ATKORE INC (ATKR)
Institutional ownership reported to the SEC as of Q2 2026, across 31 quarters.
315
Reporting holders
$2.5B
Reported value
95.3%
Of shares outstanding
1.2%
Held as options
+26
Holder change
Institutions report 32,170,816 shares against 33,772,550 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end. A figure this high can overstate: where an adviser and a sub-adviser both report the same shares, both are counted.
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| BlackRock, Inc. | $237.0M | 3,116,222 | 0.00% | 8q | +18.6%+$37.2M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $161.4M | 2,122,380 | 0.01% | 2q | +1.5%+$2.4M |
| AMERICAN CENTURY COMPANIES INC | $135.0M | 1,775,158 | 0.06% | 31q | +23.4%+$25.6M |
| Gates Capital Management, Inc. | $130.0M | 1,710,192 | 3.13% | 16q | -36.3%-$74.2M |
| VANGUARD CAPITAL MANAGEMENT LLC | $115.9M | 1,524,252 | 0.00% | 2q | +0.6%+$695.2K |
| Hill City Capital, LP | $110.1M | 1,448,212 | 1.34% | 4q | +98.9%+$54.7M |
| DIMENSIONAL FUND ADVISORS LP | $98.8M | 1,299,786 | 0.02% | 31q | +5.8%+$5.5M |
| STATE STREET CORP | $68.9M | 906,421 | 0.00% | 31q | +8.5%+$5.4M |
| GEODE CAPITAL MANAGEMENT, LLC | $68.6M | 902,486 | 0.00% | 31q | +5.6%+$3.6M |
| EARNEST PARTNERS LLC | $58.7M | 772,294 | 0.21% | 3q | -0.7%-$426.7K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $43.8M | 575,607 | 0.05% | 9q | +8.0%+$3.2M |
| Harding Loevner LP | $43.1M | 567,192 | 0.41% | 9q | -19.5%-$10.5M |
| FIRST TRUST ADVISORS LP | $40.5M | 533,063 | 0.02% | 31q | -56.5%-$52.8M |
| JACOBS LEVY EQUITY MANAGEMENT, INC | $39.5M | 519,275 | 0.14% | 4q | +51.3%+$13.4M |
| JPMORGAN CHASE & CO | $39.2M | 520,864 | 0.00% | 31q | +108.1%+$20.4M |
| Irenic Capital Management LP | $38.6M | 507,613 | 1.85% | 3q | +3531.8%+$37.5M |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $36.7M | 482,239 | 0.02% | 5q | -30.9%-$16.4M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $34.5M | 453,964 | 0.00% | 31q | +8.7%+$2.8M |
| Sixth Street Partners Management Company, L.P. | $34.5M | 453,964 | 0.00% | new | NEW |
| BANK OF AMERICA CORP /DE/ | $33.4M | 438,802 | 0.00% | 31q | -5.1%-$1.8M |
| TWO SIGMA INVESTMENTS, LP | $30.6M | 402,131 | 0.02% | 8q | +13.9%+$3.7M |
| GENDELL JEFFREY L | $30.4M | 400,214 | 0.27% | 8q | HELD |
| LONDON CO OF VIRGINIA | $29.4M | 386,827 | 0.17% | 6q | +2.4%+$699.9K |
| MORGAN STANLEY | $28.8M | 378,566 | 0.00% | 35q | +11.9%+$3.1M |
| Oslo Pensjonsforsikring AS | $28.7M | 377,000 | 3.30% | 2q | HELD |
| VICTORY CAPITAL MANAGEMENT INC | $28.2M | 371,385 | 0.02% | 31q | -2.1%-$599.9K |
