Atkore Inc. - Common (ATKR) Institutional Ownership

13F Institutional Holders and Ownership History from Q2 2016 to Q4 2025

Type / Class
Equity / Common
Symbol
ATKR on NYSE
Shares outstanding
33,674,588
Price per share
$63.25
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares
32,262,281
Total reported value
$2,024,829,768
% of total 13F portfolios
0%
Share change
-552,416
Value change
-$43,918,315
Number of holders
290
Price from insider filings
$63.25
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of Atkore Inc. - Common (ATKR) based on Schedule 13D/G filings

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.

Top 25 Institutional Shareholders

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

Institutional Holders of Atkore Inc. - Common (ATKR) across Reporting Periods

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