Document:

EX-10.12

 Exhibit 10.12 

IDEAYA BIOSCIENCES, INC. 

EMPLOYMENT AGREEMENT 

This Employment Agreement (the “Agreement”), entered into as of May 9, 2019, is between IDEAYA Biosciences, Inc.,
a Delaware corporation (the “Company”) and Paul A. Stone (“Executive” and, together with the Company, the “Parties”). This Agreement will become effective as of immediately
prior to the time the Company’s registration statement relating to the initial public offering of the Company’s common stock becomes effective (the “Effective Date”). This Agreement supersedes in its entirety that
certain offer letter between Executive and the Company dated as of February 13, 2018 (“Offer Letter”). 

WHEREAS, the Company desires to assure itself of the continued services of Executive by engaging Executive to perform services
as an employee of the Company under the terms hereof; 
 WHEREAS, Executive desires to provide continued services to the Company on
the terms herein provided; and 
 WHEREAS, the Parties desire to execute this Agreement to supersede the Offer Letter in its entirety
and reflect certain changes to Executive’s employment with the Company effective as of the Effective Date. 
 NOW, THEREFORE, in
consideration of the foregoing, and for other good and valuable consideration, including the respective covenants and agreements set forth below, the receipt and sufficiency of which are hereby acknowledged, the Parties hereto agree as follows: 

1.    Employment. 

(a)    General. The Company shall employ Executive upon the terms and conditions provided herein effective as
of the Effective Date. 
 (b)    Position and Duties. Effective as of the Effective Date, Executive:
(i) shall continue to serve as the Company’s Senior Vice President, General Counsel and Head of Operations, with responsibilities, duties, and authority usual and customary for such position, subject to direction by the Chief Executive
Officer of the Company (the “CEO”); (ii) shall continue to report directly to the CEO or the CEO’s designee; and (iii) agrees promptly and faithfully to comply with all present and future policies, requirements,
rules and regulations, and reasonable directions and requests, of the Company in connection with the Company’s business. At the Company’s request, Executive shall serve the Company and/or its subsidiaries and affiliates in such other
capacities in addition to the foregoing as the Company shall designate, provided that such additional capacities are consistent with Executive’s position as the Company’s Senior Vice President, General Counsel and Head of Operations. In
the event that Executive serves in any one or more of such additional capacities, Executive’s compensation shall not automatically be increased on account of such additional service. 

  
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 (c)    Principal Office. Executive shall continue to
perform services for the Company at the Company’s offices located in South San Francisco, California, or, with the Company’s consent, at any other place in connection with the fulfillment of Executive’s role with the Company;
provided, however, that the Company may from time to time require Executive to travel temporarily to other locations in connection with the Company’s business. 

(d)    Exclusivity. Except with the prior written approval of the CEO (which the CEO may grant or withhold in
his or her sole and absolute discretion), Executive shall devote Executive’s best efforts and full working time, attention, and energies to the business of the Company, except during any paid vacation or other excused absence periods.
Notwithstanding the foregoing, Executive may, without violating this Section 1(d), (i) as a passive investment, own publicly traded securities in such form or manner as will not require any services by Executive in the operation of the entities
in which such securities are owned; (ii) engage in charitable and civic activities; or (iii) engage in other personal passive investment activities, in each case, so long as such interests or activities do not materially interfere to the
extent such activities do not, individually or in the aggregate, interfere with or otherwise prevent the performance of Executive’s duties and responsibilities hereunder. Executive may also serve as a member of the board of directors or board
of advisors of another organization provided (i) such organization is not a competitor of the Company; (ii) Executive receives prior written approval from the Company’s CEO; and (iii) such activities do not individually or in the
aggregate interfere with the performance of Executive’s duties under this Agreement, violate the Company’s standards of conduct then in effect, or raise a conflict under the Company’s conflict of interest policies. For the avoidance
of doubt, the CEO has approved Executive’s continued service with those organizations set forth on Exhibit A, such approval to continue until the earlier to occur of (a) the CEO’s revocation of such approval in his or her
sole and absolute discretion, or (b) such time as such service interferes with the performance of Executive’s duties under this Agreement, violates the Company’s standards of conflict or raises a conflict under the Company’s
conflict of interest policies. 
 2.    Term. The period of Executive’s employment under this
Agreement shall commence on the Effective Date and shall continue until Executive’s employment with the Company is terminated pursuant to Section 5. The phrase “Term” as used in this Agreement shall refer to the
entire period of employment of Executive by the Company. 
 3.    Compensation and Related Matters. 

(a)    Annual Base Salary. During the Term, Executive shall receive a base salary at the rate of $304,500
per year (as may be increased from time to time, the “Annual Base Salary”), subject to withholdings and deductions, which shall be paid to Executive in accordance with the customary payroll practices and procedures of the
Company. Such Annual Base Salary shall be reviewed by the CEO, and, as applicable, the Board of Directors of the Company (the “Board”) and/or the Compensation Committee of the Board, not less than annually. 

(b)    Annual Bonus. Executive shall be eligible to receive a discretionary annual bonus based on
Executive’s achievement of performance objectives established by the Board, its Compensation Committee and/or the CEO, such bonus to be targeted at 25% of Executive’s Annual Base Salary (the “Annual Bonus”). Any
Annual Bonus approved by the Board, the Compensation Committee of the Board and/or the CEO shall be paid at the same time annual bonuses are paid to other executives of the Company generally, subject to Executive’s continuous employment through
the date of approval. 

  
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 (c)    Benefits. Executive shall be entitled to
participate in such employee and executive benefit plans and programs as the Company may from time to time offer to provide to its executives, subject to the terms and conditions of such plans. Notwithstanding the foregoing, nothing herein is
intended, or shall be construed, to require the Company to institute or continue any particular plan or benefit. 

(d)    Business Expenses. The Company shall reimburse Executive for all reasonable, documented, out-of-pocket travel and other business expenses incurred by Executive in the performance of Executive’s duties to the Company in accordance with the Company’s
applicable expense reimbursement policies and procedures as are in effect from time to time. 

(e)    Vacation. Executive will be entitled to paid vacation in accordance with the Company’s vacation
policy, as in effect from time to time. 
 4.    Equity Awards. Executive shall be eligible for any stock
options and other equity awards as may be determined by the Board or its Compensation Committee. Notwithstanding anything to the contrary in any agreement evidencing a stock option or other equity award, the unvested portion of such stock option or
other equity award shall not terminate upon the date of a Covered Termination but instead shall remain outstanding and eligible to vest in accordance with Section 6 hereof until the three month anniversary of such Covered Termination. 

5.    Termination.

(a)    At-Will Employment. The Company and Executive acknowledge that
Executive’s employment is and shall continue to be at-will, as defined under applicable law. This means that it is not for any specified period of time and can be terminated by Executive or by the Company
at any time, with or without advance notice, and for any or no particular reason or cause. It also means that Executive’s job duties, title, and responsibility and reporting level, work schedule, compensation, and benefits, as well as the
Company’s personnel policies and procedures, may be changed with prospective effect, with or without notice, at any time in the sole discretion of the Company (subject to any ramification such changes may have under Section 6 of this
Agreement). This “at-will” nature of Executive’s employment shall remain unchanged during Executive’s tenure as an employee and may not be changed, except in an express writing signed by
Executive and a duly-authorized officer of the Company. If Executive’s employment terminates for any lawful reason, Executive shall not be entitled to any payments, benefits, damages, award, or compensation other than as provided in this
Agreement. 
 (b)    Notice of Termination. During the Term, any termination of Executive’s employment
by the Company or by Executive (other than by reason of death) shall be communicated by written notice (a “Notice of Termination”) from one Party hereto to the other Party hereto (i) indicating the specific termination
provision in this Agreement relied upon, if any, (ii) setting forth in reasonable detail the facts and circumstances claimed to provide a basis for termination of Executive’s employment under the provision so indicated, and
(iii) specifying the Date of Termination (as defined below). The failure by the Company to set forth in the Notice of 

  
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Termination all of the facts and circumstances which contribute to a showing of Cause (as defined below) shall not waive any right of the Company hereunder or preclude the Company from asserting
such fact or circumstance in enforcing their rights hereunder. The failure by the Executive to set forth in the Notice of Termination all of the facts and circumstances which contribute to a showing of Good Reason (as defined below) shall not waive
any right of the Executive hereunder or preclude the Executive from asserting such fact or circumstance in enforcing their rights hereunder. 

(c)    Date of Termination. For purposes of this Agreement, “Date of Termination”
shall mean the date of the termination of Executive’s employment with the Company specified in a Notice of Termination. 

(d)    Deemed Resignation. Upon termination of Executive’s employment for any reason, Executive shall be
deemed to have resigned from all offices and board memberships, if any, then held with the Company or any of its affiliates, and, at the Company’s request, Executive shall execute such documents as are necessary or desirable to effectuate such
resignations. 
 6.    Consequences of Termination. 

(a)    Payments of Accrued Obligations upon all Terminations of Employment. Upon a termination of
Executive’s employment for any reason, Executive (or Executive’s estate or legal representative, as applicable) shall be entitled to receive, within 30 days after Executive’s Date of Termination (or such earlier date as may be
required by applicable law): (i) any portion of Executive’s Annual Base Salary earned through Executive’s Date of Termination not theretofore paid, (ii) any expenses owed to Executive under Section 3, (iii) any accrued but unused
paid time-off owed to Executive, (iv) any Annual Bonus earned but unpaid as of the Date of Termination, and (v) any amount arising from Executive’s participation in, or benefits under, any employee
benefit plans, programs, or arrangements under Section 3, which amounts shall be payable in accordance with the terms and conditions of such employee benefit plans, programs, or arrangements. Except as otherwise set forth in Sections 6(b) and
(c), the payments and benefits described in this Section 6(a) shall be the only payments and benefits payable in the event of Executive’s termination of employment for any reason. 

(b)    Severance Payments upon Covered Termination Outside a Change in Control Period. If, during the Term,
Executive experiences a Covered Termination outside a Change in Control Period (each as defined below), then in addition to the payments and benefits described in Section 6(a), the Company shall, subject to Executive’s delivery to the
Company of a waiver and release of claims agreement substantially in the form of Exhibit B hereto, with any such changes to applicable law as the Company deems necessary (the “Release”) that becomes effective and
irrevocable in accordance with Section 11(d), provide Executive with the following: 

(i)    The Company shall pay to Executive an amount equal to Executive’s Annual Base Salary
multiplied by 0.75. Such amount will be subject to applicable withholdings and payable in a single lump sum cash payment on the first regular payroll date following the date the Release becomes effective and irrevocable in accordance with
Section 11(d). 

  
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 (ii)    During the period commencing on the Date
of Termination and ending on the nine (9) month anniversary thereof or, if earlier, the date on which Executive becomes eligible for comparable replacement coverage under a subsequent employer’s group health plan (in any case, the
“Non-CIC COBRA Period”), subject to Executive’s valid election to continue healthcare coverage under Section 4980B of the Internal Revenue Code of 1986, as amended (the
“Code”) and the regulations thereunder, the Company shall, in its sole discretion, either (A) continue to provide to Executive and Executive’s dependents, at the Company’s sole expense, or (B) reimburse
Executive and Executive’s dependents for coverage under its group health plan (if any) at the same levels in effect on the Date of Termination; provided, however, that if (1) any plan pursuant to which such benefits are provided is
not, or ceases prior to the expiration of the continuation coverage period to be, exempt from the application of Section 409A under Treasury Regulation Section 1.409A-1(a)(5), (2) the Company is
otherwise unable to continue to cover Executive or Executive’s dependents under its group health plans, or (3) the Company cannot provide the benefit without violating applicable law (including, without limitation, Section 2716 of the
Public Health Service Act), then, in any such case, an amount equal to each remaining Company subsidy shall thereafter be paid to Executive in substantially equal monthly installments over the Non-CIC COBRA
Period (or remaining portion thereof). 
 (c)    Severance Payments upon Covered Termination During a Change in
Control Period. If, during the Term, Executive experiences a Covered Termination during a Change in Control Period, then, in addition to the payments and benefits described in Section 6(a), the Company shall, subject to Executive’s
delivery to the Company of the Release that becomes effective and irrevocable in accordance with Section 11(d), provide Executive with the following: 

(i)    The Company shall pay to Executive an amount equal to one (1) multiplied by the sum of
Executive’s Annual Base Salary and Executive’s target Annual Bonus. Such amount will be subject to applicable withholdings and payable in a single lump sum cash payment on the first regular payroll date following the date the Release
becomes effective and irrevocable in accordance with Section 11(d). 
 (ii)    During the
period commencing on the Date of Termination and ending on the twelve (12) month anniversary thereof or, if earlier, the date on which Executive becomes eligible for comparable replacement coverage under a subsequent employer’s group
health plan (in any case, the “CIC COBRA Period”), subject to Executive’s valid election to continue healthcare coverage under Section 4980B of the Code and the regulations thereunder, the Company shall, in its sole
discretion, either (A) continue to provide to Executive and Executive’s dependents, at the Company’s sole expense, or (B) reimburse Executive and Executive’s dependents for coverage under its group health plan (if any) at
the same levels in effect on the Date of Termination; provided, however, that if (1) any plan pursuant to which such benefits are provided is not, or ceases prior to the expiration of the continuation coverage period to be, exempt from
the application of Section 409A under Treasury Regulation Section 1.409A-1(a)(5), (2) the Company is otherwise unable to continue to cover Executive or Executive’s dependents under its group
health plans, or (3) the Company cannot provide the benefit without violating applicable law (including, without limitation, Section 2716 of the Public Health Service Act), then, in any such case, an amount equal to each remaining Company
subsidy shall thereafter be paid to Executive in substantially equal monthly installments over the CIC COBRA Period (or remaining portion thereof). 