| Boston Partners | $27.9M | 367,806 | 0.02% | new | NEW |
| NEW YORK STATE COMMON RETIREMENT FUND | $25.9M | 341,215 | 0.03% | 31q | -0.7%-$174.9K |
| NORTHERN TRUST CORP | $25.5M | 335,441 | 0.00% | 31q | +4.4%+$1.1M |
| Swedbank AB | $22.5M | 296,206 | 0.02% | 10q | HELD |
| GOLDMAN SACHS GROUP INC | $21.9M | 288,586 | 0.00% | 31q | +4.5%+$950.0K |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | $19.2M | 252,429 | 0.34% | 4q | +3.4%+$627.0K |
| Bank of New York Mellon Corp | $18.8M | 247,645 | 0.00% | 31q | +5.0%+$891.6K |
| SEI INVESTMENTS CO | $18.6M | 244,346 | 0.02% | 31q | +17.2%+$2.7M |
| Nuveen, LLC | $18.2M | 238,992 | 0.00% | 6q | +23.2%+$3.4M |
| VANGUARD FIDUCIARY TRUST CO | $17.0M | 223,986 | 0.00% | 2q | +2.6%+$434.8K |
| Empowered Funds, LLC | $15.5M | 204,012 | 0.08% | 2q | +52.8%+$5.4M |
| BARCLAYS PLC | $15.0M | 197,509 | 0.00% | 31q | +24.4%+$2.9M |
| PDT Partners, LLC | $14.5M | 191,253 | 0.76% | 3q | +64.6%+$5.7M |
| FEDERATED HERMES, INC. | $14.0M | 184,141 | 0.02% | 31q | +15.4%+$1.9M |
| Allianz Asset Management GmbH | $13.8M | 181,838 | 0.01% | 31q | +49.1%+$4.6M |
| Qube Research & Technologies Ltd | $13.6M | 178,249 | 0.01% | 22q | +21.2%+$2.4M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $12.0M | 28,858 | 0.00% | 29q | -28.6%-$4.8M |
| JANE STREET GROUP, LLC | $12.0M | 68,185 | 0.00% | 24q | +40.0%+$3.4M |
| WELLS FARGO & COMPANY/MN | $11.9M | 155,867 | 0.00% | 31q | -56.2%-$15.2M |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | $11.5M | 150,669 | 0.02% | 4q | +19.8%+$1.9M |
| D. E. Shaw & Co., Inc. | $11.1M | 145,448 | 0.01% | 18q | +137.4%+$6.4M |
| CANYON CAPITAL ADVISORS LLC | $10.6M | 139,700 | 1.20% | 2q | -54.2%-$12.6M |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | $10.6M | 139,446 | 0.03% | 6q | -9.1%-$1.1M |
| DNB Asset Management AS | $9.9M | 130,833 | 0.03% | 9q | -21.5%-$2.7M |
| Russell Investments Group, Ltd. | $9.5M | 125,124 | 0.01% | 31q | +32.7%+$2.3M |
| Trexquant Investment LP | $8.6M | 113,413 | 0.05% | new | NEW |
| CANADA PENSION PLAN INVESTMENT BOARD | $7.8M | 102,900 | 0.00% | 9q | -58.4%-$11.0M |
| Allspring Global Investments Holdings, LLC | $7.7M | 106,066 | 0.01% | 19q | +38.1%+$2.1M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $7.6M | 100,279 | 0.00% | 14q | -5.6%-$455.6K |
| Man Group plc | $7.5M | 98,582 | 0.01% | 5q | -34.4%-$3.9M |
| Aventail Capital Group, LP | $7.2M | 94,600 | 0.41% | new | NEW |
| Woodline Partners LP | $7.2M | 94,232 | 0.02% | 2q | -7.7%-$596.8K |
| Invesco Ltd. | $7.1M | 93,910 | 0.00% | 31q | HELD |
| NORDEA INVESTMENT MANAGEMENT AB | $6.8M | 89,807 | 0.01% | 22q | -3.9%-$276.3K |
