AtkoreATKR
13F holders, Q1 2026 (March 31)At the end of Q1 2026, 303 institutions reported holding Atkore Inc. (ATKR) in their 13F filings, down 4 from Q4 2025. 41 opened new positions and 46 sold out. The largest holders were Gates Capital Management, Inc. ($158.2M), BlackRock, Inc. ($154.7M) and Vanguard Portfolio Management LLC ($123.1M). 7 famous investors held it, including David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio), Ken Griffin (0.0% of Citadel Advisors's portfolio) and Mario Gabelli (0.0% of GAMCO Investors's portfolio).
- Company
- Atkore Inc.
- CUSIP
- 047649108
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 41 | $51.3M |
| Exits | 46 | $78.0M |
All 13F filers, Q4 2025 → Q1 2026: 2,926,005 shares bought and 2,922,831 shares sold, net +3,174 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 303 holders
| Gates Capital Management, Inc. | 5.46% | Reduce -1.7% | 2,685,718 | $158.2M |
| BlackRock, Inc. | 0.00% | Add +2.8% | 2,626,791 | $154.7M |
| Vanguard Portfolio Management LLC | 0.01% | — | 2,090,469 | $123.1M |
| Vanguard Capital Management LLC | 0.00% | — | 1,515,110 | $89.3M |
| American Century Companies Inc. | 0.04% | Add +14.8% | 1,439,116 | $84.8M |
| Dimensional Fund Advisors LP | 0.01% | Add +8.6% | 1,227,991 | $72.3M |
| First Trust Advisors LP | 0.05% | Reduce -11.5% | 1,226,840 | $72.3M |
| LSV Asset Management | 0.13% | Add +9.5% | 1,051,861 | $62.0M |
| Coliseum Capital Management, LLC | 4.57% | Add +17.0% | 947,070 | $55.8M |
| Geode Capital Management, LLC | 0.00% | Add +6.5% | 854,731 | $50.4M |
| State Street Corp. | 0.00% | Add +0.9% | 835,156 | $49.2M |
| Earnest Partners LLC | 0.19% | Reduce -0.7% | 777,905 | $45.8M |
| Hill City Capital, LP | 1.53% | No change | 728,206 | $42.9M |
| Harding Loevner LP | 0.43% | Reduce -3.8% | 704,862 | $41.5M |
| Arrowstreet Capital, Limited Partnership | 0.02% | Reduce -0.9% | 698,134 | $41.1M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.04% | Add +51.7% | 532,992 | $31.4M |
| Bank of America Corp. | 0.00% | Add +10.2% | 462,278 | $27.2M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +1.6% | 417,644 | $24.6M |
| Gendell Jeffrey L | 0.32% | Add +3.4% | 400,214 | $23.6M |
| Victory Capital Management Inc. | 0.01% | Reduce -23.0% | 379,274 | $22.3M |
| London Co. of Virginia | 0.14% | Reduce -8.3% | 377,623 | $22.2M |
| Oslo Pensjonsforsikring AS | 3.46% | — | 377,000 | $22.2M |
| Two Sigma Investments, LP | 0.02% | Add +60.9% | 353,000 | $20.8M |
| New York State Common Retirement Fund | 0.03% | Reduce -0.7% | 343,515 | $20.2M |
| Jacobs Levy Equity Management, Inc. | 0.09% | Add +6.0% | 343,289 | $20.2M |
| Morgan Stanley | 0.00% | Reduce -14.7% | 338,300 | $19.9M |
| Northern Trust Corp. | 0.00% | Reduce -11.6% | 321,363 | $18.9M |
| Canyon Capital Advisors LLC | 2.33% | New | 305,000 | $18.0M |
| Swedbank AB | 0.02% | No change | 296,206 | $17.4M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -28.1% | 276,092 | $16.3M |
| Canada Pension Plan Investment Board | 0.01% | Reduce -24.9% | 247,162 | $14.6M |
| JPMorgan Chase & Co. | 0.00% | Reduce -37.0% | 250,308 | $14.6M |
| Bridgeway Capital Management, LLC | 0.29% | Add +5.4% | 244,183 | $14.4M |
| Bank of New York Mellon Corp | 0.00% | Add +0.1% | 235,919 | $13.9M |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 218,268 | $12.9M |
| Sei Investments Co. | 0.01% | Add +1.2% | 208,454 | $12.3M |
| Nuveen, LLC | 0.00% | Add +0.2% | 193,913 | $11.4M |
| Wells Fargo & Company | 0.00% | Reduce -11.7% | 178,047 | $10.5M |
| DNB Asset Management AS | 0.04% | Add +13.9% | 166,582 | $9.8M |
| Federated Hermes, Inc. | 0.02% | Add +3.3% | 159,628 | $9.4M |
| Barclays PLC | 0.00% | Add +156.7% | 158,793 | $9.4M |
| Deutsche Bank AG | 0.00% | Add +136.6% | 156,118 | $9.2M |
| Hotchkis & Wiley Capital Management LLC | 0.03% | Reduce -1.4% | 153,486 | $9.0M |
| Man Group plc | 0.02% | Add +146.3% | 150,330 | $8.9M |
| Qube Research & Technologies Ltd | 0.01% | Add +72.7% | 147,045 | $8.7M |
