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ATI (ATI) Institutional Ownership

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$82.06 -1.61 (-1.92%)
As of 12:55 PM Eastern
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Institutional Ownership Changes (13F Filings) for ATI (NYSE:ATI)

Number of
Institutional Buyers
(last 12 months)
318
Total
Institutional Inflows
(last 12 months)
$2.58B
Number of
Institutional Sellers
(last 12 months)
193
Total
Institutional Outflows
(last 12 months)
$2.22B
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ATI Institutional Buying and Selling by Quarter

ATI Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
10/7/2025Assenagon Asset Management S.A.67,633$5.50M0.0%+366.0%0.049%
10/7/2025Graphene Investments SAS40,400$3.29M2.1%+9.5%0.029%
10/7/2025Oak Thistle LLC7,325$596K0.1%-65.7%0.005%
10/2/2025 GAMMA Investing LLC2,780$226K0.0%-7.3%0.002%
9/26/2025Corient Private Wealth LLC299,064$25.82M0.0%-1.9%0.217%
9/24/2025Texas Permanent School Fund Corp72,440$6.25M0.1%-32.9%0.053%
9/4/2025Osaic Holdings Inc.21,305$1.84M0.0%+82.5%0.015%
8/26/2025Thrivent Financial for Lutherans60,779$5.25M0.0%-0.4%0.044%
8/19/2025Cape Investment Advisory Inc.1,518$131K0.0%N/A0.001%
8/19/2025Advisory Services Network LLC17,668$1.53M0.0%-18.0%0.013%
8/18/2025Hudson Bay Capital Management LP206,803$17.86M0.1%-24.0%0.150%
8/16/2025FORA Capital LLC38,127$3.29M0.4%N/A0.028%
8/16/2025Evergreen Capital Management LLC6,647$574K0.0%-16.2%0.005%
8/15/2025CANADA LIFE ASSURANCE Co80,294$6.94M0.0%-22.8%0.058%
8/15/2025Tower Research Capital LLC TRC 3,444$297K0.0%-40.8%0.002%
8/15/2025Corient Private Wealth LLC299,074$25.82M0.0%-1.9%0.217%
8/15/2025State of Tennessee Department of Treasury63,107$5.45M0.0%-14.6%0.046%
8/15/2025Captrust Financial Advisors3,534$305K0.0%-23.9%0.003%
8/15/2025Vident Advisory LLC3,333$288K0.0%-60.0%0.002%
8/15/2025Tidal Investments LLC4,506$389K0.0%N/A0.003%
8/15/2025Smartleaf Asset Management LLC972$84K0.0%-55.7%0.001%
8/15/2025Rafferty Asset Management LLC39,022$3.37M0.0%N/A0.028%
8/15/2025Scopus Asset Management L.P.98,466$8.50M0.1%N/A0.071%
8/15/2025Oxford Asset Management LLP8,421$727K0.3%+72.3%0.006%
8/15/2025MML Investors Services LLC6,918$597K0.0%-8.0%0.005%
8/15/2025Moore Capital Management LP162,965$14.07M0.2%-12.8%0.118%
8/15/2025Man Group plc7,512$649K0.0%-5.5%0.005%
8/15/2025Meiji Yasuda Asset Management Co Ltd.3,383$292K0.0%N/A0.002%
8/15/2025Lazard Asset Management LLC6,320$545K0.0%+118.5%0.005%
8/15/2025LMR Partners LLP7,409$640K0.0%N/A0.005%
8/15/2025Holocene Advisors LP604,781$52.22M0.1%N/A0.439%
8/15/2025Hudson Bay Capital Management LP206,803$17.86M0.1%-24.0%0.150%
8/15/2025Engineers Gate Manager LP41,128$3.55M0.0%-80.4%0.030%
8/15/2025Cubist Systematic Strategies LLC335,884$29M0.1%+34.9%0.244%
8/15/2025Curi Capital LLC11,816$1.02M0.0%N/A0.009%
8/15/2025BNP Paribas Financial Markets720,224$62.18M0.0%+552.7%0.523%
8/15/2025Brevan Howard Capital Management LP39,452$3.41M0.0%-56.1%0.029%
8/15/2025Bank of America Corp DE622,496$53.75M0.0%-34.1%0.452%
8/15/2025AQR Capital Management LLC64,942$5.61M0.0%+20.2%0.047%
8/15/2025Ameriprise Financial Inc.2,109,919$182.17M0.0%-27.7%1.531%
8/14/2025PDT Partners LLC61,173$5.28M0.3%-37.8%0.044%
8/14/2025California State Teachers Retirement System132,134$11.41M0.0%+0.8%0.096%
8/14/2025Raymond James Financial Inc.943,789$81.49M0.0%+11.7%0.685%
8/14/2025Worldquant Millennium Advisors LLC13,001$1.12M0.0%+41.3%0.009%
8/14/2025Canada Pension Plan Investment Board295,100$25.48M0.0%+47.3%0.214%
