Michael Benjamin Miller - 02 Mar 2026 Form 4 Insider Report for ATI INC (ATI)

Role
VP Chief Accounting Officer
Signature
/s/ Amanda J. Skov, Attorney-in-Fact for Michael B. Miller
Issuer symbol
ATI
Transactions as of
02 Mar 2026
Net transactions value
-$67,732
Form type
4
Filing time
03 Mar 2026, 21:55:20 UTC
Previous filing
07 Jan 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Miller Michael Benjamin VP Chief Accounting Officer C/O ATI INC., 2021 MCKINNEY AVENUE, SUITE 1100, DALLAS /s/ Amanda J. Skov, Attorney-in-Fact for Michael B. Miller 03 Mar 2026 0001880164

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 $67,732 -413 -5.1% $164.00 7,639 02 Mar 2026 Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Shares withheld for the payment of taxes on restricted stock units awarded on March 1, 2024. One-third of such restricted stock units vested by their terms on March 1, 2026.
F2 Represents the average of the high and low trading prices of one share of the Issuer's Common Stock on the New York Stock Exchange on March 2, 2026.