided that, in each such case, the Subject Securities (taking in account any net exercise or shares withheld to settle tax obligations) shall continue to be subject to the restrictions on transfer set forth in this Agreement;provided,further that, with respect to clauses (i) through (iii), the transferee agrees in writing to be bound by the terms and conditions of this Agreement and either the Stockholder or the transferee provides Parent with a copy of such agreement promptly prior to the consummation of any such Transfer.

1.3.Documentation and Information. The Stockholder shall permit and hereby authorizes Parent and the Company to publish and disclose in all documents and schedules filed with the SEC, and any press release or other disclosure document that Parent or the Company reasonably determines to be necessary in connection with the Merger and any of the Contemplated Transactions, a copy of this Agreement, the Stockholder’s identity and ownership of the Subject Securities and the nature of the Stockholder’s commitments and obligations under this Agreement. The Company is an intended third-party beneficiary of this Section 1.3.

1.4.Irrevocable Proxy.The Stockholder hereby revokes (or agrees to cause to be revoked) any proxies that the Stockholder has heretofore granted with respect to the Subject Shares. The Stockholder hereby irrevocably appoints Parent, and the Chief Executive Officer, Chief Financial Officer and General Counsel of Parent, asattorney-in-fact and proxy, for and on behalf of the Stockholder, for and in the name, place and stead of the Stockholder, to: (a) attend any and all meetings of the Company Stockholders held for matters addressed in Section 1.1, (b) vote, express consent or dissent or issue instructions to the record holder to vote the Stockholder’s Subject Shares solely in furtherance of the provisions of Section 1.1 at any and all meetings of the Company Stockholders or in connection with any action sought to be taken by written consent of the Company Stockholders without a meeting and (c) grant or withhold, or issue instructions to the record holder to grant or withhold, solely in furtherance of the provisions of Section 1.1, all written consents with respect to the Subject Shares at any and all meetings of the Company Stockholders or in connection with any action sought to be taken by written consent of the Company Stockholders without a meeting. Parent agrees not to exercise the proxy granted herein for any purpose other than the purposes expressly described in this Agreement. The foregoing proxy shall be deemed to

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be a proxy coupled with an interest, is irrevocable (and as such shall survive and not be affected by the death, incapacity, mental illness or insanity of the Stockholder, as applicable) until the termination of this Agreement and shall not be terminated by operation of law or upon the occurrence of any other event other than the termination of this Agreement pursuant to Section 4.2. The Stockholder authorizes such attorney and proxy to substitute any other Person to act hereunder, to revoke any substitution and to file this proxy and any substitution or revocation with the Secretary of Parent. The Stockholder hereby affirms that the proxy set forth in this Section 1.4 is given in connection with and granted in consideration of and as an inducement to Parent and Merger Sub to enter into the Merger Agreement and that such proxy is given to secure the obligations of the Stockholder under Section 1.1. The proxy set forth in this Section 1.4 is executed and intended to be irrevocable, subject, however, to its automatic termination upon the termination of this Agreement pursuant to Section 4.2. With respect to any Subject Shares that are owned beneficially by the Stockholder but are not held of record by the Stockholder (other than shares beneficially owned by the Stockholder that are held in the name of a bank, broker or nominee), the Stockholder shall take all action necessary to cause the record holder of such Subject Shares to grant the irrevocable proxy and take all other actions provided for in this Section 1.4 with respect to such Subject Shares.

1.5.No Solicitation of Transactions. Stockholder represents and warrants that he, she or it has read Section 4.4 of the Merger Agreement and, subject to the provisions of Section 4.15 hereof, Stockholder shall not, directly or indirectly, intentionally take any action that the Company is prohibited from taking pursuant to Section 4.4 of the Merger Agreement.

