X0306 4 2022-01-26 0 0001675149 Alcoa Corp AA 0001686245 Heeter Jeffrey D. 201 ISABELLA STREET SUITE 500 PITTSBURGH PA 15212-5858 0 1 0 0 EVP & Gen. Counsel Common Stock, par value $0.01 per share 2022-01-26 4 A 0 6590 0.00 A 63062 D Common Stock, par value $0.01 per share 2022-01-26 4 A 0 31117 0.00 A 94179 D Common Stock, par value $0.01 per share 2022-01-26 4 F 0 13421 60.75 D 80758 D Common Stock, par value $0.01 per share 2022-01-26 4 S 0 8332 63.0514 D 72426 D Award of restricted stock units, which are settled in stock upon vesting, generally on the third anniversary of the date of grant. Earned performance restricted stock units (PRSUs) granted in 2019. Represents the withholding of shares by the issuer to satisfy the reporting person's tax obligations upon the vesting of PRSUs granted in 2019. The price reported in column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $62.9200 - $63.1950. The reporting person undertakes to provide to Alcoa Corporation, any security holder of Alcoa Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each price within the range set forth in this footnote. /s/ Marissa P. Earnest, attorney-in-fact for Jeffrey D. Heeter 2022-01-28