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

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 Holding Trade Value Shares
Change 		Shares
Change %
KRS
226
Kentucky Retirement Systems
Kentucky
$235K -$3.33K -141 -1%
ECM
227
ExodusPoint Capital Management
New York
$231K +$231K +9,801 New
CWIG
228
Chung Wu Investment Group
Texas
$230K +$230K +9,744 New
SRC
229
Shufro Rose & Co
New York
$230K -$7.28K -400 -3%
AWM
230
Aberdeen Wealth Management
Illinois
$224K +$224K +9,491 New
TI
231
Tidal Investments
Wisconsin
$223K +$223K +9,430 New
BFPW
232
BOK Financial Private Wealth
Colorado
$221K -$55.4K -2,345 -20%
URS
233
Utah Retirement Systems
Utah
$217K +$217K +9,183 New
OC
234
Oppenheimer & Co
New York
$216K +$216K +9,163 New
EC
235
EntryPoint Capital
New York
$215K +$215K +9,103 New
CF
236
Cantor Fitzgerald
New York
$215K -$530K -22,427 -71%
EI
237
Ethic Inc
New York
$215K +$215K +9,149 New
SC
238
Syon Capital
California
$207K +$207K +8,752 New
MAA
239
Mraz Amerine & Associates
California
$202K +$202K +8,550 New
CI
240
CX Institutional
Indiana
$194K +$180K +7,603 +1,240%
Canada Pension Plan Investment Board
241
Canada Pension Plan Investment Board
Ontario, Canada
$191K +$191K +8,094 New
ST
242
Smithfield Trust
Pennsylvania
$186K +$802 +34 +0.4%
SG Americas Securities
243
SG Americas Securities
New York
$186K +$186K +7,882 New
IIM
244
Intact Investment Management
Quebec, Canada
$173K +$9.89K +419 +6%
ANBT
245
American National Bank & Trust
Texas
$160K +$9.16K +388 +6%
KBC Group
246
KBC Group
Belgium
$145K -$28.7K -1,213 -17%
PAS
247
Point72 Asia (Singapore)
Singapore
$108K +$108K +4,579 New
GI
248
GAMMA Investing
California
$105K +$30.8K +1,306 +42%
TRCT
249
Tower Research Capital (TRC)
New York
$103K +$66.3K +2,810 +182%
QL
250
Quarry LP
New York
$102K +$63K +2,667 +160%
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