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 %
PCMK
126
Paragon Capital Management (Kansas)
Kansas
$1.15M +$15.1K +638 +1%
Corient Private Wealth
127
Corient Private Wealth
Florida
$1.14M +$122K +5,159 +12%
WJWM
128
Williams Jones Wealth Management
New York
$1.13M +$225K +9,550 +25%
Susquehanna International Group
129
Susquehanna International Group
Pennsylvania
$1.1M -$11.5M -486,860 -91%
ASRS
130
Arizona State Retirement System
Arizona
$1.09M +$183K +7,768 +20%
AB
131
Amalgamated Bank
New York
$1.08M +$58.3K +2,469 +6%
HTI
132
Hikari Tsushin Inc
Japan
$1.07M +$61.5K +2,603 +6%
AAM
133
Advisors Asset Management
Colorado
$1.07M -$270K -11,419 -20%
Cerity Partners
134
Cerity Partners
New York
$1.07M +$149K +6,312 +16%
Mariner
135
Mariner
Kansas
$1.01M +$266K +11,260 +35%
Bank of Montreal
136
Bank of Montreal
Ontario, Canada
$960K +$123K +5,210 +15%
Ensign Peak Advisors
137
Ensign Peak Advisors
Utah
$958K +$54.9K +2,326 +6%
Wells Fargo
138
Wells Fargo
California
$949K -$242K -10,246 -20%
CHAM
139
Clear Harbor Asset Management
Connecticut
$946K -$11.6K -490 -1%
COPPSERS
140
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$914K +$103K +4,380 +13%
FIG
141
Fortress Investment Group
New York
$900K +$751K +31,819 +506%
Focus Partners Wealth
142
Focus Partners Wealth
Massachusetts
$872K +$311K +13,175 +55%
Manulife (Manufacturers Life Insurance)
143
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$859K -$27.3K -1,157 -3%
TBA
144
Tower Bridge Advisors
Pennsylvania
$851K -$66.8K -2,830 -7%
NAM
145
Nexpoint Asset Management
Texas
$833K -$204K -8,637 -20%
OPERF
146
Oregon Public Employees Retirement Fund
Oregon
$812K +$37.8K +1,600 +5%
Creative Planning
147
Creative Planning
Kansas
$810K +$357K +15,114 +79%
Victory Capital Management
148
Victory Capital Management
Texas
$796K +$90.9K +3,849 +13%
Nisa Investment Advisors
149
Nisa Investment Advisors
Missouri
$794K +$74.2K +3,143 +10%
ATIA
150
American Trust Investment Advisors
New Hampshire
$785K -$57.5K -2,436 -7%
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