Summit Financial’s Amentum Holdings AMTM Stock Holding History

Summit Financial’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
2026 Q1	–	Sell	-15,175	Closed	-$440K	–	1480
2025 Q4	$440K	Sell	15,175 -12	-0.1%	-$307	0.01%	929
2025 Q3	$364K	Buy	+15,187	New	+$370K	0.01%	995

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

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

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

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

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

FCM

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

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Summit Financial's AMTM Position: Q1 2026 in Review

Summit Financial sold out of Amentum Holdings (AMTM) in Q1 2026, closing a stake of 15,175 shares — an estimated $440K sold.

Summit Financial first reported a position in AMTM in Q3 2025 and held it in 2 quarters. The position peaked at $440K in Q4 2025. 486 funds tracked by Wall St. Rank hold AMTM as of Q1 2026.

Summit Financial reported no remaining Amentum Holdings position as of Q1 2026 after selling out during the quarter.
Summit Financial sold 15,175 Amentum Holdings shares in Q1 2026, an estimated $440K.
Summit Financial first reported a position in Amentum Holdings in Q3 2025 and held it in 2 quarters.
Summit Financial's Amentum Holdings position peaked at $440K in Q4 2025.
486 funds tracked by Wall St. Rank held Amentum Holdings as of Q1 2026.

Based on Summit Financial's 13F filing for Q1 2026, filed 15 May 2026.