X0306 4 2021-02-26 0001790982 Arconic Corp ARNC 0001806395 Miller Melissa M 201 ISABELLA STREET SUITE 200 PITTSBURGH PA 15212 0 1 0 0 Executive VP & CHRO Common Stock 2021-02-26 4 P 0 3000 22.85 A 95353 D Common Stock 2021-02-26 4 P 0 2500 22.87 A 2500 I By Spouse Common Stock 607 I By Company 401(k) plan Ms. Miller purchased these shares on the open market. Adam Wheeler, Assistant General Counsel and Assistant Corporate Secretary, By Power of Attorney 2021-03-01