  
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 (iii)    Cause any unvested equity awards,
including any stock options, restricted stock awards and any such awards subject to performance-based vesting, held by Executive as of the Date of Termination, to become fully vested and, if applicable, exercisable, and cause all restrictions and
rights of repurchase on such awards to lapse with respect to all of the shares of the Company’s Common Stock subject thereto. 

(d)    No Other Severance. The provisions of this Section 6 shall supersede in their entirety any
severance payment provisions in any severance plan, policy, program, or other arrangement maintained by the Company except as otherwise approved by the Board. 

(e)    No Requirement to Mitigate; Survival. Executive shall not be required to mitigate the amount of any
payment provided for under this Agreement by seeking other employment or in any other manner. Notwithstanding anything to the contrary in this Agreement, the termination of Executive’s employment shall not impair the rights or obligations of
any Party. 
 (f)    Definition of Cause. For purposes hereof, “Cause” shall mean
any one of the following: (i) Executive’s commission of any felony or any crime involving fraud, dishonesty or moral turpitude under the laws of the United States or any state thereof; (ii) Executive’s attempted commission of, or
participation in, a fraud or act of dishonesty against the Company; (iii) Executive’s intentional, material violation of any contract or agreement between Executive and the Company or of any statutory duty owed to the Company;
(iv) Executive’s unauthorized use or disclosure of the Company’s confidential information or trade secrets; or (v) Executive’s gross misconduct. The determination that a termination of Executive’s employment is either
for Cause or without Cause shall be made by the Board or its Compensation Committee, in each case, in its sole discretion. 

(g)    Definition of Change in Control. For purposes of this Agreement, “Change in
Control” shall mean any of the following types of transactions: (i) the direct or indirect sale or exchange in a single or series of related transactions by the stockholders of the Company of more than fifty percent (50%) of the
voting stock of the Company; (ii) a merger or consolidation in which the Company is a party; or (iii) the sale, exchange, or transfer of all or substantially all of the assets of the Company (each, a “Transaction”),
wherein the stockholders of the Company immediately before the Transaction do not retain immediately after the Transaction, in substantially the same proportions as their ownership of shares of the Company’s voting stock immediately before the
Transaction, direct or indirect beneficial ownership of more than fifty percent (50%) of the total combined voting power of the outstanding voting securities of the Company or the successor entity, or, in the case of a Transaction described in
(iii), the corporation or other entity to which the assets of the Company were transferred, as the case may be. Notwithstanding the foregoing, a transaction shall not constitute a Change in Control if: (i) its sole purpose is to change the
state of the Company’s incorporation; (ii) its sole purpose is to create a holding company that will be owned in substantially the same proportions by the persons who held the Company’s securities immediately before such transaction;
(iii) it constitutes the Company’s initial public offering of its securities; or (iv) it is a transaction effected primarily for the purpose of financing the Company with cash (as determined by the Board in its discretion).
Notwithstanding the foregoing, a “Change in Control” must also constitute a “change in control event,” as defined in Treasury Regulation §1.409A-3(i)(5). 

  
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 (h)    Definition of Change in Control Period. For
purposes hereof, “Change in Control Period” shall mean the period commencing three months prior to a Change in Control and ending 12 months after such Change in Control. 

(i)    Definition of Covered Termination. For purposes hereof, “Covered Termination”
shall mean the termination of Executive’s employment by the Company without Cause or by Executive for Good Reason, and shall not include a termination due to Executive’s death or disability. 

(j)    Definition of Good Reason. For purposes hereof, “Good Reason” shall mean that
Executive has complied in all material respects with the “Good Reason Process” (hereinafter defined) following the occurrence of any of the following events, without Executive’s prior written consent: (i) a material reduction of
Executive’s Annual Base Salary (unless pursuant to a salary reduction program applicable generally to the Company’s senior management employees); or (ii) relocation of Executive’s principal place of employment to a place that
increases Executive’s one-way commute by more than by more than seventy-five (75) miles as compared to Executive’s principal place of employment immediately prior to such relocation; or
(iii) a material reduction in Executive’s job title and primary duties, responsibilities and authorities, provided, however, that a change in job position (including a change in title) shall not be deemed a “material
reduction” in and of itself unless Executive’s new duties are materially reduced from the prior duties. 

(k)    Definition of Good Reason Process. For the purposes hereof, “Good Reason
Process” shall mean that (A) Executive has reasonably determined in good faith that a “Good Reason” condition has occurred; (B) Executive has notified the Company in writing of the first occurrence of the Good Reason
condition within 60 days of the first time the Executive becomes aware of the occurrence of such condition; (C) Executive has cooperated in good faith with the Company’s efforts, for a period not less than 30 days immediately following the
Company’s receipt of such notice (the “Cure Period”), to remedy the condition; (D) notwithstanding such efforts, the Good Reason condition continues to exist; and (E) Executive terminates Executive’s
employment with the Company within 30 days after the end of the Cure Period. If the Company cures the Good Reason condition during the Cure Period, Good Reason shall be deemed not to have occurred. 

7.    Assignment and Successors. The Company shall assign its rights and obligations under this Agreement to any
successor to all or substantially all of the business or the assets of the Company (by merger or otherwise). This Agreement shall be binding upon and inure to the benefit of the Company, Executive, and their respective successors, assigns,
personnel, and legal representatives, executors, administrators, heirs, distributees, devisees, and legatees, as applicable. None of Executive’s rights or obligations may be assigned or transferred by Executive, other than Executive’s
rights to payments hereunder, which may be transferred only by will, operation of law, or as otherwise provided herein. 

  
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 8.    Miscellaneous Provisions. 

(a)    Restrictive Covenant Agreements. Executive hereby affirms Executive’s obligations under that
certain Proprietary Information and Invention Assignment Agreement by and between Executive and the Company dated as of May 2, 2018 (the “Intellectual Property Assignment Agreement” and, together with any confidentiality
agreement between Executive and the Company, the “Restrictive Covenant Agreements”). The Restrictive Covenant Agreements shall survive the termination of this Agreement and Executive’s employment with the Company for the
applicable period(s) set forth therein. Notwithstanding the foregoing, in the event of any conflict between the terms of the Restrictive Covenant Agreements and the terms of this Agreement, the terms of this Agreement shall prevail. 

(b)    Non-Solicitation of Employees. For a period of one year
following Executive’s Date of Termination, Executive shall not, either directly or indirectly (i) solicit for employment by any individual, corporation, firm, or other business, any employees, consultants, independent contractors, or other
service providers of the Company or any of its affiliates, or (ii) solicit any employee or consultant of the Company or any of its affiliates to leave the employment or consulting of or cease providing services to the Company or any of its
affiliates; provided, however, that the foregoing clauses (i) and (ii) shall not apply to a general advertisement or solicitation (or any hiring pursuant to such advertisement or solicitation) that is not specifically targeted to
such employees or consultants. 
 (c)    Governing Law. This Agreement shall be governed, construed,
interpreted, and enforced in accordance with its express terms, and otherwise in accordance with the substantive laws of the State of California, without giving effect to any principles of conflicts of law, whether of the State of California or any
other jurisdiction, and where applicable, the laws of the United States, that would result in the application of the laws of any other jurisdiction. 

(d)    Validity. The invalidity or unenforceability of any provision or provisions of this Agreement shall
not affect the validity or enforceability of any other provision of this Agreement, which shall remain in full force and effect. 

(e)    Counterparts. This Agreement may be executed in several counterparts, each of which shall be deemed to
be an original, but all of which together will constitute one and the same Agreement. Signatures delivered by facsimile shall be deemed effective for all purposes. 

(f)    Entire Agreement. The terms of this Agreement, together with the Restrictive Covenant Agreements, are
intended by the Parties to be the final expression of their agreement with respect to the employment of Executive by the Company and supersede all prior understandings and agreements, whether written or oral, regarding Executive’s service to
the Company, including without limitation, the Offer Letter. The Parties further intend that this Agreement, together with the Restrictive Covenant Agreements, shall constitute the complete and exclusive statement of their terms and that no
extrinsic evidence whatsoever may be introduced in any judicial, administrative, or other legal proceeding to vary the terms of this Agreement or the Restrictive Covenant Agreements. Notwithstanding the foregoing, in the event of any conflict
between the terms of the Restrictive Covenant Agreements and the terms of this Agreement, the terms of this Agreement shall prevail. 

  
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 (g)    Amendments; Waivers. This Agreement may not be
modified, amended, or terminated except by an instrument in writing signed by Executive and a duly authorized representative of the Company. By an instrument in writing similarly executed, Executive or a duly authorized officer of the Company, as
applicable, may waive compliance by the other Party with any specifically identified provision of this Agreement that such other Party was or is obligated to comply with or perform; provided, however, that such waiver shall not operate
as a waiver of, or estoppel with respect to, any other or subsequent failure. No failure to exercise and no delay in exercising any right, remedy, or power hereunder shall preclude any other or further exercise of any other right, remedy, or power
provided herein or by law or in equity. 
 (h)    Dispute Resolution. To ensure the timely and economical
resolution of disputes that arise in connection with this Agreement, Executive and the Company agree that any and all controversies, claims and disputes arising out of or relating to this Agreement, including without limitation any alleged violation
of its terms, shall be resolved solely and exclusively by final and binding arbitration held in San Francisco, California through JAMS in conformity with California law and the then-existing JAMS employment arbitration rules, which can be found at
https://www.jamsadr.com/rules-employment-arbitration/. The arbitrator shall: (a) provide adequate discovery for the resolution of the dispute; and (b) issue a written arbitration decision, to include the arbitrator’s essential
findings and conclusions and a statement of the award. The arbitrator shall award the prevailing Party attorneys’ fees and expert fees, if any. Notwithstanding the foregoing, it is acknowledged that it will be impossible to measure in money the
damages that would be suffered if the Parties fail to comply with any of the obligations imposed on them under Section 8(a), and that in the event of any such failure, an aggrieved person will be irreparably damaged and will not have an
adequate remedy at law. Any such person shall, therefore, be entitled to seek injunctive relief, including specific performance, to enforce such obligations, and if any action shall be brought in equity to enforce any of the provisions of
Section 8(a), none of the Parties shall raise the defense, without a good faith basis for raising such defense, that there is an adequate remedy at law. Executive and the Company understand that by agreement to arbitrate any claim pursuant to
this Section 8(h), they will not have the right to have any claim decided by a jury or a court, but shall instead have any claim decided through arbitration. Executive and the Company waive any constitutional or other right to bring claims
covered by this Agreement other than in their individual capacities. Except as may be prohibited by applicable law, the foregoing waiver includes the ability to assert claims as a plaintiff or class member in any purported class or representative
proceeding. 
 (i)    Enforcement. If any provision of this Agreement is held to be illegal, invalid, or
unenforceable under present or future laws, such provision shall be fully severable; this Agreement shall be construed and enforced as if such illegal, invalid, or unenforceable provision had never comprised a portion of this Agreement; and the
remaining provisions of this Agreement shall remain in full force and effect and shall not be affected by the illegal, invalid, or unenforceable provision or by its severance from this Agreement. Furthermore, in lieu of such illegal, invalid, or
unenforceable provision there shall be added automatically as part of this Agreement a provision as similar in terms to such illegal, invalid, or unenforceable provision as may be possible and be legal, valid, and enforceable. 

