AMTM

Amentum Holdings, Inc.
AMTM

Overview Fund Activity

453 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, 99 reducing their positions, and 65 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
453
Holders Change
+40
Holders Change %
+9.69%
% of All Funds
6.08%
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
99
Closed
65
Calls
$56.6M
Puts
$31.3M
Net Calls
+$25.2M
Net Calls Change
+$4.65M

Top Buyers

1
Millennium Management
Millennium Management
New York
$110M
2
Invesco
Invesco
Georgia
$462M
3
Primecap Management
Primecap Management
California
$284M
4
FCM
Frontier Capital Management
Massachusetts
$129M
5
Mirae Asset Global ETFs Holdings
Mirae Asset Global ETFs Holdings
Hong Kong
$32.6M

Top Sellers

1
Citadel Advisors
Citadel Advisors
Florida
$8.1M
2
Balyasny Asset Management
Balyasny Asset Management
Illinois
$0
3
CCPM
Cooper Creek Partners Management
New York
$0
4
VC
Voss Capital
Texas
$33.1M
5
UBS Group
UBS Group
Switzerland
$18.1M
Name Holding Trade Value Shares
Change 		Shares
Change %
Two Sigma Advisers
476
Two Sigma Advisers
New York
– -$464K -25,500 Closed
A
477
AlphaQuest
New York
– -$433K -23,780 Closed
KHCM
478
Kirtland Hills Capital Management
Ohio
– -$348K -18,542 Closed
Jacobs Levy Equity Management
479
Jacobs Levy Equity Management
New Jersey
– -$319K -17,533 Closed
HHAA
480
Henry H. Armstrong Associates
Pennsylvania
– -$311K -17,081 Closed
PA
481
Paralel Advisors
Colorado
– -$297K -16,329 Closed
Walleye Capital
482
Walleye Capital
New York
– -$256K -14,069 Closed
SSG
483
Summit Securities Group
New York
– -$238K -13,062 Closed
RC
484
Rangeley Capital
Connecticut
– -$228K -12,500 Closed
EW
485
Evoke Wealth
California
– -$223K -12,235 Closed
OGC
486
One68 Global Capital
New York
– -$218K -12,000 Closed
PCM
487
Prelude Capital Management
New York
– -$207K -11,360 Closed
CIM
488
Caldwell Investment Management
Ontario, Canada
– -$198K -11,000 Closed
RSC
489
Red Spruce Capital
Pennsylvania
– -$195K -10,705 Closed
VRS
490
Virginia Retirement Systems
Virginia
– -$195K -10,700 Closed
LAM
491
LECAP Asset Management
United Kingdom
– -$190K -10,437 Closed
Tudor Investment Corp
492
Tudor Investment Corp
Connecticut
– -$183K -10,046 Closed
WT
493
Washington Trust
Rhode Island
– -$137K -7,541 Closed
LB
494
Legacy Bridge
Iowa
– -$122K -6,680 Closed
CF
495
Corebridge Financial
Texas
– -$102K -5,630 Closed
MIM
496
MetLife Investment Management
New Jersey
– -$48.5K -2,663 Closed
CCM
497
Coldstream Capital Management
Washington
– -$35.3K -1,941 Closed
Toronto Dominion Bank
498
Toronto Dominion Bank
Ontario, Canada
– -$24.4K -1,338 Closed
QC
499
Quent Capital
New York
– -$14.4K -789 Closed
SW
500
SVB Wealth
Massachusetts
– -$12.2K -669 Closed
17 18 19
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