X0306 4 2021-03-10 0 0001675149 Alcoa Corp AA 0001808037 Jones Tammi A 201 ISABELLA STREET SUITE 500 PITTSBURGH PA 15212 0 1 0 0 EVP & CHRO Common Stock, par value $0.01 per share 2021-03-10 4 S 0 2731 31.8881 D 43562 D Common Stock, par value $0.01 per share 57 I By Company 401(k) Plan Common Stock, par value $0.01 per share 2021-03-10 4 M 0 1000 19.89 A 7750 I By Spouse Common Stock, par value $0.01 per share 2021-03-10 4 M 0 1000 24.73 A 8750 I By Spouse Common Stock, par value $0.01 per share 2021-03-10 4 M 0 2214 15.10 A 10964 I By Spouse Common Stock, par value $0.01 per share 2021-03-10 4 S 0 4214 31.9097 D 6750 I By Spouse Employee Stock Option (right to buy) 19.89 2021-03-10 4 M 0 1000 0.00 D 2014-01-16 2023-01-16 Common Stock 1000 0 I By Spouse Employee Stock Option (right to buy) 24.73 2021-03-10 4 M 0 1000 0.00 D 2015-01-16 2024-01-16 Common Stock 1000 0 I By Spouse Employee Stock Option (right to buy) 15.10 2021-03-10 4 M 0 2214 0.00 D 2017-01-19 2026-01-19 Common Stock 2214 0 I By Spouse The price reported in column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $31.8801 - $31.8950. 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. Fluctuations in 401(k) share amounts reflect the plan's unit reporting method; units represent interests in the Company's stock fund. The price reported in column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $31.5103 - $32.2750. 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. This option vested in equal installments over three years beginning on the date shown. /s/ Marissa P. Earnest, attorney-in-fact for Tammi A. Jones 2021-03-12