(j)    Withholding. The Company shall be entitled to withhold from any amounts payable under this Agreement
any federal, state, local, or foreign withholding or other taxes or charges which the Company is required to withhold. The Company shall be entitled to rely on an opinion of counsel if any questions as to the amount or requirement of withholding
shall arise. 

  
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 (k)    Whistleblower Protections and Trade Secrets.
Notwithstanding anything to the contrary contained herein, nothing in this Agreement prohibits Executive from reporting possible violations of federal law or regulation to any United States governmental agency or entity in accordance with the
provisions of and rules promulgated under Section 21F of the Securities Exchange Act of 1934 or Section 806 of the Sarbanes-Oxley Act of 2002, or any other whistleblower protection provisions of state or federal law or regulation
(including the right to receive an award for information provided to any such government agencies). Furthermore, in accordance with 18 U.S.C. § 1833, notwithstanding anything to the contrary in this Agreement: (i) Executive shall not be in
breach of this Agreement, and shall not be held criminally or civilly liable under any federal or state trade secret law (x) for the disclosure of a trade secret that is made in confidence to a federal, state, or local government official or to
an attorney solely for the purpose of reporting or investigating a suspected violation of law, or (y) for the disclosure of a trade secret that is made in a complaint or other document filed in a lawsuit or other proceeding, if such filing is
made under seal; and (ii) if Executive files a lawsuit for retaliation by the Company for reporting a suspected violation of law, Executive may disclose the trade secret to Executive’s attorney, and may use the trade secret information in
the court proceeding, if Executive files any document containing the trade secret under seal, and does not disclose the trade secret, except pursuant to court order. 

9.    Prior Employment. Executive represents and warrants that Executive’s acceptance of employment with
the Company has not breached, and the performance of Executive’s duties hereunder will not breach, any duty owed by Executive to any prior employer or other person. Executive further represents and warrants to the Company that (a) the
performance of Executive’s obligations hereunder will not violate any agreement between Executive and any other person, firm, organization, or other entity; (b) Executive is not bound by the terms of any agreement with any previous
employer or other party to refrain from competing, directly or indirectly, with the business of such previous employer or other party that would be violated by Executive entering into this Agreement and/or providing services to the Company pursuant
to the terms of this Agreement; and (c) Executive’s performance of Executive’s duties under this Agreement will not require Executive to, and Executive shall not, rely on in the performance of Executive’s duties or disclose to
the Company or any other person or entity or induce the Company in any way to use or rely on any trade secret or other confidential or proprietary information or material belonging to any previous employer of Executive. 

10.    Golden Parachute Excise Tax. 

(a)    Best Pay. Any provision of this Agreement to the contrary notwithstanding, if any payment or benefit
Executive would receive from the Company pursuant to this Agreement or otherwise (“Payment”) would (i) constitute a “parachute payment” within the meaning of Section 280G of the Code and (ii) but for
this sentence, be subject to the excise tax imposed by Section 4999 of the Code (the “Excise Tax”), then such Payment will be equal to the Reduced Amount (as defined below). The “Reduced Amount”
will be either (A) the largest portion of the Payment that would result in no portion of the Payment (after reduction) being subject to the Excise Tax or (B) the entire Payment, whichever amount after taking into account all applicable
federal, 

  
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state, and local employment taxes, income taxes, and the Excise Tax (all computed at the highest applicable marginal rate, net of the maximum reduction in federal income taxes which could be
obtained from a deduction of such state and local taxes), results in Executive’ s receipt, on an after-tax basis, of the greater economic benefit notwithstanding that all or some portion of the Payment
may be subject to the Excise Tax. If a reduction in a Payment is required pursuant to the preceding sentence and the Reduced Amount is determined pursuant to clause (A) of the preceding sentence, the reduction shall occur in the manner (the
“Reduction Method”) that results in the greatest economic benefit for Executive. If more than one method of reduction will result in the same economic benefit, the items so reduced will be reduced pro rata (the
“Pro Rata Reduction Method”). Notwithstanding the foregoing, if the Reduction Method or the Pro Rata Reduction Method would result in any portion of the Payment being subject to taxes pursuant to Section 409A (as defined
below) that would not otherwise be subject to taxes pursuant to Section 409A, then the Reduction Method and/or the Pro Rata Reduction Method, as the case may be, shall be modified so as to avoid the imposition of taxes pursuant to
Section 409A as follows: (1) as a first priority, the modification shall preserve to the greatest extent possible, the greatest economic benefit for Executive as determined on an after-tax basis;
(2) as a second priority, Payments that are contingent on future events (e.g., being terminated without cause), shall be reduced (or eliminated) before Payments that are not contingent on future events; and (3) as a third priority,
Payments that are “deferred compensation” within the meaning of Section 409A shall be reduced (or eliminated) before Payments that are not deferred compensation within the meaning of Section 409A. 

(b)    Accounting Firm. The accounting firm engaged by the Company for general tax purposes as of the day
prior to the Change in Control will perform the calculations set forth in Section 10(a). If the firm so engaged by the Company is serving as the accountant or auditor for the acquiring company, the Company will appoint a nationally recognized
accounting firm to make the determinations required hereunder. The Company will bear all expenses with respect to the determinations by such firm required to be made hereunder. The accounting firm engaged to make the determinations hereunder will
provide its calculations, together with detailed supporting documentation, to the Company within 30 days before the consummation of a Change in Control (if requested at that time by the Company) or such other time as requested by the Company. If the
accounting firm determines that no Excise Tax is payable with respect to a Payment, either before or after the application of the Reduced Amount, it will furnish the Company with documentation reasonably acceptable to the Company that no Excise Tax
will be imposed with respect to such Payment. Any good faith determinations of the accounting firm made hereunder will be final, binding and conclusive upon the Company and Executive. 

11.    Section 409A. 

(a)    General. The intent of the Parties is that the payments and benefits under this Agreement comply with
or be exempt from Section 409A of the Code and the Department of Treasury regulations and other interpretive guidance issued thereunder, including without limitation any such regulations or other guidance that may be issued after the Effective
Date, (“Section 409A”) and, accordingly, to the maximum extent permitted, this Agreement shall be interpreted to be in compliance therewith. Notwithstanding any provision of this Agreement to
the contrary, if the Company determines that any compensation or benefits payable under this Agreement may be subject to Section 409A, the Company shall work in good faith with Executive to adopt such amendments to this Agreement or adopt other
policies and procedures (including 

  
 11 

 
amendments, policies and procedures with retroactive effect), or take any other actions, that the Company determines are necessary or appropriate to avoid the imposition of taxes under
Section 409A, including, without limitation, actions intended to (i) exempt the compensation and benefits payable under this Agreement from Section 409A, and/or (ii) comply with the requirements of Section 409A; however,
this Section 11(a) shall not create an obligation on the part of the Company to adopt any such amendment, policy or procedure or take any such other action, nor shall the Company (A) have any liability for failing to do so, or
(B) incur or indemnify Executive for any taxes, interest or other liabilities arising under or by operation of Section 409A. 

(b)    Separation from Service. Notwithstanding any provision to the contrary in this Agreement:
(i) no amount that constitutes “deferred compensation” under Section 409A shall be payable pursuant to Section 6 unless the termination of Executive’s employment constitutes a “separation from service” within
the meaning of Section 1.409A-1(h) of the Department of Treasury Regulations (“Separation from Service”); (ii) for purposes of Section 409A, Executive’s right to receive
installment payments shall be treated as a right to receive a series of separate and distinct payments; and (iii) to the extent that any reimbursement of expenses or in-kind benefits constitutes
“deferred compensation” under Section 409A, such reimbursement or benefit shall be provided no later than December 31st of the year following the year in which the expense was
incurred. The amount of expenses reimbursed in one year shall not affect the amount eligible for reimbursement in any subsequent year. The amount of any in-kind benefits provided in one year shall not affect
the amount of in-kind benefits provided in any other year. 

(c)    Specified Employee. Notwithstanding anything in this Agreement to the contrary, if Executive is deemed
by the Company at the time of Executive’s Separation from Service to be a “specified employee” for purposes of Section 409A, to the extent delayed commencement of any portion of the benefits to which Executive is entitled under
this Agreement is required in order to avoid a prohibited distribution under Section 409A, such portion of Executive’s benefits shall not be provided to Executive prior to the earlier of (i) the expiration of the six-month period measured from the date of Executive’s Separation from Service with the Company or (ii) the date of Executive’s death. Upon the first business day following the expiration of the
applicable Section 409A period, all payments deferred pursuant to the preceding sentence shall be paid in a lump sum to Executive (or Executive’s estate or beneficiaries), and any remaining payments due to Executive under this Agreement
shall be paid as otherwise provided herein. 
 (d)    Release. Notwithstanding anything to the contrary in
this Agreement, to the extent that any payments due under this Agreement as a result of Executive’s termination of employment are subject to Executive’s execution and delivery of the Release, (i) if Executive fails to execute the
Release on or prior to the Release Expiration Date (as defined below) or timely revokes Executive’s acceptance of the Release thereafter, Executive shall not be entitled to any payments or benefits otherwise conditioned on the Release, and
(ii) in any case where Executive’s Date of Termination and the Release Expiration Date fall in two separate taxable years, any payments required to be made to Executive that are conditioned on the Release and are treated as nonqualified
deferred compensation for purposes of Section 409A shall be made in the later taxable year. For purposes of this Section 11(d), “Release Expiration Date” shall mean the date that is 21 days following the date upon
which the Company timely delivers the Release to Executive, or, in the event that Executive’s termination of employment is “in connection with an exit incentive or other employment termination program” (as such phrase is defined in
the Age 

  
 12 

 
Discrimination in Employment Act of 1967), the date that is 45 days following such delivery date. To the extent that any payments of nonqualified deferred compensation (within the meaning
of Section 409A) due under this Agreement as a result of Executive’s termination of employment are delayed pursuant to this Section 11(d), such amounts shall be paid in a lump sum on the first payroll date following the date that
Executive executes and does not revoke the Release (and the applicable revocation period has expired) or, in the case of any payments subject to Section 11(d)(ii), on the first payroll period to occur in the subsequent taxable year, if later.

 12.    Employee Acknowledgement. Executive acknowledges that Executive has read and understands this
Agreement, is fully aware of its legal effect, has not acted in reliance upon any representations or promises made by the Company other than those contained in writing herein, and has entered into this Agreement freely based on Executive’s own
judgment. 
 [Signature Page Follows] 

  
 13 

 The Parties have executed this Agreement as of the Effective Date. 

 

			
	IDEAYA BIOSCIENCES, INC.

 
			
		
	By: 	 	/s/ Yujiro Hata

 
			
		
	Name:	 	Yujiro Hata

 
			
		
	Title:	 	CEO, Yujiro Hata

  

			
	EXECUTIVE
		
	By: 	 	/s/ Paul A. Stone

 
			
		
	Name:	 	Paul A. Stone

 
			
		
	Address:	 	
	
	[PRIVATE ADDRESS]
	
	 
	
	 

 EXHIBIT A 

PERMITTED OUTSIDE ACTIVITIES 
  

	 	1.	 5AM Venture Management LLC (of Counsel) 

 

	 	2.	 Scientist.com dba AssayDepot, Inc. (Director) 

 

	 	3.	 Wildcat Technologies, Inc. (Observer) 

  
 2 

 EXHIBIT B 

RELEASE OF CLAIMS 

This Release of Claims (“Release”) is entered into as of _________________, 20__, between [__________]
(“Executive”) and IDEAYA Biosciences, Inc., a Delaware corporation (the “Company” and, together with Executive, the “Parties”), effective eight days after Executive’s
signature hereto (the “Effective Date”), unless Executive revokes his acceptance of this Release as provided in Paragraph 1(c), below. 

1.    Executive’s Release of the Company. Executive understands that by agreeing to this Release, Executive is
agreeing not to sue, or otherwise file any claim against, the Company or any of its employees or other agents for any reason whatsoever based on anything that has occurred as of the date Executive signs this Release. 