| IMC-Chicago, LLC | $6.7M | options only | 0.00% | 2q | OPTIONS |
| TOWLE & CO | $6.5M | 85,793 | 2.21% | new | NEW |
| BNP PARIBAS FINANCIAL MARKETS | $6.4M | 83,548 | 0.00% | 31q | +9.6%+$556.6K |
| Universal- Beteiligungs- und Servicegesellschaft mbH | $5.7M | 74,805 | 0.01% | 7q | +1.8%+$102.6K |
| KESTREL INVESTMENT MANAGEMENT CORP | $5.6M | 74,150 | 3.07% | 6q | HELD |
| Rock Point Advisors, LLC | $5.5M | 71,688 | 1.33% | 10q | -16.3%-$1.1M |
| AMERIPRISE FINANCIAL INC | $5.4M | 70,553 | 0.00% | 31q | -50.0%-$5.4M |
| MARTINGALE ASSET MANAGEMENT L P | $5.3M | 70,155 | 0.13% | 5q | +0.6%+$31.7K |
| DEAN INVESTMENT ASSOCIATES, LLC | $5.3M | 69,262 | 0.35% | 5q | +779.1%+$4.7M |
| Swiss National Bank | $5.1M | 67,700 | 0.00% | 31q | +2.0%+$98.9K |
| ENVESTNET ASSET MANAGEMENT INC | $5.1M | 66,747 | 0.00% | 26q | -8.2%-$452.7K |
| PRUDENTIAL FINANCIAL INC | $5.0M | 65,330 | 0.01% | 31q | +1.8%+$86.7K |
| Caisse de depot et placement du Quebec | $4.8M | 63,513 | 0.01% | 2q | +159.2%+$3.0M |
| RAYMOND JAMES FINANCIAL INC | $4.4M | 57,742 | 0.00% | 7q | -5.1%-$234.1K |
| Engineers Gate Manager LP | $4.3M | 57,071 | 0.06% | 10q | +723.5%+$3.8M |
| Edgestream Partners, L.P. | $4.3M | 56,665 | 0.13% | new | NEW |
| UBS Group AG | $4.1M | 53,561 | 0.00% | 31q | -30.6%-$1.8M |
| Tidal Investments LLC | $3.9M | 51,660 | 0.01% | 14q | +61.8%+$1.5M |
| XTX Topco Ltd | $3.9M | 50,831 | 0.05% | 3q | +774.9%+$3.4M |
| AQR CAPITAL MANAGEMENT LLC | $3.8M | 50,520 | 0.00% | 31q | -0.8%-$30.9K |
| Point72 Asset Management, L.P. | $3.8M | 49,751 | 0.00% | new | NEW |
| CITADEL ADVISORS LLC | $3.8M | options only | 0.00% | 31q | OPTIONS |
| Defiance ETFs, LLC | $3.7M | 51,660 | 0.05% | 2q | +129.7%+$2.1M |
| RHUMBLINE ADVISERS | $3.5M | 46,500 | 0.00% | 31q | +6.6%+$219.1K |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | $3.4M | 44,800 | 0.01% | 3q | -39.7%-$2.2M |
| ALGERT GLOBAL LLC | $3.3M | 43,510 | 0.04% | new | NEW |
| DENALI ADVISORS LLC | $3.3M | 42,900 | 0.33% | 8q | -22.0%-$920.1K |
| Brevan Howard Capital Management LP | $3.2M | 42,459 | 0.02% | 2q | +38.9%+$904.7K |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC | $3.2M | 41,658 | 0.01% | 31q | -14.3%-$527.3K |
| OPPENHEIMER ASSET MANAGEMENT INC. | $3.0M | 39,010 | 0.03% | 2q | -0.6%-$17.6K |
| ISTHMUS PARTNERS, LLC | $2.9M | 38,120 | 0.28% | 16q | +3.5%+$99.3K |
| DEUTSCHE BANK AG\ | $2.8M | 36,324 | 0.00% | 34q | -76.7%-$9.1M |
| Ausbil Investment Management Ltd | $2.5M | 35,147 | 1.15% | 15q | +219.6%+$1.7M |
| Legal & General Group Plc | $2.5M | 33,144 | 0.00% | 31q | +4.0%+$97.8K |
