AMTM

Amentum Holdings

476 hedge funds and large institutions have $5.64B invested in Amentum Holdings in 2025 Q4 according to their latest regulatory filings, with 85 funds opening new positions, 130 increasing their positions, 159 reducing their positions, and 58 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 capital invested

Capital invested by funds: $ → $

more funds holding in top 10

Funds holding in top 10:

4.13% more ownership

Funds ownership: 79.49%83.62% (+4.1%)

3% more funds holding

Funds holding: 460476 (+16)

18% less repeat investments, than reductions

Existing positions increased: 130 | Existing positions reduced: 159

Holders
476
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
10
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$73.7M
Puts
$30.3M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
CG
251
Caprock Group
Idaho
$270K
CFP
252
Comprehensive Financial Planning
Pennsylvania
$256K
SC
253
Syon Capital
California
$253K
AWM
254
Aberdeen Wealth Management
Illinois
$251K
SAM
255
Silvercrest Asset Management
New York
$247K
X
256
Xponance
Pennsylvania
$245K
CIA
257
Concurrent Investment Advisors
Florida
$243K
URS
258
Utah Retirement Systems
Utah
$242K
JCM
259
Janney Capital Management
Pennsylvania
$241K
WC
260
Wexford Capital
Florida
$239K
Acadian Asset Management
261
Acadian Asset Management
Massachusetts
$237K
BPWM
262
Badgley Phelps Wealth Managers
Washington
$236K
Lido Advisors
263
Lido Advisors
California
$236K
WTA
264
Washington Trust Advisors
Massachusetts
$236K
CI
265
CX Institutional
Indiana
$230K
ST
266
Smithfield Trust
Pennsylvania
$229K
FFWA
267
FRG Family Wealth Advisors
Washington
$228K
MFS
268
Mirabella Financial Services
United Kingdom
$226K
KeyBank National Association
269
KeyBank National Association
Ohio
$223K
MC
270
Machina Capital
France
$217K
STA
271
Summit Trail Advisors
New York
$216K
SRC
272
Sage Rhino Capital
California
$213K
FRM
273
Fox Run Management
Connecticut
$210K
BFM
274
Boothbay Fund Management
New York
$209K
FAM
275
Formidable Asset Management
Ohio
$208K