0000950142-23-002266 S-8 POS 1 20230818 20230818 20230818 Arconic Corp 0001790982 3350 842745636 DE 1231 S-8 POS 33 333-256335 231183899 201 ISABELLA STREET PITTSBURGH PA 15212-5872 (412) 992-2500 201 ISABELLA STREET PITTSBURGH PA 15212-5872 Arconic Rolled Products Corp 20191011 S-8 POS 1 eh230391941_s8pos1-335.htm AMENDMENT NO. 1