AMTM

Amentum Holdings, Inc.
AMTM

Overview Fund Activity

451 hedge funds and large institutions have $4.73B invested in Amentum Holdings, Inc. in 2025 Q2 according to their latest regulatory filings, with 112 funds opening new positions, 227 increasing their positions, 97 reducing their positions, and 65 closing their positions.

Holders
451
Holders Change
+38
Holders Change %
+9.2%
% of All Funds
6.06%
Holding in Top 10
9
Holding in Top 10 Change
+4
Holding in Top 10 Change %
+80%
% of All Funds
0.12%
New
112
Increased
227
Reduced
97
Closed
65
Calls
$44.4M
Puts
$22.2M
Net Calls
+$22.2M
Net Calls Change
+$1.62M

Top Buyers

1
Millennium Management
1
Millennium Management
New York
$110M
2
Invesco
2
Invesco
Georgia
$462M
3
Norges Bank
3
Norges Bank
Norway
$51M
4
Primecap Management
4
Primecap Management
California
$284M
5
FCM
5
Frontier Capital Management
Massachusetts
$129M

Top Sellers

1
Citadel Advisors
1
Citadel Advisors
Florida
$8.1M
2
Balyasny Asset Management
2
Balyasny Asset Management
Illinois
$0
3
CCPM
3
Cooper Creek Partners Management
New York
$0
4
VC
4
Voss Capital
Texas
$33.1M
5
UBS Group
5
UBS Group
Switzerland
$18.1M
Name Market Value Shares Shares
Change 		Shares
Change %
KHCM
476
Kirtland Hills Capital Management
Ohio
– – -18,542 Closed
Jacobs Levy Equity Management
477
Jacobs Levy Equity Management
New Jersey
– – -17,533 Closed
HHAA
478
Henry H. Armstrong Associates
Pennsylvania
– – -17,081 Closed
PA
479
Paralel Advisors
Colorado
– – -16,329 Closed
Walleye Capital
480
Walleye Capital
New York
– – -14,069 Closed
SSG
481
Summit Securities Group
New York
– – -13,062 Closed
RC
482
Rangeley Capital
Connecticut
– – -12,500 Closed
EW
483
Evoke Wealth
California
– – -12,235 Closed
OGC
484
One68 Global Capital
New York
– – -12,000 Closed
PCM
485
Prelude Capital Management
New York
– – -11,360 Closed
CIM
486
Caldwell Investment Management
Ontario, Canada
– – -11,000 Closed
RSC
487
Red Spruce Capital
Pennsylvania
– – -10,705 Closed
VRS
488
Virginia Retirement Systems
Virginia
– – -10,700 Closed
LAM
489
LECAP Asset Management
United Kingdom
– – -10,437 Closed
Tudor Investment Corp
490
Tudor Investment Corp
Connecticut
– – -10,046 Closed
WT
491
Washington Trust
Rhode Island
– – -7,541 Closed
LB
492
Legacy Bridge
Iowa
– – -6,680 Closed
CF
493
Corebridge Financial
Texas
– – -5,630 Closed
MIM
494
MetLife Investment Management
New Jersey
– – -2,663 Closed
CCM
495
Coldstream Capital Management
Washington
– – -1,941 Closed
Toronto Dominion Bank
496
Toronto Dominion Bank
Ontario, Canada
– – -1,338 Closed
QC
497
Quent Capital
New York
– – -789 Closed
SW
498
SVB Wealth
Massachusetts
– – -669 Closed
MG
499
Mather Group
Illinois
– – -487 Closed
WAG
500
Wiser Advisor Group
Arizona
– – -295 Closed
17 18 19
20
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