8/14/2025Soros Fund Management LLC362,695$31.32M0.4%-40.9%0.263%
8/14/2025Occudo Quantitative Strategies LP12,771$1.10M0.1%N/A0.009%
8/14/2025Quantinno Capital Management LP11,775$1.02M0.0%+57.1%0.009%
8/14/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.997,941$86.16M0.2%-1.4%0.724%
8/14/2025Alliancebernstein L.P.201,028$17.36M0.0%-7.0%0.146%
8/14/2025Peapack Gladstone Financial Corp2,430$210K0.0%N/A0.002%
8/14/2025Saraza Management LP305,000$26.33M6.4%N/A0.221%
8/14/2025Treasurer of the State of North Carolina65,333$5.64M0.0%+15.7%0.047%
8/14/2025The Manufacturers Life Insurance Company 105,718$9.13M0.0%-5.9%0.077%
8/14/2025Sei Investments Co.123,166$10.63M0.0%-29.1%0.089%
8/14/2025Nebula Research & Development LLC34,259$2.96M0.3%+117.1%0.025%
8/14/2025Frontier Capital Management Co. LLC2,225,724$192.17M1.8%-14.5%1.615%
8/14/2025NewEdge Advisors LLC863$75K0.0%N/A0.001%
8/14/2025Sapience Investments LLC34,043$2.94M2.0%-26.3%0.025%
8/14/2025Albar Capital Partners LLP42,859$3.70M0.6%N/A0.031%
8/14/2025Dendur Capital LP3,175,000$274.13M24.6%-11.0%2.304%
8/14/2025State Street Corp5,626,765$485.82M0.0%-2.5%4.082%
8/14/2025WINTON GROUP Ltd6,231$538K0.0%-70.1%0.005%
8/14/2025Natixis203,330$17.56M0.1%+101,565.0%0.148%
8/14/2025Bank of Nova Scotia238,237$20.57M0.0%N/A0.173%
8/14/2025California Public Employees Retirement System183,104$15.81M0.0%+17.8%0.133%
8/14/2025Cerity Partners LLC3,247$280K0.0%-66.0%0.002%
8/14/2025Federated Hermes Inc.448,485$38.72M0.1%+1.2%0.325%
8/13/2025Gamco Investors INC. ET AL400,800$34.61M0.3%-0.2%0.291%
8/13/2025Tema Etfs LLC70,654$6.10M1.6%-39.2%0.051%
8/13/2025Amundi270,403$23.15M0.0%+166.3%0.196%
8/13/2025Marshall Wace LLP259,392$22.40M0.0%-57.4%0.188%
8/13/2025First Trust Advisors LP197,214$17.03M0.0%+4.9%0.143%
8/13/2025Guggenheim Capital LLC65,494$5.66M0.0%+6.7%0.048%
8/13/2025Channing Capital Management LLC826,631$71.37M2.0%-46.8%0.600%
8/13/2025EverSource Wealth Advisors LLC2,970$256K0.0%+92.7%0.002%
8/13/2025Invesco Ltd.3,296,624$284.63M0.0%-32.0%2.392%
8/13/2025NBW Capital LLC73,557$6.35M1.4%-1.1%0.053%
8/13/2025Quantbot Technologies LP22,127$1.91M0.0%N/A0.016%
8/13/2025M&T Bank Corp3,681$317K0.0%N/A0.003%
8/13/2025Fisher Asset Management LLC627,980$54.22M0.0%-3.6%0.456%
8/13/2025Edgestream Partners L.P.56,843$4.91M0.1%+10.8%0.041%
8/13/2025Lido Advisors LLC3,683$318K0.0%-84.5%0.003%
8/13/2025New York State Common Retirement Fund226,456$19.55M0.0%-37.6%0.164%
8/13/2025Schroder Investment Management Group532,837$46.01M0.0%+21.3%0.387%
8/13/2025Neuberger Berman Group LLC778,482$67.21M0.1%-31.2%0.565%
8/13/2025Norges Bank1,699,392$146.73M0.0%N/A1.233%
8/13/2025Quadrature Capital Ltd19,219$1.66M0.0%N/A0.014%
8/13/2025Hsbc Holdings PLC35,684$3.10M0.0%+655.7%0.026%
8/13/2025Northwestern Mutual Wealth Management Co.17,585$1.52M0.0%-6.2%0.013%
8/13/2025State Board of Administration of Florida Retirement System88,728$7.66M0.0%+0.6%0.064%
8/13/2025Quadrant Capital Group LLC16,011$1.38M0.0%-5.0%0.012%
8/13/2025Choreo LLC3,296$285K0.0%-35.3%0.002%
8/12/2025FourThought Financial Partners LLC13,082$1.13M0.1%-7.9%0.009%
8/12/2025Associated Banc Corp2,500$216K0.0%N/A0.002%
8/12/2025Advisors Asset Management Inc.88,992$7.68M0.1%+7.5%0.065%
8/12/2025XTX Topco Ltd37,729$3.26M0.1%-13.2%0.027%
8/12/2025Steward Partners Investment Advisory LLC4,797$414K0.0%-10.9%0.003%
8/12/2025Ameritas Investment Partners Inc.27,620$2.39M0.1%-2.4%0.020%
8/12/2025Jefferies Financial Group Inc.58,065$5.01M0.0%-20.2%0.042%
(Data available from 1/1/2016 forward)

