🕵️ Atkore Inc. ($ATKR)
SEC insider & ownership activity, last 12 months · CIK 1666138 · every row links its SEC filing
Over the last 12 months insiders sold $608K with no open-market buying against it. Wilbert W. James Jr. sold $243K in discretionary trades (May). No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 3 sellers, $608K (5 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Wilbert W. James Jr. | 0 | – | 1 | $243K | May 8, 2026 |
| Justin A. Kershaw | 0 | – | 1 | $206K | May 8, 2026 |
| Mark F. Lamps | 0 | – | 3 | $159K | Aug 10, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| BlackRock, Inc. | 7.3% | 13G | Oct 17, 2025 | filing ↗ | |
| Vanguard Portfolio Management | 6.3% | 13G | Apr 28, 2026 | filing ↗ | |
| American Century Investment Management, Inc. | 5.3% | 13G | Aug 14, 2026 | filing ↗ | |
| American Century Companies, Inc. | 5.3% | 13G | Aug 14, 2026 | filing ↗ | |
| Stowers Institute for Medical Research | 5.3% | 13G | Aug 14, 2026 | filing ↗ | |
| Vanguard Capital Management | 5.2% | 13G | Apr 29, 2026 | filing ↗ | |
| Gates Capital Management, L.P. | 5.1% | 13G | Aug 14, 2026 | filing ↗ | |
| Gates Capital Management GP, LLC | 5.1% | 13G | Aug 14, 2026 | filing ↗ | |
| Gates Capital Management, Inc. | 5.1% | 13G | Aug 14, 2026 | filing ↗ | |
| Jeffrey L. Gates | 5.1% | 13G | Aug 14, 2026 | filing ↗ | |
| American Century ETF Trust | 5.0% | 13G | Aug 14, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Mark Lamps | $28K | Aug 10, 2026 | filing ↗ |
| Justin A. Kershaw | $206K | May 8, 2026 | filing ↗ |
| Wilbert W. James Jr. | $243K | May 8, 2026 | filing ↗ |
| Mark Lamps | $67K | Feb 17, 2026 | filing ↗ |
| Mark Lamps | $65K | Nov 17, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Other events (8.01) | Sep 15, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 15, 2026 | filing ↗ |
| Material agreement (1.01) | Aug 3, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Aug 3, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 3, 2026 | filing ↗ |
| Earnings (2.02) | Aug 3, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 3, 2026 | filing ↗ |
| Material agreement (1.01) | Jun 4, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 4, 2026 | filing ↗ |
| Earnings (2.02) | May 5, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | May 5, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 5, 2026 | filing ↗ |
| Material agreement (1.01) | Apr 29, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 29, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Apr 8, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 8, 2026 | filing ↗ |
| Earnings (2.02) | Feb 3, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Feb 3, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 3, 2026 | filing ↗ |
| Shareholder vote (5.07) | Feb 2, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 2, 2026 | filing ↗ |
| Officer/director changes (5.02) | Dec 2, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 2, 2025 | filing ↗ |
| Material agreement (1.01) | Nov 20, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Nov 20, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 20, 2025 | filing ↗ |
| Earnings (2.02) | Nov 20, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Nov 20, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 20, 2025 | filing ↗ |
| Exit or disposal costs (2.05) | Oct 3, 2025 | filing ↗ |