AMTM

Amentum Holdings

459 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, 104 increasing their positions, 178 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

Funds holding:

more funds holding in top 10

Funds holding in top 10:

2% less capital invested

Capital invested by funds: $4.73B → $4.63B (-$98.4M)

2.85% less ownership

Funds ownership: 82.32%79.48% (-2.8%)

42% less repeat investments, than reductions

Existing positions increased: 104 | Existing positions reduced: 178

Holders
459
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
CBA
251
Coastal Bridge Advisors
Connecticut
$204K
WTA
252
Washington Trust Advisors
Massachusetts
$198K
Canada Pension Plan Investment Board
253
Canada Pension Plan Investment Board
Ontario, Canada
$194K
CI
254
CX Institutional
Indiana
$193K
Optiver Holding
255
Optiver Holding
Netherlands
$190K
ST
256
Smithfield Trust
Pennsylvania
$189K
AAP
257
Arax Advisory Partners
Colorado
$186K
BFPW
258
BOK Financial Private Wealth
Colorado
$170K
KBC Group
259
KBC Group
Belgium
$147K
Rockefeller Capital Management
260
Rockefeller Capital Management
New York
$136K
CIBC Private Wealth Group
261
CIBC Private Wealth Group
Georgia
$127K
GI
262
GAMMA Investing
California
$120K
WT
263
Whittier Trust
California
$104K
UB
264
UMB Bank
Missouri
$99.8K
PA
265
Parallel Advisors
California
$99.7K
MCM
266
MAI Capital Management
Ohio
$93.2K
SO
267
STRS Ohio
Ohio
$91.2K
ACM
268
Aster Capital Management
United Arab Emirates
$70.2K
FFA
269
Farther Finance Advisors
California
$69.3K
SOW
270
State of Wyoming
Wyoming
$67K
MIM
271
MetLife Investment Management
New Jersey
$63.6K
ASN
272
Advisory Services Network
Georgia
$60.9K
PHK
273
Point72 Hong Kong
Hong Kong
$59.1K
FIA
274
FNY Investment Advisers
New York
$57K
Fifth Third Bancorp
275
Fifth Third Bancorp
Ohio
$56K