(a)    On behalf of Executive and Executive’s heirs and assigns, Executive hereby releases and forever
discharges the “Releasees” hereunder, consisting of the Company, and each of its owners, affiliates, divisions, predecessors, successors, assigns, agents, directors, officers, partners, employees, and insurers, and all persons
acting by, through, under or in concert with them, or any of them, of and from any and all manner of action or actions, cause or causes of action, in law or in equity, suits, debts, liens, contracts, agreements, promises, liability, claims, demands,
damages, loss, cost or expense, of any nature whatsoever, known or unknown, fixed or contingent (hereinafter called “Claims”), which Executive now has or may hereafter have against the Releasees, or any of them, by reason of any
matter, cause, or thing whatsoever from the beginning of time to the date hereof, including, without limiting the generality of the foregoing, any Claims arising out of, based upon, or relating to Executive’s hire, employment, remuneration or
resignation by the Releasees, or any of them, including Claims arising under federal, state, or local laws relating to employment, Claims of any kind that may be brought in any court or administrative agency, any Claims arising under the Age
Discrimination in Employment Act (“ADEA”), 29 U.S.C. § 621, et seq.; Title VII of the Civil Rights Act of 1964, as amended by the Civil Rights Act of 1991, 42 U.S.C. § 2000 et seq.; the Equal Pay Act, 29 U.S.C.
§ 206(d); the Civil Rights Act of 1866, 42 U.S.C. § 1981; the Family and Medical Leave Act of 1993, 29 U.S.C. § 2601 et seq.; the Americans with Disabilities Act of 1990, 42 U.S.C. § 12101 et seq.; the False Claims Act , 31
U.S.C. § 3729 et seq.; the Employee Retirement Income Security Act, 29 U.S.C. § 1001 et seq.; the Worker Adjustment and Retraining Notification Act, 29 U.S.C. § 2101 et seq. the Fair Labor Standards Act, 29 U.S.C. § 215 et
seq., the Sarbanes-Oxley Act of 2002; the California Labor Code; the employment and civil rights laws of California; Claims for breach of contract; Claims arising in tort, including, without limitation, Claims of wrongful dismissal or discharge,
discrimination, harassment, retaliation, fraud, misrepresentation, defamation, libel, infliction of emotional distress, violation of public policy, and/or breach of the implied covenant of good faith and fair dealing; and Claims for damages or other
remedies of any sort, including, without limitation, compensatory damages, punitive damages, injunctive relief and attorney’s fees. 

  
 3 

 (b)    Notwithstanding the generality of the foregoing,
Executive does not release the following claims: 
 (i)    Claims for unemployment compensation or any
state disability insurance benefits pursuant to the terms of applicable state law; 
 (ii)    Claims for
workers’ compensation insurance benefits under the terms of any worker’s compensation insurance policy or fund of the Company; 

(iii)    Claims to continued participation in certain of the Company’s group benefit plans pursuant
to the terms and conditions of COBRA; 
 (iv)    Claims to any benefit entitlements vested as the date
of Executive’s employment termination, pursuant to written terms of any Company employee benefit plan; 

(v)    Claims for indemnification under any indemnification agreement with the Company, the Company’s
Bylaws, California Labor Code Section 2802 or any other applicable law; and 

(vi)    Executive’s right to bring to the attention of the Equal Employment Opportunity Commission
claims of discrimination; provided, however, that Executive does release Executive’s right to secure any damages for alleged discriminatory treatment. 

(c)    In accordance with the Older Workers Benefit Protection Act of 1990, Executive has been advised of
the following: 
 (i)    Executive has the right to consult with an attorney before signing this
Release; 
 (ii)    Executive has been given at least
[twenty-one (21)    OR    forty-five (45)] days to consider this Release; 

(iii)    Executive has seven (7) days after signing this Release to revoke it, and Executive will not
receive the severance benefits provided by that certain Employment Agreement between the Parties (the “Employment Agreement”) unless and until such seven (7) day period has expired. If Executive wishes to revoke this Release,
Executive must deliver notice of Executive’s revocation in writing, no later than 5:00 p.m. on the 7th day following Executive’s execution of this Release to [_________]. 

  
 4 

 (d)    EXECUTIVE ACKNOWLEDGES THAT EXECUTIVE HAS BEEN
ADVISED OF AND IS FAMILIAR WITH THE PROVISIONS OF CALIFORNIA CIVIL CODE SECTION 1542, WHICH PROVIDES AS FOLLOWS: 
 “A GENERAL
RELEASE DOES NOT EXTEND TO CLAIMS THAT THE CREDITOR OR RELEASING PARTY DOES NOT KNOW OR SUSPECT TO EXIST IN HIS OR HER FAVOR AT THE TIME OF EXECUTING THE RELEASE AND THAT, IF KNOWN BY HIM OR HER, WOULD HAVE MATERIALLY AFFECTED HIS OR HER SETTLEMENT
WITH THE DEBTOR OR RELEASED PARTY.” 
 BEING AWARE OF SAID CODE SECTION, EXECUTIVE HEREBY EXPRESSLY WAIVES ANY RIGHTS EXECUTIVE MAY
HAVE THEREUNDER, AS WELL AS UNDER ANY OTHER STATUTES OR COMMON LAW PRINCIPLES OF SIMILAR EFFECT. 
 2.    Executive
Representations. Executive represents and warrants that: 
 (a)    Executive has returned to the
Company all Company property in Executive’s possession; 
 (b)    Executive is not owed wages,
commissions, bonuses or other compensation, other than wages through the date of the termination of Executive’s employment and any accrued, unused vacation earned through such date, and any payments that become due under the Change of Control
Agreement; 
 (c)    During the course of Executive’s employment Executive did not sustain any
injuries for which Executive might be entitled to compensation pursuant to worker’s compensation law or Executive has disclosed any injuries of which Executive is currently, reasonably aware for which Executive might be entitled to compensation
pursuant to worker’s compensation law; and 
 (d)    Executive has not initiated any adversarial
proceedings of any kind against the Company or against any other person or entity released herein, nor will Executive do so in the future, except as specifically allowed by this Release. 

3.    Severability. The provisions of this Release are severable. If any provision is held to be invalid or
unenforceable, it shall not affect the validity or enforceability of any other provision. 
 4.    Choice of Law.
This Release shall in all respects be governed and construed in accordance with the laws of the State of California, including all matters of construction, validity and performance, without regard to conflicts of law principles. 

5.    Integration Clause. This Release and the Employment Agreement contain the Parties’ entire agreement with
regard to the separation of Executive’s employment, and supersede and replace any prior agreements as to those matters, whether oral or written. This Release may not be changed or modified, in whole or in part, except by an instrument in
writing signed by Executive and a duly authorized officer or director of the Company. 

  
 5 

 6.    Execution in Counterparts. This Release may be executed in
counterparts with the same force and effectiveness as though executed in a single document. Facsimile signatures shall have the same force and effectiveness as original signatures. 

7.    Intent to be Bound. The Parties have carefully read this Release in its entirety; fully understand and agree
to its terms and provisions; and intend and agree that it is final and binding on all Parties. 

  
 6 

 IN WITNESS WHEREOF, and intending to be legally bound, the Parties have executed the
foregoing on the dates shown below. 
  

					
	EXECUTIVE	 		 	IDEAYA BIOSCIENCES, INC.
			
	  
	 		 	  

			
		 		 	By:
			
		 		 	Title:

  

									
					
	Date:	 	 	 		 	Date:	 	 

  
 7Exhibit 10.1

 

2013
Arconic Stock Incentive Plan, as Amended and Restated 

 

SECTION 1. PURPOSE. The purpose of the 2013 Arconic Stock
Incentive Plan is to encourage selected Directors and Employees to acquire a proprietary interest in the long-term growth and financial
success of the Company and to further link the interests of such individuals to the long-term interests of shareholders.

 

SECTION 2. DEFINITIONS. As used in the Plan, the following
terms have the meanings set forth below:

 

“Affiliate” shall have the meaning
set forth in Rule 12b-2 under Section 12 of the U.S. Securities Exchange Act of 1934, as amended.

 

“Award” means any Option, Stock Appreciation
Right, Restricted Share Award, Restricted Share Unit, or any other right, interest, or option relating to Shares or other property
granted pursuant to the provisions of the Plan.

 

“Award Agreement” means any written
or electronic agreement, contract, or other instrument or document evidencing any Award granted by the Committee hereunder, which
may, but need not, be executed or acknowledged by both the Company and the Participant.

 

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

 

“Change in Control” means the occurrence
of an event set forth in any one of the following paragraphs:

 

		(a)	any individual, entity or group (within the meaning of Section 13(d)(3) or 14(d)(2) of the U.S. Securities Exchange Act
of 1934, as amended) (a “Person”) becomes the beneficial owner (within the meaning of Rule 13d-3 promulgated
under the U.S. Securities Exchange Act of 1934, as amended) of 30% or more of either (A) the then-outstanding Shares (the
 “Outstanding Company Common Stock”) or (B) the combined voting power of the then-outstanding voting
securities of the Company entitled to vote generally in the election of directors (the “Outstanding Company Voting
Securities”); provided, however, that, for purposes hereof, the following acquisitions shall not constitute
a Change in Control: (i) any acquisition directly from the Company, (ii) any acquisition by the Company, (iii) any
acquisition by any employee benefit plan (or related trust) sponsored or maintained by the Company or any of its Affiliates or
(iv) any acquisition pursuant to a transaction that complies with clauses (i), (ii) and (iii) of paragraph (c) of this definition;

 

		(b)	individuals who, as of May 24, 2017, constituted the Board (the “Incumbent Board”) cease for any
reason to constitute at least a majority of the Board; provided, however, that any individual becoming a director subsequent
to May 24, 2017 whose election, or nomination for election by the Company’s shareholders, was approved by a vote of at least
two-thirds of the directors then comprising the Incumbent Board shall be considered as though such individual was a member of the
Incumbent Board; but, provided, further, that any such individual whose initial assumption of office occurs as a result of an actual
or threatened election contest with respect to the election or removal of directors or other actual or threatened solicitation
of proxies or consents by or on behalf of a Person other than the Board shall not be considered a member of the Incumbent Board
unless and until such individual is elected to the Board at an annual meeting of the Company occurring after the date such individual
initially assumed office, so long as such election occurs pursuant to a nomination approved by a vote of at least two-thirds of
the directors then comprising the Incumbent Board, which nomination is not made pursuant to a Company contractual obligation;

 

    	1

     

    

 

		(c)	consummation of a reorganization, merger, statutory share exchange or consolidation or similar transaction involving the Company
or any of its Subsidiaries, a sale or other disposition of all or substantially all of the assets of the Company, or the acquisition
of assets or stock of another entity by the Company or any of its Subsidiaries (each, a “Business Combination”),
in each case unless, following such Business Combination, (i) all or substantially all of the individuals and entities that
were the beneficial owners of the Outstanding Company Common Stock and the Outstanding Company Voting Securities immediately prior
to such Business Combination beneficially own, directly or indirectly, 55% or more of the then-outstanding shares of common stock
(or, for a non-corporate entity, equivalent securities) and the combined voting power of the then-outstanding voting securities
entitled to vote generally in the election of directors (or, for a non-corporate entity, equivalent governing body), as the case
may be, of the entity resulting from such Business Combination (including, without limitation, an entity that, as a result of such
transaction, owns the Company or all or substantially all of the Company’s assets either directly or through one or more
Subsidiaries) in substantially the same proportions as their ownership immediately prior to such Business Combination of the Outstanding
Company Common Stock and the Outstanding Company Voting Securities, as the case may be, (ii) no Person (excluding any corporation
resulting from such Business Combination or any employee benefit plan (or related trust) of the Company or such corporation resulting
from such Business Combination) beneficially owns, directly or indirectly, 30% or more of, respectively, the then-outstanding shares
of common stock (or, for a non-corporate entity, equivalent securities) of the entity resulting from such Business Combination
or the combined voting power of the then-outstanding voting securities of such entity entitled to vote generally in the election
of directors (or, for a non-corporate entity, equivalent securities), except to the extent that such ownership existed prior to
the Business Combination, and (iii) at least a majority of the members of the board of directors (or, for a non-corporate
entity, equivalent governing body) of the entity resulting from such Business Combination were members of the Incumbent Board at
the time of the execution of the initial agreement or of the action of the Board providing for such Business Combination; or

 

		(d)	the shareholders of the Company approve a plan of complete liquidation or dissolution of the Company.

