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Amentum Holdings

483 hedge funds and large institutions have $5.64B invested in Amentum Holdings in 2025 Q4 according to their latest regulatory filings, with 88 funds opening new positions, 133 increasing their positions, 158 reducing their positions, and 57 closing their positions.

New
Increased
Maintained
Reduced
Closed

143% more call options, than puts

Call options by funds: $73.7M | Put options by funds: $30.3M

54% more first-time investments, than exits

New positions opened: 88 | Existing positions closed: 57

22% more capital invested

Capital invested by funds: $4.63B → $5.64B (+$1.01B)

11% more funds holding in top 10

Funds holding in top 10: 910 (+1)

5% more funds holding

Funds holding: 462483 (+21)

4.16% more ownership

Funds ownership: 79.49%83.65% (+4.2%)

16% less repeat investments, than reductions

Existing positions increased: 133 | Existing positions reduced: 158

Holders
483
Holders Change
+21
Holders Change %
+4.55%
% of All Funds
5.88%
Holding in Top 10
10
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+11.11%
% of All Funds
0.12%
New
88
Increased
133
Reduced
158
Closed
57
Calls
$73.7M
Puts
$30.3M
Net Calls
+$43.4M
Net Calls Change
+$35.8M
Name Holding Trade Value Shares
Change
Change in
Stake
Nisa Investment Advisors
151
Nisa Investment Advisors
Missouri
$1.04M -$2.53K -99 -0.3%
WJWM
152
Williams Jones Wealth Management
New York
$1.03M -$31.1K -1,217 -3%
OPERF
153
Oregon Public Employees Retirement Fund
Oregon
$1.02M +$15.3K +600 +2%
Marshall Wace
154
Marshall Wace
United Kingdom
$1.02M +$897K +35,084 New
BHCM
155
Brevan Howard Capital Management
Jersey
$1.02M +$895K +35,018 New
TBA
156
Tower Bridge Advisors
Pennsylvania
$991K -$77.3K -3,022 -8%
TI
157
Tidal Investments
Wisconsin
$985K +$349K +13,663 +67%
Zurich Cantonal Bank
158
Zurich Cantonal Bank
Switzerland
$970K +$99.7K +3,900 +13%
Universal-Beteiligungs- und Servicegesellschaft
159
Universal-Beteiligungs- und Servicegesellschaft
Germany
$963K -$117K -4,572 -12%
Canada Pension Plan Investment Board
160
Canada Pension Plan Investment Board
Ontario, Canada
$957K +$637K +24,900 +308%
LCM
161
Landscape Capital Management
New Jersey
$956K +$843K +32,981 New
OTL
162
Oak Thistle LLC
New York
$956K +$842K +32,956 New
CAPTRUST Financial Advisors
163
CAPTRUST Financial Advisors
North Carolina
$926K +$57.8K +2,262 +8%
Pathstone Holdings
164
Pathstone Holdings
New Jersey
$926K +$447K +17,501 +121%
DT
165
DBA Trading
Florida
$905K +$797K +31,196 New
DTL
166
Dynamic Technology Lab
Singapore
$895K +$317K +12,405 +67%
Stifel Financial
167
Stifel Financial
Missouri
$886K -$125K -4,908 -14%
MSRPS
168
Maryland State Retirement & Pension System
Maryland
$867K +$11.8K +462 +2%
ATIA
169
American Trust Investment Advisors
New Hampshire
$846K -$33.4K -1,308 -4%
Osaic Holdings
170
Osaic Holdings
Arizona
$845K +$64.9K +2,537 +10%
Group One Trading
171
Group One Trading
Illinois
$826K +$202K +7,891 +38%
NPT
172
National Philanthropic Trust
Pennsylvania
$796K -$163K -6,390 -19%
WSFS
173
Wilmington Savings Fund Society
Delaware
$779K +$161K +6,291 +31%
SNBOSD
174
Security National Bank of So Dak
Iowa
$773K -$3.68K -144 -0.5%
SIA
175
Sit Investment Associates
Minnesota
$760K