AMTM

Amentum Holdings

452 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, 103 increasing their positions, 176 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 funds holding

Funds holding:

2% less capital invested

Capital invested by funds: $4.73B → $4.63B (-$99.6M)

2.86% less ownership

Funds ownership: 82.31%79.45% (-2.9%)

41% less repeat investments, than reductions

Existing positions increased: 103 | Existing positions reduced: 176

Holders
452
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
MFIM
476
Mesirow Financial Investment Management
Illinois
DC
477
Diametric Capital
Massachusetts
EHC
478
Everett Harris & Co
California
Janney Montgomery Scott
479
Janney Montgomery Scott
Pennsylvania
LAM
480
Lingohr Asset Management
Germany
KRS
481
Kentucky Retirement Systems
Kentucky
URS
482
Utah Retirement Systems
Utah
EI
483
Ethic Inc
New York
CF
484
Cantor Fitzgerald
New York
IIM
485
Intact Investment Management
Quebec, Canada
ANBT
486
American National Bank & Trust
Texas
GIM
487
Glenmede Investment Management
Pennsylvania
OIAM
488
OFI Invest Asset Management
France
CT
489
Caldwell Trust
Florida
RAM
490
Riggs Asset Management
Pennsylvania
CIAM
491
Caitong International Asset Management
Hong Kong
SAM
492
Shell Asset Management
Netherlands
National Pension Service
493
National Pension Service
South Korea
BF
494
BOK Financial
Oklahoma
BOTPPF
495
Board of the Pension Protection Fund
United Kingdom
RA
496
Ransom Advisory
Rhode Island
TPWA
497
Twin Peaks Wealth Advisors
California
BCMLT
498
Beacon Capital Management LLC (Tennessee)
Tennessee
GWP
499
Gen-Wealth Partners
Michigan
UBP
500
Union Bancaire Privee
Switzerland