Atkore
Makes conduit, cable, framing, and related systems for electrical and infrastructure projects.
$93.51
After-hours close−0.09 (−0.10%)
At close$93.60(−0.06%)
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Breakdown13F · Form 4
Institutions 107.32%Insiders 1.55%
A 13F quarter can total more than the shares outstanding — sub-advisers file the same block twice, and a filer's own share count can be a quarter stale. No split is drawn from it.
Shares outstanding 33.77M · Float 30.69M · 90.9% free float
Institutions13F, as of Jun 30, 2026
337 holders · 36.24M shares · 68 new positions · 187 increased · 87 reduced · 44 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 3.12M | 9.23% | +489.4K | Aug 7, 2026 |
| Vanguard Portfolio Management LLC | 2.12M | 6.29% | +31.9K | Aug 13, 2026 |
| American Century Companies Inc | 1.78M | 5.26% | +336.0K | Aug 12, 2026 |
| Gates Capital Management, Inc. | 1.71M | 5.06% | −975.5K | Aug 14, 2026 |
| Vanguard Capital Management LLC | 1.52M | 4.51% | +9.1K | Aug 13, 2026 |
| Dimensional Fund Advisors LP | 1.30M | 3.85% | +71.8K | Aug 11, 2026 |
| LSV Asset Management | 1.09M | 3.24% | +41.7K | Aug 6, 2026 |
| State Street Corp | 906.4K | 2.68% | +71.3K | Aug 7, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Gates Capital Management, L.P. | 7.80% | 2.63M | 13G | Aug 14, 2025 ↗ |
| BlackRock, Inc. | 7.30% | 2.46M | 13G | Oct 17, 2025 ↗ |
| Vanguard Portfolio Management | 6.27% | 2.12M | 13G | Apr 28, 2026 ↗ |
| Stowers Institute for Medical Researchincl. American Century Companies, Inc., American Century Investment Management, Inc. +1 more | 5.30% | 1.78M | 13G | Aug 14, 2026 ↗ |
| Vanguard Capital Management | 5.25% | 1.77M | 13G | Apr 29, 2026 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| William E. Jr. Waltz | director, officer: President and CEO | 160.2K | 0.47% | Jun 2, 2026 |
| John W. Pregenzer | officer: COO & President, Electrical | 61.3K | 0.18% | Jun 2, 2026 |
| LeAngela W. Lowe | officer: VP, Chief HR Officer | 36.0K | 0.11% | Jun 2, 2026 |
| Mark F. Lamps | officer: Pres. Safety & Infrastructure | 35.8K | 0.11% | Aug 10, 2026 |
| Daniel S. Kelly | officer: VP, General Counsel and Sec. | 32.6K | 0.10% | Jun 2, 2026 |
| Scott H. Muse | director | 32.6K | 0.10% | Jun 2, 2026 |
| Jeri L. Isbell | director | 30.6K | 0.09% | Jun 2, 2026 |
| A. Mark Zeffiro | director | 23.9K | 0.07% | Jun 2, 2026 |
| Michael V. Schrock | director | 22.2K | 0.07% | Jun 2, 2026 |
| Betty R. Wynn | director | 20.6K | 0.06% | Jun 2, 2026 |
7 people have not refiled in the last 18 months (590.4K shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Aug 10, 2026 | Mark F. Lampsofficer: Pres. Safety & Infrastructure | Sale | 300 | $93.75 | 35,803 |
| May 8, 2026 | Justin A. Kershawdirector | Sale | 2,799 | $73.67 | 18,610 |
| May 8, 2026 | Wilbert W. Jr Jamesdirector | Sale | 3,299 | $73.61 | 17,063 |
| Feb 17, 2026 | Mark F. Lampsofficer: Pres. Safety & Infrastructure | Sale | 1,000 | $65.78 | 35,982 |
| Nov 17, 2025 | Mark F. Lampsofficer: Pres. Safety & Infrastructure | Sale | 1,000 | $64.75 | 29,923 |
CongressHouse and Senate disclosures
Not reported.