USA - New York Stock Exchange - NYSE:ATKR - US0476491081 - Common Stock
| Shares Outstanding | 33.75M |
| Float | 33.27M |
| Float Short Interest Percentage | 6.87% |
| Owners (insider) | 1.18% |
| Owners (institutional) | 99.27% |
| Owners (insider) change | 6.22% |
| Owners (institutional) change | -0.16% |
| Date | Name | Type | Shares | Price | Amount |
|---|---|---|---|---|---|
| Dec 17, 2025 | Johnson Betty R. | Grant | 51 | 0.00 | $ 0.00 |
| Dec 17, 2025 | Kershaw Justin A | Grant | 93 | 0.00 | $ 0.00 |
| Dec 17, 2025 | James Wilbert W Jr | Grant | 85 | 0.00 | $ 0.00 |
| Dec 17, 2025 | SCHROCK MICHAEL V | Grant | 9 | 0.00 | $ 0.00 |
| Dec 17, 2025 | Deitzer John Michael | Grant | 68 | 0.00 | $ 0.00 |
| Dec 17, 2025 | Pregenzer John W | Grant | 132 | 0.00 | $ 0.00 |
| Dec 17, 2025 | Alvey James William | Grant | 14 | 0.00 | $ 0.00 |
| Dec 17, 2025 | Zeffiro A Mark | Grant | 68 | 0.00 | $ 0.00 |
| Dec 17, 2025 | Lowe LeAngela W. | Grant | 52 | 0.00 | $ 0.00 |
| Dec 17, 2025 | Isbell Jeri L | Grant | 139 | 0.00 | $ 0.00 |
| Dec 17, 2025 | Kelly Daniel S | Grant | 53 | 0.00 | $ 0.00 |
| Dec 17, 2025 | Waltz William E Jr. | Grant | 350 | 0.00 | $ 0.00 |
| Dec 17, 2025 | Lamps Mark F. | Grant | 68 | 0.00 | $ 0.00 |
| Dec 17, 2025 | MUSE SCOTT H | Grant | 131 | 0.00 | $ 0.00 |
| Dec 17, 2025 | Edwards Barbara Joanne | Grant | 15 | 0.00 | $ 0.00 |
| Nov 18, 2025 | Deitzer John Michael | Option Excercise | 806 | 65.10 | $ 52,470.60 |
| Nov 18, 2025 | Alvey James William | Option Excercise | 164 | 65.10 | $ 10,676.40 |
| Nov 18, 2025 | Waltz William E Jr. | Option Excercise | 4832 | 65.10 | $ 314,563.20 |
| Nov 18, 2025 | Pregenzer John W | Option Excercise | 917 | 65.10 | $ 59,696.70 |
| Nov 18, 2025 | Lamps Mark F. | Option Excercise | 1053 | 65.10 | $ 68,550.30 |
| Nov 18, 2025 | Lowe LeAngela W. | Option Excercise | 674 | 65.10 | $ 43,877.40 |
| Nov 18, 2025 | Kelly Daniel S | Option Excercise | 683 | 65.10 | $ 44,463.30 |
| Nov 17, 2025 | Alvey James William | Grant | 1450 | 0.00 | $ 0.00 |
| Nov 17, 2025 | Waltz William E Jr. | Grant | 40835 | 0.00 | $ 0.00 |
| Nov 17, 2025 | Pregenzer John W | Grant | 12374 | 0.00 | $ 0.00 |
| Nov 17, 2025 | Lamps Mark F. | Grant | 8043 | 0.00 | $ 0.00 |
| Nov 17, 2025 | Lowe LeAngela W. | Grant | 6187 | 0.00 | $ 0.00 |
| Nov 17, 2025 | Kelly Daniel S | Grant | 6187 | 0.00 | $ 0.00 |
