AMTM

Amentum Holdings

450 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, 102 increasing their positions, 175 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 in top 10

Funds holding in top 10:

less capital invested

Capital invested by funds: $ → $

1% less funds holding

Funds holding: 456450 (-6)

2.87% less ownership

Funds ownership: 82.31%79.44% (-2.9%)

42% less repeat investments, than reductions

Existing positions increased: 102 | Existing positions reduced: 175

Holders
450
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
Canada Pension Plan Investment Board
251
Canada Pension Plan Investment Board
Ontario, Canada
$194K
CI
252
CX Institutional
Indiana
$193K
Optiver Holding
253
Optiver Holding
Netherlands
$190K
ST
254
Smithfield Trust
Pennsylvania
$189K
AAP
255
Arax Advisory Partners
Colorado
$186K
BFPW
256
BOK Financial Private Wealth
Colorado
$170K
Rockefeller Capital Management
257
Rockefeller Capital Management
New York
$136K
CIBC Private Wealth Group
258
CIBC Private Wealth Group
Georgia
$127K
GI
259
GAMMA Investing
California
$120K
WT
260
Whittier Trust
California
$104K
UB
261
UMB Bank
Missouri
$99.8K
PA
262
Parallel Advisors
California
$99.7K
MCM
263
MAI Capital Management
Ohio
$93.2K
SO
264
STRS Ohio
Ohio
$91.2K
ACM
265
Aster Capital Management
United Arab Emirates
$70.2K
FFA
266
Farther Finance Advisors
California
$69.3K
SOW
267
State of Wyoming
Wyoming
$67K
MIM
268
MetLife Investment Management
New Jersey
$63.6K
ASN
269
Advisory Services Network
Georgia
$60.9K
PHK
270
Point72 Hong Kong
Hong Kong
$59.1K
Fifth Third Bancorp
271
Fifth Third Bancorp
Ohio
$56K
S
272
SignatureFD
Georgia
$52.6K
LWCFA
273
Loring Wolcott & Coolidge Fiduciary Advisors
Massachusetts
$50.4K
SAM
274
Smartleaf Asset Management
Massachusetts
$48.9K
PMFA
275
Plante Moran Financial Advisors
Michigan
$47.7K