 

“Code” means the U.S. Internal Revenue
Code of 1986, as amended from time to time, including rules, regulations and guidance promulgated thereunder and successor provisions
and rules and regulations thereto (except as otherwise specified herein).

 

“Committee” means the Compensation
and Benefits Committee of the Board, any successor to such committee or a subcommittee thereof or, if the Board so determines,
another committee of the Board, in each case composed of no fewer than two directors, each of whom is a Non-Employee Director and
(as necessary for purposes of Outstanding Qualified Performance-Based Awards) an “outside director” within the meaning
of Section 162(m). In accordance with Section 3(b) of the Plan, “Committee” shall include the Board for purposes
of Awards granted to Directors.

 

“Company” means Arconic Inc., a Delaware
corporation (formerly known as Alcoa Inc.), including any successor thereto.

 

“Contingency Period” has the meaning
set forth in SECTION 8.

 

“Director” means a member of the Board
who is not an Employee.

 

    	2

     

    

 

“Employee” means any employee (including
any officer or employee director) of the Company or of any Subsidiary.

 

“Equity Restructuring” means a nonreciprocal
transaction between the Company and its shareholders, such as a stock dividend, stock split (including a reverse stock split),
spin-off, rights offering or recapitalization through a large, nonrecurring cash dividend, that affects the Shares (or other securities
of the Company) or the price of Shares (or other securities) and causes a change in the per share value of the Shares underlying
outstanding Awards.

 

“Executive Officer” means an officer
who is designated as an executive officer by the Board or by its designees in accordance with the definition of executive officer
under Rule 3b-7 of the U.S. Securities Exchange Act of 1934, as amended.

 

“Exercisable Time-Based Award” has
the meaning set forth in SECTION 12.

 

“Fair Market Value” with respect to
Shares on any given date means the closing price per Share on that date as reported on the New York Stock Exchange or other stock
exchange on which the Shares principally trade. If the New York Stock Exchange or such other exchange is not open for business
on the date fair market value is being determined, the closing price as reported for the immediately preceding business day on
which that exchange is open for business will be used. For avoidance of doubt, for tax purposes upon settlement of an Award, the
fair market value of the Shares may be determined using such other methodology as may be required by applicable laws or as appropriate
for administrative reasons.

 

“Family Member” has the same meaning
as such term is defined in Form S-8 (or any successor form) promulgated under the U.S. Securities Act of 1933, as amended.

 

“Non-Employee Director” has the meaning
set forth in Rule 16b-3(b)(3) under the U.S. Securities Exchange Act of 1934, as amended, or any successor definition adopted by
the U.S. Securities and Exchange Commission.

 

“Option” means any right granted to
a Participant under the Plan allowing such Participant to purchase Shares at such price or prices and during such period or periods
as the Committee shall determine. All Options granted under the Plan are intended to be nonqualified stock options for purposes
of the Code.

 

“Other Awards” has the meaning set
forth in SECTION 10.

 

“Outstanding Qualified Performance-Based Awards”
shall mean any Awards granted prior to, and that are outstanding as of, the Third Restatement Date and that are intended to constitute
 “qualified performance-based compensation” as described in Section 162(m)(4)(C) of the Code. For avoidance of
doubt, all provisions of the Plan governing Outstanding Qualified Performance Awards that were in effect prior to the Third Restatement
Date shall continue in effect with respect to Outstanding Qualified Performance-Based Awards, notwithstanding the elimination of
such provisions from the Plan as of the Third Restatement Date.

 

“Participant” means an Employee or
a Director who is selected to receive an Award under the Plan.

 

“Performance Award” means any award
granted pursuant to SECTION 11 and, as applicable, SECTION 13 hereof in the form of Options, Stock Appreciation Rights, Restricted
Share Units, Restricted Shares or other awards of property, including cash, that have a performance feature described in SECTION
11 and/or SECTION 13.

 

“Performance Period” means that period
established by the Committee at the time any Performance Award is granted or at any time thereafter during which any performance
goals specified by the Committee with respect to such Award are to be measured. A Performance Period may not be less than one year.

 

    	3

     

    

 

“Plan” means this 2013 Arconic Stock
Incentive Plan, as amended and restated and as may be further amended from time to time.

 

“Prior Plans” mean the 2009 Alcoa
Stock Incentive Plan, 2004 Alcoa Stock Incentive Plan, the Long Term Stock Incentive Plan of Aluminum Company of America, and the
Alcoa Stock Incentive Plan, each as amended and restated from time to time.

 

“Replacement Award” means an Award
resulting from adjustments or substitutions referred to in Section 4(f) herein, provided that such Award is issued by a company
(foreign or domestic) the majority of the equity of which is listed under and in compliance with the domestic company listing rules
of the New York Stock Exchange or with a similarly liquid exchange which has comparable standards to the domestic company listing
standards of the New York Stock Exchange.

 

“Restricted Shares” has the meaning
set forth in SECTION 8.

 

“Restricted Share Unit” has the meaning
set forth in SECTION 9.

 

“Section 162(m)” means Section 162(m)
of the Code as in effect prior to its amendment by the Tax Cuts and Jobs Act, P.L. 115-97; all references in the Plan to sections
or subsections of Section 162(m) shall be construed accordingly.

 

“Shares” means the shares of common
stock of the Company, $1.00 par value.

 

“Stock Appreciation Right” means any
right granted under SECTION 7.

 

“Subsidiary” means any corporation
or other entity in which the Company owns, directly or indirectly, stock possessing 50% or more of the total combined voting power
of all classes of stock in such corporation or entity, and any corporation, partnership, joint venture, limited liability company
or other business entity as to which the Company possesses a significant ownership interest, directly or indirectly, as determined
by the Committee.

 

“Substitute Awards” means Awards granted
or Shares issued by the Company in assumption of, or in substitution or exchange for, awards previously granted, or the right or
obligation to make future awards, by a company acquired by the Company or any of its Subsidiaries or with which the Company or
any of its Subsidiaries combines.

 

“Third Restatement Date” has the meaning
set forth in SECTION 16.

 

“Time-Based Award” means any Award
granted pursuant to the Plan that is not a Performance Award.

 

SECTION 3. ADMINISTRATION.

 

		(a)	Administration by the Committee. The Plan shall be administered by the Committee. The Committee shall have full power
and authority, subject to such orders or resolutions not inconsistent with the provisions of the Plan as may from time to time
be adopted by the Board, to: (i) select the Employees of the Company and its Subsidiaries to whom Awards may from time to
time be granted hereunder; (ii) determine the type or types of Award to be granted to each Employee Participant hereunder;
(iii) determine the number of Shares to be covered by each Employee Award granted hereunder; (iv) determine the terms
and conditions of any Employee Award granted hereunder, and make modifications to such terms and conditions with respect to any
outstanding Employee Award, in each case, which are not inconsistent with the provisions of the Plan; (v) determine whether,
to what extent and under what circumstances Employee Awards may be settled in cash, Shares or other property or canceled or suspended;
(vi) determine whether, to what extent and under what circumstances cash, Shares and other property and other amounts payable
with respect to an Employee Award under this Plan shall be deferred either automatically or at the election of the Participant;
(vii) interpret and administer the Plan and any instrument or agreement entered into under the Plan; (viii) determine
whether any corporate transaction, such as a sale or spin-off of a division or business unit, or a joint venture, shall be deemed
to result in a Participant’s termination of service for purposes of Awards granted under the Plan; (ix) establish such
rules and regulations and appoint such agents as it shall deem appropriate for the proper administration of the Plan; and (x) make
any other determination and take any other action that the Committee deems necessary or desirable for administration of the Plan,
including, without limiting the generality of the foregoing, make any determinations necessary to effectuate the purpose of Section 12(a)(v)
below. Decisions of the Committee shall be final, conclusive and binding upon all persons, including the Company, any Participant
and any shareholder; provided that the Board shall approve any decisions affecting Director Awards.

 

    	4

     

    

 

		(b)	Administration by the Board. The Board shall have full power and authority, upon the recommendation of the Governance
and Nominating Committee of the Board to: (i) select the Directors of the Company to whom Awards may from time to time be
granted hereunder; (ii) determine the type or types of Award to be granted to each Director Participant hereunder; (iii) determine
the number of Shares to be covered by each Director Award granted hereunder; (iv) determine the terms and conditions of any
Director Award granted hereunder, and make modifications to such terms and conditions with respect to any outstanding Director
Award, in each case, which are not inconsistent with the provisions of the Plan; (v) determine whether, to what extent and
under what circumstances Director Awards may be settled in cash, Shares or other property or canceled or suspended; and (vi) determine
whether, to what extent and under what circumstances cash, Shares and other property and other amounts payable with respect to
a Director Award under this Plan shall be deferred either automatically or at the election of the Director. Notwithstanding any
provision to the contrary in the Plan or in any policy of the Company regarding compensation payable to a Director, the sum of
the grant date fair value (determined in accordance with Financial Accounting Standards Board Accounting Standards Codification
Topic 718, or any successor thereto) of all Awards payable in Shares and the maximum cash value of any other Award granted under
the Plan to an individual as compensation for services as a Director, together with cash compensation paid to the Director in the
form of Board and Committee retainer, meeting or similar fees, during any calendar year shall not exceed $750,000. For avoidance
of doubt, compensation shall count towards this limit for the calendar year in which it was granted or earned, and not later when
distributed, in the event it is deferred.

 

SECTION 4. SHARES SUBJECT TO THE PLAN.

 

		(a)	Number of Shares Reserved under the Plan. Subject to the adjustment provisions of Section 4(f) below and the provisions
of Section 4(b), commencing May 14, 2019, up to 66,666,666 Shares may be issued under the Plan (which reflects an increase
of 20,000,000 Shares from 46,666,666, the number of Shares that were authorized for issuance under the Plan as of May 6, 2016).
Each Share issued pursuant to an Award other than an Option or a Stock Appreciation Right shall count as 2.33 Shares for purposes
of the foregoing authorization. Each Share issued pursuant to an Option or Stock Appreciation Right shall be counted as one Share
for each Option or Stock Appreciation Right.

 

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		(b)	Share Replenishment. In addition to the Shares authorized by Section 4(a), the following Shares shall become available
for issuance under the Plan: (i) Shares underlying Awards that are granted under the Plan, which are subsequently forfeited,
cancelled or expire in accordance with the terms of the Award, and (ii) Shares underlying Awards that had previously been
granted under Prior Plans that are outstanding as of the date of the Plan, which are subsequently forfeited, cancelled or expire
in accordance with the terms of the Award. The following Shares shall not become available for issuance under the Plan: (x) Shares
tendered in payment of an Option or other Award, and (y) Shares withheld for taxes. Shares purchased by the Company using
Option proceeds shall not be added to the Plan limit and if Stock Appreciation Rights are settled in Shares, each Stock Appreciation
Right shall count as one Share whether or not Shares are actually issued or transferred under the Plan.

 

		(c)	Issued Shares. Shares shall be deemed to be issued hereunder only when and to the extent that payment or settlement
of an Award is actually made in Shares. Notwithstanding anything herein to the contrary, the Committee may at any time authorize
a cash payment in lieu of Shares, including without limitation if there are insufficient Shares available for issuance under the
Plan to satisfy an obligation created under the Plan.

 

		(d)	Source of Shares. Any Shares issued hereunder may consist, in whole or in part, of authorized and unissued Shares, treasury
Shares or Shares purchased in the open market or otherwise.

 

		(e)	Substitute Awards. Shares issued or granted in connection with Substitute Awards shall not reduce the Shares available
for issuance under the Plan or to a Participant in any calendar year.

 

		(f)	Adjustments. Subject to SECTION 12:

 

		(i)	Corporate Transactions other than an Equity Restructuring. In the event of any stock dividend, stock split, combination
or exchange of shares, merger, consolidation or other distribution (other than normal cash dividends) of Company assets to shareholders,
or any other change affecting the Shares or the price of the Shares other than an Equity Restructuring, the Committee shall make
such adjustments, if any, as the Committee in its discretion may deem appropriate to reflect such change with respect to (i) the
aggregate number and kind of shares that may be issued under the Plan (including, but not limited to, adjustments of the limitations
in Sections 4(a) and 13(d) hereof); (ii) the terms and conditions of any outstanding Awards (including, without limitation,
any applicable performance targets or criteria with respect thereto); and (c) the grant or exercise price per Share for any
outstanding Awards under the Plan. Any adjustment affecting an Outstanding Qualified Performance-Based Award shall be made consistent
with the requirements of Section 162(m).