| Nov 17, 2025 | Lamps Mark F. | Open Market Sale | 1000 | 64.75 | $ 64,750.00 |
| Nov 17, 2025 | Deitzer John Michael | Grant | 9281 | 0.00 | $ 0.00 |
| Nov 13, 2025 | Lamps Mark F. | Option Excercise | 604 | 64.83 | $ 39,157.32 |
| Nov 13, 2025 | Alvey James William | Option Excercise | 67 | 64.83 | $ 4,343.61 |
| Nov 13, 2025 | Lowe LeAngela W. | Option Excercise | 343 | 64.83 | $ 22,236.69 |
| Nov 13, 2025 | Waltz William E Jr. | Option Excercise | 2980 | 64.83 | $ 193,193.40 |
| Nov 13, 2025 | Kelly Daniel S | Option Excercise | 394 | 64.83 | $ 25,543.02 |
| Nov 13, 2025 | Deitzer John Michael | Option Excercise | 103 | 64.83 | $ 6,677.49 |
| Nov 13, 2025 | Pregenzer John W | Option Excercise | 533 | 64.83 | $ 34,554.39 |
| Nov 11, 2025 | Kelly Daniel S | Option Excercise | 289 | 65.11 | $ 18,816.79 |
| Nov 11, 2025 | Waltz William E Jr. | Option Excercise | 1994 | 65.11 | $ 129,829.34 |
| Nov 11, 2025 | Deitzer John Michael | Option Excercise | 136 | 65.11 | $ 8,854.96 |
| Nov 11, 2025 | Pregenzer John W | Option Excercise | 357 | 65.11 | $ 23,244.27 |
| Nov 11, 2025 | Lowe LeAngela W. | Option Excercise | 221 | 65.11 | $ 14,389.31 |
| Nov 11, 2025 | Lamps Mark F. | Option Excercise | 397 | 65.11 | $ 25,848.67 |
| Nov 11, 2025 | Alvey James William | Option Excercise | 86 | 65.11 | $ 5,599.46 |
| Aug 29, 2025 | Kershaw Justin A | Grant | 101 | 0.00 | $ 0.00 |
| Aug 29, 2025 | Edwards Barbara Joanne | Grant | 16 | 0.00 | $ 0.00 |
| Aug 29, 2025 | Zeffiro A Mark | Grant | 74 | 0.00 | $ 0.00 |
| Aug 29, 2025 | Deitzer John Michael | Grant | 36 | 0.00 | $ 0.00 |
| Aug 29, 2025 | Lowe LeAngela W. | Grant | 38 | 0.00 | $ 0.00 |
| Aug 29, 2025 | James Wilbert W Jr | Grant | 93 | 0.00 | $ 0.00 |
| Aug 29, 2025 | MUSE SCOTT H | Grant | 142 | 0.00 | $ 0.00 |
| Aug 29, 2025 | Kelly Daniel S | Grant | 40 | 0.00 | $ 0.00 |
| Aug 29, 2025 | Pregenzer John W | Grant | 98 | 0.00 | $ 0.00 |
| Aug 29, 2025 | SCHROCK MICHAEL V | Grant | 10 | 0.00 | $ 0.00 |
| Aug 29, 2025 | Lamps Mark F. | Grant | 51 | 0.00 | $ 0.00 |
| Aug 29, 2025 | Waltz William E Jr. | Grant | 267 | 0.00 | $ 0.00 |
| Aug 29, 2025 | Johnson Betty R. | Grant | 56 | 0.00 | $ 0.00 |
| Aug 29, 2025 | Alvey James William | Grant | 12 | 0.00 | $ 0.00 |
| Aug 29, 2025 | Isbell Jeri L | Grant | 152 | 0.00 | $ 0.00 |
| Aug 15, 2025 | Lamps Mark F. | Open Market Sale | 1000 | 59.37 | $ 59,370.00 |
