SEC Form 4 · accession 0001773072-26-000002
ATI INC · ATI
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Kimberly A Fields
Officer — Chair, President and CEO · Director
Period of report
Jun 2, 2026
Accepted (ET)
Jun 4, 2026 · 7:14 pm EDT
Rule 10b5-1 plan
yes — trade under a plan
Issuer CIK
0001018963
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common Stock, par value $0.10 per shareF1,F2 | Jun 2, 2026 | S | 25,823 | $177.97 | D | 251,940 | D | |
| Common Stock, par value $0.10 per shareF1,F3 | Jun 2, 2026 | S | 13,865 | $179.05 | D | 238,075 | D | |
| Common Stock, par value $0.10 per shareF1,F4 | Jun 2, 2026 | S | 13,164 | $179.71 | D | 224,911 | D | |
| Common Stock, par value $0.10 per shareF1,F5 | Jun 2, 2026 | S | 1,896 | $180.80 | D | 223,015 | D | |
| Common Stock, par value $0.10 per shareF1,F6 | Jun 2, 2026 | S | 2,000 | $181.90 | D | 221,015 | D | |
| Common Stock, par value $0.10 per shareF1,F7 | Jun 2, 2026 | S | 3,001 | $182.75 | D | 218,014 | D |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1Shares sold pursuant to a 10b5-1 Trading Plan dated February 5, 2026, entered into for personal tax and estate planning purposes.
- F2The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $177.42 to $178.35. 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.
- F3The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $178.42 to $179.40. 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.
- F4The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $179.41 to $180.27. 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.
- F5The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $180.45 to $181.26. 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.
- F6The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $181.47 to $182.45. 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.
- F7The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $182.49 to 183.18. 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.