| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| VANGUARD GROUP INC | 10% | +3.5% | $260,764,253 | +$8,930,426 | 3,478,248 | +3.5% | The Vanguard Group | 31 Jul 2025 |
| Gates Capital Management, Inc. | 7.8% | -17% | $197,035,329 | -$47,746,294 | 2,628,189 | -20% | Gates Capital Management, L.P. | 30 Jun 2025 |
| BlackRock, Inc. | 7.3% | $154,504,335 | 2,462,609 | BlackRock, Inc. | 30 Sep 2025 | |||
| FIRST TRUST PORTFOLIOS LP | 3.9% | -22% | $81,974,453 | -$26,000,209 | 1,306,574 | -24% | First Trust Portfolios L.P. | 30 Sep 2025 |
As of 31 Dec 2025, 304 institutional investors reported holding 31,974,485 shares of Atkore Inc. - Common (ATKR). This represents 95% of the company’s total 33,674,588 outstanding shares.
The largest institutional shareholders of Atkore Inc. - Common (ATKR) together control 69% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| VANGUARD GROUP INC | 11% | 3,635,940 | +0.09% | 0% | $229,973,205 |
| Gates Capital Management, Inc. | 8.1% | 2,733,147 | -7.2% | 6% | $172,871,548 |
| BlackRock, Inc. | 7.6% | 2,555,705 | -2.1% | 0% | $161,648,314 |
| FIRST TRUST ADVISORS LP | 4.1% | 1,385,741 | +19% | 0.06% | $87,648,118 |
| AMERICAN CENTURY COMPANIES INC | 3.7% | 1,253,549 | +8.2% | 0.04% | $79,286,985 |
| DIMENSIONAL FUND ADVISORS LP | 3.4% | 1,130,477 | +9.1% | 0.01% | $71,503,482 |
| LSV ASSET MANAGEMENT | 2.9% | 960,450 | +5.8% | 0.13% | $60,748,000 |
| STATE STREET CORP | 2.5% | 827,521 | -0.89% | 0% | $52,340,703 |
| Coliseum Capital Management, LLC | 2.4% | 809,305 | 4.2% | $51,188,541 | |
| GEODE CAPITAL MANAGEMENT, LLC | 2.4% | 802,214 | +0.19% | 0% | $50,749,086 |
| EARNEST PARTNERS LLC | 2.3% | 783,738 | 0.21% | $49,571,429 | |
| Harding Loevner LP | 2.2% | 732,753 | -18% | 0.41% | $46,349,980 |
| Hill City Capital, LP | 2.2% | 728,206 | 0% | 1.7% | $46,059,030 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 2.1% | 704,668 | +65% | 0.03% | $44,570,251 |
| VICTORY CAPITAL MANAGEMENT INC | 1.5% | 492,316 | -51% | 0.02% | $31,138,988 |
| BANK OF AMERICA CORP /DE/ | 1.2% | 419,685 | +29% | 0% | $26,545,076 |
| LONDON CO OF VIRGINIA | 1.2% | 411,729 | -4.3% | 0.15% | $26,042,072 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.2% | 410,971 | -10% | 0% | $25,993,916 |
| JPMORGAN CHASE & CO | 1.2% | 397,146 | +34% | 0% | $25,119,485 |
| MORGAN STANLEY | 1.2% | 396,506 | +19% | 0% | $25,079,083 |
| GENDELL JEFFREY L | 1.1% | 387,201 | -7.4% | 0.43% | $24,490,464 |
| GOLDMAN SACHS GROUP INC | 1.1% | 383,841 | -37% | 0% | $24,277,952 |
| NORTHERN TRUST CORP | 1.1% | 363,649 | -6.5% | 0% | $23,000,802 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 1% | 351,287 | +2.4% | 0.03% | $22,219,137 |
| NEW YORK STATE COMMON RETIREMENT FUND | 1% | 345,828 | +1166% | 0.03% | $21,873,621 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 31,974,485 | $2,022,721,295 | -$23,173,484 | $63.25 | 304 |
