X0306 4 2023-01-31 0 0000004281 Howmet Aerospace Inc. HWM 0001898777 CHANATRY MICHAEL NIEM 201 ISABELLA STREET SUITE 200 PITTSBURGH PA 15212-5872 0 1 0 0 Vice President Phantom Stock Units 2023-01-31 4 A 0 208 40.27 A Common Stock 208 43452 D Each phantom stock unit is the economic equivalent of one share of Howmet Aerospace common stock. Phantom stock units were acquired under the Howmet Aerospace Deferred Compensation Plan and will be paid out in cash after termination of employment. The reporting person may transfer the phantom stock units into an alternative investment account under the plan at times permitted under the plan. /s/ Margaret Lam, Assistant Secretary / Attorney-in-fact 2023-02-02