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Amentum (AMTM) Institutional Ownership

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$20.60 -1.31 (-5.96%)
As of 03:11 PM Eastern
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Institutional Ownership Changes (13F Filings) for Amentum (NYSE:AMTM)

Current
Institutional Ownership
Percentage
39.93%
Number of
Institutional Buyers
(last 12 months)
300
Total
Institutional Inflows
(last 12 months)
$2.12B
Number of
Institutional Sellers
(last 12 months)
109
Total
Institutional Outflows
(last 12 months)
$373.84M
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AMTM Institutional Buying and Selling by Quarter

Amentum Major Shareholders & Ownership History

Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
5/20/2025 Focus Partners Wealth23,759$432K0.0%-88.2%0.010%
5/20/2025Security National Bank of Sioux City Iowa IA17,069$311K0.2%+11.8%0.007%
5/16/2025 Jones Financial Companies Lllp7,357$134K0.0%-80.1%0.003%
5/16/2025 Ruane Cunniff & Goldfarb L.P.2,393,039$43.55M0.8%-1.8%0.983%
5/16/2025 Nexpoint Asset Management L.P.43,900$799K0.1%+144.0%0.018%
5/16/2025 Millennium Management LLC2,011,792$36.62M0.0%+68.1%0.827%
5/16/2025 Jacobs Levy Equity Management Inc.17,533$319K0.0%-87.9%0.007%
5/16/2025 Engine Capital Management LP635,255$11.56M2.2%+2.2%0.261%
5/16/2025 BW Gestao de Investimentos Ltda.394,400$7.18M0.2%N/A0.162%
5/16/2025 Advisors Asset Management Inc.56,602$1.03M0.0%-20.6%0.023%
5/16/2025 American Trust Investment Advisors LLC35,688$650K0.3%-5.7%0.015%
5/16/2025 Ancora Advisors LLC68,770$1.25M0.0%+105,700.0%0.028%
5/15/2025 AWH Capital L.P.42,500$774K1.1%N/A0.017%
5/15/2025 First Manhattan CO. LLC.16,009$291K0.0%-9.1%0.007%
5/15/2025 Royal Bank of Canada582,195$10.60M0.0%-5.9%0.239%
5/15/2025 Alpine Global Management LLC100,000$1.82M0.5%+300.0%0.041%
5/15/2025 Ghisallo Capital Management LLC635,569$11.57M1.0%N/A0.261%
5/15/2025 MAI Capital Management3,791$69K0.0%-17.6%0.002%
5/15/2025 Quarry LP1,670$30K0.0%N/A0.001%
5/15/2025 Vident Advisory LLC292,857$5.33M0.1%+1,818.7%0.120%
5/15/2025 Kodai Capital Management LP65,540$1.19M0.0%N/A0.027%
5/15/2025 Carlson Capital L.P.28,000$510K0.2%N/A0.012%
5/15/2025 Eisler Capital Management Ltd.126,889$2.31M0.0%N/A0.052%
5/14/2025 Avenir Corp904,162$16.46M1.7%+367.3%0.372%
5/14/2025 Keeley Teton Advisors LLC128,081$2.33M0.3%+621.3%0.053%
5/14/2025 CSM Advisors LLC638,057$11.61M0.6%-0.2%0.262%
5/14/2025 Comerica Bank248,718$4.53M0.0%+409.8%0.102%
5/14/2025 Penn Capital Management Company LLC889,434$16.23M1.6%+99.3%0.366%
5/14/2025 Monashee Investment Management LLC360,000$6.55M0.8%N/A0.148%
5/14/2025 Voss Capital LP2,220,709$40.42M3.1%+393.7%0.913%
5/14/2025 Quantbot Technologies LP28,362$516K0.0%N/A0.012%
5/13/2025 Northern Trust Corp854,423$15.55M0.0%+1.4%0.351%
5/13/2025 Versor Investments LP39,400$717K0.1%N/A0.016%
5/13/2025 Summit Securities Group LLC13,062$238K0.0%N/A0.005%
5/13/2025 Freestone Capital Holdings LLC40,027$728K0.0%N/A0.016%
5/13/2025 Raymond James Financial Inc.180,572$3.29M0.0%+111.0%0.074%
5/13/2025 Seven Grand Managers LLC100,000$1.82M0.4%N/A0.041%
5/13/2025 Kovitz Investment Group Partners LLC3,075,305$55.97M0.3%-79.2%1.264%
5/13/2025 Rock Creek Group LP25,000$455K0.1%N/A0.010%
5/13/2025 Russell Investments Group Ltd.232,933$4.24M0.0%+85.5%0.096%
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5/12/2025 Public Sector Pension Investment Board455,129$8.28M0.0%+47.2%0.187%
5/12/2025 Nuveen LLC287,801$5.24M0.0%N/A0.118%
5/12/2025 Invesco Ltd.17,191,110$312.88M0.1%+24.1%7.065%
5/12/2025 Wolverine Asset Management LLC33,240$605K0.0%N/A0.014%
5/12/2025 Everett Harris & Co. CA31,410$572K0.0%-25.0%0.013%