| 2025 Q3 | 32,263,319 | $2,024,894,475 | -$44,046,024 | $62.74 | 295 |
| 2025 Q2 | 32,795,224 | $2,321,952,503 | -$48,513,360 | $70.55 | 290 |
| 2025 Q1 | 33,550,272 | $2,012,730,322 | -$304,894,543 | $59.99 | 291 |
| 2024 Q4 | 37,323,975 | $3,111,923,794 | +$91,408,379 | $83.45 | 325 |
| 2024 Q3 | 36,054,204 | $3,055,403,985 | -$433,225,562 | $84.74 | 359 |
| 2024 Q2 | 39,520,389 | $5,334,744,181 | -$58,627,328 | $134.93 | 443 |
| 2024 Q1 | 39,260,233 | $7,474,224,397 | +$92,664,569 | $190.36 | 447 |
| 2023 Q4 | 39,277,126 | $6,283,627,517 | +$45,736,485 | $160.00 | 438 |
| 2023 Q3 | 38,822,549 | $5,791,038,643 | -$12,062,658 | $149.19 | 408 |
| 2023 Q2 | 38,767,298 | $6,044,399,356 | +$65,868,945 | $155.94 | 404 |
| 2023 Q1 | 38,340,558 | $5,385,793,882 | -$86,569,697 | $140.48 | 388 |
| 2022 Q4 | 39,441,763 | $4,475,639,060 | -$185,135,193 | $113.42 | 362 |
| 2022 Q3 | 41,162,279 | $3,203,299,572 | +$33,234,386 | $77.81 | 288 |
| 2022 Q2 | 40,809,864 | $3,389,233,466 | -$74,233,562 | $83.01 | 308 |
| 2022 Q1 | 41,789,145 | $4,121,533,124 | -$113,479,329 | $98.44 | 314 |
| 2021 Q4 | 42,895,506 | $4,766,357,492 | -$268,496,052 | $111.19 | 308 |
| 2021 Q3 | 43,793,954 | $3,812,339,996 | -$14,461,364 | $86.92 | 271 |
| 2021 Q2 | 43,848,485 | $3,113,322,980 | -$92,455,728 | $71.00 | 250 |
| 2021 Q1 | 45,149,585 | $3,247,306,884 | +$33,845,469 | $71.90 | 237 |
| 2020 Q4 | 45,116,690 | $1,855,129,814 | -$41,454,962 | $41.11 | 185 |
| 2020 Q3 | 46,405,771 | $1,054,955,378 | -$488,269 | $22.73 | 176 |
| 2020 Q2 | 46,306,323 | $1,266,075,397 | +$16,536,132 | $27.35 | 165 |
| 2020 Q1 | 46,072,133 | $970,247,513 | -$23,028,858 | $21.07 | 165 |
| 2019 Q4 | 45,772,339 | $1,851,926,199 | +$19,956,161 | $40.46 | 208 |
| 2019 Q3 | 45,895,063 | $1,392,995,050 | +$10,468,591 | $30.35 | 178 |
| 2019 Q2 | 45,625,538 | $1,180,256,064 | +$72,848,345 | $25.87 | 165 |
| 2019 Q1 | 45,106,128 | $971,131,162 | -$6,912,368 | $21.53 | 174 |
| 2018 Q4 | 45,473,726 | $902,170,387 | -$6,575,387 | $19.84 | 167 |
| 2018 Q3 | 45,473,872 | $1,206,372,051 | +$19,341,990 | $26.53 | 173 |
| 2018 Q2 | 44,972,768 | $934,192,772 | +$637,262 | $20.77 | 147 |
| 2018 Q1 | 45,674,457 | $906,342,835 | -$362,691,655 | $19.85 | 140 |
| 2017 Q4 | 63,131,587 | $1,354,063,627 | +$8,893,493 | $21.45 | 121 |
| 2017 Q3 | 62,669,712 | $1,222,684,043 | -$37,694,169 | $19.51 | 124 |
| 2017 Q2 | 64,163,641 | $1,446,954,213 | +$34,265,777 | $22.55 | 125 |
| 2017 Q1 | 62,472,792 | $1,643,112,937 | +$20,456,875 | $26.28 | 133 |
| 2016 Q4 | 62,883,147 | $1,504,938,190 | +$1,231,843,239 | $23.91 | 107 |
| 2016 Q3 | 11,415,431 | $213,922,544 | +$38,154,176 | $18.74 | 54 |
| 2016 Q2 | 9,795,067 | $156,740,000 | +$141,765,000 | $16.00 | 37 |