Alcoa Corp — Director's Dealing 2026

Feb 25, 2026

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----- Start of picture text ----- FORM 4 OMB APPROVALCheck this box if no longer subject to Section 16.OMB Number: 3235-0287Form 4 or Form 5 obligations may continue. SeeInstruction 1(b). UNITED STATES SECURITIES AND EXCHANGE COMMISSION Estimated average burden hours perCheck this box to indicate that a transaction was Washington, D.C. 20549 response... 0.5made pursuant to a contract, instruction or written STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIESplan for the purchase or sale of equity securities of Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940the issuer that is intended to satisfy the affirmativedefense conditions of Rule 10b5-1(c). SeeInstruction 10.(Print or Type Responses)1. Name and Address of Reporting Person [*] 2. Issuer Name and Ticker or Trading Symbol 5. Relationship of Reporting Person(s) to IssuerBeerman, Molly S ALCOA CORPORATION [ AA ] (Check all applicable)_____ Director _____ 10% Owner(Last) (First) (Middle) 3. Date of Earliest Transaction (Month/Day/Year) __ __ Officer (give title below)X _____ Other (specify below)201 Isabella Street, Suite 500 02/23/2026 EVP & CFO(Street) 4. If Amendment, Date Original Filed (Month/Day/Year) 6. Individual or Joint/Group Filing (Check Applicable Line)_ _ Form filed by One Reporting Person XPittsburgh, PA 15212 ___ Form filed by More than One Reporting Person(City) (State) (Zip)Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned1.Title of Security 2. Transaction 2A. Deemed 3. Transaction 4. Securities Acquired (A) or 5. Amount of Securities Beneficially Owned 6. 7. Nature(Instr. 3) Date (Month Execution Code Disposed of (D) Following Reported Transaction(s) Ownership of Indirect/Day/Year) Date, if any (Instr. 8) (Instr. 3, 4 and 5) (Instr. 3 and 4) Form: Beneficial(Month/Day Direct (D) Ownership/Year) or Indirect (Instr. 4)(A) or (I)Code V Amount (D) Price (Instr. 4)Common Stock, par value $0.01 per share 02/23/2026 A 6,990 (1) A $ 0 122,501 DCommon Stock, par value $0.01 per share 02/23/2026 F 3,040 (2) D $ 59.81 119,461 D----- End of picture text -----

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----- Start of picture text ----- Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned( e.g. , puts, calls, warrants, options, convertible securities)1. Title of Derivative 2. Conversion 3. Transaction 3A. Deemed 4. Transaction 5. Number of 6. Date Exercisable and Expiration 7. Title and Amount of 8. Price of 9. Number 10. 11. NatureSecurity or Exercise Date (Month Execution Code Derivative Securities Date Underlying Securities Derivative of Ownership of Indirect(Instr. 3) Price of /Day/Year) Date, if any (Instr. 8) Acquired (A) or (Month/Day/Year) (Instr. 3 and 4) Security Derivative Form of BeneficialDerivative (Month/Day Disposed of (D) (Instr. 5) Securities Derivative OwnershipSecurity /Year) (Instr. 3, 4, and 5) Beneficially Security: (Instr. 4)Owned Direct (D)Following or IndirectAmount or Reported (I)Date Exercisable Expiration Date Title Number of Shares Transaction (Instr. 4)(s)Code V (A) (D) (Instr. 4)----- End of picture text -----

Explanation of Responses:

1. Earned performance restricted stock units (PRSUs) granted in 2023.

2. Represents the withholding of shares by the issuer to satisfy the reporting person's tax obligations upon the vesting of PRSUs granted in 2023.

/s/ Marissa P. Earnest, attorney-in-fact for Molly S. Beerman 02/25/2026

** Signature of Reporting Person Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

***** If the form is filed by more than one reporting person, see

Instruction 4(b)(v).

****** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure. Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.