| Pacer Advisors, Inc. | 0.02% | Reduce -23.6% | 136,207 | $8.0M |
| Empowered Funds, LLC | 0.05% | New | 133,516 | $7.9M |
| Healthcare of Ontario Pension Plan Trust Fund | 0.01% | Add +99.7% | 125,800 | $7.4M |
| Allianz Asset Management GmbH | 0.01% | Add +234.6% | 121,937 | $7.2M |
| PDT Partners, LLC | 0.41% | Add +3039.7% | 116,168 | $6.8M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +4.8% | 106,270 | $6.3M |
| Woodline Partners LP | 0.02% | New | 102,081 | $6.0M |
| Invesco Ltd. | 0.00% | Reduce -9.1% | 94,349 | $5.6M |
| Russell Investments Group, Ltd. | 0.01% | Add +12.6% | 94,309 | $5.6M |
| Nordea Investment Management AB | 0.01% | Reduce -4.2% | 93,483 | $5.4M |
| Rock Point Advisors, LLC | 1.37% | Add +0.8% | 85,685 | $5.0M |
| Voloridge Investment Management, LLC | 0.02% | Reduce -55.6% | 85,587 | $5.0M |
| Allspring Global Investments Holdings, LLC | 0.01% | Reduce -52.7% | 76,830 | $4.6M |
| UBS Group AG | 0.00% | Add +52.3% | 77,232 | $4.5M |
| BNP Paribas Financial Markets | 0.00% | Add +23.7% | 76,228 | $4.5M |
| Nomura Asset Management International Inc. | 0.01% | Add +22.9% | 74,282 | $4.4M |
| Kestrel Investment Management Corp. | 2.61% | Reduce -0.7% | 74,150 | $4.4M |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.01% | No change | 73,456 | $4.3M |
| Envestnet Asset Management Inc. | 0.00% | Add +12.7% | 72,701 | $4.3M |
| Ameriprise Financial Inc. | 0.00% | Reduce -17.9% | 70,514 | $4.2M |
| Martingale Asset Management L P | 0.10% | Add +220.7% | 69,738 | $4.1M |
| Swiss National Bank | 0.00% | No change | 66,400 | $3.9M |
| Citadel Advisors | 0.00% | Reduce -56.1% | 64,743 | $3.8M |
| Prudential Financial Inc. | 0.00% | Add +143.4% | 64,190 | $3.8M |
| Allianz SE | 0.04% | No change | 62,273 | $3.7M |
| D. E. Shaw & Co. | 0.00% | Reduce -45.9% | 61,270 | $3.6M |
| Raymond James Financial Inc. | 0.00% | Add +20.1% | 60,821 | $3.6M |
| Denali Advisors LLC | 0.36% | No change | 55,000 | $3.2M |
| EDENTREE ASSET MANAGEMENT Ltd | 0.97% | No change | 54,550 | $3.2M |
| AQR Capital Management | 0.00% | Add +2.5% | 50,926 | $3.0M |
| Jane Street Group, LLC | 0.00% | Reduce -74.8% | 48,689 | $2.9M |
| O'shaughnessy Asset Management, LLC | 0.01% | Reduce -11.2% | 48,593 | $2.9M |
| Balyasny Asset Management L.P. | 0.01% | Reduce -31.8% | 46,663 | $2.7M |
| Rhumbline Advisers | 0.00% | Reduce -2.0% | 43,619 | $2.6M |
| CastleKnight Management LP | 0.12% | No change | 42,200 | $2.5M |
| Susquehanna International Group, LLP | 0.00% | Add +35.9% | 40,434 | $2.4M |
| California State Teachers Retirement System | 0.00% | Add +24.6% | 39,703 | $2.3M |
| Oppenheimer Asset Management Inc. | 0.03% | New | 39,241 | $2.3M |
| Millennium Management | 0.00% | Add +18.0% | 39,226 | $2.3M |
| SG Americas Securities, LLC | 0.00% | Add +22.4% | 39,195 | $2.3M |
| T. Rowe Price Associates Inc. | 0.00% | Add +17.8% | 38,607 | $2.3M |
| Alliancebernstein L.P. | 0.00% | No change | 35,060 | $2.2M |
| Isthmus Partners, LLC | 0.23% | Add +1.6% | 36,814 | $2.2M |
| CSM Advisors, LLC | 0.05% | Add +9.7% | 36,229 | $2.1M |
| OMERS ADMINISTRATION Corp | 0.01% | Add +11.1% | 34,951 | $2.1M |
| Hudson Bay Capital Management LP | 0.01% | Reduce -57.1% | 34,946 | $2.1M |
| State of New Jersey Common Pension Fund D | 0.01% | New | 33,712 | $2.0M |
| Lazard Asset Management LLC | 0.00% | Add +572.2% | 33,496 | $2.0M |
| Tidal Investments LLC | 0.01% | Add +182.7% | 31,931 | $1.9M |
| Legal & General Group Plc | 0.00% | Reduce -12.8% | 31,858 | $1.9M |
| VANGUARD ASSET MANAGEMENT, Ltd | 0.00% | — | 30,988 | $1.8M |
| Brevan Howard Capital Management LP | 0.02% | New | 30,561 | $1.8M |
| Franklin Resources Inc. | 0.00% | Reduce -5.2% | 29,787 | $1.8M |
| Vanguard Global Advisers, LLC | 0.00% | — | 28,204 | $1.7M |
| Kerrisdale Advisers, LLC | 0.63% | No change | 28,074 | $1.7M |
"% of holder's portfolio" is ATKR's weight in each manager's 13F, not the share of Atkore Inc. the manager owns.