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.

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

Top Sellers

1
CCPM
1
Cooper Creek Partners Management
New York
$22.3M
2
Allspring Global Investments
2
Allspring Global Investments
North Carolina
$0
3
Wellington Management Group
3
Wellington Management Group
Massachusetts
$0
4
Mirae Asset Global ETFs Holdings
4
Mirae Asset Global ETFs Holdings
Hong Kong
$0
5
CP
5
Castalian Partners
Minnesota
$5.54M
Name Market Value Shares Shares
Change 		Shares
Change %
Mercer Global Advisors
451
Mercer Global Advisors
Colorado
– – -16,207 Closed
National Pension Service
452
National Pension Service
South Korea
– – -15,555 Closed
KCM
453
Kennedy Capital Management
Missouri
– – -15,449 Closed
Baird Financial Group
454
Baird Financial Group
Wisconsin
– – -14,137 Closed
CGIM
455
Cannon Global Investment Management
Florida
– – -13,500 Closed
ETC
456
Exchange Traded Concepts
Oklahoma
– – -13,312 Closed
Amundi
457
Amundi
France
– – -12,908 Closed
SIC
458
SFE Investment Counsel
California
– – -12,830 Closed
EWM
459
Evercore Wealth Management
New York
– – -12,399 Closed
DS
460
DRW Securities
Illinois
– – -12,311 Closed
Pathstone Holdings
461
Pathstone Holdings
New Jersey
– – -12,128 Closed
JFG
462
Jefferies Financial Group
New York
– – -11,830 Closed
BFM
463
Boothbay Fund Management
New York
– – -11,250 Closed
OC
464
Oppenheimer & Co
New York
– – -10,621 Closed
Cetera Investment Advisers
465
Cetera Investment Advisers
Illinois
– – -10,591 Closed
JCM
466
Janney Capital Management
Pennsylvania
– – -10,039 Closed
PHS
467
Pekin Hardy Strauss
Illinois
– – -9,900 Closed
FLC
468
Fifth Lane Capital
Texas
– – -9,775 Closed
VPIM
469
Vanguard Personalized Indexing Management
California
– – -9,651 Closed
SOW
470
State of Wyoming
Wyoming
– – -2,756 Closed
PAS
471
Point72 Asia (Singapore)
Singapore
– – -2,748 Closed
SAM
472
Shell Asset Management
Netherlands
– – -2,684 Closed
HI
473
Horizon Investments
North Carolina
– – -1,712 Closed
HCA
474
Harbor Capital Advisors
Illinois
– – -1,380 Closed
CA
475
Centerpoint Advisors
Massachusetts
– – -1,151 Closed
17 18
19
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