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
MSRPS
176
Maryland State Retirement & Pension System
Maryland
$778K
Corient Private Wealth
177
Corient Private Wealth
Florida
$769K
KA
178
Kerrisdale Advisers
Florida
$761K
WSFS
179
Wilmington Savings Fund Society
Delaware
$760K
LAI
180
Legal Advantage Investments
California
$754K
Walleye Trading
181
Walleye Trading
New York
$745K
OAM
182
Oppenheimer Asset Management
New York
$734K
PMAM
183
Picton Mahoney Asset Management
Ontario, Canada
$710K
NPT
184
National Philanthropic Trust
Pennsylvania
$706K
Osaic Holdings
185
Osaic Holdings
Arizona
$706K
ET
186
Entropy Technologies
New York
$701K
Pictet Asset Management
187
Pictet Asset Management
Switzerland
$701K
SIA
188
Sit Investment Associates
Minnesota
$683K
SNBOSD
189
Security National Bank of So Dak
Iowa
$681K
Cetera Investment Advisers
190
Cetera Investment Advisers
Illinois
$636K
US Bancorp
191
US Bancorp
Minnesota
$633K
PAM
192
Peak Asset Management
Colorado
$626K
XT
193
XTX Topco
Cayman Islands
$620K
SI
194
Stephens Inc
Arkansas
$610K
AI
195
Atom Investors
Texas
$595K
TFA
196
Toth Financial Advisory
Virginia
$583K
Stifel Financial
197
Stifel Financial
Missouri
$572K
NRS
198
Neville Rodie & Shaw
New York
$569K
Pathstone Holdings
199
Pathstone Holdings
New Jersey
$568K
OWIM
200
Old West Investment Management
California
$568K