ATI Insider Trading Activity and SEC Form 4 Filings
ATI insider trading summary
Over the past 12 months, insiders at Ati Inc (ATI) reported 47 sales worth $67.5M by 5 insiders and no open-market purchases on SEC Form 4. Net insider selling was $67.5M.
Latest ATI insider buys and sells
| Date | Insider | Role | Type | Value |
|---|---|---|---|---|
| Sep 21, 2026 | Timothy J Harris | Senior VP and CDIO | Sell | $1.7M (9,000 @ $191.82) |
| Sep 14, 2026 | Timothy J Harris | Senior VP and CDIO | Sell | $3.2M (16,500 @ $193.06) |
| Sep 2, 2026 | David J Morehouse | Insider | Sell | $501K (2,485 @ $201.61) |
| Aug 31, 2026 | Timothy J Harris | Senior VP and CDIO | Sell | $3.5M (16,500 @ $210.01) |
| Aug 24, 2026 | Timothy J Harris | Senior VP and CDIO | Sell | $3.4M (16,500 @ $206.92) |
| Aug 17, 2026 | Kimberly A Fields | Chair, President and CEO | Sell | $1.1M (4,598 @ $232.43) |
| Aug 17, 2026 | Kimberly A Fields | Chair, President and CEO | Sell | $228K (1,000 @ $228.32) |
| Aug 17, 2026 | Kimberly A Fields | Chair, President and CEO | Sell | $1.9M (8,131 @ $230.66) |
| Aug 17, 2026 | Kimberly A Fields | Chair, President and CEO | Sell | $2.1M (9,116 @ $231.72) |
| Aug 17, 2026 | Kimberly A Fields | Chair, President and CEO | Sell | $459K (2,000 @ $229.56) |
Source: SEC Form 4 filings. Open-market purchases (code P) and sales (code S) only; option exercises, grants and gifts are excluded.