5/12/2025 Swiss National Bank259,200$4.72M0.0%-1.5%0.107%
5/12/2025 American Securities LLC43,893,904$798.87M100.0%N/A18.039%
5/9/2025 Mutual of America Capital Management LLC20,957$381K0.0%+11.5%0.009%
5/9/2025 CenterBook Partners LP414,574$7.55M0.5%+481.4%0.170%
5/9/2025 Deutsche Bank AG17,088$311K0.0%+19.8%0.007%
5/9/2025 Charles Schwab Investment Management Inc.1,549,158$28.20M0.0%+22.5%0.637%
5/9/2025 Primecap Management Co. CA10,061,589$183.12M0.2%+56.9%4.135%
5/9/2025 Vanguard Group Inc.16,342,560$297.44M0.0%-1.2%6.717%
5/9/2025 Blair William & Co. IL54,200$986K0.0%-3.9%0.022%
5/9/2025 PNC Financial Services Group Inc.15,562$283K0.0%-47.7%0.006%
5/8/2025 US Bancorp DE23,558$429K0.0%-15.7%0.010%
5/8/2025 Shufro Rose & Co. LLC13,034$237K0.0%-4.5%0.005%
5/8/2025 Intrinsic Value Partners LLC15,888$289K0.3%-6.4%0.007%
5/8/2025 Natixis Advisors LLC56,858$1.04M0.0%+145.4%0.023%
5/8/2025 Tower Bridge Advisors38,888$708K0.1%-58.5%0.016%
5/8/2025 Modera Wealth Management LLC27,848$507K0.0%-20.9%0.011%
5/8/2025 GSA Capital Partners LLP30,488$555K0.1%N/A0.013%
5/7/2025 Marco Investment Management LLC29,245$532K0.0%-18.7%0.012%
5/7/2025 LPL Financial LLC93,022$1.69M0.0%-21.7%0.038%
5/7/2025 Zurcher Kantonalbank Zurich Cantonalbank 34,938$636K0.0%-4.4%0.014%
5/6/2025 Proficio Capital Partners LLC22,977$412K0.0%-67.9%0.009%
5/6/2025 Universal Beteiligungs und Servicegesellschaft mbH21,465$391K0.0%-33.3%0.009%
5/6/2025 Clifford Swan Investment Counsel LLC28,630$521K0.0%-2.7%0.012%
5/5/2025 Crestwood Advisors Group LLC80,559$1.47M0.0%-13.9%0.033%
5/5/2025 Allianz Asset Management GmbH38,700$704K0.0%N/A0.016%
5/5/2025 Teachers Retirement System of The State of Kentucky55,816$1.02M0.0%+12.6%0.023%
5/5/2025 Paragon Capital Management LLC48,072$875K0.5%-4.0%0.020%
5/2/2025 Victory Capital Management Inc.29,859$543K0.0%-29.4%0.012%
5/2/2025 Bryn Mawr Capital Management LLC62,372$1.14M0.1%+4.9%0.026%
5/2/2025 Signaturefd LLC1,764$32K0.0%+108.0%0.001%
5/1/2025 CWM LLC4,334$79K0.0%-19.4%0.002%
5/1/2025 Louisiana State Employees Retirement System58,400$1.06M0.0%-2.7%0.024%
5/1/2025 Stephens Inc. AR32,729$596K0.0%-10.8%0.013%
5/1/2025 New York State Common Retirement Fund611,787$11.14M0.0%+61.4%0.251%
5/1/2025 Mutual of America Capital Management LLC20,957$381K0.0%+11.5%0.009%
5/1/2025 Country Club Bank93,752$1.69M0.1%+187.6%0.039%
4/30/2025 Cerity Partners LLC38,804$706K0.0%-44.2%0.016%
4/30/2025 Telos Capital Management Inc.256,178$4.66M0.5%-4.1%0.105%
4/30/2025 Allworth Financial LP8,266$150K0.0%+15.9%0.003%
4/30/2025 Leavell Investment Management Inc.11,614$211K0.0%N/A0.005%
4/30/2025 Nisa Investment Advisors LLC30,487$555K0.0%-12.9%0.013%
4/30/2025 Brown Advisory Inc.11,665$212K0.0%-14.8%0.005%
4/29/2025 Security National Bank of SO Dak24,824$452K0.3%+6.5%0.010%
4/29/2025 Envestnet Asset Management Inc.97,188$1.77M0.0%-13.4%0.040%
4/29/2025 Bank of New York Mellon Corp760,509$13.84M0.0%+16.8%0.313%
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4/29/2025 IFM Investors Pty Ltd22,603$411K0.0%N/A0.009%
4/28/2025 Principal Financial Group Inc.712,172$12.96M0.0%+18.3%0.293%
4/28/2025 Oregon Public Employees Retirement Fund32,800$597K0.0%+12.3%0.013%
4/28/2025 Teacher Retirement System of Texas64,170$1.17M0.0%-26.0%0.026%
4/28/2025 First Bank & Trust14,357$261K0.1%+38.4%0.006%
4/25/2025 WASHINGTON TRUST Co7,541$137K0.0%-17.4%0.003%
4/25/2025 Washington Trust Advisors Inc.53,846$980K0.1%-32.9%0.022%
4/25/2025 New York State Teachers Retirement System138,486$2.52M0.0%+11.6%0.057%
4/25/2025 Amalgamated Bank43,366$789K0.0%+12.3%0.018%
4/25/2025 KBC Group NV7,339$134K0.0%+14.3%0.003%
(Data available from 1/1/2016 forward)

