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ATI Inc

Institutional holders · 13F as of Dec 31, 2025

Holder	Value	Shares	% of shares
Qube Research & Technologies Ltd	$49.37M	430,227	0.32%
Principal Financial Group Inc	$44.10M	303,158	0.22%
GAMCO INVESTORS, INC. ET AL	$43.96M	383,100	0.28%
Wellington Management Group LLP	$43.31M	377,358	0.28%
THE GOLDMAN SACHS GROUP, INC.	$41.59M	362,387	0.27%
JPMORGAN CHASE & CO	$40.73M	354,881	0.26%
LPL Financial LLC	$40.56M	205,781	0.15%
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	$40.43M	352,316	0.26%
SEGALL BRYANT & HAMILL, LLC	$40.35M	277,371	0.20%
KLCM Advisors, Inc.	$38.23M	262,839	0.19%
AMUNDI	$37.99M	261,186	0.19%
Capital International, Inc./CA	$37.42M	326,054	0.24%
Senator Investment Group LP	$37.30M	325,000	0.24%
Retirement Systems of Alabama	$35.44M	308,783	0.23%
1832 Asset Management L.P.	$33.79M	294,473	0.22%
Gotham Asset Management, LLC	$33.39M	290,996	0.21%
DEUTSCHE BANK AG	$32.05M	162,592	0.12%
JANE STREET GROUP, LLC	$31.81M	277,198	0.20%
MUFG Securities EMEA plc	$31.79M	277,000	0.20%
Swiss National Bank	$31.18M	271,700	0.20%
Cartenna Capital, LP	$29.84M	260,000	0.19%
CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM	$29.23M	254,689	0.19%
Allianz Asset Management GmbH	$27.83M	242,511	0.18%
BANK OF NOVA SCOTIA	$27.79M	242,200	0.18%
NOMURA ASSET MANAGEMENT INTERNATIONAL INC.	$27.50M	239,609	0.18%
EMERALD ADVISERS, LLC	$26.40M	181,485	0.13%
STATE OF WISCONSIN INVESTMENT BOARD	$26.25M	228,775	0.17%
Legal & General Group Plc	$25.80M	224,789	0.17%
WELLS FARGO & COMPANY/MN	$24.99M	217,753	0.16%
Royal Bank of Canada	$24.88M	171,029	0.13%
DRIEHAUS CAPITAL MANAGEMENT LLC	$24.46M	213,111	0.16%
CPPIB Crestone Peak Resources Canada Inc.	$24.40M	167,726	0.12%
HAWK RIDGE CAPITAL MANAGEMENT LP	$24.04M	209,500	0.15%
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	$22.95M	157,761	0.12%
Corient Private Wealth LLC	$20.49M	176,486	0.13%
CIBC WORLD MARKETS CORP	$20.36M	177,444	0.13%
VOLORIDGE INVESTMENT MANAGEMENT, LLC	$20.17M	175,732	0.13%
Concentric Capital Strategies, LP	$18.59M	161,956	0.12%
Barclays PLC	$16.01M	139,544	0.10%
Sanctuary Advisors, LLC	$15.52M	135,265	0.10%
GUGGENHEIM CAPITAL LLC	$15.18M	104,361	0.08%
Man Group plc	$15.11M	131,661	0.10%
ROYCE & ASSOCIATES LP	$15.09M	131,532	0.10%
Advisors Asset Management, Inc.	$14.91M	102,505	0.08%
Mountaineer Partners Management, LLC	$14.79M	128,909	0.09%
SIGNATURE ESTATE & INVESTMENT ADVISORS LLC	$14.54M	99,952	0.07%
SEI INVESTMENTS CO	$13.72M	119,585	0.09%
Weiss Asset Management LP	$13.66M	119,031	0.09%
EMERALD MUTUAL FUND ADVISERS TRUST	$13.65M	93,847	0.07%
FIRST TRUST ADVISORS LP	$13.55M	93,147	0.07%