ATI · Insider Trading
ATI Inc.
Every open-market purchase and sale reported by ATI officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-23 | Timothy J Harris | Senior VP and CDIO | Sell | −9,000 | −$1.73M |
| 2026-09-16 | Timothy J Harris | Senior VP and CDIO | Sell | −16,500 | −$3.19M |
| 2026-09-10 | Timothy J Harris | Senior VP and CDIO | Sell | −16,500 | −$3.42M |
| 2026-09-04 | David J Morehouse | Director | Sell | −2,485 | −$501.00K |
| 2026-09-02 | Timothy J Harris | Senior VP and CDIO | Sell | −16,500 | −$3.47M |
| 2026-08-26 | Timothy J Harris | Senior VP and CDIO | Sell | −16,500 | −$3.41M |
| 2026-08-19 | Kimberly A Fields | Chair, President and CEO | Sell | −24,845 | −$5.74M |
| 2026-07-30 | Kimberly A Fields | Chair, President and CEO | Sell | −31,757 | −$6.07M |
| 2026-07-09 | Kimberly A Fields | Chair, President and CEO | Sell | −40,000 | −$7.32M |
| 2026-07-06 | James Robert Foster | SVP, Finance and CFO | M | −163 | −$31.59K |
| 2026-06-24 | Kimberly A Fields | Chair, President and CEO | Sell | −20,693 | −$4.15M |
| 2026-06-04 | Kimberly A Fields | Chair, President and CEO | Sell | −59,749 | −$10.70M |
| 2026-05-21 | M Leroy Ball | Director | A | +905 | — |
| 2026-05-21 | Herbert J Carlisle | Director | A | +905 | — |
| 2026-05-21 | Carolyn Corvi | Director | A | +905 | — |
| 2026-05-21 | David P Hess | Director | A | +905 | — |
| 2026-05-21 | Marianne Kah | Director | A | +905 | — |
| 2026-05-21 | Elizabeth Hefley Lund | Director | A | +905 | — |
| 2026-05-21 | Jean Lydon-Rodgers | Director | A | +905 | — |
| 2026-05-21 | David J Morehouse | Director | A | +1,743 | — |
| 2026-05-21 | Ruby Sharma | Director | A | +905 | — |
| 2026-05-12 | Kimberly A Fields | President, CEO and Director | Sell | −40,000 | −$6.37M |
| 2026-03-24 | Vaishali S. Bhatia | SVP, General Counsel and CCO | F | −3,509 | −$505.12K |
| 2026-03-11 | David J Morehouse | Director | Sell | −6,609 | −$1.02M |
| 2026-03-03 | Michael Benjamin Miller | VP Chief Accounting Officer | F | −413 | −$67.73K |
| 2026-02-19 | Robert S Wetherbee | Executive Chairman | Sell | −2,552 | −$345.85K |
| 2026-02-19 | M Leroy Ball | Director | G | −350 | — |
| 2026-01-23 | James Robert Foster | SVP, Finance and CFO | MIXED | +28,365 | −$2.85M |
| 2026-01-07 | Vaishali S. Bhatia | SVP, General Counsel and CCO | MIXED | +1,208 | −$235.38K |
| 2026-01-07 | Timothy J Harris | Senior VP and CDIO | MIXED | +64,877 | −$6.61M |
| 2026-01-07 | Kimberly A Fields | President, CEO and Director | MIXED | +115,095 | −$9.47M |
| 2026-01-07 | Michael Benjamin Miller | VP Chief Accounting Officer | MIXED | +480 | −$45.28K |
| 2026-01-07 | Robert S Wetherbee | Executive Chairman | MIXED | +389,623 | −$19.17M |
| 2025-12-19 | Robert S Wetherbee | Executive Chairman | Sell | −47,704 | −$5.22M |
| 2025-12-09 | Michael Benjamin Miller | VP Chief Accounting Officer | A | +1,709 deriv. | — |
| 2025-12-09 | Timothy J Harris | Senior VP and CDIO | A | +6,837 deriv. | — |
| 2025-12-09 | Vaishali S. Bhatia | SVP, General Counsel and CCO | A | +6,837 deriv. | — |
| 2025-12-09 | Kimberly A Fields | President, CEO and Director | A | +34,188 deriv. | — |
| 2025-11-25 | Tina Killough Busch | SVP, CHRO | Sell | −2,598 | −$242.29K |
| 2025-11-25 | Timothy J Harris | Senior VP and CDIO | Sell | −10,542 | −$1.03M |
| 2025-11-21 | Elizabeth Hefley Lund | Director | A | +631 | — |
| 2025-11-21 | Jean Lydon-Rodgers | Director | A | +631 | — |
| 2025-11-21 | M Leroy Ball | Director | G | −185 | — |
| 2025-11-20 | Timothy J Harris | Senior VP and CDIO | Sell | −10,542 | −$1.03M |
| 2025-11-20 | Robert S Wetherbee | Executive Chairman | Sell | −60,000 | −$5.90M |
| 2025-11-12 | Timothy J Harris | Senior VP and CDIO | Sell | −10,543 | −$1.03M |
| 2025-11-05 | Timothy J Harris | Senior VP and CDIO | Sell | −10,543 | −$1.01M |
| 2025-10-16 | Kimberly A Fields | President, CEO and Director | Sell | −21,153 | −$1.82M |
| 2025-10-14 | Tina Killough Busch | SVP, CHRO | F | −2,122 | −$172.33K |
| 2025-10-08 | Kimberly A Fields | President, CEO and Director | Sell | −21,154 | −$1.74M |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Robert S Wetherbee | Executive Chairman | 280,061 | $50.60M |
| Donald P Newman | EVP and CFO | 195,845 | $35.39M |
| Kimberly A Fields | Chair, President and CEO | 114,433 | $20.68M |
| J Brett Harvey | Director | 98,865 | $17.86M |
| Timothy J Harris | Senior VP and CDIO | 88,187 | $15.93M |
| Carolyn Corvi | Director | 71,145 | $12.86M |
| Vaishali S. Bhatia | SVP, General Counsel and CCO | 58,420 | $10.56M |
| James Robert Foster | SVP, Finance and CFO | 57,824 | $10.45M |
| Herbert J Carlisle | Director | 37,556 | $6.79M |
| David J Morehouse | Director | 35,826 | $6.47M |
| Marianne Kah | Director | 35,075 | $6.34M |
| David P Hess | Director | 34,945 | $6.31M |
| M Leroy Ball | Director | 34,737 | $6.28M |
| Tina Killough Busch | SVP, CHRO | 21,274 | $3.84M |
| Jimmy Williams Jr. | SVP, CTO | 11,620 | $2.10M |
| Michael Benjamin Miller | VP Chief Accounting Officer | 7,639 | $1.38M |
| Ruby Sharma | Director | 7,285 | $1.32M |
| Elizabeth Hefley Lund | Director | 1,536 | $277.54K |
| Jean Lydon-Rodgers | Director | 1,536 | $277.54K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the ATI quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.