Atkore International Group Inc (ATKR)
Who owns Atkore International Group Inc (ATKR)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 90.9% of the shares are freely tradable; institutional investors hold 98.4%.
Ownership Structure
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard Group Inc | 10.77 | 3,635,940 | +0.1 | 12/31/2025 |
| Gates Capital Management Inc | 7.95 | 2,685,718 | -1.7 | 03/31/2026 |
| BlackRock Inc | 7.78 | 2,626,791 | +2.8 | 03/31/2026 |
| Vanguard Portfolio Management, LLC | 6.19 | 2,090,469 | +0.0 | 03/31/2026 |
| Vanguard Capital Management, LLC | 4.49 | 1,515,110 | +0.0 | 03/31/2026 |
| American Century Companies Inc | 4.26 | 1,439,116 | +14.8 | 03/31/2026 |
| Dimensional Fund Advisors, Inc. | 3.64 | 1,227,991 | +8.6 | 03/31/2026 |
| First Trust Advisors L.P. | 3.63 | 1,226,840 | -11.5 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Avantis US Small Cap Value ETF | 4.10 | 1,383,751 | +0.1 | 05/30/2026 |
| Vanguard Total Stock Mkt Idx Inv | 3.21 | 1,082,581 | +0.4 | 04/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: July 31, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.