As of March 23, 2026, Atkore's top three insider holders are William E Jr. Waltz (President And Ceo, 136.14K shares), John W Pregenzer (Coo President, Electrical, 61.24K shares), Mark F. Lamps (Pres. Safety Infrastructure, 36.05K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| William E Jr. Waltz | President And Ceo | 136,139 | 0 | 03 Mar, 2026 |
| John W Pregenzer | Coo President, Electrical | 61,237 | 0 | 03 Mar, 2026 |
| Mark F. Lamps | Pres. Safety Infrastructure | 36,049 | 0 | 03 Mar, 2026 |
| Leangela W. Lowe | Vp, Chief Hr Officer | 35,986 | 0 | 03 Mar, 2026 |
| Daniel S Kelly | Vp, General Counsel And Sec. | 32,589 | 0 | 03 Mar, 2026 |
| Scott H Muse | 32,522 | 0 | 03 Mar, 2026 | |
| David Paul Johnson | Vice President And Cfo | 32,471 | 0 | 04 Mar, 2024 |
| Jeri L Isbell | 30,448 | 0 | 03 Mar, 2026 | |
| A Mark Zeffiro | 23,891 | 0 | 03 Mar, 2026 | |
| William E Jr. Waltz | President And Ceo | 0 | 23,836 | 21 Feb, 2025 |
| William Vanarsdale | 23,342 | 0 | 27 Jan, 2022 | |
| Michael V Schrock | 22,170 | 0 | 03 Mar, 2026 | |
| Justin A Kershaw | 21,409 | 0 | 03 Mar, 2026 | |
| Betty R. Wynn | 20,557 | 0 | 03 Mar, 2026 | |
| Wilbert W Jr James | 20,362 | 0 | 03 Mar, 2026 | |
| John Michael Deitzer | Vp, Cfo | 18,827 | 0 | 03 Mar, 2026 |
| Barbara Joanne Edwards | 6,061 | 0 | 03 Mar, 2026 | |
| James William Alvey | Chief Accounting Officer | 5,430 | 0 | 03 Mar, 2026 |
| Franklin S. Jr. Edmonds | 2,822 | 0 | 03 Mar, 2026 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 27 Feb, 2026 | Daniel S Kelly | Common Stock | A | 52 | $0.00 | 32,589 | D | A |
| 27 Feb, 2026 | William E Jr. Waltz | Common Stock | A | 346 | $0.00 | 136,139 | D | A |
| 27 Feb, 2026 | John Michael Deitzer | Common Stock | A | 68 | $0.00 | 18,827 | D | A |
| 27 Feb, 2026 | A Mark Zeffiro | Common Stock | A | 69 | $0.00 | 23,891 | D | A |
| 27 Feb, 2026 | Franklin S. Jr. Edmonds | Common Stock | A | 14 | $0.00 | 2,822 | D | A |
| 27 Feb, 2026 | Mark F. Lamps | Common Stock | A | 68 | $0.00 | 36,049 | D | A |
| 27 Feb, 2026 | John W Pregenzer | Common Stock | A | 118 | $0.00 | 61,237 | D | A |
| 27 Feb, 2026 | Scott H Muse | Common Stock | A | 136 | $0.00 | 32,522 | D | A |
| 27 Feb, 2026 | Michael V Schrock | Common Stock | A | 12 | $0.00 | 22,170 | D | A |
| 27 Feb, 2026 | Wilbert W Jr James | Common Stock | A | 87 | $0.00 | 20,362 | D | A |
| 27 Feb, 2026 | Barbara Joanne Edwards | Common Stock | A | 26 | $0.00 | 6,061 | D | A |
| 27 Feb, 2026 | Leangela W. Lowe | Common Stock | A | 52 | $0.00 | 35,986 | D | A |
| 27 Feb, 2026 | James William Alvey | Common Stock | A | 13 | $0.00 | 5,430 | D | A |
| 27 Feb, 2026 | Justin A Kershaw | Common Stock | A | 94 | $0.00 | 21,409 | D | A |
| 27 Feb, 2026 | Jeri L Isbell | Common Stock | A | 140 | $0.00 | 30,448 | D | A |
| 27 Feb, 2026 | Betty R. Wynn | Common Stock | A | 39 | $0.00 | 20,557 | D | A |
| 17 Feb, 2026 | Mark F. Lamps | Common Stock | D | 1,000 | $65.78 | 35,982 | D | S |
| 02 Feb, 2026 | John W Pregenzer | Common Stock | D | 1,164 | $69.45 | 61,119 | D | F |
| 29 Jan, 2026 | A Mark Zeffiro | Common Stock | A | 2,275 | $0.00 | 23,822 | D | A |
| 29 Jan, 2026 | Michael V Schrock | Common Stock | A | 2,275 | $0.00 | 22,159 | D | A |