AtkoreATKR
13F holders, Q4 2025 (December 31)At the end of Q4 2025, 307 institutions reported holding Atkore Inc. (ATKR) in their 13F filings, up 9 from Q3 2025. 50 opened new positions and 48 sold out. The largest holders were Vanguard Group Inc. ($230.0M), Gates Capital Management, Inc. ($172.9M) and BlackRock, Inc. ($161.6M). 7 famous investors held it, including Ken Griffin (0.0% of Citadel Advisors's portfolio), David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio) and Joel Greenblatt (0.0% of Gotham Asset Management's portfolio).
- Company
- Atkore Inc.
- CUSIP
- 047649108
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 50 | $150.9M |
| Exits | 48 | $65.4M |
All 13F filers, Q3 2025 → Q4 2025: 4,635,659 shares bought and 5,112,110 shares sold, net −476,451 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 307 holders
| Vanguard Group Inc. | 0.00% | Add +0.1% | 3,635,940 | $230.0M |
| Gates Capital Management, Inc. | 6.02% | Reduce -7.2% | 2,733,147 | $172.9M |
| BlackRock, Inc. | 0.00% | Reduce -2.1% | 2,555,705 | $161.6M |
| First Trust Advisors LP | 0.06% | Add +18.7% | 1,385,741 | $87.6M |
| American Century Companies Inc. | 0.04% | Add +8.2% | 1,253,549 | $79.3M |
| Dimensional Fund Advisors LP | 0.01% | Add +9.1% | 1,130,477 | $71.5M |
| LSV Asset Management | 0.13% | Add +5.8% | 960,450 | $60.7M |
| State Street Corp. | 0.00% | Reduce -0.9% | 827,521 | $52.3M |
| Coliseum Capital Management, LLC | 4.19% | New | 809,305 | $51.2M |
| Geode Capital Management, LLC | 0.00% | Add +0.2% | 802,214 | $50.7M |
| Earnest Partners LLC | 0.21% | New | 783,738 | $49.6M |
| Harding Loevner LP | 0.41% | Reduce -18.2% | 732,753 | $46.3M |
| Hill City Capital, LP | 1.74% | No change | 728,206 | $46.1M |
| Arrowstreet Capital, Limited Partnership | 0.03% | Add +64.9% | 704,668 | $44.6M |
| Victory Capital Management Inc. | 0.02% | Reduce -51.0% | 492,316 | $31.1M |
| Bank of America Corp. | 0.00% | Add +28.7% | 419,685 | $26.5M |
| London Co. of Virginia | 0.15% | Reduce -4.3% | 411,729 | $26.0M |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -10.4% | 410,971 | $26.0M |
| JPMorgan Chase & Co. | 0.00% | Add +34.2% | 397,146 | $25.1M |
| Morgan Stanley | 0.00% | Add +19.1% | 396,507 | $25.1M |
| Gendell Jeffrey L | 0.43% | Reduce -7.4% | 387,201 | $24.5M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -37.0% | 383,841 | $24.3M |
| Northern Trust Corp. | 0.00% | Reduce -6.5% | 363,649 | $23.0M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.03% | Add +2.4% | 351,287 | $22.2M |
| New York State Common Retirement Fund | 0.03% | Add +1166.1% | 345,828 | $21.9M |
| Canada Pension Plan Investment Board | 0.01% | Add +4.0% | 329,100 | $20.8M |
| Jacobs Levy Equity Management, Inc. | 0.08% | Reduce -4.3% | 323,719 | $20.5M |
| Adage Capital Partners Gp, L.L.C. | 0.03% | New | 297,000 | $18.8M |
| Swedbank AB | 0.02% | No change | 296,206 | $18.7M |
| Bank of New York Mellon Corp | 0.00% | Add +0.1% | 235,771 | $14.9M |
| Bridgeway Capital Management, LLC | 0.31% | Reduce -8.4% | 231,611 | $14.6M |
| Two Sigma Investments, LP | 0.02% | Add +21.2% | 219,331 | $13.9M |
| Sei Investments Co. | 0.01% | Add +756.8% | 205,918 | $13.0M |
| Wells Fargo & Company | 0.00% | Add +102.9% | 201,588 | $12.8M |
| Nuveen, LLC | 0.00% | Reduce -4.3% | 193,517 | $12.2M |
| Jane Street Group, LLC | 0.01% | Add +102.9% | 193,444 | $12.2M |
| Voloridge Investment Management, LLC | 0.04% | Reduce -23.9% | 192,810 | $12.2M |
| Wellington Management Group LLP | 0.00% | Reduce -12.0% | 188,262 | $11.9M |
| Pacer Advisors, Inc. | 0.03% | Reduce -8.7% | 178,188 | $11.3M |
| Allspring Global Investments Holdings, LLC | 0.02% | Reduce -76.7% | 162,343 | $10.5M |
| Hotchkis & Wiley Capital Management LLC | 0.03% | Reduce -6.5% | 155,724 | $9.8M |
| Federated Hermes, Inc. | 0.02% | Add +27.7% | 154,541 | $9.8M |
| Citadel Advisors | 0.01% | Add +49.9% | 147,661 | $9.3M |
| DNB Asset Management AS | 0.03% | Add +4.9% | 146,184 | $9.2M |
