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
$71.19
All holders as of 31 Dec 2025
Q4 2025
Total 13F shares
31,974,485
Total reported value
$2,022,721,295
% of total 13F portfolios
0%
Share change
-363,666
Value change
-$23,173,484
Number of holders
304
Price from insider filings
$71.19
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% $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.

Top 25 Institutional Shareholders

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

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 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