Tina K. Busch - Oct 10, 2025 Form 4 Insider Report for ATI INC (ATI)

Role
SVP, CHRO
Signature
/s/ Amanda J. Skov, Attorney-in-Fact for Tina K. Busch
Stock symbol
ATI
Transactions as of
Oct 10, 2025
Transactions value $
-$172,328
Form type
4
Date filed
10/14/2025, 09:15 AM
Previous filing
Feb 7, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Busch Tina Killough SVP, CHRO C/O ATI INC., 2021 MCKINNEY AVE., SUITE 1100, DALLAS /s/ Amanda J. Skov, Attorney-in-Fact for Tina K. Busch 2025-10-14 0001949998

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ATI Common Stock, par value $0.10 per share Tax liability -$172K -2.12K -8.16% $81.21 23.9K Oct 10, 2025 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Shares withheld for payment of taxes on restricted stock units awarded on October 10, 2022. One-third of such restricted stock units vested by their terms on October 10, 2025.