AMTM

Amentum Holdings

476 hedge funds and large institutions have $5.64B invested in Amentum Holdings in 2025 Q4 according to their latest regulatory filings, with 85 funds opening new positions, 130 increasing their positions, 159 reducing their positions, and 58 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

more first-time investments, than exits

New positions opened: | Existing positions closed:

more capital invested

Capital invested by funds: $ → $

more funds holding in top 10

Funds holding in top 10:

4.13% more ownership

Funds ownership: 79.49%83.62% (+4.1%)

3% more funds holding

Funds holding: 460476 (+16)

18% less repeat investments, than reductions

Existing positions increased: 130 | Existing positions reduced: 159

Holders
476
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
10
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$73.7M
Puts
$30.3M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
Truist Financial
201
Truist Financial
North Carolina
$537K
BA
202
Bridgewater Associates
Connecticut
$529K
VPIM
203
Vanguard Personalized Indexing Management
California
$515K
AG
204
ASO Group
$514K
SCM
205
Sterling Capital Management
North Carolina
$510K
MOACM
206
Mutual of America Capital Management
New York
$508K
Cambridge Investment Research Advisors
207
Cambridge Investment Research Advisors
Iowa
$502K
IVP
208
Intrinsic Value Partners
Arizona
$484K
Commonwealth Equity Services
209
Commonwealth Equity Services
Massachusetts
$479K
IPW
210
Impact Partnership Wealth
Georgia
$473K
GFP
211
Gryphon Financial Partners
Ohio
$472K
LIM
212
Leavell Investment Management
Alabama
$468K
PA
213
Profund Advisors
Maryland
$457K
TFA
214
Toth Financial Advisory
Virginia
$455K
Mackenzie Financial
215
Mackenzie Financial
Ontario, Canada
$453K
Mercer Global Advisors
216
Mercer Global Advisors
Colorado
$453K
SF
217
Summit Financial
New Jersey
$440K
LCM
218
LuminArx Capital Management
New York
$435K
HighTower Advisors
219
HighTower Advisors
Illinois
$425K
FBT
220
First Bank & Trust
South Dakota
$411K
First Manhattan
221
First Manhattan
New York
$409K
Public Employees Retirement Association of Colorado
222
Public Employees Retirement Association of Colorado
Colorado
$392K
GIP
223
Granite Investment Partners
California
$384K
ECM
224
Evergreen Capital Management
Washington
$383K
QCG
225
Quadrant Capital Group
Ohio
$379K