| Aug 12, 2025 | Alvey James William | Option Excercise | 746 | 56.93 | $ 42,469.78 |
| May 28, 2025 | Alvey James William | Grant | 21 | 0.00 | $ 0.00 |
| May 28, 2025 | Kelly Daniel S | Grant | 35 | 0.00 | $ 0.00 |
| May 28, 2025 | Lamps Mark F. | Grant | 45 | 0.00 | $ 0.00 |
| May 28, 2025 | Pregenzer John W | Grant | 85 | 0.00 | $ 0.00 |
| May 28, 2025 | Deitzer John Michael | Grant | 31 | 0.00 | $ 0.00 |
| May 28, 2025 | Waltz William E Jr. | Grant | 232 | 0.00 | $ 0.00 |
| May 28, 2025 | Lowe LeAngela W. | Grant | 33 | 0.00 | $ 0.00 |
| May 9, 2025 | Lamps Mark F. | Open Market Sale | 1000 | 69.16 | $ 69,160.00 |
| Feb 28, 2025 | Edwards Barbara Joanne | Grant | 14 | 0.00 | $ 0.00 |
| Feb 28, 2025 | Waltz William E Jr. | Grant | 243 | 0.00 | $ 0.00 |
| Feb 28, 2025 | MUSE SCOTT H | Grant | 129 | 0.00 | $ 0.00 |
| Feb 28, 2025 | Kelly Daniel S | Grant | 36 | 0.00 | $ 0.00 |
| Feb 28, 2025 | Pregenzer John W | Grant | 89 | 0.00 | $ 0.00 |
| Feb 28, 2025 | Zeffiro A Mark | Grant | 67 | 0.00 | $ 0.00 |
| Feb 28, 2025 | Alvey James William | Grant | 22 | 0.00 | $ 0.00 |
| Feb 28, 2025 | Johnson Betty R. | Grant | 51 | 0.00 | $ 0.00 |
| Feb 28, 2025 | Deitzer John Michael | Grant | 32 | 0.00 | $ 0.00 |
| Feb 28, 2025 | James Wilbert W Jr | Grant | 84 | 0.00 | $ 0.00 |
| Feb 28, 2025 | Lowe LeAngela W. | Grant | 34 | 0.00 | $ 0.00 |
| Feb 28, 2025 | SCHROCK MICHAEL V | Grant | 9 | 0.00 | $ 0.00 |
| Feb 28, 2025 | Isbell Jeri L | Grant | 138 | 0.00 | $ 0.00 |
| Feb 28, 2025 | Kershaw Justin A | Grant | 92 | 0.00 | $ 0.00 |
| Feb 28, 2025 | Lamps Mark F. | Grant | 47 | 0.00 | $ 0.00 |
| Feb 20, 2025 | Waltz William E Jr. | Other Disposition | 22500 | 0.00 | $ 0.00 |
| Feb 10, 2025 | Lamps Mark F. | Open Market Sale | 500 | 65.00 | $ 32,500.00 |
| Feb 1, 2025 | Pregenzer John W | Grant | 7367 | 0.00 | $ 0.00 |
| Jan 30, 2025 | Edwards Barbara Joanne | Grant | 1795 | 0.00 | $ 0.00 |
| Jan 30, 2025 | Isbell Jeri L | Grant | 1795 | 0.00 | $ 0.00 |
| Jan 30, 2025 | MUSE SCOTT H | Grant | 1795 | 0.00 | $ 0.00 |
| Jan 30, 2025 | James Wilbert W Jr | Grant | 1795 | 0.00 | $ 0.00 |
| Jan 30, 2025 | Johnson Betty R. | Grant | 1795 | 0.00 | $ 0.00 |
| Jan 30, 2025 | Kershaw Justin A | Grant | 1795 | 0.00 | $ 0.00 |
| Jan 30, 2025 | Zeffiro A Mark | Grant | 1795 | 0.00 | $ 0.00 |
| Jan 30, 2025 | SCHROCK MICHAEL V | Grant | 1795 | 0.00 | $ 0.00 |