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Amentum Holdings

419 hedge funds and large institutions have $3.49B invested in Amentum Holdings in 2025 Q1 according to their latest regulatory filings, with 73 funds opening new positions, 112 increasing their positions, 152 reducing their positions, and 95 closing their positions.

New
Increased
Maintained
Reduced
Closed

49% more call options, than puts

Call options by funds: $62.3M | Put options by funds: $41.7M

10.84% more ownership

Funds ownership: 67.97%78.8% (+11%)

0% more capital invested

Capital invested by funds: $3.48B → $3.49B (+$8.92M)

0% more funds holding in top 10

Funds holding in top 10: 55 (0)

7% less funds holding

Funds holding: 451419 (-32)

23% less first-time investments, than exits

New positions opened: 73 | Existing positions closed: 95

26% less repeat investments, than reductions

Existing positions increased: 112 | Existing positions reduced: 152

Holders
419
Holders Change
-32
Holders Change %
-7.1%
% of All Funds
5.62%
Holding in Top 10
5
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
0.07%
New
73
Increased
112
Reduced
152
Closed
95
Calls
$62.3M
Puts
$41.7M
Net Calls
+$20.6M
Net Calls Change
-$29.2M
Name Holding Trade Value Shares
Change
Change in
Stake
AS
1
American Securities
New York
$799M
BlackRock
2
BlackRock
New York
$332M +$30M +1,474,218 +9%
Invesco
3
Invesco
Georgia
$313M +$67.9M +3,334,871 +24%
Vanguard Group
4
Vanguard Group
Pennsylvania
$297M -$4.07M -199,887 -1%
Primecap Management
5
Primecap Management
California
$183M +$74.3M +3,647,210 +57%
State Street
6
State Street
Massachusetts
$120M +$2.49M +122,098 +2%
Fidelity Investments
7
Fidelity Investments
Massachusetts
$80.2M +$41M +2,013,896 +84%
FCM
8
Frontier Capital Management
Massachusetts
$65.1M +$72.9M +3,578,732 New
TSW
9
Thompson Siegel & Walmsley
Virginia
$60.5M +$28.1M +1,377,694 +71%
Kovitz Investment Group Partners
10
Kovitz Investment Group Partners
Illinois
$56M -$1.57M -76,957 -2%
Citadel Advisors
11
Citadel Advisors
Florida
$53.3M +$51.6M +2,531,660 +641%
DCM
12
Discovery Capital Management
Connecticut
$47.9M +$44.1M +2,165,630 +465%
VanEck Associates
13
VanEck Associates
New York
$47.4M +$30M +1,471,279 +130%
RCG
14
Ruane, Cunniff & Goldfarb
New York
$43.6M -$881K -43,255 -2%
Geode Capital Management
15
Geode Capital Management
Massachusetts
$41.9M +$6.86M +336,749 +17%
VC
16
Voss Capital
Texas
$40.4M +$36.1M +1,770,891 +394%
Fidelity International
17
Fidelity International
Bermuda
$40.2M +$8.47M +415,760 +23%
Morgan Stanley
18
Morgan Stanley
New York
$38.1M +$12.4M +610,327 +41%
Millennium Management
19
Millennium Management
New York
$36.6M +$16.6M +815,218 +68%
Balyasny Asset Management
20
Balyasny Asset Management
Illinois
$34.2M +$38.3M +1,880,887 New
Norges Bank
21
Norges Bank
Norway
$31.2M +$5.63M +276,379 +19%
ACM
22
Arvin Capital Management
Texas
$30.7M +$14.7M +721,952 +75%
Thrivent Financial for Lutherans
23
Thrivent Financial for Lutherans
Minnesota
$29.5M +$194K +9,528 +0.6%
Charles Schwab
24
Charles Schwab
California
$28.2M +$5.8M +284,901 +23%
UBS Group
25
UBS Group
Switzerland
$27.8M +$8.11M +398,390 +35%