 

In the event of any transaction or event described
above in this Section 4(f)(i) or any unusual or nonrecurring transactions or events affecting the Company, any affiliate of
the Company, or the financial statements of the Company or any affiliate, or of changes in applicable laws, regulations or accounting
principles, the Committee, on such terms and conditions as it deems appropriate, either by the terms of the Award or by action
taken prior to the occurrence of such transaction or event (except that action to give effect to a change in applicable laws or
accounting principles may be made within a reasonable period of time after such change), is hereby authorized to take actions,
including but not limited to any one or more of the following actions, whenever the Committee determines that such action is appropriate
in order to prevent dilution or enlargement of the benefits or potential benefits intended to be made available under the Plan
or with respect to any Award under the Plan, to facilitate such transactions or events or to give effect to such changes in laws,
regulations or principles, provided that the number of Shares subject to any Award will always be a whole number:

 

		(A)	To provide for either (I) termination of any such Award in exchange for an amount of cash, if any, equal to the amount that
would have been attained upon the exercise of such Award or realization of the Participant’s rights (and, for the avoidance
of doubt, if as of the date of the occurrence of the transaction or event described above in this Section 4(f)(i) the Committee
determines in good faith that no amount would have been attained upon the exercise of such Award or realization of the Participant’s
rights, then such Award may be terminated by the Company without payment) or (II) the replacement of such Award with other rights
or property selected by the Committee in its sole discretion;

 

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		(B)	To provide that such Award be assumed by the successor or survivor corporation, or a parent or subsidiary thereof, or shall
be substituted for by similar options, rights or awards covering the stock of the successor or survivor corporation, or a parent
or subsidiary thereof, with appropriate adjustments as to the number and kind of shares and prices;

 

		(C)	To make adjustments in the number and type of Shares (or other securities or property) subject to outstanding Awards, and in
the number and kind of outstanding Restricted Shares and/or in the terms and conditions of (including the grant or exercise price),
and the criteria included in, outstanding options, rights and awards;

 

		(D)	To provide that such Award shall be exercisable or payable or fully vested with respect to all Shares covered thereby; or

 

		(E)	To provide that the Award cannot vest, be exercised or become payable after such event.

 

		(ii)	Equity Restructuring. In connection with the occurrence of any Equity Restructuring, and notwithstanding anything to
the contrary in this Section 4(f), the Committee will adjust the terms of the Plan and each outstanding Award as it deems
equitable to reflect the Equity Restructuring, which may include (i) adjusting the number and type of securities subject to
each outstanding Award and/or with respect to which Awards may be granted under the Plan (including, but not limited to, adjustments
of the limitations in Sections 4(a) and 13(d) hereof); (ii) adjusting the terms and conditions of (including the grant or
exercise price), and the performance targets or other criteria included in, outstanding Awards; and (iii) granting new Awards
or making cash payments to Participants. The adjustments provided under this Section 4(f)(ii) will be nondiscretionary and
final and binding on all interested parties, including the affected Participant and the Company; provided that the Committee will
determine whether an adjustment is equitable and the number of Shares subject to any Award will always be a whole number.

 

		(iii)	Awards under Prior Plans. Any outstanding Awards granted under Prior Plans before the expiration date of the Prior Plans
shall continue to be subject to the terms and conditions of the Prior Plans.

 

SECTION 5. ELIGIBILITY AND VESTING REQUIREMENTS.

 

		(a)	Eligibility. Any Director or Employee shall be eligible to be selected as a Participant.

 

		(b)	Minimum Vesting. Notwithstanding any other provision of the Plan to the contrary, all awards granted under the Plan
after its approval by shareholders at the Company’s 2019 Annual Meeting of Shareholders shall have a minimum vesting period
of one year measured from the date of grant; provided, however, that up to 5% of the Shares available for future distribution under
the Plan as of such date may be granted without such minimum vesting requirement. Nothing in this Section 5(b) shall limit the
Company’s ability to grant Awards that contain rights to accelerated vesting on a termination of employment or service (or
to otherwise accelerate vesting), or limit any rights to accelerated vesting in connection with a Change in Control, as provided
in SECTION 12 of the Plan. In addition, the minimum vesting requirement set forth in this Section 5(b) shall not apply to Substitute
Awards or to Director Awards which vest on the earlier of the one-year anniversary of the date of grant and the next annual meeting
of the Company’s shareholders (which is at least 50 weeks after the immediately preceding year’s annual meeting) and
shall not limit the adjustment provisions of Section 4(f).

 

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SECTION 6. STOCK OPTIONS. Options may be granted hereunder
to Participants either alone or in addition to other Awards granted under the Plan. Any Option granted under the Plan may be evidenced
by an Award Agreement in such form as the Committee from time to time approves. Any such Option shall be subject to the terms and
conditions required by this SECTION 6 and to such additional terms and conditions, not inconsistent with the provisions of the
Plan, as the Committee may deem appropriate in each case.

 

		(a)	Option Price. The purchase price (or Option price) per Share purchasable under an Option shall be determined by the
Committee in its sole discretion; provided that, except in connection with an adjustment provided for in Section 4(f)
or Substitute Awards, such purchase price shall not be less than the Fair Market Value of one Share on the date of the grant of
the Option. The Committee may, in its sole discretion, establish a limit on the amount of gain that can be realized on an Option.

 

		(b)	Option Period. The term of each Option granted hereunder shall not exceed ten years from the date the Option is granted.

 

		(c)	Exercisability. Options shall be exercisable at such time or times as determined by the Committee at or subsequent to
grant, subject to Section 5(b).

 

		(d)	Method of Exercise. Subject to the other provisions of the Plan, any Option may be exercised by the Participant in whole
or in part at such time or times, and the Participant may make payment of the Option price in such form or forms, including, without
limitation, payment by delivery of cash, Shares or other consideration (including, where permitted by law and the Committee, Awards)
having a fair market value on the exercise date equal to the total Option price, or by any combination of cash, Shares and other
consideration as the Committee may specify in the applicable Award Agreement.

 

SECTION 7. STOCK APPRECIATION RIGHTS. Stock Appreciation
Rights may be granted to Participants on such terms and conditions as the Committee may determine, subject to the requirements
of the Plan. A Stock Appreciation Right shall confer on the holder a right to receive, upon exercise, the excess of (i) the
Fair Market Value of one Share on the date of exercise or, if the Committee shall so determine, at any time during a specified
period before the date of exercise over (ii) the grant price of the right on the date of grant, or if granted in connection
with an outstanding Option on the date of grant of the related Option, as specified by the Committee in its sole discretion, which,
except in the case of Substitute Awards or in connection with an adjustment provided in Section 4(f), shall not be less than
the Fair Market Value of one Share on such date of grant of the right or the related Option, as the case may be. Any payment by
the Company in respect of such right may be made in cash, Shares, other property or any combination thereof, as the Committee,
in its sole discretion, shall determine. The Committee may, in its sole discretion, establish a limit on the amount of gain that
can be realized on a Stock Appreciation Right.

 

		(a)	Grant Price. The grant price for a Stock Appreciation Right shall be determined by the Committee, provided, however,
and except as provided in Section 4(f) and Substitute Awards, that such price shall not be less than 100% of the Fair Market
Value of one Share on the date of grant of the Stock Appreciation Right.

 

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		(b)	Term. The term of each Stock Appreciation Right shall not exceed ten years from the date of grant, or if granted in
tandem with an Option, the expiration date of the Option.

 

		(c)	Time and Method of Exercise. The Committee shall establish the time or times at which a Stock Appreciation Right may
be exercised in whole or in part.

 

SECTION 8. RESTRICTED SHARES. 

 

		(a)	Definition. A Restricted Share means any Share issued with the contingency or restriction that the holder may not sell,
transfer, pledge or assign such Share and with such other contingencies or restrictions as the Committee, in its sole discretion,
may impose (including, without limitation, any contingency or restriction on the right to vote such Share), which contingencies
and restrictions may lapse separately or in combination, at such time or times, in installments or otherwise, as the Committee
may deem appropriate.

 

		(b)	Issuance. A Restricted Share Award shall be subject to contingencies or restrictions imposed by the Committee during
a period of time specified by the Committee (the “Contingency Period”). Restricted Share Awards may be
issued hereunder to Participants, for no cash consideration or for such minimum consideration as may be required by applicable
law, either alone or in addition to other Awards granted under the Plan. The terms and conditions of Restricted Share Awards need
not be the same with respect to each recipient.

 

		(c)	Registration. Any Restricted Share issued hereunder may be evidenced in such manner as the Committee in its sole discretion
shall deem appropriate, including, without limitation, book-entry registration or issuance of a stock certificate or certificates.
In the event any stock certificate is issued in respect of Restricted Shares awarded under the Plan, such certificate shall be
registered in the name of the Participant and shall bear an appropriate legend referring to the terms, conditions, contingencies
and restrictions applicable to such Award.

 

		(d)	Forfeiture. Except as otherwise determined by the Committee at the time of grant or thereafter or as otherwise set forth
in the terms and conditions of an Award, upon termination of service for any reason during the Contingency Period, all Restricted
Shares still subject to any contingency or restriction shall be forfeited by the Participant and reacquired by the Company.

 

		(e)	Section 83(b) Election. A Participant may, with the consent of the Company, make an election under Section 83(b)
of the Code to report the value of Restricted Shares as income on the date of grant.

 

SECTION 9. RESTRICTED SHARE UNITS. 

 

		(a)	Definition. A Restricted Share Unit is an Award of a right to receive, in cash or Shares, as the Committee may determine,
the Fair Market Value of one Share, the grant, issuance, retention and/or vesting of which is subject to such terms and conditions
as the Committee may determine at the time of the grant, which shall not be inconsistent with this Plan.

 

		(b)	Terms and Conditions. In addition to the terms and conditions that may be established at the time of a grant of Restricted
Share Unit Awards, the following terms and conditions apply:

 

		(i)	Restricted Share Unit Awards may not be sold, pledged (except as permitted under Section 15(a)) or otherwise encumbered
prior to the date on which the Shares are issued, or, if later, the date on which any applicable contingency, restriction or performance
period lapses.

 

		(ii)	Shares (including securities convertible into Shares) subject to Restricted Share Unit Awards may be issued for no cash consideration
or for such minimum consideration as may be required by applicable law. Shares (including securities convertible into Shares) purchased
pursuant to a purchase right granted under this SECTION 9 thereafter shall be purchased for such consideration as the Committee
shall in its sole discretion determine, which shall not be less than the Fair Market Value of such Shares or other securities as
of the date such purchase right is granted.

 

    	9

     

    

 

		(iii)	The terms and conditions of Restricted Share Unit Awards need not be the same with respect to each recipient.

 

SECTION 10. OTHER AWARDS. Other Awards of Shares and
other Awards that are valued in whole or in part by reference to, or are otherwise based on, Shares or other property (“Other
Awards”) may be granted to Participants. Other Awards may be paid in Shares, cash or any other form of property as
the Committee shall determine. Subject to the provisions of the Plan, the Committee shall have sole and complete authority to determine
the Participants to whom, and the time or times at which, such Awards shall be made, the number of Shares to be granted pursuant
to such Awards and all other conditions of the Awards. The terms and conditions of Other Awards need not be the same with respect
to each recipient.

 

SECTION 11. PERFORMANCE AWARDS. Awards with a performance
feature are referred to as “Performance Awards”. Performance Awards may be granted in the form of Options, Stock Appreciation
Rights, Restricted Share Units, Restricted Shares or Other Awards with the features and restrictions applicable thereto. The performance
criteria to be achieved during any Performance Period and the length of the Performance Period shall be determined by the Committee
upon the grant of each Performance Award, provided that the minimum performance period shall be one year. Performance Awards may
be paid in cash, Shares, other property or any combination thereof in the sole discretion of the Committee. The performance levels
to be achieved for each Performance Period and the amount of the Award to be paid shall be conclusively determined by the Committee.
Except as provided in SECTION 12, each Performance Award shall be paid following the end of the Performance Period or, if later,
the date on which any applicable contingency or restriction has ended. Unless otherwise determined by the Committee, Performance
Awards granted to Executive Officers will be subject to the additional terms set forth in SECTION 13.

 

SECTION 12. CHANGE IN CONTROL PROVISIONS.