| VANGUARD ASSET MANAGEMENT, Ltd | $2.4M | 30,988 | 0.00% | 2q | HELD |
| HSBC HOLDINGS PLC | $2.3M | 29,846 | 0.00% | 2q | +60.0%+$844.9K |
| Linden Thomas Advisory Services, LLC | $2.2M | 28,856 | 0.18% | 13q | +12.4%+$241.7K |
| ALLIANCEBERNSTEIN L.P. | $2.2M | 36,560 | 0.00% | 31q | +4.3%+$88.4K |
| CenterBook Partners LP | $2.1M | 28,144 | 0.11% | new | NEW |
| Balyasny Asset Management L.P. | $2.1M | 28,014 | 0.00% | 4q | -40.0%-$1.4M |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-08-14 | 13G | American Century Investment Management, Inc.with 3 co-filers | 5.3% |
| 2026-08-14 | 13G/A | Gates Capital Management, L.P.with 3 co-filers | 5.1% |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 315 | $2.5B | 32,170,816 | 63 | 112 | 81 | 1.2% |
| Q1 2026 | 289 | $1.9B | 31,364,802 | 43 | 97 | 86 | 0.9% |
| Q4 2025 | 287 | $2.0B | 30,631,047 | 45 | 84 | 99 | 1.2% |
| Q3 2025 | 280 | $2.0B | 31,308,395 | 52 | 76 | 109 | 1.6% |
| Q2 2025 | 277 | $2.3B | 31,585,206 | 44 | 97 | 93 | 1.3% |
| Q1 2025 | 276 | $2.0B | 32,171,745 | 40 | 101 | 98 | 1.7% |
| Q4 2024 | 307 | $3.0B | 35,961,877 | 31 | 105 | 110 | 1.5% |
| Q3 2024 | 332 | $3.1B | 35,664,819 | 57 | 120 | 113 | 2.2% |
| Q2 2024 | 403 | $5.2B | 37,582,088 | 56 | 158 | 130 | 1.9% |
| Q1 2024 | 413 | $7.3B | 37,632,582 | 67 | 122 | 151 | 1.8% |
| Q4 2023 | 396 | $6.0B | 37,090,864 | 45 | 149 | 121 | 1.8% |
| Q3 2023 | 365 | $5.3B | 34,987,607 | 32 | 138 | 125 | 2.0% |
| Q2 2023 | 359 | $5.6B | 34,789,929 | 48 | 123 | 130 | 3.0% |
| Q1 2023 | 340 | $5.1B | 36,164,899 | 64 | 110 | 125 | 2.1% |
| Q4 2022 | 304 | $3.6B | 30,869,864 | 82 | 65 | 106 | 2.4% |
| Q3 2022 | 298 | $3.3B | 41,344,993 | 26 | 105 | 116 | 1.4% |
| Q2 2022 | 319 | $3.4B | 40,872,283 | 43 | 104 | 129 | 1.4% |
| Q1 2022 | 322 | $4.2B | 42,119,870 | 48 | 100 | 129 | 0.9% |
| Q4 2021 | 314 | $4.9B | 43,087,601 | 55 | 96 | 112 | 1.5% |
| Q3 2021 | 275 | $3.8B | 43,793,969 | 47 | 81 | 113 | 1.0% |
| Q2 2021 | 256 | $3.2B | 44,057,204 | 40 | 92 | 91 | 0.5% |
| Q1 2021 | 241 | $3.3B | 45,172,118 | 80 | 53 | 95 | 0.4% |
| Q4 2020 | 187 | $1.9B | 45,392,874 | 35 | 54 | 77 | 0.5% |
| Q3 2020 | 178 | $1.1B | 46,406,590 | 25 | 64 | 69 | 0.0% |
| Q2 2020 | 169 | $1.3B | 46,306,575 | 27 | 59 | 59 | 0.0% |
| Q1 2020 | 170 | $978.6M | 46,430,862 | 18 | 57 | 73 | 0.1% |
| Q4 2019 | 211 | $1.9B | 46,591,882 | 47 | 64 | 83 | 0.1% |
| Q3 2019 | 182 | $1.4B | 45,895,294 | 27 | 55 | 76 | 0.1% |
| Q2 2019 | 171 | $1.3B | 50,068,335 | 25 | 69 | 54 | 0.1% |
| Q1 2019 | 177 | $974.5M | 45,237,882 | 28 | 55 | 68 | 0.0% |
| Q4 2018 | 167 | $917.6M | 46,187,742 | 6 | 3 | 1 | 0.1% |