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AMTM

AMTM

Amentum Holdings, Inc.Industrials

Institutional holders
465
As of Q2 2026
Total 13F value
$4.7B
Sum of disclosed positions
New positions
62
This quarter
Sold positions
75
This quarter

Top holders

Institutions with disclosed positions in this stock

FundValueShares% PortfolioChange
AMERICAN SECURITIES LLC

American Securities Llc

$930.7M45.03M24.79%Unchanged
Invesco Ltd.

Invesco Ltd.

$515.8M24.95M0.02%+16.2%
BlackRock, Inc.

Blackrock, Inc.

$370.1M17.91M0.00%+0.4%
PRIMECAP MANAGEMENT CO/CA/

Primecap Management Co/Ca/

$253.9M12.29M0.15%+1.7%
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM

California State Teachers Retirement System

$187M3.97M0.02%+1952.1%
VANGUARD PORTFOLIO MANAGEMENT LLC

Vanguard Portfolio Management Llc

$164.3M7.95M0.01%+1.2%
VANGUARD CAPITAL MANAGEMENT LLC

Vanguard Capital Management Llc

$138.7M6.71M0.00%+0.9%
FMR LLC

Fmr Llc

$117.4M5.68M0.00%+1.8%
DIMENSIONAL FUND ADVISORS LP

Dimensional Fund Advisors Lp

$114.5M5.54M0.02%+46.2%
STATE STREET CORP

State Street Corporation

$106.5M5.15M0.00%+1.4%
FRONTIER CAPITAL MANAGEMENT CO LLC

Frontier Capital Management Co Llc

$85.7M4.14M0.80%-15.9%
Verition Fund Management LLC

Verition Fund Management Llc

$83.5M4.04M0.21%+55.6%
Troluce Capital Advisors LLC

Troluce Capital Advisors Llc

$73.7M3.57M7.59%+256.5%
GEODE CAPITAL MANAGEMENT, LLC

Geode Capital Management, Llc

$56.2M2.72M0.00%-3.5%
GOLDMAN SACHS GROUP INC

Goldman Sachs Group

$56.1M2.71M0.00%+139.7%
MORGAN STANLEY

Morgan Stanley

$55M2.66M0.00%+19.1%
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.

Mirae Asset Global Etfs Holdings Ltd.

$47.9M2.32M0.06%-16.8%
THOMPSON SIEGEL & WALMSLEY LLC

Thompson Siegel & Walmsley Llc

$47.2M2.28M0.85%+49.5%
MILLENNIUM MANAGEMENT LLC

Millennium Management

$44M2.13M0.02%+237.2%
Sixth Street Partners Management Company, L.P.

Sixth Street Partners Management Company, L.P.

$43.8M2.12M0.01%New Position
CHARLES SCHWAB INVESTMENT MANAGEMENT INC

Charles Schwab Investment Management Inc

$43.8M2.12M0.01%+2.5%
THRIVENT FINANCIAL FOR LUTHERANS

Thrivent Financial For Lutherans

$43.5M2.11M0.04%+0.3%
BANK OF AMERICA CORP /DE/

Bank Of America

$42.2M2.04M0.00%-15.1%
SEGRA CAPITAL MANAGEMENT, LLC

Segra Capital Management, Llc

$42.1M2.04M8.50%+26.4%
VAN ECK ASSOCIATES CORP

Van Eck Associates Corp

$41.1M1.99M0.02%+263.2%
VOYA INVESTMENT MANAGEMENT LLC

Voya Investment Management Llc

$40.8M1.97M0.04%+64.6%
UBS Group AG

Ubs Group Ag

$31.9M1.55M0.00%-9.7%
NORGES BANK

Norges Bank

$31.3M1.52M0.00%New Position
Permian Investment Partners, LP

Permian Investment Partners, Lp

$29.6M1.43M3.25%-8.6%
CITADEL ADVISORS LLC

Citadel Advisors

$27.7M1.34M0.00%+731.7%
683 Capital Management, LLC

683 Capital Management, Llc

$22.7M1.10M1.12%+41.9%
PUBLIC SECTOR PENSION INVESTMENT BOARD

Public Sector Pension Investment Board

$21.9M1.06M0.03%-3.8%
LOOMIS SAYLES & CO L P

Loomis Sayles & Co L P

$21.5M1.04M0.02%-3.6%
Qube Research & Technologies Ltd

Qube Research & Technologies Ltd

$21.4M1.03M0.02%+1237.0%
NORTHERN TRUST CORP

Northern Trust Corp

$21.3M1.03M0.00%+4.7%
VANGUARD FIDUCIARY TRUST CO

Vanguard Fiduciary Trust Co

$20M968.5K0.00%+2.2%
CACTI ASSET MANAGEMENT LLC

Cacti Asset Management Llc

$18.2M881.7K0.91%Unchanged
Bank of New York Mellon Corp

Bank Of New York Mellon Corp

$18.2M878.1K0.00%-3.4%
Russell Investments Group, Ltd.

Russell Investments Group, Ltd.

$17.4M840.6K0.01%+17.8%
AVENIR CORP

Avenir Corp

$16.8M811.7K2.04%-3.5%
WELLS FARGO & COMPANY/MN

Wells Fargo & Company/Mn

$15.5M750.2K0.00%+17.8%
PRINCIPAL FINANCIAL GROUP INC

Principal Financial Group Inc

$15.3M742.4K0.01%-0.3%
Ancora Advisors LLC

Ancora Advisors, Llc

$14.8M715.7K0.28%+1.8%
ROYCE & ASSOCIATES LP

Royce & Associates Lp

$14.4M697.4K0.12%+26.9%
HRT FINANCIAL LP

Hrt Financial Lp

$13.9M671.8K0.03%New Position
Point72 Asset Management, L.P.

Point72 Asset Management

$13.4M650.0K0.01%-60.1%
EXCHANGE TRADED CONCEPTS, LLC

Exchange Traded Concepts, Llc

$12.6M610.6K0.03%+3.5%
AQR CAPITAL MANAGEMENT LLC

Aqr Capital Management Llc

$12.4M601.9K0.00%+18.5%
FIRST TRUST ADVISORS LP

First Trust Advisors Lp

$11.3M547.9K0.01%+140.2%
Ruane, Cunniff & Goldfarb L.P.

Ruane, Cunniff & Goldfarb L.P.

$11.1M537.2K0.17%-66.9%

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