ATI Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of ATI shares?

During the previous two years, 448 institutional investors and hedge funds held shares of ATI. The most heavily invested institutionals were Vanguard Group Inc. ($1.15B), Capital International Investors ($875.19M), State Street Corp ($485.82M), Capital World Investors ($378.43M), FMR LLC ($364.47M), Invesco Ltd. ($284.63M), and Dendur Capital LP ($274.13M).Learn more on ATI's institutional investors.

Which institutional investors have been buying ATI's stock?

Of the 387 institutional investors that purchased ATI's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Mountaineer Partners Management LLC ($9.24M), Norges Bank ($4.47M), Capital World Investors ($4.32M), Dendur Capital LP ($3.06M), Vanguard Group Inc. ($2.15M), Point72 Asset Management L.P. ($1.97M), and Palestra Capital Management LLC ($1.96M).

How much institutional buying is happening at ATI?

Institutional investors have bought a total of 41,657,882 shares in the last 24 months. This purchase volume represents approximately $2.58B in transactions.

Which of ATI's major shareholders have been selling company stock?

Of the 193 institutional investors that sold ATI's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Thrivent Financial for Lutherans ($7.91M), FMR LLC ($4.14M), Vanguard Group Inc. ($2.00M), Invesco Ltd. ($1.55M), Millennium Management LLC ($1.50M), Federated Hermes Inc. ($1.36M), and Ameriprise Financial Inc. ($1.05M).

How much institutional selling is happening at ATI?

Institutional investors have sold a total of 33,645,028 shares in the last 24 months. This volume of shares sold represents approximately $2.22B in transactions.


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This page (NYSE:ATI) was last updated on 10/7/2025 by MarketBeat.com Staff
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