1.6.No Exercise of Appraisal Rights; Waivers. Stockholder hereby irrevocably and unconditionally (a) waives, and agrees to cause to be waived and to prevent the exercise of, any rights of appraisal, any dissenters’ rights and any similar rights (including any notice requirements related thereto) relating to the Merger that Stockholder may have by virtue of, or with respect to, any Subject Shares (including all rights under Section 262 of the DGCL) and (b) agrees that the Stockholder will not bring, commence, institute, maintain, prosecute or voluntarily aid or participate in any action, claim, suit or cause of action, in law or in equity, in any court or before any Governmental Authority, which (i) challenges the validity of or seeks to enjoin the operation of any provision of this Agreement or (ii) alleges that the execution and delivery of this Agreement by the Stockholder, or the approval of the Merger Agreement by the Company Board, breaches any fiduciary duty of the Company Board or any member thereof;provided, that the Stockholder may defend against, contest or settle any such action, claim, suit or cause of action brought against the Stockholder that relates solely to the Stockholder’s capacity as a director, officer or securityholder of the Company.

1.7.No Ownership Interest. Nothing contained in this Agreement will be deemed to vest in Parent any direct or indirect ownership or incidents of ownership of or with respect to the Subject Securities. All rights, ownership and economic benefits of and relating to the Subject Securities will remain and belong to the Stockholder, and Parent will have no authority to manage, direct, superintend, restrict, regulate, govern or administer any of the policies or operations of the Company or exercise any power or authority to direct Stockholder in the voting of any of the Subject Securities, except as otherwise expressly provided herein with respect to the Subject Securities and except as otherwise expressly provided in the Merger Agreement.

ARTICLE II

REPRESENTATIONS AND WARRANTIES OF THE STOCKHOLDER

The Stockholder represents and warrants to Parent as of the date hereof that:

2.1.Authorization; Binding Agreement. The Stockholder, if not a natural person, is duly incorporated or organized, as applicable, validly existing and in good standing under the laws of its jurisdiction of incorporation or organization. The Stockholder has full legal capacity and power, right and authority to execute and deliver this Agreement and to perform the Stockholder’s obligations hereunder and to consummate the transactions contemplated hereby. This Agreement has been duly and validly executed and delivered by the Stockholder, and constitutes a legal, valid and binding obligation of the Stockholder enforceable against the Stockholder in accordance with its terms, subject to the Enforceability Exceptions.

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2.2.Ownership of Subject Securities; Total Shares. The Stockholder is the record or beneficial owner of the Subject Securities and has good and marketable title to the Subject Securities free and clear of any Encumbrance (including any restriction on the right to vote or otherwise transfer the Subject Securities), except (a) as provided hereunder, (b) pursuant to any applicable restrictions on transfer under the Securities Act, (c) subject to any risk of forfeiture with respect to any shares of Company Common Stock granted to the Stockholder under an employee benefit plan of the Company and (d) as provided in (i) the bylaws of the Company, (ii) that certain Amended and Restated Series A Preferred Stock Purchase Agreement, dated as of July 3, 2019, by and among the Company and the persons listed on Exhibit A thereto, (iii) that certain Amended and Restated Investors’ Rights Agreement, dated as of July 3, 2019, by and among the Company and the persons listed on Schedule A thereto, (iv) that certain Amended and Restated Right of First Refusal andCo-Sale Agreement dated as of July 3, 2019, by and among the Company and the stockholders named therein and (v) that certain Amended and Restated Voting Agreement, dated as of July 3, 2019, by and among the Company and the stockholders named therein (the “Voting Agreement”). The Subject Securities listed onSchedule A opposite the Stockholder’s name constitute all of the Company’s securities owned by the Stockholder as of the date hereof. Except pursuant to this Agreement, no Person has any contractual or other right or obligation to purchase or otherwise acquire any of the Stockholder’s Subject Securities. For purposes of this Agreement “Beneficial Ownership” shall be interpreted as defined in Rule13d-3 under the Exchange Act;providedthat for purposes of determining Beneficial Ownership, a Person shall be deemed to be the Beneficial Owner of any securities that may be acquired by such Person pursuant to any Contract or upon the exercise of conversion rights, exchange rights, warrants or options, or otherwise (irrespective of whether the right to acquire such securities is exercisable immediately or only after the passage of time, including the passage of time in excess of 60 days, the satisfaction of any conditions, the occurrence of any event or any combination of the foregoing).

