X0306 4 2019-08-05 0000004281 Arconic Inc. ARNC 0001136562 PLANT JOHN C 390 PARK AVENUE NEW YORK, NY 10022 1 1 0 0 Chairman and CEO Restricted Stock Unit 2019-08-05 4 A 0 400000 0 A Common Stock 400000 400000 D Restricted Stock Unit 2019-08-05 4 A 0 50000 0 A Common Stock 50000 50000 D Restricted Stock Unit 2019-08-05 4 A 0 50000 0 A Common Stock 50000 50000 D Restricted Stock Unit 2019-08-05 4 A 0 50000 0 A Common Stock 50000 50000 D Restricted Stock Unit 2019-08-05 4 A 0 50000 0 A Common Stock 50000 50000 D Each restricted stock unit represents a contingent right to receive one share of common stock of Arconic Inc. ("Arconic") or, at Arconic's election, cash equivalent to the fair market value thereof. These restricted stock units generally vest on August 6, 2020, contingent on Mr. Plant's continued employment as Chief Executive Officer or as Advisor to Arconic through such date and subject to partial or full accelerated vesting upon the occurrence of certain events. Vested restricted stock units will be settled in shares or cash, as applicable, within 30 days following the vesting date. These restricted stock units generally vest on August 6, 2020 if the Spinoff Date (as defined in the Letter Agreement, by and between Arconic and John C. Plant, dated as of August 1, 2019 (the "Letter Agreement")) has occurred prior to August 6, 2020, contingent on Mr. Plant's continued employment as Chief Executive Officer or as Advisor to Arconic through August 6, 2020, and subject to partial or full accelerated vesting upon the occurrence of certain events. Vested restricted stock units will be settled in shares or cash, as applicable, within 30 days following the vesting date. These restricted stock units generally vest on the later of August 6, 2020 and the date Arconic's common stock achieves an Average Price (as defined in the Letter Agreement) of $32 per share, subject to achievement of such Average Price no later than August 6, 2021, contingent on Mr. Plant's continued employment as Chief Executive Officer or as Advisor to Arconic through August 6, 2020, and subject to partial or full accelerated vesting upon the occurrence of certain events. Vested restricted stock units will be settled in shares or cash, as applicable, within 30 days following the vesting date. These restricted stock units generally vest on the later of August 6, 2020 and the date Arconic's common stock achieves an Average Price (as defined in the Letter Agreement) of $34 per share, subject to achievement of such Average Price no later than August 6, 2021, contingent on Mr. Plant's continued employment as Chief Executive Officer or as Advisor to Arconic through August 6, 2020, and subject to partial or full accelerated vesting upon the occurrence of certain events. Vested restricted stock units will be settled in shares or cash, as applicable, within 30 days following the vesting date. These restricted stock units generally vest on the later of August 6, 2020 and the date Arconic's common stock achieves an Average Price (as defined in the Letter Agreement) of $36 per share, subject to achievement of such Average Price no later than August 6, 2021, contingent on Mr. Plant's continued employment as Chief Executive Officer or as Advisor to Arconic through August 6, 2020, and subject to partial or full accelerated vesting upon the occurrence of certain events. Vested restricted stock units will be settled in shares or cash, as applicable, within 30 days following the vesting date. /s/ Margaret Lam (Assistant Secretary), by power of attorney 2019-08-07