ATI ATI INC

Stock (common), issuer CIK 1018963

Filings received so far for Q3 2026: 24 13F filers report a position in ATI shares at 2026-09-30. The quarter is not complete: its 13F deadline is 2026-11-14, and the counts grow as filings arrive.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q3 2026

Filers in the available 13F reports with a share position at 2026-09-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

Holder	Shares	Value	% of portfolio	Change	Source
Artemis Investment Management LLP	854,431	$162M	1.41%	+12,938	13F-HR Timeline
GAMMA Investing LLC	6,192	$1.17M	0.04%	+1,399	13F-HR Timeline
FIG FINANCIAL ADVISORY SERVICES INC /ADV	6,121	$1.16M	0.7%	new	13F-HR Timeline
TOTH FINANCIAL ADVISORY CORP	5,612	$1.06M	0.11%	+3	13F-HR Timeline
Farther Finance Advisors, LLC	5,368	$1.02M	0.01%	+1,019	13F-HR Timeline
Central Pacific Bank - Trust Division	4,769	$903K	0.09%	-1,539	13F-HR Timeline
JUNCTURE WEALTH STRATEGIES, LLC	2,487	$471K	0.12%	0	13F-HR Timeline
Wedmont Private Capital	2,326	$438K	0.01%	+128	13F-HR Timeline
Successful Portfolios LLC	2,000	$385K	0.18%	0	13F-HR Timeline
Versant Capital Management, Inc	1,610	$305K	0.03%	-56	13F-HR Timeline
Marathon Mission, Inc.	1,606	$304K	0.15%	+118	13F-HR Timeline
Insight Wealth Strategies, LLC	1,455	$276K	0.03%	+1	13F-HR Timeline
GK Wealth Management LLC	1,206	$228K	0.13%	-909	13F-HR Timeline
STEPH & CO	436	$82.6K	0.02%	new	13F-HR Timeline
MassMutual Private Wealth & Trust, FSB	394	$74.6K	<0.01%	-4	13F-HR Timeline
Retirement Wealth Solutions LLC	160	$30.3K	0.02%	new	13F-HR Timeline
CoreCap Advisors, LLC	147	$27.8K	<0.01%	-7	13F-HR Timeline
GILPIN WEALTH MANAGEMENT, LLC	32	$6.06K	<0.01%	new	13F-HR Timeline
Planning Strategies Inc.	18	$3.41K	<0.01%	0	13F-HR Timeline
Marquette Asset Management, LLC	17	$3.22K	<0.01%	0	13F-HR Timeline
CX Institutional	16	$3K	<0.01%	0	13F-HR Timeline
ELEVATION WEALTH PARTNERS, LLC	10	$1.89K	<0.01%	0	13F-HR Timeline
Davis Capital Management	5	$947	<0.01%	+2	13F-HR Timeline
Grove Bank & Trust	2	$379	<0.01%	0	13F-HR Timeline