Atkore (ATKR)
Makes conduit, cable, framing, and related systems for electrical and infrastructure projects.
$94.50
After hours+0.01 (+0.01%)
At close$94.49(+0.02%)
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13F · 13D/G · Form 4
| Institutions | 98.76% | 33.35M shares | |
|---|---|---|---|
| 338 holders · as of Jun 30, 2026 | |||
| Insiders | 1.65% | 558.4K shares | |
| 17 holders · as of Aug 31, 2026 | |||
| Adds to | 100.41% | ||
33.77M company shares as of Sep 22, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing
These groups come from separate filings that can overlap, so they add to 100.41%; nothing is left for Other.
13F, as of Jun 30, 2026
338 holders · 33.35M shares · 68 new positions · 187 increased · 89 reduced · 43 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 | 6.28% | +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 |
13D/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 |
Form 4
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 |
House and Senate disclosures
Not reported.