2.3.Voting Power. The Stockholder has full power of disposition, full power to issue instructions with respect to the matters set forth herein and full power to agree to all of the matters set forth in this Agreement, in each case with respect to all of the Subject Securities and, with respect to all of the Subject Shares, full voting power. None of the Subject Securities are subject to any proxy, voting trust or other agreement or arrangement with respect to the voting of the Subject Securities, except as provided in the Voting Agreement and as provided hereunder.

2.4.Reliance. The Stockholder has had the opportunity to review the Merger Agreement and this Agreement with counsel of the Stockholder’s own choosing. The Stockholder has had an opportunity to review with its own tax advisors the tax consequences of the Merger and the Contemplated Transactions. The Stockholder understands that it must rely solely on its advisors and not on any statements or representations made by Parent, the Company or any of their respective agents or representatives with respect to the tax consequences of the Merger and the Contemplated Transactions. The Stockholder understands that such Stockholder (and not Parent, the Company or the Surviving Corporation) shall be responsible for such Stockholder’s tax liability that may arise as a result of the Merger or the Contemplated Transactions. The Stockholder understands and acknowledges that the Company, Parent and Merger Sub are entering into the Merger Agreement in reliance upon the Stockholder’s execution, delivery and performance of this Agreement.

2.5.Absence of Litigation. With respect to the Stockholder, as of the date hereof, there is no action, suit, investigation or proceeding pending against, or, to the knowledge of the Stockholder, threatened against, the Stockholder or any of the Stockholder’s properties or assets (including the Subject Securities) that could reasonably be expected to prevent, delay or impair the ability of the Stockholder to perform its obligations hereunder or to consummate the transactions contemplated hereby.

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2.6Non-Contravention. The execution and delivery of this Agreement by the Stockholder and the performance of the transactions contemplated by this Agreement by the Stockholder does not and will not violate, conflict with, or result in a breach of: (a) the organizational documents of such Stockholder, (b) any applicable Law or any injunction, judgment, order, decree, ruling, charge, or other restriction of any Governmental Authority to which the Stockholder is subject, or (c) any Contract to which the Subject Securities are subject, such that it could reasonably be expected to prevent, delay or impair the ability of the Stockholder to perform the Stockholder’s obligations hereunder or to consummate the transactions contemplated hereby.

2.7No Finders’ Fees. No investment banker, broker, finder or other intermediary is entitled to a fee or commission from Parent or the Company in respect of this Agreement based on upon any arrangement or agreement made by or on behalf of the Stockholder.

ARTICLE III

REPRESENTATIONS AND WARRANTIES OF PARENT

Parent represents and warrants to the Stockholder that:

3.1.Organization; Authorization. Parent is a corporation duly incorporated under the Laws of the State of Delaware. The consummation of the transactions contemplated hereby are within Parent’s corporate powers and have been duly authorized by all necessary corporate actions on the part of Parent. Parent has full power and authority to execute, deliver and perform this Agreement.

3.2.Binding Agreement. This Agreement has been duly authorized, executed and delivered by Parent and constitutes a valid and binding obligation of Parent enforceable against Parent in accordance with its terms, subject to the Enforceability Exceptions.

ARTICLE IV

MISCELLANEOUS

4.1.Notices. All notices, requests and other communications to either party hereunder shall be in writing (including electronic mail) and shall be given, (a) if to Parent, in accordance with the provisions of the Merger Agreement and (b) if to the Stockholder, to the Stockholder’s address or electronic mail address set forth on a signature page hereto, or to such other address or electronic mail address as the Stockholder may hereafter specify in writing to Parent.

4.2.Termination. This Agreement shall terminate automatically and become void and of no further force or effect, without any notice or other action by any Person, upon the earlier of (a) the termination of the Merger Agreement in accordance with its terms and (b) the Effective Time. Upon termination of this Agreement, neither party shall have any further obligations or liabilities under this Agreement;provided,however, that (i) nothing set forth in this Section 4.2 shall relieve either party from liability for any breach of this Agreement prior to termination hereof and (ii) the provisions of this Article IV shall survive any termination of this Agreement.

