Optiver Holding’s Amentum Holdings AMTM Stock Holding History

Optiver Holding’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 Q4	–	Sell	-7,954	Closed	-$190K	–	3098
2025 Q3	$190K	Buy	+7,954	New	+$194K	﹤0.01%	628

Other funds holding AMTM

American Securities New York $3.93B AUM 52.22% 1-Year Est. Return

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

FCM

Frontier Capital Management Boston, Massachusetts $9.73B AUM 55.65% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Focus Partners Wealth Boston, Massachusetts $89.9B AUM 20.5% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Optiver Holding's AMTM Position: Q4 2025 in Review

Optiver Holding sold out of Amentum Holdings (AMTM) in Q4 2025, closing a stake of 7,954 shares — an estimated $190K sold.

Optiver Holding first reported a position in AMTM in Q3 2025 and held it in 1 quarter. The position peaked at $190K in Q3 2025. 483 funds tracked by Wall St. Rank hold AMTM as of Q4 2025.

Optiver Holding reported no remaining Amentum Holdings position as of Q4 2025 after selling out during the quarter.
Optiver Holding sold 7,954 Amentum Holdings shares in Q4 2025, an estimated $190K.
Optiver Holding first reported a position in Amentum Holdings in Q3 2025 and held it in 1 quarter.
Optiver Holding's Amentum Holdings position peaked at $190K in Q3 2025.
483 funds tracked by Wall St. Rank held Amentum Holdings as of Q4 2025.

Based on Optiver Holding's 13F filing for Q4 2025, filed 17 Feb 2026.