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ATI INC Director's Dealing 2026

Feb 19, 2026

30560_dirs_2026-02-19_bbe4334a-e5ec-41a9-8c60-c320ad375ab9.zip

Director's Dealing

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SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ATI INC (ATI)
CIK: 0001018963
Period of Report: 2026-02-17

Reporting Person: WETHERBEE ROBERT S (N/A)

Non-Derivative Transactions

Date Security Code Shares Price A/D Holdings After Ownership
2026-02-17 Common Stock, par value $0.10 per share S 12435 $144.01 Disposed 317188.3409 Direct
2026-02-17 Common Stock, par value $0.10 per share S 8403 $145.17 Disposed 308785.3409 Direct
2026-02-17 Common Stock, par value $0.10 per share S 28724 $146.07 Acquired 280061.3409 Direct
2026-02-10 Common Stock, par value $0.10 per share S 10438 $146.67 Disposed 269623.3409 Direct

Footnotes

F1: Shares sold pursuant to a 10b5-1 Trading Plan dated August 15, 2025, entered into for personal tax and estate planning purposes.

F2: The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $143.45 to $144.45. The reporting person undertakes to provide to the Issuer, its security holders and the Staff of the U.S. Securities and Exchange Commission (the "SEC"), upon request, full information regarding the number of shares sold at each specific price within the range reported.

F3: The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $144.48 to $145.47. The reporting person undertakes to provide to the Issuer, its security holders and the Staff of the SEC, upon request, full information regarding the number of shares sold at each specific price within the range reported.

F4: The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $145.51 to $146.51. The reporting person undertakes to provide to the Issuer, its security holders and the Staff of the SEC, upon request, full information regarding the number of shares sold at each specific price within the range reported.

F5: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $146.52 to $146.88, The reporting person undertakes to provide to the Issuer, its security holders and the Staff of the U. S. Securities and Exchange Commission (the "SEC"), upon request, full information regarding the number of shares sold at each specific price within the range reported.