AMTM

Amentum Holdings, Inc.
AMTM

Overview Fund Activity

413 hedge funds and large institutions have $3.46B invested in Amentum Holdings, Inc. in 2025 Q1 according to their latest regulatory filings, with 76 funds opening new positions, 110 increasing their positions, 147 reducing their positions, and 96 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
413
Holders Change
-32
Holders Change %
-7.19%
% of All Funds
5.61%
Holding in Top 10
5
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.07%
New
76
Increased
110
Reduced
147
Closed
96
Calls
$62.3M
Puts
$41.7M
Net Calls
+$20.6M
Net Calls Change
-$29.2M

Top Buyers

1
Primecap Management
Primecap Management
California
$183M
2
FCM
Frontier Capital Management
Massachusetts
$65.1M
3
Invesco
Invesco
Georgia
$313M
4
Citadel Advisors
Citadel Advisors
Florida
$53.3M
5
DCM
Discovery Capital Management
Connecticut
$47.9M

Top Sellers

1
CCPM
Cooper Creek Partners Management
New York
$22.3M
2
Allspring Global Investments
Allspring Global Investments
North Carolina
$0
3
Wellington Management Group
Wellington Management Group
Massachusetts
$0
4
Mirae Asset Global ETFs Holdings
Mirae Asset Global ETFs Holdings
Hong Kong
$0
5
CP
Castalian Partners
Minnesota
$5.54M
Name Holding Trade Value Shares
Change 		Shares
Change %
AQR Capital Management
426
AQR Capital Management
Connecticut
– -$1.77M -84,357 Closed
BPWM
427
Badgley Phelps Wealth Managers
Washington
– -$1.52M -72,233 Closed
Arrowstreet Capital
428
Arrowstreet Capital
Massachusetts
– -$1.51M -71,946 Closed
YIH
429
Y-Intercept (HK)
Hong Kong
– -$1.29M -61,268 Closed
AG
430
Algert Global
California
– -$1.2M -56,842 Closed
TI
431
Tidal Investments
Wisconsin
– -$1.04M -49,457 Closed
HCM
432
Hilton Capital Management
New York
– -$964K -45,849 Closed
SA
433
Strategic Advisors
New York
– -$961K -45,705 Closed
Sumitomo Mitsui Trust Group
434
Sumitomo Mitsui Trust Group
Japan
– -$927K -44,085 Closed
ADBIC
435
A.D. Beadell Investment Counsel
Wisconsin
– -$907K -43,155 Closed
Aberdeen Group
436
Aberdeen Group
United Kingdom
– -$793K -35,555 Closed
ProShare Advisors
437
ProShare Advisors
Maryland
– -$653K -31,054 Closed
BFG
438
Berger Financial Group
Minnesota
– -$634K -30,158 Closed
M
439
Murchinson
Ontario, Canada
– -$631K -30,000 Closed
WHG
440
Westwood Holdings Group
Texas
– -$608K -28,890 Closed
IMCOOI
441
Investment Management Corp of Ontario (IMCO)
Canada
– -$593K -28,214 Closed
BAAM
442
Baker Avenue Asset Management
California
– -$520K -24,740 Closed
FC
443
Forte Capital
New York
– -$510K -24,234 Closed
RA
444
Royce & Associates
New York
– -$473K -22,500 Closed
URS
445
Utah Retirement Systems
Utah
– -$433K -20,585 Closed
FIA
446
Foundations Investment Advisors
Arizona
– -$409K -19,458 Closed
Squarepoint
447
Squarepoint
New York
– -$399K -18,989 Closed
QCM
448
QRG Capital Management
Illinois
– -$393K -18,678 Closed
ECM
449
Evergreen Capital Management
Washington
– -$391K -18,605 Closed
Canada Pension Plan Investment Board
450
Canada Pension Plan Investment Board
Ontario, Canada
– -$354K -16,854 Closed
16 17
18
19 20