X0508 4 2026-01-29 0001675149 Alcoa Corp AA 0001808037 Jones Tammi A 201 ISABELLA STREET, SUITE 500 PITTSBURGH PA 15212 false true false false EVP & CHRO false Common Stock, par value $0.01 per share 2026-01-29 4 F false 2819 60.64 D 53570 D Common Stock, par value $0.01 per share 2026-01-29 4 A false 35 60.64 A 53605 D Common Stock, par value $0.01 per share 2026-01-29 4 F false 19 60.64 D 53586 D Common Stock, par value $0.01 per share 2026-01-29 4 F false 683 60.64 D 11248 I By Spouse Common Stock, par value $0.01 per share 2026-01-29 4 A false 8 60.64 A 11256 I By Spouse Common Stock, par value $0.01 per share 2026-01-29 4 F false 5 60.64 D 11251 I By Spouse Common Stock, par value $0.01 per share 60 I By Company 401(k) Represents the withholding of shares by the issuer to satisfy the reporting person's tax obligations upon the vesting of restricted stock units (RSUs) granted in 2025. Shares acquired pursuant to stock settlement of dividend equivalents accumulated in cash and converted to stock upon the vesting and settlement of the underlying RSUs, granted in 2025, based on the share price at the time of vesting. Represents the withholding of shares by the issuer to satisfy the reporting person's tax obligations upon stock settlement of dividend equivalents accumulated in cash and converted to stock upon the vesting and settlement of the underlying RSUs, granted in 2025, based on the share price at the time of vesting. Fluctuations in 401(k) share amounts reflect the plan's unit reporting method; units represent interests in the Company's stock fund. /s/ Marissa P. Earnest, attorney-in-fact for Tammi A. Jones 2026-02-02