ATI INC

ATINYSE

$192.42+1.28 (+0.67%)as of Oct 2, 2026

Legend

Insider buy

Insider sell

Congress buy

Congress sell

Hedge Funds
bought vs soldGreener markers show more buyers; redder markers show more sellers.

Company share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size.

Insider buy
Insider sell
Congress buy
Congress sell
Hedge Funds bought vs sold

Share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size. Greener fund markers mean more buyers.

Insider Buy
Insider Sell
Congress Buy
Congress Sell
Hedge funds bought vs sold
BuybackNo changeNet dilution

ATI INC price and activity chart data

Showing the 1Y range: Oct 2, 2025 to Oct 2, 2026. Price (+133.2%). 0 insider or congressional trades plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
Date	Category	Person	Role	Action	Amount	Change in holding

Largest institutional holders

13F · Q2 2026

Fund	% of company held	Value	% of portfolio	Quarterly activity
BlackRock, Inc.	13.74%	$3.69B	0.05%	Not reported
Vanguard Portfolio Management LLC	4.57%	$1.23B	0.06%	Not reported
Vanguard Capital Management LLC	4.53%	$1.21B	0.03%	Not reported
Capital World Investors	3.86%	$1.03B	0.12%	Reduce 8.12%
State Street Corp	3.85%	$1.03B	0.03%	Not reported
Capital Research Global Investors	3.74%	$1B	0.14%	Not reported
FMR LLC	3.66%	$983M	0.04%	Not reported
Capital International Investors	2.73%	$733M	0.15%	Reduce 36.79%
Invesco Ltd.	2.53%	$680M	0.05%	Not reported
Geode Capital Management, LLC	2.04%	$548M	0.03%	Not reported
Qube Research & Technologies Ltd	1.57%	$423M	0.39%	Not reported
Morgan Stanley	1.37%	$368M	0.02%	Not reported
Bank of America Corp	1.30%	$348M	0.02%	Not reported
Norges Bank	1.28%	$343M	0.03%	Not reported
Charles Schwab Investment Management Inc	1.09%	$292M	0.04%	Not reported
AQR Capital Management LLC	1.05%	$282M	0.10%	Not reported
Jane Street Group, LLC	1.04%	$278M	0.02%	Not reported
Assenagon Asset Management S.A.	0.97%	$259M	0.16%	Not reported
Northern Trust Corp	0.95%	$254M	0.03%	Not reported
Point72 Asset Management, L.P.	0.91%	$244M	0.27%	Not reported
Dimensional Fund Advisors LP	0.85%	$229M	0.04%	Not reported
Viking Global Investors LP	0.85%	$227M	0.65%	Reduce 65.38%
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	0.82%	$221M	0.26%	Not reported
Dendur Capital LP	0.74%	$199M	10.44%	Reduce 21.36%
Bessemer Group Inc	0.70%	$188M	0.26%	Add 45245.82%
BNP Paribas Financial Markets	0.68%	$182M	0.06%	Not reported
Vanguard Fiduciary Trust Co	0.65%	$174M	0.04%	Not reported
Millennium Management LLC	0.64%	$173M	0.06%	Not reported
Fisher Asset Management, LLC	0.64%	$172M	0.05%	Reduce 5.64%
Ameriprise Financial Inc	0.63%	$169M	0.03%	Not reported
Bank of New York Mellon Corp	0.63%	$169M	0.03%	Not reported
Artemis Investment Management LLP	0.62%	$166M	1.48%	Add 16.63%
Arrowstreet Capital, Limited Partnership	0.62%	$166M	0.07%	Not reported
Polen Capital Management LLC	0.60%	$161M	1.39%	New Not reported
D. E. Shaw & Co., Inc.	0.60%	$161M	0.08%	Not reported
American Century Companies Inc	0.56%	$151M	0.07%	Not reported
Goldman Sachs Group Inc	0.55%	$148M	0.01%	Not reported
Nuveen, LLC	0.54%	$145M	0.03%	Not reported
Marshall Wace, LLP	0.52%	$140M	0.11%	Not reported
Raymond James Financial Inc	0.49%	$132M	0.04%	Not reported
Barrow Hanley Mewhinney & Strauss LLC	0.48%	$130M	0.39%	Not reported
Two Sigma Investments, LP	0.47%	$125M	0.09%	Not reported
Freestone Grove Partners LP	0.43%	$116M	0.74%	Add 1.95%
Loomis Sayles & Co L P	0.43%	$115M	0.14%	Reduce 11.03%
Alliancebernstein L.P.	0.38%	$76M	0.03%	Not reported
Balyasny Asset Management L.P.	0.38%	$101M	0.13%	Not reported
Holocene Advisors, LP	0.37%	$98.1M	0.22%	Reduce 54.66%
Citadel Advisors LLC	0.37%	$98M	0.01%	Not reported
SG Americas Securities, LLC	0.36%	$96.5M	0.05%	Not reported
Wells Fargo & Company	0.36%	$95.3M	0.02%	Not reported

50 of 744 holders

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Historical Activity Patterns

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