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ATI (ATI) Institutional Ownership

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$73.99 -1.33 (-1.77%)
Closing price 03:59 PM Eastern
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$75.00 +1.01 (+1.37%)
As of 05:13 PM Eastern
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Institutional Ownership Changes (13F Filings) for ATI (NYSE:ATI)

Number of
Institutional Buyers
(last 12 months)
312
Total
Institutional Inflows
(last 12 months)
$2.53B
Number of
Institutional Sellers
(last 12 months)
186
Total
Institutional Outflows
(last 12 months)
$2.06B
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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
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%
8/12/2025 FourThought Financial Partners LLC13,082$1.13M0.1%-7.9%0.009%
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8/12/2025 Associated Banc Corp2,500$216K0.0%N/A0.002%
8/12/2025 Advisors Asset Management Inc.88,992$7.68M0.1%+7.5%0.065%
8/12/2025 XTX Topco Ltd37,729$3.26M0.1%-13.2%0.027%
8/12/2025 Steward Partners Investment Advisory LLC4,797$414K0.0%-10.9%0.003%
8/12/2025 Ameritas 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%
8/12/2025 Eisler Capital Management Ltd.6,134$530K0.0%N/A0.004%
8/12/2025 Prudential Financial Inc.302,512$26.12M0.0%+14.5%0.219%
8/12/2025 Charles Schwab Investment Management Inc.1,497,433$129.29M0.0%+0.3%1.086%
8/12/2025 American Century Companies Inc.1,386,116$119.68M0.1%-2.5%1.006%
8/12/2025 Segall Bryant & Hamill LLC373,083$32.21M0.5%+108.9%0.271%
8/12/2025 Bowen Hanes & Co. Inc.1,375,560$118.77M3.0%+0.3%0.998%
8/12/2025 Rhumbline Advisers370,012$31.95M0.0%+2.1%0.268%
8/12/2025 AXQ Capital LP2,506$216K0.1%-80.2%0.002%
8/12/2025 Journey Strategic Wealth LLC5,593$483K0.0%+3.5%0.004%
8/12/2025 Legal & General Group Plc237,225$20.48M0.0%-7.0%0.172%
8/12/2025 MAI Capital Management869$75K0.0%+38.6%0.001%
8/12/2025 Entropy Technologies LP15,567$1.34M0.1%-8.5%0.011%
8/12/2025 Swiss National Bank269,600$23.28M0.0%-2.4%0.196%
8/12/2025 Catalyst Funds Management Pty Ltd7,928$685K0.2%-69.1%0.006%
8/12/2025 Ensign Peak Advisors Inc38,941$3.36M0.0%-15.1%0.028%
8/11/2025 Vanguard Group Inc.13,330,475$1.15B0.0%-4.1%9.672%
8/11/2025 Nomura Asset Management Co. Ltd.720$62K0.0%+56.5%0.001%
8/11/2025 Semanteon Capital Management LP2,874$248K0.4%N/A0.002%
8/11/2025 Universal Beteiligungs und Servicegesellschaft mbH25,369$2.19M0.0%-23.5%0.018%
8/8/2025 Cetera Investment Advisers3,758$324K0.0%N/A0.003%
8/8/2025 Intech Investment Management LLC26,500$2.29M0.0%-54.7%0.019%
8/8/2025 Thoroughbred Financial Services LLC11,673$1.01M0.1%N/A0.008%
8/8/2025 Creative Planning22,658$1.96M0.0%-5.0%0.016%
8/8/2025 SG Americas Securities LLC23,636$2.04M0.0%+0.7%0.017%
8/8/2025 Commonwealth of Pennsylvania Public School Empls Retrmt SYS36,245$3.13M0.0%+6.3%0.026%
8/8/2025 Banco Bilbao Vizcaya Argentaria S.A.2,797$244K0.0%-36.9%0.002%
8/8/2025 Police & Firemen s Retirement System of New Jersey53,226$4.60M0.0%+19.6%0.039%
8/8/2025 Geode Capital Management LLC2,435,916$210.35M0.0%+2.4%1.767%
8/8/2025 PNC Financial Services Group Inc.57,857$5.00M0.0%-23.8%0.042%
8/8/2025 KBC Group NV3,872$334K0.0%-33.0%0.003%
8/7/2025 ProShare Advisors LLC6,254$540K0.0%+2.9%0.005%
8/7/2025 Profund Advisors LLC3,268$282K0.0%N/A0.002%
8/7/2025 Pier 88 Investment Partners LLC14,992$1.29M0.2%+23.1%0.011%
8/7/2025 Campbell & CO Investment Adviser LLC19,944$1.72M0.1%N/A0.014%
8/7/2025 Connor Clark & Lunn Investment Management Ltd.81,159$7.01M0.0%N/A0.059%
8/7/2025 Freemont Management S.A.3,400$294K0.0%+30.8%0.002%
8/7/2025 Los Angeles Capital Management LLC35,789$3.09M0.0%N/A0.026%
8/6/2025 Summit Investment Advisors Inc.28,296$1.47M1.2%+12,202.6%0.021%
8/6/2025 Penserra Capital Management LLC18,685$1.61M0.0%N/A0.014%
8/6/2025 Savant Capital LLC3,654$315K0.0%N/A0.003%
8/6/2025 Cetera Trust Company N.A7,173$619K0.4%+5.5%0.005%
8/6/2025 DDFG Inc2,498$216K0.1%N/A0.002%
8/6/2025 Graphene Investments SAS36,900$3.19M2.1%-30.9%0.027%
8/6/2025 BNP PARIBAS ASSET MANAGEMENT Holding S.A.1,473$127K0.0%N/A0.001%
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8/5/2025 Crestwood Advisors Group LLC17,052$1.47M0.0%-5.5%0.012%
8/5/2025 Bank of New York Mellon Corp892,300$77.04M0.0%-1.1%0.647%
8/5/2025 Bank of Montreal Can33,648$2.91M0.0%-6.6%0.024%
8/5/2025 State of Michigan Retirement System33,900$2.93M0.0%-0.6%0.025%
8/4/2025 Strs Ohio15,203$1.31M0.0%-15.6%0.011%
8/4/2025 Amalgamated Bank64,067$5.53M0.0%-0.3%0.045%
8/4/2025 Retirement Systems of Alabama172,417$14.89M0.1%-0.7%0.122%
8/4/2025 Keybank National Association OH10,143$876K0.0%-1.5%0.007%
8/4/2025 Hantz Financial Services Inc.19,433$1.68M0.0%+45.1%0.014%
8/4/2025 Emerald Mutual Fund Advisers Trust179,255$15.48M0.9%-48.6%0.127%
(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, 440 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 378 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 42,322,038 shares in the last 24 months. This purchase volume represents approximately $2.56B in transactions.

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

Of the 182 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 Channing Capital Management LLC ($847.83K).

How much institutional selling is happening at ATI?

Institutional investors have sold a total of 31,775,364 shares in the last 24 months. This volume of shares sold represents approximately $2.06B in transactions.


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This page (NYSE:ATI) was last updated on 8/14/2025 by MarketBeat.com Staff
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