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.

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
1
Primecap Management
California
$183M
2
FCM
2
Frontier Capital Management
Massachusetts
$65.1M
3
Invesco
3
Invesco
Georgia
$313M
4
Citadel Advisors
4
Citadel Advisors
Florida
$53.3M
5
DCM
5
Discovery Capital Management
Connecticut
$47.9M

Top Sellers

1
CCPM
1
Cooper Creek Partners Management
New York
$22.3M
2
Allspring Global Investments
2
Allspring Global Investments
North Carolina
$0
3
Wellington Management Group
3
Wellington Management Group
Massachusetts
$0
4
Mirae Asset Global ETFs Holdings
4
Mirae Asset Global ETFs Holdings
Hong Kong
$0
5
CP
5
Castalian Partners
Minnesota
$5.54M
Name Market Value Shares Shares
Change 		Shares
Change %
Prudential Financial
76
Prudential Financial
New Jersey
$2.7M 137,754 +15,180 +12%
Marshall Wace
77
Marshall Wace
United Kingdom
$2.68M 147,352 +147,352 New
New York State Teachers Retirement System (NYSTRS)
78
New York State Teachers Retirement System (NYSTRS)
New York
$2.52M 138,486 +14,364 +12%
California State Teachers Retirement System (CalSTRS)
79
California State Teachers Retirement System (CalSTRS)
California
$2.39M 131,174 -245 -0.2%
Janus Henderson Group
80
Janus Henderson Group
United Kingdom
$2.37M 131,000 +64,761 +98%
KTA
81
Keeley-Teton Advisors
Illinois
$2.33M 128,081 +110,324 +621%
ECM
82
Eisler Capital Management
United Kingdom
$2.31M 126,889 +126,889 New
Citigroup
83
Citigroup
New York
$2.14M 117,809 -209,953 -64%
WG
84
Winton Group
United Kingdom
$2.12M 116,680 +51,932 +80%
State Board of Administration of Florida Retirement System
85
State Board of Administration of Florida Retirement System
Florida
$2.09M 114,636 – –
Group One Trading
86
Group One Trading
Illinois
$1.91M 104,684 +18,648 +22%
AGM
87
Alpine Global Management
New York
$1.82M 100,000 +50,000 +100%
SGM
88
Seven Grand Managers
New York
$1.82M 100,000 +100,000 New
State of New Jersey Common Pension Fund D
89
State of New Jersey Common Pension Fund D
New Jersey
$1.78M 97,653 +1,976 +2%
Envestnet Asset Management
90
Envestnet Asset Management
Illinois
$1.77M 97,188 -15,035 -13%
State of Wisconsin Investment Board
91
State of Wisconsin Investment Board
Wisconsin
$1.74M 95,714 +21,091 +28%
CCB
92
Country Club Bank
Missouri
$1.69M 93,752 +61,158 +188%
LPL Financial
93
LPL Financial
California
$1.69M 93,022 -25,760 -22%
NGM
94
North Growth Management
British Columbia, Canada
$1.67M 92,000 +1,000 +1%
Nomura Holdings
95
Nomura Holdings
Japan
$1.64M 89,943 +75,380 +518%
T. Rowe Price Associates
96
T. Rowe Price Associates
Maryland
$1.6M 88,101 +25,975 +42%
JPMorgan Chase & Co
97
JPMorgan Chase & Co
New York
$1.6M 87,714 -25,960 -23%
CAG
98
Crestwood Advisors Group
Massachusetts
$1.47M 80,559 -12,963 -14%
SOADOR
99
State of Alaska Department of Revenue
Alaska
$1.44M 79,345 +8,898 +13%
State of Tennessee, Department of Treasury
100
State of Tennessee, Department of Treasury
Tennessee
$1.38M 75,568 +33,045 +78%
2 3
4
5 6