X0306 4 2019-01-24 0 0001675149 Alcoa Corp AA 0001612161 Harvey Roy Christopher 201 ISABELLA STREET SUITE 500 PITTSBURGH PA 15212-5858 1 1 0 0 President, CEO & Director Common Stock, par value $0.01 per share 2019-01-24 4 A 0 57230 0.00 A 161317 D Common Stock, par value $0.01 per share 2019-01-24 4 A 0 8679 0.00 A 169996 D Common Stock, par value $0.01 per share 2019-01-24 4 F 0 10696 27.96 D 159300 D Common Stock, par value $0.01 per share 874 I By Company 401(k) plan Employee Stock Option (right to buy) 27.96 2019-01-24 4 A 0 147070 0.00 A 2029-01-24 Common Stock 147070 147070 D Award of restricted stock units, which are settled in stock upon vesting, generally on the third anniversary of the date of grant. Earned 2018 tranche of performance restricted stock unit (PRSU) awards granted in 2016. Represents the mandatory and automatic exempt withholding of shares by the issuer to satisfy the reporting person's tax obligations upon the vesting of PRSUs granted in 2016. Fluctuations in 401(k) share amounts reflect the plan's unit reporting method; units represent interests in the Company's stock fund. The option vests in three equal installments beginning January 24, 2020. Exhibit List Exhibit 24 - Power of Attorney - Roy C. Harvey /s/ Marissa P. Earnest, attorney-in-fact for Roy C. Harvey 2019-01-28