WAM
AMTM

Weiss Asset Management’s Amentum Holdings AMTM Stock Holding History

Weiss Asset Management’s Portfolio AMTM Stock Details AMTM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q2 		– Sell
-60,953
Closed -$1.11M – 549
2025
Q1 		$1.11M Buy
60,953
+30,922
+103% +$630K 0.02% 189
2024
Q4 		$632K Buy
+30,031
New +$776K 0.01% 434

Other funds holding AMTM

AS
American Securities New York $3.75B AUM 23.12% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return
FCM
Frontier Capital Management Boston, Massachusetts $10.7B AUM 67.78% 1-Year Est. Return
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
VanEck Associates
VanEck Associates New York $164B AUM 112.45% 1-Year Est. Return

Weiss Asset Management's AMTM Position: Q2 2025 in Review

Weiss Asset Management sold out of Amentum Holdings (AMTM) in Q2 2025, closing a stake of 60,953 shares — an estimated $1.11M sold.

Weiss Asset Management first reported a position in AMTM in Q4 2024 and held it in 2 quarters. The position peaked at $1.11M in Q1 2025. 460 funds tracked by Wall St. Rank hold AMTM as of Q2 2025.

  • Weiss Asset Management reported no remaining Amentum Holdings position as of Q2 2025 after selling out during the quarter.
  • Weiss Asset Management sold 60,953 Amentum Holdings shares in Q2 2025, an estimated $1.11M.
  • Weiss Asset Management first reported a position in Amentum Holdings in Q4 2024 and held it in 2 quarters.
  • Weiss Asset Management's Amentum Holdings position peaked at $1.11M in Q1 2025.
  • 460 funds tracked by Wall St. Rank held Amentum Holdings as of Q2 2025.

Based on Weiss Asset Management's 13F filing for Q2 2025, filed 14 Aug 2025.