 

		(a)	Effect of a Change in Control on Existing Awards under this Plan. Notwithstanding any other provision of the Plan to
the contrary, unless the Committee shall determine otherwise at the time of grant with respect to a particular Award, in the event
of a Change in Control:

 

		(i)	any Time-Based Award consisting of Options, Stock Appreciation Rights or any other Time-Based Award in the form of rights that
are exercisable by Participants upon vesting (“Exercisable Time-Based Award”), that is outstanding as
of the date on which a Change in Control shall be deemed to have occurred and that is not then vested, shall become vested and
exercisable, unless replaced by a Replacement Award;

 

		(ii)	any Time-Based Award that is not an Exercisable Time-Based Award that is outstanding as of the date on which a Change in Control
shall be deemed to have occurred and that is not then vested, shall become free of all contingencies, restrictions and limitations
and shall become vested and transferable, unless replaced by a Replacement Award;

 

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		(iii)	any Replacement Award for which an Exercisable Time-Based Award has been exchanged upon a Change in Control shall vest and
become exercisable in accordance with the vesting schedule and term for exercisability that applied to the corresponding Exercisable
Time-Based Award immediately prior to such Change in Control, provided, however, that if within twenty four (24) months
of such Change in Control, the Participant’s service with the Company or a Subsidiary is terminated without Cause (as such
term is defined in the Arconic Inc. Change in Control Severance Plan) or by the Participant for Good Reason (as such term is defined
in the Arconic Inc. Change in Control Severance Plan), such Award shall become vested and exercisable to the extent outstanding
at the time of such termination of service. Any Replacement Award that has become vested and exercisable pursuant to this paragraph
shall expire on the earlier of (A) thirty six (36) months following the date of termination of such Participant’s
service (or, if later, the conclusion of the applicable post-termination exercise period pursuant to the applicable Award Agreement)
and (B) the last day of the term of such Replacement Award;

 

		(iv)	any Replacement Award for which a Time-Based Award that is not an Exercisable Time-Based Award has been exchanged upon a Change
in Control shall vest in accordance with the vesting schedule that applied to the corresponding Time-Based Award immediately prior
to such Change in Control, provided, however, that if within twenty four (24) months of such Change in Control,
the Participant’s service with the Company or a Subsidiary is terminated without Cause (as such term is defined in the Arconic
Inc. Change in Control Severance Plan) or by the Participant for Good Reason (as such term is defined in the Arconic Inc. Change
in Control Severance Plan), such Award shall become free of all contingencies, restrictions and limitations and become vested and
transferable to the extent outstanding;

 

		(v)	any Performance Award shall be converted so that such Award is no longer subject to any performance condition referred to in
SECTION 11 above, but instead is subject to the passage of time, with the number or value of such Replacement Award determined
as follows: (A) if 50% or more of the Performance Period has been completed as of the date on which such Change in Control
is deemed to have occurred, the number or value of such Award shall be based on actual performance during the Performance Period;
or (B) if less than 50% of the Performance Period has been completed as of the date on which such Change in Control is deemed
to have occurred, the number or value of such Award shall be the target number or value. Paragraphs (i) through (iv) above
shall govern the terms of such Time-Based Award.

 

		(b)	Change in Control Settlement. Notwithstanding any other provision of this Plan, if approved by the Committee, upon a
Change in Control, a Participant may receive a cash settlement under clauses (i) and (ii) below of existing Awards that
are vested and exercisable as of the date on which such Change in Control shall be deemed to have occurred:

 

		(i)	a Participant who holds an Option or Stock Appreciation Right may, in lieu of the payment of the purchase price for the Shares
being purchased under the Option or Stock Appreciation Right, surrender the Option or Stock Appreciation Right to the Company and
receive cash, within 30 days of the Change in Control in an amount equal to the amount by which the Fair Market Value of the Shares
on the date of the Change in Control exceeds the purchase price per Share under the Option or Stock Appreciation Right multiplied
by the number of Shares granted under the Option or Stock Appreciation Right; and

 

		(ii)	a Participant who holds Restricted Share Units may, in lieu of receiving Shares which have vested under Section 12(a)(ii)
of this Plan, receive cash, within 30 days of a Change in Control (or at such other time as may be required to comply with Section
409A of the Code), in an amount equal to the Fair Market Value of the Shares on the date of the Change in Control multiplied by
the number of Restricted Share Units held by the Participant.

 

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SECTION 13. PERFORMANCE AWARDS GRANTED TO EXECUTIVE OFFICERS.

 

		(a)	Notwithstanding any other provision of this Plan, if the Committee grants a Performance Award to a Participant who is an Executive
Officer, such Performance Award will be subject to the terms of this SECTION 13, unless otherwise expressly determined by the Committee.

 

		(b)	If an Award is subject to this SECTION 13 and is not an Option or a Stock Appreciation Right, then the lapsing of contingencies
or restrictions thereon and the distribution of cash, Shares or other property pursuant thereto, as applicable, shall be subject
to the achievement by the Company on a consolidated basis, by specified Subsidiaries or divisions or business units of the Company,
and/or by the individual Participant, as appropriate, of one or more performance goals established by the Committee. Performance
goals shall be based on such measures as selected by the Committee in its discretion, including, without limitation, (i) GAAP or
non-GAAP metrics, (ii) total shareholder return or other return-based metrics, (iii) operational, efficiency-based, strategic corporate
or personal professional objectives, (iv) sustainability or compliance targets or (v) any other metric that is capable of measurement
as determined by the Committee. Performance goals may be calculated to exclude special items, unusual or infrequently occurring
items or nonrecurring items or may be normalized for fluctuations in market forces, including, but not limited to, foreign currency
exchange rates and the price of aluminum on the London Metal Exchange. Performance goals shall be set by the Committee (and any
adjustments shall be made by the Committee, subject to Section 15(d)) within the first 25% of the Performance Period.

 

		(c)	Notwithstanding any provision of this Plan other than Section 4(f) and SECTION 12, with respect to any Award that is subject
to this SECTION 13 (other than an Option or a Stock Appreciation Right), the Committee may adjust downwards, but not upwards, the
amount payable pursuant to such Award, and the Committee may not waive the achievement of the applicable performance goals.

 

		(d)	Subject to the adjustment provisions of Section 4(f), with respect to Awards subject to this SECTION 13, no Participant
may be granted Options and/or Stock Appreciation Rights in any calendar year with respect to more than 3,333,333 Shares, or Restricted
Share Awards or Restricted Share Unit Awards covering more than 1,500,000 Shares. The maximum dollar value payable with respect
to Performance Awards that are valued with reference to property other than Shares and granted to any Participant in any one calendar
year is $15,000,000.

 

SECTION 14. AMENDMENTS AND TERMINATION. The Board may
amend, alter, suspend, discontinue or terminate the Plan or any portion thereof at any time; provided that notwithstanding
any other provision in this Plan, no such amendment, alteration, suspension, discontinuation or termination shall be made: (a) without
shareholder approval, if such approval would be required pursuant to applicable law or the requirements of the New York Stock Exchange
or such other stock exchange on which the Shares trade; or (b) without the consent of the affected Participant, if such action
would materially impair the rights of such Participant under any outstanding Award, except as provided in Sections 15(e) and 15(f).
Notwithstanding anything to the contrary herein, the Committee may amend the Plan in such manner as may be necessary so as to have
the Plan conform to local rules and regulations in any jurisdiction outside the United States or to qualify for or comply with
any tax or regulatory requirement for which or with which the Board or Committee deems it necessary or desirable to qualify or
comply. For clarity, this paragraph shall apply to all Awards granted under the Plan, whether granted prior to or following the
amendment and restatement of the Plan effective on May 6, 2016.

 

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SECTION 15. GENERAL PROVISIONS. 

 

		(a)	Transferability of Awards. Awards may be transferred by will or the laws of descent and distribution. Except as set
forth herein, awards shall be exercisable, during the Participant’s lifetime, only by the Participant or, if permissible
under applicable law, by the Participant’s guardian or legal representative. Unless otherwise provided by the Committee or
limited by applicable laws, a Participant may, in the manner established by the Committee, designate a beneficiary to exercise
the rights of the Participant with respect to any Award upon the death of the Participant. Unless otherwise provided by the Committee
or limited by applicable laws, Awards may be transferred to one or more Family Members, individually or jointly, or to a trust
whose beneficiaries include the Participant or one or more Family Members under terms and conditions established by the Committee.
The Committee shall have authority to determine, at the time of grant, any other rights or restrictions applicable to the transfer
of Awards; provided however, that no Award may be transferred to a third party for value or consideration. Except as provided
in this Plan or the terms and conditions established for an Award, any Award shall be null and void and without effect upon any
attempted assignment or transfer, including, without limitation, any purported assignment, whether voluntary or by operation of
law, pledge, hypothecation or other disposition, attachment, divorce or trustee process or similar process, whether legal or equitable.

 

		(b)	Award Entitlement. No Employee or Director shall have any claim to be granted any Award under the Plan and there is
no obligation for uniformity of treatment of Employees or Directors under the Plan.

 

		(c)	Terms and Conditions of Award. The prospective recipient of any Award under the Plan shall be deemed to have become
a Participant subject to all the applicable terms and conditions of the Award upon the grant of the Award to the prospective recipient,
unless the prospective recipient notifies the Company within 30 days of the grant that the prospective recipient does not accept
the Award. This Section 15(c) is without prejudice to the Company’s right to require a Participant to affirmatively
accept the terms and conditions of an Award.

 

		(d)	Award Adjustments. The Committee shall be authorized to make adjustments in Performance Award criteria or in the terms
and conditions of other Awards in recognition of unusual or nonrecurring events affecting the Company or its financial statements
or changes in applicable laws, regulations or accounting principles. The Committee may correct any defect, supply any omission
or reconcile any inconsistency in the Plan or any Award in the manner and to the extent it shall deem desirable to carry it into
effect.

 

		(e)	Committee Right to Cancel. The Committee shall have full power and authority to determine whether, to what extent and
under what circumstances any Award shall be canceled or suspended at any time prior to a Change in Control: (i) if an Employee,
without the consent of the Committee, while employed by the Company or a Subsidiary or after termination of such employment, becomes
associated with, employed by, renders services to or owns any interest (other than an interest of up to 5% in a publicly traded
company or any other nonsubstantial interest, as determined by the Committee) in any business that is in competition with the Company
or any Subsidiary; (ii) in the event of the Participant’s willful engagement in conduct which is injurious to the Company
or any Subsidiary, monetarily, reputationally or otherwise; (iii) in the event of an Executive Officer’s misconduct
described in Section 15(f); or (iv) in order to comply with applicable laws as described in Section 15(h) below.
For purposes of clause (ii), no act, or failure to act, on the Participant’s part shall be deemed “willful” unless
done, or omitted to be done, by the Participant not in good faith and without reasonable belief that the Participant’s act,
or failure to act, was in the best interest of the Company or a Subsidiary. In the event of a dispute concerning the application
of this Section 15(e), no claim by the Company shall be given effect unless the Board determines that there is clear and convincing
evidence that the Committee has the right to cancel an Award or Awards hereunder, and the Board finding to that effect is adopted
by the affirmative vote of not less than three quarters of the entire membership of the Board (after reasonable notice to the Participant
and an opportunity for the Participant to provide information to the Board in such manner as the Board, in its sole discretion,
deems to be appropriate under the circumstances).

 

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		(f)	Clawback. Notwithstanding any other provision of the Plan to the contrary, in accordance with the Company’s Corporate
Governance Guidelines, if the Board learns of any misconduct by an Executive Officer that contributed to the Company having to
restate all or a portion of its financial statements, the Board will, to the full extent permitted by governing law, in all appropriate
cases, effect the cancellation and recovery of Awards (or the value of Awards) previously granted to the Executive Officer if:
(i) the amount of the Award was calculated based upon the achievement of certain financial results that were subsequently
the subject of a restatement, (ii) the executive engaged in intentional misconduct that caused or partially caused the need
for the restatement, and (iii) the amount of the Award had the financial results been properly reported would have been lower
than the amount actually awarded. Furthermore, all Awards (including Awards that have vested in accordance with the Award Agreement)
shall be subject to the terms and conditions, if applicable, of any other recoupment policy adopted by the Company from time to
time or any recoupment requirement imposed under applicable laws, rules, regulations or stock exchange listing standards, including,
without limitation, recoupment requirements imposed pursuant to Section 954 of the Dodd-Frank Wall Street Reform and Consumer
Protection Act of 2010, Section 304 of the Sarbanes-Oxley Act of 2002, or any regulations promulgated thereunder, or recoupment
requirements under the laws of any other jurisdiction.

