AMTM

Amentum Holdings

482 hedge funds and large institutions have $5.27B invested in Amentum Holdings in 2026 Q1 according to their latest regulatory filings, with 71 funds opening new positions, 148 increasing their positions, 152 reducing their positions, and 59 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:

3% less repeat investments, than reductions

Existing positions increased: 148 | Existing positions reduced: 152

6% less capital invested

Capital invested by funds: $5.64B → $5.27B (-$364M)

10% less funds holding in top 10

Funds holding in top 10: 109 (-1)

Holders
482
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
State Board of Administration of Florida Retirement System
101
State Board of Administration of Florida Retirement System
Florida
$3.15M
BMCM
102
Bryn Mawr Capital Management
Pennsylvania
$3.05M
SFM
103
Soros Fund Management
New York
$2.81M
State of Wisconsin Investment Board
104
State of Wisconsin Investment Board
Wisconsin
$2.66M
AG
105
Algert Global
California
$2.63M
SGA
106
Strategic Global Advisors
California
$2.5M
GI
107
GAMCO Investors
Connecticut
$2.49M
LPL Financial
108
LPL Financial
California
$2.32M
BFM
109
Boothbay Fund Management
New York
$2.25M
IMRF
110
Illinois Municipal Retirement Fund
Illinois
$2.18M
Wealth Enhancement Advisory Services
111
Wealth Enhancement Advisory Services
Minnesota
$2.14M
AllianceBernstein
112
AllianceBernstein
Tennessee
$2.14M
JP Morgan Chase
113
JP Morgan Chase
New York
$2.13M
CA
114
CSM Advisors
Pennsylvania
$2.12M
Citadel Advisors
115
Citadel Advisors
Florida
$2.1M
Qube Research & Technologies (QRT)
116
Qube Research & Technologies (QRT)
United Kingdom
$2.02M
BHCM
117
Brevan Howard Capital Management
Jersey
$2.01M
SOADOR
118
State of Alaska Department of Revenue
Alaska
$1.98M
MAA
119
Mraz Amerine & Associates
California
$1.88M
OTL
120
Oak Thistle LLC
New York
$1.87M
RCG
121
Ridge Creek Global
Ohio
$1.84M
PFSRSONJ
122
Police & Firemen's Retirement System of New Jersey
New Jersey
$1.83M
State of New Jersey Common Pension Fund D
123
State of New Jersey Common Pension Fund D
New Jersey
$1.83M
GF
124
Gabelli Funds
New York
$1.82M
Janus Henderson Group
125
Janus Henderson Group
United Kingdom
$1.81M