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AMTM

Amentum Holdings

486 hedge funds and large institutions have $5.28B invested in Amentum Holdings in 2026 Q1 according to their latest regulatory filings, with 71 funds opening new positions, 150 increasing their positions, 152 reducing their positions, and 60 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 ownership

Funds ownership:

more funds holding

Funds holding:

1% less repeat investments, than reductions

Existing positions increased: 150 | Existing positions reduced: 152

6% less capital invested

Capital invested by funds: $5.64B → $5.28B (-$362M)

10% less funds holding in top 10

Funds holding in top 10: 109 (-1)

Holders
486
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
$134M
Puts
$43M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
OWIM
201
Old West Investment Management
California
$568K
CM
202
Caption Management
Oklahoma
$567K
DA
203
Dover Advisors
Virginia
$552K
MCM
204
Massar Capital Management
Connecticut
$549K
AC
205
Aristeia Capital
Connecticut
$537K
Neuberger Berman Group
206
Neuberger Berman Group
New York
$536K
LIM
207
Lathrop Investment Management
Arkansas
$523K
Bank of Montreal
208
Bank of Montreal
Ontario, Canada
$521K
Deutsche Bank
209
Deutsche Bank
Germany
$518K
MWM
210
Moran Wealth Management
Florida
$511K
AC
211
Allstate Corporation
Illinois
$508K
CSIC
212
Clifford Swan Investment Counsel
California
$501K
Cambridge Investment Research Advisors
213
Cambridge Investment Research Advisors
Iowa
$501K
GFP
214
Gryphon Financial Partners
Ohio
$492K
HighTower Advisors
215
HighTower Advisors
Illinois
$485K
CIBC Asset Management
216
CIBC Asset Management
Ontario, Canada
$481K
MWM
217
Modera Wealth Management
New Jersey
$480K
Balyasny Asset Management
218
Balyasny Asset Management
Illinois
$478K
GC
219
Guidance Capital
Kentucky
$474K
EC
220
EntryPoint Capital
New York
$469K
SNBOSCI
221
Security National Bank of Sioux City Iowa
Iowa
$463K
AG
222
ASO Group
$462K
MOACM
223
Mutual of America Capital Management
New York
$459K
Commonwealth Equity Services
224
Commonwealth Equity Services
Massachusetts
$456K
BA
225
Bridgewater Associates
Connecticut
$445K