 

		(g)	Stock Certificate Legends. All certificates for Shares delivered under the Plan pursuant to any Award shall be subject
to such stock transfer orders and other restrictions as the Committee may deem advisable under the rules, regulations, and other
requirements of the U.S. Securities and Exchange Commission, any stock exchange upon which the Shares are then listed and any applicable
Federal or state securities law, and the Committee may cause a legend or legends to be put on any such certificates to make appropriate
reference to such restrictions.

 

		(h)	Compliance with Securities Laws and Other Requirements. No Award granted hereunder shall be construed as an offer to
sell securities of the Company, and no such offer shall be outstanding, unless and until the Company in its sole discretion has
determined that any such offer, if made, would be in compliance with all applicable requirements of the U.S. Federal securities
laws and any other laws, rules, regulations, stock exchange listing or other requirements to which such offer, if made, would be
subject. Without limiting the foregoing, the Company shall have no obligation to issue or deliver Shares pursuant to Awards granted
hereunder prior to: (i) obtaining any approvals from governmental agencies that the Company determines are necessary or advisable,
and (ii) completion of any registration or other qualification with respect to the Shares under any applicable law in the
United States or in a jurisdiction outside of the United States or procurement of any ruling or determination of any governmental
body that the Company determines to be necessary or advisable or at a time when any such registration, qualification or determination
is not current, has been suspended or otherwise has ceased to be effective. The inability or impracticability of the Company to
obtain or maintain authority from any regulatory body having jurisdiction, which authority is deemed by the Company’s counsel
to be necessary to the lawful issuance and sale of any Shares hereunder, shall relieve the Company of any liability in respect
of the failure to issue or sell such Shares as to which such requisite authority shall not have been obtained, and shall constitute
circumstances in which the Committee may determine to amend or cancel Awards pertaining to such Shares, with or without consideration
to the affected Participants.

 

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		(i)	Dividends. No Award of Options or Stock Appreciation Rights shall have the right to receive dividends or dividend equivalents.
A recipient of an Award of Restricted Shares shall receive dividends on the Restricted Shares, subject to this Section 15(i) and
such other contingencies or restrictions, if any, as the Committee, in its sole discretion, may impose. Dividend equivalents shall
accrue on Restricted Share Units (including Restricted Share Units that have a performance feature) and shall only be paid if and
when such Restricted Share Units vest. Dividend equivalents that accrue on Restricted Share Units will be calculated at the same
rate as dividends paid on the common stock of the Company. Notwithstanding any provision herein to the contrary, no dividends or
dividend equivalents shall be paid on Restricted Share Units that have not vested or on Restricted Share Units that have not been
earned during a Performance Period and in no event shall any other Award provide for the Participant’s receipt of dividends
or dividend equivalents in any form prior to the vesting of such Award or applicable portion thereof.

 

		(j)	Consideration for Awards. Except as otherwise required in any applicable Award Agreement or by the terms of the Plan,
recipients of Awards under the Plan shall not be required to make any payment or provide consideration other than the rendering
of services.

 

		(k)	Delegation of Authority by Committee. The Committee may delegate to one or more Executive Officers or a committee of
Executive Officers the right to grant Awards to Employees who are not Executive Officers or Directors of the Company and to cancel
or suspend Awards to Employees who are not Executive Officers or Directors of the Company. The Committee may delegate other of
its administrative powers under the Plan to the extent not prohibited by applicable laws.

 

		(l)	Tax Obligations. The Company shall be authorized to withhold from any Award granted or payment due under the Plan the
amount of Tax Obligations due in respect of an Award or payment hereunder and to take such other action as may be necessary in
the opinion of the Company to satisfy all obligations for the payment of such Tax Obligations, including without limitation requiring
the Participant to pay cash, withholding otherwise deliverable cash or Shares having a fair market value equal to the amount required
to be withheld, forcing the sale of Shares issued pursuant to an Award (or exercise or vesting thereof) having a fair market value
equal to the amount required to be withheld, or requiring the Participant to deliver to the Company already-owned Shares having
a fair market value equal to the amount required to be withheld. For purposes of the foregoing, “Tax Obligations”
means tax, social insurance and social security liability obligations and requirements in connection with the Awards, including,
without limitation, (i) all U.S. Federal, state, and local income, employment and any other taxes (including the Participant’s
U.S. Federal Insurance Contributions Act (FICA) obligation) that are required to be withheld by the Company (or a Subsidiary, as
applicable), (ii) the Participant’s and, to the extent required by the Company (or a Subsidiary, as applicable), the
Company’s (or a Subsidiary’s) fringe benefit tax liability, if any, associated with the grant, vesting, or exercise
of an Award or sale of Shares issued under the Award, and (iii) any other taxes, social insurance, social security liabilities
or premium for which the Participant has an obligation, or which the Participant has agreed to bear, with respect to such Award
(or exercise thereof or issuance of Shares or other consideration thereunder). Furthermore, the Committee shall be authorized to,
but is not required to, establish procedures for election by Participants to satisfy such obligations for the payment of such taxes
by delivery of or transfer of Shares to the Company or by directing the Company to retain Shares otherwise deliverable in connection
with the Award. All personal taxes applicable to any Award under the Plan are the sole liability of the Participant.

 

		(m)	Other Compensatory Arrangements. Nothing contained in this Plan shall prevent the Board from adopting other or additional
compensation arrangements, subject to shareholder approval if such approval is required; and such arrangements may be either generally
applicable or applicable only in specific cases.

 

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		(n)	Governing Law. The Plan and all determinations made and actions taken thereunder, to the extent not otherwise governed
by the laws of the United States, shall be governed by the laws of the State of New York, United States of America, without reference
to principles of conflict of laws, and construed accordingly.

 

		(o)	Severability. If any provision of this Plan is or becomes or is deemed invalid, illegal or unenforceable in any jurisdiction,
or would disqualify the Plan or any Award under any law deemed applicable by the Committee, such provision shall be construed or
deemed amended to conform to applicable laws or if it cannot be construed or deemed amended without, in the determination of the
Committee, materially altering the intent of the Plan, it shall be stricken and the remainder of the Plan shall remain in full
force and effect.

 

		(p)	Awards to Non-U.S. Employees. Awards may be granted to Employees and Directors who are foreign nationals or residents
or employed outside the United States, or both, on such terms and conditions different from those applicable to Awards to Employees
and Directors who are not foreign nationals or residents or who are employed in the United States as may, in the judgment of the
Committee, be necessary or desirable in order to recognize differences in local law, regulations or tax policy. Without limiting
the generality of the foregoing, the Committee or the Board, as applicable, are specifically authorized to (i) adopt rules
and procedures regarding the conversion of local currency, withholding procedures and handling of stock certificates which vary
with local requirements and (ii) adopt sub-plans, Award Agreements and Plan and Award Agreement addenda as may be deemed desirable
to accommodate foreign laws, regulations and practice. The Committee also may impose conditions on the exercise or vesting of Awards
in order to minimize the Company’s or a Subsidiary’s obligation with respect to tax equalization for Employees on assignments
outside their home countries. Notwithstanding the discretion of the Committee under this section, the Participant remains solely
liable for any applicable personal taxes.

 

		(q)	Repricing Prohibited. Except as provided in Section 4(f), the terms of outstanding Options or Stock Appreciation
Rights may not be amended, and action may not otherwise be taken without shareholder approval, to: (i) reduce the exercise
price of outstanding Options or Stock Appreciation Rights, (ii) cancel outstanding Options or Stock Appreciation Rights in
exchange for Options or Stock Appreciation Rights with an exercise price that is less than the exercise price of the original Options
or Stock Appreciation Rights, or (iii) replace outstanding Options or Stock Appreciation Rights in exchange for other Awards
or cash at a time when the exercise price of such Options or Stock Appreciation Rights is higher than the Fair Market Value of
a Share.

 

		(r)	Deferral. The Committee may require or permit Participants to elect to defer the issuance of Shares or the settlement
of Awards in cash or other property to the extent that such deferral complies with Section 409A of the Code. The Committee
may also authorize the payment or crediting of interest, dividends or dividend equivalents on any deferred amounts.

 

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		(s)	Compliance with Section 409A of the Code. Except to the extent specifically provided otherwise by the Committee
and notwithstanding any other provision of the Plan, Awards under the Plan are intended to satisfy the requirements of Section 409A
of the Code so as to avoid the imposition of any additional taxes or penalties under Section 409A of the Code. If the Committee
determines that an Award, payment, distribution, transaction or any other action or arrangement contemplated by the provisions
of the Plan would, if undertaken, cause a Participant to become subject to any additional taxes or other penalties under Section 409A
of the Code, then unless the Committee specifically provides otherwise, such Award, payment, distribution, transaction or other
action or arrangement shall not be given effect to the extent it causes such result and the related provisions of the Plan and/or
Award Agreement will be deemed modified, or, if necessary, suspended in order to comply with the requirements of Section 409A
of the Code to the extent determined appropriate by the Committee, in each case without the consent of or notice to the Participant.
No payment that constitutes deferred compensation under Section 409A of the Code that would otherwise be made under the Plan or
an Award Agreement upon a Participant’s termination of employment will be made or provided unless and until such termination
is also a “separation from service,” as determined in accordance with Section 409A of the Code. Notwithstanding the
foregoing or anything elsewhere in the Plan or an Award Agreement to the contrary, if a Participant is a “specified employee”
within the meaning of Section 409A of the Code at the time of termination of employment with respect to an Award, then solely to
the extent necessary to avoid the imposition of any additional tax under Section 409A of the Code, the commencement of any payments
or benefits under the Award shall be delayed to the extent required by Code Section 409A(a)(2)(B)(i). Further notwithstanding anything
to the contrary in the Plan, to the extent required under Section 409A of the Code in order to make payment of an Award upon a
Change in Control, the applicable transaction or event described in SECTION 2 must qualify as a change in the ownership or effective
control of the Company or as a change in the ownership of a substantial portion of the assets of the Company pursuant to Section
409A(a)(2)(A)(v) of the Code, and if it does not, then unless otherwise specified in the applicable Award Agreement, payment of
such Award will be made on the Award’s original payment schedule or, if earlier, upon the death of the Participant. Although
the Company may attempt to avoid adverse tax treatment under Section 409A of the Code, the Company makes no representation
to that effect and expressly disavows any covenant to maintain favorable or avoid unfavorable tax treatment. The Company shall
be unconstrained in its corporate activities without regard to the potential negative tax impact on holders of Awards under the
Plan.

 

		(t)	Effect of Headings. The Section headings and subheadings herein are for convenience of reference only, are not to be
considered a part hereof, and shall in no way modify or restrict any of the terms or provisions hereof.

 

SECTION 16. TERM OF PLAN. No Award shall be granted pursuant
to the Plan after May 2, 2024, but any Award theretofore granted may extend beyond that date. The Plan became effective upon
its approval by the Company’s shareholders on May 3, 2013 and was subsequently amended and restated by the Board and
re-approved by shareholders, effective May 6, 2016. On February 1, 2018, the Board approved the First Amendment to the Plan. On
March 27, 2018, the Board approved a second amendment and restatement of the Plan, which was approved by the Company’s shareholders
on May 16, 2018. On February 12, 2019 (the “Third Restatement Date”), the Board approved a third amendment
and restatement of the Plan, which was approved by the Company’s shareholders on May 14, 2019. For avoidance of doubt, no
amendment or restatement of the Plan shall affect the terms or conditions of any Outstanding Qualified Performance-Based Award,
to the extent that it would result in a material modification of such Award within the meaning of P.L. 115-97, Section 13601(e)(2).

 

SECTION 17. TERMINATION OF PRIOR PLAN. No stock options
or other awards may be granted under the Amended and Restated 2009 Alcoa Stock Incentive Plan after May 2, 2013, but all such
awards theretofore granted shall extend for the full stated terms thereof and be administered under the Amended and Restated 2009
Alcoa Stock Incentive Plan. Notwithstanding any other provision to the contrary, all outstanding awards previously granted under
Prior Plans shall be governed by the terms and conditions of the applicable Prior Plans under which such awards were granted.

 

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