SIG Brokerage’s Amentum Holdings AMTM Stock Holding History

SIG Brokerage’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	-35,052	Closed	-$733K	–	898
2025 Q1	$638K	Buy	+35,052	New	+$714K	0.03%	323

Other funds holding AMTM

American Securities New York $3.75B AUM 23.12% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

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

Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

FCM

Frontier Capital Management Boston, Massachusetts $10.7B AUM 67.78% 1-Year Est. Return

Kovitz Investment Group Partners Chicago, Illinois $4.52B AUM 31.84% 1-Year Est. Return

TSW

Thompson Siegel & Walmsley Richmond, Virginia $5.57B AUM 9.46% 1-Year Est. Return

SIG Brokerage's AMTM Position: Q2 2025 in Review

SIG Brokerage sold out of Amentum Holdings (AMTM) in Q2 2025, closing a stake of 35,052 shares — an estimated $733K sold.

SIG Brokerage first reported a position in AMTM in Q1 2025 and held it in 1 quarter. The position peaked at $638K in Q1 2025. 460 funds tracked by Wall St. Rank hold AMTM as of Q2 2025.

SIG Brokerage reported no remaining Amentum Holdings position as of Q2 2025 after selling out during the quarter.
SIG Brokerage sold 35,052 Amentum Holdings shares in Q2 2025, an estimated $733K.
SIG Brokerage first reported a position in Amentum Holdings in Q1 2025 and held it in 1 quarter.
SIG Brokerage's Amentum Holdings position peaked at $638K in Q1 2025.
460 funds tracked by Wall St. Rank held Amentum Holdings as of Q2 2025.

Based on SIG Brokerage's 13F filing for Q2 2025, filed 14 Aug 2025.