| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| VANGUARD GROUP INC | 10% | +3.5% | $236,381,734 | +$8,095,395 | 3,478,248 | +3.5% | The Vanguard Group | 31 Jul 2025 |
| Gates Capital Management, Inc. | 7.8% | -17% | $148,965,753 | -$36,097,905 | 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 30 Sep 2025, 290 institutional investors reported holding 32,262,281 shares of Atkore Inc. - Common (ATKR). This represents 96% of the company’s total 33,674,588 outstanding shares.
The largest institutional shareholders of Atkore Inc. - Common (ATKR) together control 70% 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% | 3,632,594 | +8.1% | 0% | $227,908,948 |
| Gates Capital Management, Inc. | 8.7% | 2,944,048 | +12% | 5.7% | $184,709,572 |
| BlackRock, Inc. | 7.8% | 2,611,382 | -2.3% | 0% | $163,838,112 |
| FIRST TRUST ADVISORS LP | 3.5% | 1,167,383 | -34% | 0.05% | $73,241,609 |
| AMERICAN CENTURY COMPANIES INC | 3.4% | 1,158,103 | +14% | 0.04% | $72,659,391 |
| DIMENSIONAL FUND ADVISORS LP | 3.1% | 1,036,079 | +1.9% | 0.01% | $64,997,505 |
| VICTORY CAPITAL MANAGEMENT INC | 3% | 1,003,812 | -0.79% | 0.04% | $62,979,164 |
| LSV ASSET MANAGEMENT | 2.7% | 907,600 | +2.2% | 0.13% | $56,943,000 |
| HARDING LOEVNER LP | 2.7% | 895,998 | -33% | 0.41% | $56,218,289 |
| STATE STREET CORP | 2.5% | 834,977 | -4.4% | 0% | $52,386,457 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.4% | 800,666 | -0.71% | 0% | $50,241,292 |
| Hill City Capital, LP | 2.2% | 728,206 | 1.9% | $45,687,644 | |
| Allspring Global Investments Holdings, LLC | 2.1% | 695,631 | -28% | 0.07% | $44,631,685 |
| GOLDMAN SACHS GROUP INC | 1.8% | 609,131 | +126% | 0.01% | $38,216,887 |
| Jefferies Financial Group Inc. | 1.7% | 582,168 | 0.33% | $36,525,220 | |
| ROYAL BANK OF CANADA | 1.4% | 482,315 | +1029% | 0.01% | $30,260,000 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.4% | 458,859 | -6.2% | 0% | $28,788,814 |
| LONDON CO OF VIRGINIA | 1.3% | 430,422 | -5.2% | 0.15% | $27,004,882 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 1.3% | 427,235 | +40% | 0.02% | $26,804,724 |
| GENDELL JEFFREY L | 1.2% | 418,146 | +179% | 0.48% | $26,234,480 |
| NORTHERN TRUST CORP | 1.2% | 388,730 | -4.9% | 0% | $24,388,920 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 1% | 343,035 | +1.2% | 0.03% | $21,521,149 |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 1% | 338,120 | 0.08% | $21,213,649 | |
| River Road Asset Management, LLC | 1% | 336,274 | -58% | 0.24% | $21,097,831 |
| MORGAN STANLEY | 0.99% | 332,994 | +2.6% | 0% | $20,892,128 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 171,203 | $10,825,743 | +$263,164 | $63.25 | 13 |
