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
LSERS
126
Louisiana State Employees Retirement System
Louisiana
$1.78M
Treasurer of the State of North Carolina
127
Treasurer of the State of North Carolina
North Carolina
$1.78M
D.E. Shaw & Co
128
D.E. Shaw & Co
New York
$1.73M
Creative Planning
129
Creative Planning
Kansas
$1.69M
Envestnet Asset Management
130
Envestnet Asset Management
Illinois
$1.61M
VGA
131
Vanguard Global Advisers
Pennsylvania
$1.6M
KPF
132
K2 Principal Fund
Ontario, Canada
$1.56M
AB
133
Amalgamated Bank
New York
$1.52M
CAG
134
Crestwood Advisors Group
Massachusetts
$1.48M
WG
135
Winton Group
United Kingdom
$1.45M
Natixis Advisors
136
Natixis Advisors
Massachusetts
$1.42M
MG
137
Marex Group
$1.38M
MFS
138
Mirabella Financial Services
United Kingdom
$1.37M
WAM
139
Wolverine Asset Management
Illinois
$1.35M
HCM
140
Hahn Capital Management
California
$1.33M
Lido Advisors
141
Lido Advisors
California
$1.31M
AAM
142
Advisors Asset Management
Colorado
$1.3M
Victory Capital Management
143
Victory Capital Management
Texas
$1.3M
William Blair & Company
144
William Blair & Company
Illinois
$1.29M
Ohio Public Employees Retirement System (OPERS)
145
Ohio Public Employees Retirement System (OPERS)
Ohio
$1.25M
Barclays
146
Barclays
United Kingdom
$1.22M
MC
147
Maverick Capital
Texas
$1.21M
State of Tennessee, Department of Treasury
148
State of Tennessee, Department of Treasury
Tennessee
$1.21M
HTI
149
Hikari Tsushin Inc
Japan
$1.18M
S
150
Steadtrust
Texas
$1.18M