4.3.Confidentiality. Except to the extent required by applicable Law or regulation, the Stockholder shall hold anynon-public information regarding this Agreement, the Merger Agreement and the Merger in strict confidence and shall not divulge any such information to any third person until Parent has publicly disclosed its entry into the Merger Agreement and this Agreement;provided,however, that the Stockholder may disclose such information to its Affiliates, partners, members, stockholders, parents, subsidiaries, attorneys, accountants, consultants, trustees, beneficiaries and other representatives (provided that such Persons are subject to confidentiality obligations at least as restrictive as those contained herein). Neither the Stockholder nor any of its Affiliates (other than Parent, whose actions shall be governed by the Merger Agreement), shall issue or cause the publication of any press release or other public announcement with respect to this Agreement, the Merger, the Merger Agreement or the other transactions contemplated hereby or thereby without the prior written consent of the Company and Parent, except as may be required by applicable Law in which circumstance such announcing party shall make reasonable efforts to consult with the Company and Parent to the extent practicable. The Company is an intended third-party beneficiary of this Section 4.3.

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4.4.Amendments and Waivers. Any provision of this Agreement may be amended or waived if such amendment or waiver is in writing and is signed, in the case of an amendment, by each party to this Agreement, or in the case of a waiver, by the party against whom the waiver is to be effective. No failure or delay by either party in exercising any right, power or privilege hereunder shall operate as a waiver thereof nor shall any single or partial exercise thereof preclude any other or further exercise thereof or the exercise of any other right, power or privilege.

4.5.Binding Effect; Benefit; Assignment. The provisions of this Agreement shall be binding upon and shall inure to the benefit of the parties hereto and their respective successors and permitted assigns. Except as set forth in Section 1.3 and Section 4.3, no provision of this Agreement is intended to confer any rights, benefits, remedies, obligations or liabilities hereunder upon any person other than the parties hereto and their respective successors and assigns. Neither party may assign, delegate or otherwise transfer any of its rights or obligations under this Agreement without the consent of the other party hereto.

4.6.Governing Law; Venue. This Agreement shall be governed by and construed in accordance with the laws of the State of Delaware without regard to its rules of conflict of laws. Parent and the Stockholder hereby irrevocably and unconditionally consent to submit to the exclusive jurisdiction of the Delaware Court of Chancery, or if such court does not have proper jurisdiction, then the federal court of the United States located in the State of Delaware, and appellate courts therefrom (collectively, the “Delaware Courts”) for any litigation arising out of or relating to this Agreement and the transactions contemplated hereby (and agrees not to commence any litigation relating thereto except in such courts), waives any objection to the laying of venue of any such litigation in the Delaware Courts and agrees not to plead or claim in any Delaware Court that such litigation brought therein has been brought in any inconvenient forum. Each of the parties hereto agrees that service of process may be made on such party by prepaid certified mail with a proof of mailing receipt validated by the United States Postal Service constituting evidence of valid service. Service made pursuant to the foregoing shall have the same legal force and effect as if served upon such party personally within the State of Delaware. EACH OF THE PARTIES HERETO HEREBY IRREVOCABLY WAIVES ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR RELATED TO THIS AGREEMENT OR THE TRANSACTIONS CONTEMPLATED BY THIS AGREEMENT.

4.7.Counterparts. The parties may execute this Agreement in one or more counterparts, each of which will be deemed an original and all of which, when taken together, will be deemed to constitute one and the same agreement. Any signature page hereto delivered by facsimile machine or bye-mail (including in portable document format (pdf), electronic signature, or otherwise) shall be binding to the same extent as an original signature page, with regard to any agreement subject to the terms hereof or any amendment thereto and may be used in lieu of the original signatures for all purposes. Each party that delivers such a signature page agrees to later deliver an original counterpart to any other party that requests it.

4.8.Entire Agreement. This Agreement constitutes the entire agreement between the parties with respect to the subject matter of this Agreement and supersedes all prior agreements and understandings, both oral and written, between the parties with respect to its subject matter.

