Amentum Holdings, Inc. - Common Stock (AMTM)

Historical Holders from Q3 2024 to Q3 2025

Symbol
AMTM on NYSE
CUSIP
023939101
Type / Class
Equity / Common Stock
Shares outstanding
243M
All holders as of September 30, 2025
Q3 2025
Total 13F shares, excl. options
193M
Holdings value
$4.63B
% of all portfolios
0.01%
Grand Portfolio weight change
0%
Number of holders
448
Number of buys
177
Number of sells
-238
Average Value change %
+0%
Average buys %
+0.003%
Average sells %
-0.003%
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of Amentum Holdings, Inc. - Common Stock (AMTM)

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
GOLDBERG ALAN E 18% $797M 43.9M Alan E. Goldberg Dec 17, 2024
ASP Manager Corp. 18.04% $797M 43.9M ASP Manager Corp. Dec 17, 2024
Invesco Ltd. 9.1% +28.6% $530M $118M 22.1M +28.7% Invesco Ltd. Sep 30, 2025
BlackRock, Inc. 6.9% $304M 16.8M BlackRock, Inc. Dec 31, 2024
VANGUARD GROUP INC 6.79% $300M 16.5M The Vanguard Group Dec 31, 2024

Institutional Holders of Amentum Holdings, Inc. - Common Stock (AMTM)

Period Reported Shares, Excl. Options Value, Excl. Options Change Price Investors
2025 Q3 193M $4.63B -$165M $23.95 448
2025 Q2 200M $4.73B +$283M $23.61 449
2025 Q1 190M $3.46B +$424M $18.20 410
2024 Q4 177M $3.72B +$1.41B $21.03 440
2024 Q3 99.7M $3.2B +$2.91B $32.25 479