| ExodusPoint Capital Management, LP | 0.09% | New | 124,624 | $7.9M |
| D. E. Shaw & Co. | 0.01% | Reduce -25.2% | 113,145 | $7.2M |
| Invesco Ltd. | 0.00% | Add +17.6% | 103,765 | $6.6M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Reduce -1.4% | 101,372 | $6.4M |
| Nordea Investment Management AB | 0.01% | Reduce -12.6% | 97,609 | $6.2M |
| Commonwealth of Pennsylvania Public School Empls Retrmt SYS | 0.03% | No change | 94,000 | $5.9M |
| North Growth Management Ltd. | 0.93% | Add +1.1% | 94,000 | $5.9M |
| Norges Bank | 0.00% | — | 89,623 | $5.7M |
| Ameriprise Financial Inc. | 0.00% | Add +0.0% | 85,928 | $5.4M |
| Qube Research & Technologies Ltd | 0.01% | Add +53.5% | 85,170 | $5.4M |
| Rock Point Advisors, LLC | 1.35% | Reduce -21.7% | 85,002 | $5.4M |
| Russell Investments Group, Ltd. | 0.01% | Reduce -0.5% | 83,744 | $5.3M |
| Hudson Bay Capital Management LP | 0.03% | New | 81,490 | $5.2M |
| Kestrel Investment Management Corp. | 2.68% | Reduce -3.5% | 74,650 | $4.7M |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.01% | Reduce -0.3% | 73,456 | $4.6M |
| DekaBank Deutsche Girozentrale | 0.01% | No change | 22,580 | $4.5M |
| Balyasny Asset Management L.P. | 0.01% | Reduce -32.1% | 68,423 | $4.3M |
| Two Sigma Advisers, LP | 0.01% | Add +60.6% | 67,300 | $4.3M |
| Swiss National Bank | 0.00% | Add +1.7% | 66,400 | $4.2M |
| Deutsche Bank AG | 0.00% | Reduce -71.6% | 65,994 | $4.2M |
| Thompson Siegel & Walmsley LLC | 0.07% | Reduce -54.6% | 65,458 | $4.1M |
| Envestnet Asset Management Inc. | 0.00% | Add +128.0% | 64,517 | $4.1M |
| Healthcare of Ontario Pension Plan Trust Fund | 0.01% | Add +84.8% | 63,000 | $4.0M |
| Allianz SE | 0.05% | No change | 62,273 | $3.9M |
| Barclays PLC | 0.00% | Add +10.6% | 61,865 | $3.9M |
| BNP Paribas Financial Markets | 0.00% | Reduce -27.6% | 61,643 | $3.9M |
| Man Group plc | 0.01% | Add +140.9% | 61,024 | $3.9M |
| Nomura Asset Management International Inc. | 0.01% | — | 60,462 | $3.8M |
| Denali Advisors LLC | 0.39% | Add +3.8% | 55,000 | $3.5M |
| O'shaughnessy Asset Management, LLC | 0.02% | Add +33.5% | 54,721 | $3.5M |
| EDENTREE ASSET MANAGEMENT Ltd | 1.06% | Reduce -16.6% | 54,550 | $3.4M |
| UBS Group AG | 0.00% | Reduce -78.7% | 50,716 | $3.2M |
| Raymond James Financial Inc. | 0.00% | Reduce -24.9% | 50,661 | $3.2M |
| AQR Capital Management | 0.00% | Reduce -9.0% | 49,668 | $3.1M |
| CacheTech Inc. | 0.55% | Add +6.1% | 47,076 | $3.0M |
| Marshall Wace, LLP | 0.00% | Reduce -69.0% | 47,051 | $3.0M |
| Walleye Capital LLC | 0.02% | Add +724.6% | 46,755 | $3.0M |
| Rhumbline Advisers | 0.00% | Reduce -14.7% | 44,506 | $2.8M |
| CastleKnight Management LP | 0.15% | No change | 42,200 | $2.7M |
| Adams Wealth Management | 0.55% | Add +0.5% | 40,726 | $2.6M |
| Willis Investment Counsel | 0.13% | Add +237.7% | 39,351 | $2.5M |
| Legal & General Group Plc | 0.00% | Reduce -4.3% | 36,544 | $2.3M |
| Allianz Asset Management GmbH | 0.00% | Reduce -3.3% | 36,438 | $2.3M |
| Isthmus Partners, LLC | 0.25% | Add +4.0% | 36,232 | $2.3M |
| Alliancebernstein L.P. | 0.00% | Reduce -10.9% | 35,060 | $2.2M |
| Millennium Management | 0.00% | Reduce -37.8% | 33,230 | $2.1M |
| CSM Advisors, LLC | 0.06% | New | 33,012 | $2.1M |
| T. Rowe Price Associates Inc. | 0.00% | Reduce -7.4% | 32,783 | $2.1M |
| SG Americas Securities, LLC | 0.00% | Add +657.2% | 32,023 | $2.0M |
| California State Teachers Retirement System | 0.00% | Add +2.4% | 31,874 | $2.0M |
| Caxton Associates LLP | 0.04% | New | 31,520 | $2.0M |
| OMERS ADMINISTRATION Corp | 0.01% | Add +10.8% | 31,451 | $2.0M |
| Franklin Resources Inc. | 0.00% | Add +2538.1% | 31,420 | $2.0M |
| Teacher Retirement System of Texas | 0.01% | Add +1.6% | 31,199 | $2.0M |
| Susquehanna International Group, LLP | 0.00% | Reduce -15.5% | 29,749 | $1.9M |
| Mitsubishi UFJ Trust & Banking Corp | 0.00% | Reduce -19.1% | 28,896 | $1.8M |
"% of holder's portfolio" is ATKR's weight in each manager's 13F, not the share of Atkore Inc. the manager owns.