Company · Ownership research

Atkore Inc. ATKR

CIK 0001666138 · CUSIP 047649108

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 047649108 (ATKR), not CUSIP 047649908 (ATKR), CUSIP 047649958 (ATKR), and does not merge CUSIPs.

This page lists the top 20 of 300 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	VANGUARD GROUP INC CIK 102909 · View history	$211.19M 3,520,389 shares	0.00%	-161.30K(-4.40%)Reduced	SEC filing ↗ May 9, 2025	▾
02	Gates Capital Management, Inc. CIK 1312908 · View history	$195.87M 3,265,061 shares	6.08%	+657.71K(+25.20%)Added	SEC filing ↗ May 15, 2025	▾
03	BlackRock, Inc. CIK 2012383 · View history	$164.61M 2,743,892 shares	0.00%	-396.23K(-12.60%)Reduced	SEC filing ↗ May 2, 2025	▾
04	FIRST TRUST ADVISORS LP CIK 1125816 · View history	$92.62M 1,543,939 shares	0.08%	+369.48K(+31.50%)Added	SEC filing ↗ May 14, 2025	▾
05	Harding Loevner LP CIK 928196 · View history	$77.81M 1,297,033 shares	0.60%	+657.90K(+102.90%)Added	SEC filing ↗ May 15, 2025	▾
06	Allspring Global Investments Holdings, LLC CIK 1890906 · View history	$63.76M 1,062,353 shares	0.11%	-306.51K(-22.40%)Reduced	SEC filing ↗ Apr 24, 2025	▾
07	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$61.57M 1,026,349 shares	0.02%	-64.47K(-5.90%)Reduced	SEC filing ↗ May 13, 2025	▾
08	LSV ASSET MANAGEMENT CIK 1050470 · View history	$54.39M 906,600 shares	0.13%	-17.50K(-1.90%)Reduced	SEC filing ↗ May 9, 2025	▾
09	STATE STREET CORP CIK 93751 · View history	$50.99M 849,944 shares	0.00%	-41.02K(-4.60%)Reduced	SEC filing ↗ May 15, 2025	▾
10	AMERICAN CENTURY COMPANIES INC CIK 748054 · View history	$50.42M 840,505 shares	0.03%	+56.69K(+7.20%)Added	SEC filing ↗ May 13, 2025	▾
11	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$49.50M 825,011 shares	0.00%	-35.86K(-4.20%)Reduced	SEC filing ↗ May 13, 2025	▾
12	MACQUARIE GROUP LTD CIK 1418333 · Amended · View history	$47.21M 786,998 shares	0.06%	-193.28K(-19.70%)Reduced	SEC filing ↗ Aug 14, 2025	▾
13	River Road Asset Management, LLC CIK 1341401 · View history	$47.05M 784,321 shares	0.64%	-309.10K(-28.30%)Reduced	SEC filing ↗ May 13, 2025	▾
14	WELLINGTON MANAGEMENT GROUP LLP CIK 902219 · View history	$45.18M 753,107 shares	0.01%	+146.07K(+24.10%)Added	SEC filing ↗ May 13, 2025	▾
15	VICTORY CAPITAL MANAGEMENT INC CIK 1040188 · View history	$37.69M 628,300 shares	0.04%	+157.47K(+33.40%)Added	SEC filing ↗ May 2, 2025	▾
16	AMERIPRISE FINANCIAL INC CIK 820027 · View history	$34.22M 570,456 shares	0.01%	+17.50K(+3.20%)Added	SEC filing ↗ May 14, 2025	▾
17	VOLORIDGE INVESTMENT MANAGEMENT, LLC CIK 1556921 · View history	$31.25M 520,860 shares	0.12%	+185.02K(+55.10%)Added	SEC filing ↗ May 15, 2025	▾
18	CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · Amended · View history	$30.86M 514,370 shares	0.01%	-15.80K(-3.00%)Reduced	SEC filing ↗ Sep 15, 2025	▾
19	LONDON CO OF VIRGINIA CIK 1259887 · View history	$27.44M 457,406 shares	0.16%	+457.41KNew	SEC filing ↗ May 15, 2025	▾
20	ROYCE & ASSOCIATES LP CIK 906304 · View history	$26.84M 447,425 shares	0.29%	+34.67K(+8.40%)Added	SEC filing ↗ May 6, 2025	▾

Showing 20 / 300 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

300

Cancelled or null records excluded

Disclosed shares

33,719,447

Not deduplicated across managers

Disclosed value

$2.02B

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

Atkore Inc. · Q1 2025

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.