USA - New York Stock Exchange - NYSE:ATI - US01741R1023 - Common Stock
| Shares Outstanding | 135.86M |
| Float | 134.76M |
| Float Short Interest Percentage | 1.66% |
| Owners (insider) | 0.45% |
| Owners (institutional) | 97.46% |
| Owners (insider) change | 1.44% |
| Owners (institutional) change | 0.41% |
| Date | Name | Type | Shares | Price | Amount |
|---|---|---|---|---|---|
| Jan 5, 2026 | Harris Timothy J | Option Excercise | 54560 | 121.08 | $ 6,606,124.80 |
| Jan 5, 2026 | Bhatia Vaishali S. | Grant | 3152 | 0.00 | $ 0.00 |
| Jan 5, 2026 | Bhatia Vaishali S. | Option Excercise | 1944 | 121.08 | $ 235,379.52 |
| Jan 5, 2026 | WETHERBEE ROBERT S | Option Excercise | 362644 | 0.00 | $ 0.00 |
| Jan 5, 2026 | WETHERBEE ROBERT S | Option Excercise | 158297 | 121.08 | $ 19,166,600.76 |
| Jan 5, 2026 | WETHERBEE ROBERT S | Grant | 185276 | 0.00 | $ 0.00 |
| Jan 5, 2026 | Miller Michael Benjamin | Grant | 854 | 0.00 | $ 0.00 |
| Jan 5, 2026 | Miller Michael Benjamin | Option Excercise | 374 | 121.08 | $ 45,283.92 |
| Jan 5, 2026 | Fields Kimberly A | Grant | 94726 | 0.00 | $ 0.00 |
| Jan 5, 2026 | Fields Kimberly A | Option Excercise | 98620 | 0.00 | $ 0.00 |
| Jan 5, 2026 | Fields Kimberly A | Option Excercise | 78251 | 121.08 | $ 9,474,631.08 |
| Jan 5, 2026 | Harris Timothy J | Grant | 48995 | 0.00 | $ 0.00 |
| Jan 5, 2026 | Harris Timothy J | Option Excercise | 70442 | 0.00 | $ 0.00 |
| Dec 18, 2025 | WETHERBEE ROBERT S | Open Market Sale | 60020 | 109.57 | $ 6,576,513.09 |
| Nov 25, 2025 | Harris Timothy J | Open Market Sale | 10542 | 97.88 | $ 1,031,850.96 |
| Nov 21, 2025 | Busch Tina Killough | Open Market Sale | 2598 | 93.26 | $ 242,289.48 |
| Nov 19, 2025 | BALL M LEROY | Other Disposition | 185 | 0.00 | $ 0.00 |
| Nov 19, 2025 | Lydon-Rodgers Jean | Grant | 631 | 0.00 | $ 0.00 |
| Nov 19, 2025 | Lund Elizabeth Hefley | Grant | 631 | 0.00 | $ 0.00 |
| Nov 18, 2025 | WETHERBEE ROBERT S | Open Market Sale | 60000 | 98.34 | $ 5,900,154.91 |
| Nov 18, 2025 | Harris Timothy J | Open Market Sale | 10542 | 97.77 | $ 1,030,691.34 |
| Nov 11, 2025 | Harris Timothy J | Open Market Sale | 10543 | 97.69 | $ 1,029,945.67 |
| Nov 4, 2025 | Harris Timothy J | Open Market Sale | 10543 | 96.07 | $ 1,012,866.01 |
| Oct 15, 2025 | Fields Kimberly A | Open Market Sale | 21153 | 85.87 | $ 1,816,408.11 |
| Oct 10, 2025 | Busch Tina Killough | Option Excercise | 2122 | 81.21 | $ 172,327.62 |
| Oct 6, 2025 | Fields Kimberly A | Open Market Sale | 21154 | 82.03 | $ 1,735,262.62 |
| Sep 22, 2025 | Fields Kimberly A | Open Market Sale | 20312 | 80.33 | $ 1,631,662.96 |
| Sep 9, 2025 | Fields Kimberly A | Open Market Sale | 15941 | 77.52 | $ 1,235,746.32 |
| Aug 5, 2025 | WETHERBEE ROBERT S | Open Market Sale | 50000 | 74.66 | $ 3,733,165.26 |
| Aug 4, 2025 | Morehouse David J | Open Market Sale | 7900 | 75.81 | $ 598,920.00 |
| Jun 12, 2025 | WETHERBEE ROBERT S | Open Market Sale | 50000 | 83.93 | $ 4,196,521.95 |
| Jun 3, 2025 | WETHERBEE ROBERT S | Open Market Sale | 50000 | 81.64 | $ 4,082,000.00 |
| May 20, 2025 | HARVEY J BRETT | Grant | 4039 | 0.00 | $ 0.00 |
| May 20, 2025 | Corvi Carolyn | Grant | 1655 | 0.00 | $ 0.00 |
| May 20, 2025 | Carlisle Herbert J | Grant | 1655 | 0.00 | $ 0.00 |
| May 20, 2025 | BALL M LEROY | Grant | 1655 | 0.00 | $ 0.00 |
| May 20, 2025 | WETHERBEE ROBERT S | Open Market Sale | 45359 | 75.31 | $ 3,415,986.29 |
| May 20, 2025 | Sharma Ruby | Grant | 1655 | 0.00 | $ 0.00 |
| May 20, 2025 | Morehouse David J | Grant | 3311 | 0.00 | $ 0.00 |
| May 20, 2025 | Kah Marianne | Grant | 1655 | 0.00 | $ 0.00 |
| May 20, 2025 | Hess David P | Grant | 3509 | 0.00 | $ 0.00 |
| May 6, 2025 | WETHERBEE ROBERT S | Open Market Sale | 50000 | 68.18 | $ 3,409,132.80 |
| Apr 1, 2025 | Morehouse David J | Open Market Sale | 17000 | 52.03 | $ 884,510.00 |
| Mar 20, 2025 | Bhatia Vaishali S. | Option Excercise | 3509 | 52.19 | $ 183,134.71 |
| Feb 6, 2025 | Busch Tina Killough | Open Market Sale | 9900 | 66.41 | $ 657,459.00 |