4.9.Severability. If any term, provision, covenant or restriction of this Agreement is held by a court of competent jurisdiction or other Governmental Body to be invalid, void or unenforceable, the remainder of the terms, provisions, covenants and restrictions of this Agreement shall remain in full force and effect and shall in no way be affected, impaired or invalidated so long as the economic or legal substance of the transactions contemplated hereby is not affected in any manner materially adverse to either party. Upon such a determination, the parties shall negotiate in good faith to modify this Agreement so as to effect the original intent of the parties as closely as possible in an acceptable manner in order that the transactions contemplated hereby be consummated as originally contemplated to the fullest extent possible.

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4.10.Specific Performance. The parties hereto agree that Parent would be irreparably damaged if for any reason the Stockholder fails to perform any of its obligations under this Agreement and that Parent may not have an adequate remedy at law for money damages in such event. Accordingly, Parent shall be entitled to specific performance and injunctive and other equitable relief to prevent breaches of this Agreement or to enforce specifically the performance of the terms and provisions hereof in any Delaware Court, in addition to any other remedy to which they are entitled at law or in equity, in each case without posting bond or other security, and without the necessity of proving actual damages.

4.11.Headings. The Section headings contained in this Agreement are inserted for convenience only and shall not affect in any way the meaning or interpretation of this Agreement.

4.12.No Presumption. This Agreement shall be construed without regard to any presumption or rule requiring construction or interpretation against the party drafting or causing any instrument to be drafted.

4.13.Further Assurances. Each of the parties hereto will execute and deliver, or cause to be executed and delivered, all further documents and instruments and use their respective reasonable best efforts to take, or cause to be taken, all actions and to do, or cause to be done, all things necessary under applicable Law to perform their respective obligations as expressly set forth under this Agreement.

4.14.Interpretation. Unless the context otherwise requires, as used in this Agreement: (a) “or” is not exclusive; (b) “including” and its variants mean “including, without limitation” and its variants; (c) words defined in the singular have the parallel meaning in the plural and vice versa; (d) words of one gender shall be construed to apply to each gender; and (e) the terms “Article,” “Section” and “Schedule” refer to the specified Article, Section or Schedule of or to this Agreement.

4.15.Capacity as Stockholder. The Stockholder signs this Agreement solely in the Stockholder’s capacity as a Company Stockholder, and not in the Stockholder’s capacity as a director, officer or employee of the Company or the Company Subsidiary or in the Stockholder’s capacity as a trustee or fiduciary of any employee benefit plan or trust. Notwithstanding anything herein to the contrary, nothing herein shall in any way restrict a director or officer of the Company in the exercise of his or her fiduciary duties as a director or officer of the Company or in his or her capacity as a trustee or fiduciary of any employee benefit plan or trust, or prevent or be construed to create any obligation on the part of any director or officer of the Company or any trustee or fiduciary of any employee benefit plan or trust from taking any action in his or her capacity as such director, officer, trustee or fiduciary.

4.16.Conversion or Exercise. Nothing contained in this Agreement shall require the Stockholder (or shall entitle any proxy of the Stockholder) to (a) convert, exercise or exchange any option, warrants or convertible securities in order to obtain any underlying Subject Shares or (b) vote, or execute any consent with respect to, any Subject Shares underlying such options, warrants or convertible securities that have not yet been issued as of the applicable record date for that vote or consent.

4.17. Representations and Warranties. The representations and warranties contained in this Agreement and in any certificate or other writing delivered pursuant hereto shall not survive the Closing or the termination of this Agreement.

4.18. No Agreement Until Executed. Irrespective of negotiations among the parties or the exchanging of drafts of this Agreement, this Agreement shall not constitute or be deemed to evidence a contract, agreement, arrangement or understanding between the parties hereto unless and until (a) the Merger Agreement is executed by all parties thereto, and (b) this Agreement is executed by all parties hereto.

(SIGNATURE PAGES FOLLOW)

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IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be duly executed as of the date first written above.

ADURO BIOTECH, INC.
By:
	Name:
	Title:

IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be duly executed as of the date first written above.

STOCKHOLDER

(Print Name of Stockholder)

(Signature)

(Name and Title of Signatory, if Signing on Behalf of an Entity)

Address for Notices:

Email:

Schedule A

Name of Stockholder	No. of Shares of Company Common Stock	No. of Shares of Company Preferred Stock	No. of Company Options
[●]	[●]	[●]	[●]