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 Holding Trade Value Shares
Change 		Shares
Change %
SB
151
SIG Brokerage
New York
$638K +$638K +35,052 New
Zurich Cantonal Bank
152
Zurich Cantonal Bank
Switzerland
$636K -$29.1K -1,600 -4%
COPPSERS
153
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$625K +$143K +7,862 +30%
Janney Montgomery Scott
154
Janney Montgomery Scott
Pennsylvania
$615K +$615K +33,767 New
WAM
155
Wolverine Asset Management
Illinois
$605K +$605K +33,240 New
OPERF
156
Oregon Public Employees Retirement Fund
Oregon
$597K +$65.5K +3,600 +12%
SI
157
Stephens Inc
Arkansas
$596K -$72.3K -3,973 -11%
Wolverine Trading
158
Wolverine Trading
Illinois
$593K -$692K -38,287 -54%
ADEF
159
ABS Direct Equity Fund
Connecticut
$592K +$592K +32,500 New
Mariner
160
Mariner
Kansas
$577K -$130K -7,155 -18%
CF
161
Cantor Fitzgerald
New York
$574K +$574K +31,514 New
EHC
162
Everett Harris & Co
California
$572K -$191K -10,478 -25%
Renaissance Technologies
163
Renaissance Technologies
New York
$571K +$371K +20,400 +185%
GCP
164
GSA Capital Partners
United Kingdom
$555K +$555K +30,488 New
Nisa Investment Advisors
165
Nisa Investment Advisors
Missouri
$555K -$82.1K -4,512 -13%
Victory Capital Management
166
Victory Capital Management
Texas
$543K -$227K -12,460 -29%
MIM
167
Marco Investment Management
Georgia
$532K -$122K -6,730 -19%
CSIC
168
Clifford Swan Investment Counsel
California
$521K -$14.6K -800 -3%
QT
169
Quantbot Technologies
New York
$516K +$516K +28,362 New
Commonwealth Equity Services
170
Commonwealth Equity Services
Massachusetts
$512K -$81.3K -4,465 -14%
CC
171
Carlson Capital
Texas
$510K +$510K +28,000 New
MWM
172
Modera Wealth Management
New Jersey
$507K -$134K -7,343 -21%
Jones Financial Companies
173
Jones Financial Companies
Missouri
$499K -$170K -9,415 -25%
Two Sigma Advisers
174
Two Sigma Advisers
New York
$464K +$464K +25,500 New
RCG
175
Rock Creek Group
District of Columbia
$455K +$455K +25,000 New
5 6
7
8 9