AMTM Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of AMTM shares?

During the previous two years, 345 institutional investors and hedge funds held shares of Amentum. The most heavily invested institutionals were American Securities LLC ($798.87M), Invesco Ltd. ($312.88M), Vanguard Group Inc. ($297.44M), State Street Corp ($236.31M), Primecap Management Co. CA ($183.12M), Cooper Creek Partners Management LLC ($87.42M), and Kovitz Investment Group Partners LLC ($55.97M).Learn more on AMTM's institutional investors.

What percentage of Amentum stock is owned by institutional investors?

39.93% of Amentum stock is owned by institutional investors. Learn more on AMTM's institutional investor holdings.

Which institutional investors have been buying Amentum stock?

Of the 300 institutional investors that purchased Amentum stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: American Securities LLC ($43.89M), Kovitz Investment Group Partners LLC ($14.79M), Primecap Management Co. CA ($10.06M), Invesco Ltd. ($9.39M), State Street Corp ($7.33M), Wellington Management Group LLP ($3.73M), and Cooper Creek Partners Management LLC ($3.32M).

How much institutional buying is happening at Amentum?

Institutional investors have bought a total of 142,642,475 shares in the last 24 months. This purchase volume represents approximately $2.12B in transactions.

Which Amentum major shareholders have been selling company stock?

Of the 109 institutional investors that sold Amentum stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Kovitz Investment Group Partners LLC ($11.71M), Geode Capital Management LLC ($1.18M), Deutsche Bank AG ($919.31K), Renaissance Technologies LLC ($429.50K), UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC ($400.43K), Focus Partners Wealth ($251.38K), and Envestnet Asset Management Inc. ($220.93K).

How much institutional selling is happening at Amentum?

Institutional investors have sold a total of 19,501,827 shares in the last 24 months. This volume of shares sold represents approximately $373.84M in transactions.



This page (NYSE:AMTM) was last updated on 5/21/2025 by MarketBeat.com Staff
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