AMTM

Amentum Holdings

450 hedge funds and large institutions have $4.63B invested in Amentum Holdings in 2025 Q3 according to their latest regulatory filings, with 76 funds opening new positions, 102 increasing their positions, 175 reducing their positions, and 69 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 funds holding in top 10

Funds holding in top 10:

less capital invested

Capital invested by funds: $ → $

1% less funds holding

Funds holding: 456450 (-6)

2.87% less ownership

Funds ownership: 82.31%79.44% (-2.9%)

42% less repeat investments, than reductions

Existing positions increased: 102 | Existing positions reduced: 175

Holders
450
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
9
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$22.9M
Puts
$15.4M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
Manulife (Manufacturers Life Insurance)
151
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$853K
Stifel Financial
152
Stifel Financial
Missouri
$849K
OPERF
153
Oregon Public Employees Retirement Fund
Oregon
$826K
Cerity Partners
154
Cerity Partners
New York
$795K
MCM
155
Massar Capital Management
Connecticut
$795K
Focus Partners Wealth
156
Focus Partners Wealth
Massachusetts
$780K
Franklin Resources
157
Franklin Resources
California
$775K
Jones Financial Companies
158
Jones Financial Companies
Missouri
$766K
AAM
159
Advisors Asset Management
Colorado
$744K
ATIA
160
American Trust Investment Advisors
New Hampshire
$730K
Ensign Peak Advisors
161
Ensign Peak Advisors
Utah
$718K
CAPTRUST Financial Advisors
162
CAPTRUST Financial Advisors
North Carolina
$711K
SM
163
Sciencast Management
New Jersey
$711K
Zurich Cantonal Bank
164
Zurich Cantonal Bank
Switzerland
$707K
MSRPS
165
Maryland State Retirement & Pension System
Maryland
$705K
MAA
166
Mraz Amerine & Associates
California
$699K
SG Americas Securities
167
SG Americas Securities
New York
$696K
Victory Capital Management
168
Victory Capital Management
Texas
$692K
CSIC
169
Clifford Swan Investment Counsel
California
$672K
SC
170
Savant Capital
Illinois
$657K
Osaic Holdings
171
Osaic Holdings
Arizona
$645K
SNBOSD
172
Security National Bank of So Dak
Iowa
$642K
Susquehanna International Group
173
Susquehanna International Group
Pennsylvania
$634K
NRS
174
Neville Rodie & Shaw
New York
$633K
SIA
175
Sit Investment Associates
Minnesota
$628K