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 %
CAL
376
Capital Analysts LLC
Pennsylvania
$1K – – –
NS
377
NBC Securities
Alabama
$1K +$1K +70 New
AIC
378
Archer Investment Corporation
Indiana
$914 – – –
SIM
379
Synergy Investment Management
Florida
$892 – – –
PS
380
Principal Securities
Iowa
$799 – – –
DF
381
Dunhill Financial
United Kingdom
$790 -$301 -8 -28%
1IA
382
1620 Investment Advisors
Massachusetts
$728 -$109 -6 -13%
MCM
383
MV Capital Management
Maryland
$601 +$474 +26 +371%
CFD
384
Creative Financial Designs
Indiana
$582 – – –
BIA
385
Bell Investment Advisors
California
$546 -$73 -4 -12%
SS
386
SBI Securities
Japan
$528 -$1.78K -98 -77%
CFO
387
CVA Family Office
Colorado
$528 +$528 +29 New
HI
388
Harbour Investments
Wisconsin
$510 – – –
RWM
389
Rialto Wealth Management
New York
$492 +$492 +27 New
JWA
390
JFS Wealth Advisors
Pennsylvania
$474 -$91 -5 -16%
S
391
Sachetta
Massachusetts
$419 – – –
FGAM
392
Financial Gravity Asset Management
Texas
$419 +$419 +23 New
AF
393
Advisornet Financial
Minnesota
$400 – – –
RTL
394
Red Tortoise LLC
Georgia
$400 – – –
WA
395
Whipplewood Advisors
Colorado
$382 -$1.62K -17 -81%
SC
396
SouthState Corp
Florida
$364 +$364 +20 New
NMG
397
New Millennium Group
Utah
$328 – – –
TCM
398
TD Capital Management
Tennessee
$309 – – –
CAM
399
Creekmur Asset Management
Illinois
$291 +$291 +16 New
PWMG
400
Prestige Wealth Management Group
New Jersey
$255 – – –
14 15
16
17 18