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 %
ACB
51
Aristotle Capital Boston
Massachusetts
$9.99M 422,976 -23,636 -5%
Legal & General Group
52
Legal & General Group
United Kingdom
$9.55M 404,673 +13,736 +4%
Comerica Bank
53
Comerica Bank
Texas
$8.54M 361,862 +113,144 +45%
Point72 Asset Management
54
Point72 Asset Management
Connecticut
$8.28M 350,628 +350,628 New
AQR Capital Management
55
AQR Capital Management
Connecticut
$8.27M 350,203 +350,203 New
AllianceBernstein
56
AllianceBernstein
Tennessee
$8.23M 348,684 +293,505 +532%
Citadel Advisors
57
Citadel Advisors
Florida
$8.1M 342,899 -2,583,583 -88%
Ameriprise
58
Ameriprise
Minnesota
$8.09M 342,862 +11,265 +3%
RA
59
Royce & Associates
New York
$7.91M 335,000 +335,000 New
Russell Investments Group
60
Russell Investments Group
United Kingdom
$7.75M 328,182 +95,249 +41%
Swiss National Bank
61
Swiss National Bank
Switzerland
$7.13M 302,191 +42,991 +17%
RhumbLine Advisers
62
RhumbLine Advisers
Massachusetts
$6.78M 287,247 -22,856 -7%
GC
63
Grizzlyrock Capital
Illinois
$5.98M 253,363 +89,137 +54%
ACM
64
Arosa Capital Management
Florida
$5.96M 252,500 -154,400 -38%
Goldman Sachs
65
Goldman Sachs
New York
$5.63M 238,247 -209,331 -47%
California Public Employees Retirement System
66
California Public Employees Retirement System
California
$5.4M 228,921 +41,073 +22%
TCM
67
Telos Capital Management
California
$5.21M 220,718 -35,460 -14%
SEI Investments
68
SEI Investments
Pennsylvania
$5.17M 219,126 +16,976 +8%
YIH
69
Y-Intercept (HK)
Hong Kong
$4.69M 198,726 +198,726 New
Raymond James Financial
70
Raymond James Financial
Florida
$4.48M 189,810 +9,238 +5%
HVP
71
Hudson Value Partners
Florida
$4.38M 185,701 -2,582 -1%
CCB
72
Country Club Bank
Missouri
$4.04M 172,318 +78,566 +84%
AC
73
AWH Capital
Texas
$3.9M 165,250 +122,750 +289%
California State Teachers Retirement System (CalSTRS)
74
California State Teachers Retirement System (CalSTRS)
California
$3.83M 162,297 +31,123 +24%
Prudential Financial
75
Prudential Financial
New Jersey
$3.77M 150,008 +12,254 +9%
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3
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