Kimberly A. Fields - 05 Dec 2025 Form 4 Insider Report for ATI INC (ATI)

Role
President, CEO and Director, Director
Signature
/s/ Amanda J. Skov, Attorney-in-Fact for Kimberly A. Fields
Issuer symbol
ATI
Transactions as of
05 Dec 2025
Transactions value $
$0
Form type
4
Date filed
09 Dec 2025, 18:18
Previous filing
16 Oct 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Fields Kimberly A President, CEO and Director, Director C/O ATI INC., 2021 MCKINNEY AVE., SUITE 1100, DALLAS /s/ Amanda J. Skov, Attorney-in-Fact for Kimberly A. Fields 2025-12-09 0001773072

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction ATI Performance Stock Unit Award +34.2K 34.2K 05 Dec 2025 Common Stock, par value $0.10 per share 34.2K Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Each Performance Stock Unit ("PSU") represents a contingent right to receive one share of the Issuer's Common Stock if the Issuer's Common Stock achieves a specified target market price (based on a 10-trading day average) on the NYSE for at least 20 consecutive trading days (the "Average Market Price") prior to December 31, 2029. Each PSU may result in the right to receive additional shares of the Issuer's Common Stock, up to a maximum of three shares per PSU, to the extent that the Issuer's Common Stock acheives Average Market Prices at specified levels in excess of the target market price prior to December 31, 2029. Vested shares, if any, generally are apyable in two equal installments in early 2030 and 2031.
F2 Awarded under the Issuer's 2022 Incentive Plan.