| 2025 Q3 | 32,262,281 | $2,024,829,768 | -$43,918,315 | $62.74 | 290 |
| 2025 Q2 | 32,795,224 | $2,321,952,503 | -$48,513,359 | $70.55 | 290 |
| 2025 Q1 | 33,550,172 | $2,012,723,977 | -$304,894,499 | $59.99 | 290 |
| 2024 Q4 | 37,324,171 | $3,111,940,570 | +$128,191,002 | $83.45 | 324 |
| 2024 Q3 | 35,551,385 | $3,012,795,506 | -$492,141,699 | $84.74 | 356 |
| 2024 Q2 | 39,446,418 | $5,324,763,475 | +$6,477,072 | $134.93 | 441 |
| 2024 Q1 | 38,703,672 | $7,368,245,749 | +$49,508,305 | $190.36 | 450 |
| 2023 Q4 | 165,001 | $26,399,760 | +$16,923,121 | $160.00 | 6 |
| 2023 Q3 | 38,193,281 | $5,697,157,469 | -$10,151,098 | $149.19 | 401 |
| 2023 Q2 | 38,336,391 | $5,977,203,628 | -$53,186,942 | $155.94 | 398 |
| 2023 Q1 | 38,322,221 | $5,383,256,775 | -$87,256,072 | $140.48 | 383 |
| 2022 Q4 | 39,373,704 | $4,467,920,047 | -$165,332,733 | $113.42 | 359 |
| 2022 Q3 | 39,234,292 | $3,053,284,874 | +$49,958,397 | $77.81 | 280 |
| 2022 Q2 | 40,262,477 | $3,336,631,598 | -$77,166,168 | $83.01 | 302 |
| 2022 Q1 | 41,320,847 | $4,075,434,005 | -$108,505,275 | $98.44 | 308 |
| 2021 Q4 | 42,690,502 | $4,743,562,492 | -$271,214,758 | $111.19 | 306 |
| 2021 Q3 | 43,793,963 | $3,812,340,996 | -$6,913,597 | $86.92 | 272 |
| 2021 Q2 | 43,863,268 | $3,116,019,980 | -$72,850,844 | $71.00 | 252 |
| 2021 Q1 | 45,010,324 | $3,237,565,884 | +$25,733,081 | $71.90 | 237 |
| 2020 Q4 | 45,056,292 | $1,852,354,814 | -$41,775,878 | $41.11 | 183 |
| 2020 Q3 | 46,308,272 | $1,052,738,378 | -$97,485 | $22.73 | 173 |
| 2020 Q2 | 45,446,050 | $1,242,547,397 | +$15,984,009 | $27.35 | 162 |
| 2020 Q1 | 43,322,906 | $912,720,468 | -$37,498,726 | $21.07 | 158 |
| 2019 Q4 | 45,473,576 | $1,839,841,176 | +$14,701,166 | $40.46 | 203 |
| 2019 Q3 | 45,847,067 | $1,391,539,050 | +$10,468,467 | $30.35 | 176 |
| 2019 Q2 | 45,492,097 | $1,176,805,064 | +$74,993,039 | $25.87 | 160 |
| 2019 Q1 | 44,787,853 | $964,277,162 | -$7,228,150 | $21.53 | 172 |
| 2018 Q4 | 45,270,581 | $898,139,387 | -$7,475,710 | $19.84 | 165 |
| 2018 Q3 | 45,473,872 | $1,206,372,051 | +$30,846,384 | $26.53 | 173 |
| 2018 Q2 | 44,352,283 | $921,306,772 | -$2,648,100 | $20.77 | 144 |
| 2018 Q1 | 45,087,598 | $894,694,835 | -$364,215,579 | $19.85 | 138 |
| 2017 Q4 | 61,254,781 | $1,313,807,627 | +$10,165,449 | $21.45 | 118 |
| 2017 Q3 | 61,932,376 | $1,208,299,043 | -$41,911,088 | $19.51 | 119 |
| 2017 Q2 | 64,129,413 | $1,446,182,213 | +$29,537,927 | $22.55 | 124 |
| 2017 Q1 | 62,466,256 | $1,642,940,937 | +$17,906,740 | $26.28 | 132 |
| 2016 Q4 | 62,864,171 | $1,504,484,190 | +$1,231,958,832 | $23.91 | 106 |
| 2016 Q3 | 11,411,770 | $213,854,544 | +$41,697,015 | $18.74 | 53 |
| 2016 Q2 | 9,795,067 | $153,143,600 | +$138,168,612 | $16.00 | 37 |