X0306 5 2022-12-31 0 0 0 0001018963 ATI INC ATI 0001229771 BALL M LEROY C/O ATI INC. 2021 MCKINNEY AVE., SUITE 1100 DALLAS TX 75201 1 0 0 0 Common Stock, par value $0.10 per share 2022-08-15 5 G 0 830 0.00 D 27933 D /s/ Amanda J. Skov, Attorney-in-Fact for Leroy M. Ball 2023-02-14