Atkore Inc. (ATKR) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

34,175,735Shares Outstanding

1,399,065Shares held by institutions

$93,009,841Value of institutional holdings

92.80%Institutional ownership %

2.43%Shares Changed QoQ

292No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Atkore Inc. (NYSE:ATKR) currently has 292 active institutional owners and shareholders as of today (December 2025), that have filed 13F forms with the Securities Exchange Commission (SEC).

The collective stake of institutional investors in Atkore moved to 92.8% in December 2025, a shift down from the 96.1% reported for September 2025.
The company experienced a 2.43% quarterly change in institutional shares held, alongside a decrease of 10.43% in total owners annually.
Of these 292 institutional investors, 148 increased their holdings in Atkore, while 104 of them reduced positions, and 40 investors maintained their exposure.
This class of investors increased its holdings in Atkore to 31.72Mn shares for the 13F-cycle ending December 2025, up by 750.99K shares quarter on quarter, and down 5.61Mn shares year over year.
VANGUARD GROUP INC continues to be the largest institutional holder of Atkore as of December 31, 2025, with a position of 3.64Mn shares, representing 10.64% of the company's outstanding stock.
Among the most significant buyers of Atkore during December 2025 were Coliseum Capital Management, LLC (809.30K), EARNEST PARTNERS LLC (783.74K), NEW YORK STATE COMMON RETIREMENT FUND (318.51K), ADAGE CAPITAL PARTNERS GP, L.L.C. (297.00K), ARROWSTREET CAPITAL, LIMITED PARTNERSHIP (277.43K).
Leading sellers of Atkore stock in December 2025 included Jefferies Financial Group Inc. (565.43K), Allspring Global Investments Holdings, LLC (533.29K), VICTORY CAPITAL MANAGEMENT INC (511.50K), ROYAL BANK OF CANADA (462.76K), GOLDMAN SACHS GROUP INC (225.29K).
The top 10 institutional holders of Atkore for the quarter ending December 2025 included VANGUARD GROUP INC (3.64Mn), Gates Capital Management, Inc. (2.73Mn), BlackRock, Inc. (2.56Mn), FIRST TRUST ADVISORS LP (1.39Mn), AMERICAN CENTURY COMPANIES INC (1.25Mn), DIMENSIONAL FUND ADVISORS LP (1.13Mn), LSV ASSET MANAGEMENT (960.45K), STATE STREET CORP (827.52K), Coliseum Capital Management, LLC (809.30K), GEODE CAPITAL MANAGEMENT, LLC (802.21K).

292 Institutional Holders

1,399,065 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
VANGUARD GROUP INC	31 Dec, 2025	3,635,940	3,346	0.09%	$229,973,205.00
Gates Capital Management, Inc.	31 Dec, 2025	2,733,147	-210,901	-7.16%	$172,871,548.00
BlackRock, Inc.	31 Dec, 2025	2,555,705	-55,677	-2.13%	$161,648,314.00
FIRST TRUST ADVISORS LP	31 Dec, 2025	1,385,741	218,358	18.70%	$87,648,118.00
AMERICAN CENTURY COMPANIES INC	31 Dec, 2025	1,253,549	95,446	8.24%	$79,286,985.00
DIMENSIONAL FUND ADVISORS LP	31 Dec, 2025	1,130,477	94,398	9.11%	$71,503,482.00
LSV ASSET MANAGEMENT	31 Dec, 2025	960,450	52,850	5.82%	$60,748.00
STATE STREET CORP	31 Dec, 2025	827,521	-7,456	-0.89%	$52,340,703.00
Coliseum Capital Management, LLC	31 Dec, 2025	809,305	809,305	0.00%	$51,188,541.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	802,214	1,548	0.19%	$50,749,086.00
EARNEST PARTNERS LLC	31 Dec, 2025	783,738	783,738	0.00%	$49,571,429.00
HARDING LOEVNER LP	31 Dec, 2025	732,753	-163,245	-18.22%	$46,349,980.00
Hill City Capital, LP	31 Dec, 2025	728,206	0	0.00%	$46,059,030.00
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	31 Dec, 2025	704,668	277,433	64.94%	$44,570,251.00
VICTORY CAPITAL MANAGEMENT INC	31 Dec, 2025	492,316	-511,496	-50.96%	$31,138,988.00
BANK OF AMERICA CORP /DE/	31 Dec, 2025	419,685	93,614	28.71%	$26,545,076.00
LONDON CO OF VIRGINIA	31 Dec, 2025	411,729	-18,693	-4.34%	$26,042,072.00
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	31 Dec, 2025	410,971	-47,888	-10.44%	$25,993,916.00
JPMORGAN CHASE & CO	31 Dec, 2025	397,146	101,308	34.24%	$25,119,485.00
MORGAN STANLEY	31 Dec, 2025	396,507	63,513	19.07%	$25,079,208.00

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