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Business Summary
Filings
Ownership
Valuation
Ownership — ATKR
Institutional Holdings
Insider Transactions
US Institutional Ownership
97.9%
Institution
Shares
Value
Ownership %
Change
Filing Date
BlackRock, Inc.
3.12M
$236.0M
9.23%
+489.4K
2026-06-30
VANGUARD PORTFOLIO MANAGEMENT LLC
2.12M
$161.0M
6.28%
+31.9K
2026-06-30
AMERICAN CENTURY COMPANIES INC
1.78M
$134.0M
5.26%
+336.0K
2026-06-30
Gates Capital Management, Inc.
1.71M
$130.0M
5.06%
-975.5K
2026-06-30
VANGUARD CAPITAL MANAGEMENT LLC
1.52M
$115.0M
4.51%
+9.1K
2026-06-30
DIMENSIONAL FUND ADVISORS LP
1.30M
$98.0M
3.85%
+71.8K
2026-06-30
LSV ASSET MANAGEMENT
1.09M
$83.0M
3.24%
+41.7K
2026-06-30
STATE STREET CORP
906.4K
$68.0M
2.68%
+71.3K
2026-06-30
GEODE CAPITAL MANAGEMENT, LLC
902.5K
$68.0M
2.67%
+47.8K
2026-06-30
EARNEST PARTNERS LLC
772.3K
$58.0M
2.29%
-5.6K
2026-06-30
Hill City Capital, LP
724.1K
$55.0M
2.14%
-4.1K
2026-06-30
T. Rowe Price Investment Management, Inc.
647.9K
$49.0M
1.92%
--
2026-06-30
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.
575.6K
$43.0M
1.70%
--
2026-06-30
Harding Loevner LP
567.2K
$43.0M
1.68%
-137.7K
2026-06-30
FIRST TRUST ADVISORS LP
533.1K
$40.0M
1.58%
-693.8K
2026-06-30
JPMORGAN CHASE & CO
520.9K
$39.0M
1.54%
+123.7K
2026-06-30
JACOBS LEVY EQUITY MANAGEMENT, INC
519.3K
$39.0M
1.54%
+176.0K
2026-06-30
Irenic Capital Management LP
507.6K
$38.0M
1.50%
+493.6K
2026-06-30
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
482.2K
$36.0M
1.43%
-215.9K
2026-06-30
Sixth Street Partners Management Company, L.P.
454.0K
$34.0M
1.34%
--
2026-06-30
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
454.0K
$34.0M
1.34%
+36.3K
2026-06-30
BANK OF AMERICA CORP /DE/
438.8K
$33.0M
1.30%
-23.5K
2026-06-30
TWO SIGMA INVESTMENTS, LP
402.1K
$30.0M
1.19%
--
2026-06-30
GENDELL JEFFREY L
400.2K
$30.0M
1.19%
--
2026-06-30
LONDON CO OF VIRGINIA
386.8K
$29.0M
1.15%
+9.2K
2026-06-30
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