Pathstone Holdings’s Amentum Holdings AMTM Stock Holding History

Pathstone Holdings’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 Q2	$495K	Buy	23,947 +2,153	+10%	+$52.1K	﹤0.01%	1880
2026 Q1	$568K	Sell	21,794 -10,132	-32%	-$318K	﹤0.01%	1697
2025 Q4	$926K	Buy	31,926 +17,501	+121%	+$447K	﹤0.01%	1453
2025 Q3	$345K	Buy	+14,425	New	+$351K	﹤0.01%	1961
2025 Q1	–	Sell	-12,128	Closed	-$255K	–	2401
2024 Q4	$255K	Buy	+12,128	New	+$313K	﹤0.01%	2047

Other funds holding AMTM

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

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

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

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

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

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

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

FCM

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

TCA

Troluce Capital Advisors Dorado, Puerto Rico $971M AUM 2.27% 1-Year Est. Return

Pathstone Holdings's AMTM Position: Q2 2026 in Review

Pathstone Holdings increased its Amentum Holdings (AMTM) stake by 9.9% in Q2 2026, buying an estimated $52.1K and bringing the position to 23,947 shares worth $495K. The position accounts for ﹤0.01% of the portfolio, ranked #1880.

Pathstone Holdings first reported a position in AMTM in Q4 2024 and has held it in 5 quarters since. The position peaked at $926K in Q4 2025. 458 funds tracked by Wall St. Rank hold AMTM as of Q2 2026.

Pathstone Holdings held 23,947 shares of Amentum Holdings worth $495K as of Q2 2026.
Pathstone Holdings bought 2,153 Amentum Holdings shares in Q2 2026, an estimated $52.1K.
Amentum Holdings made up ﹤0.01% of Pathstone Holdings's portfolio in Q2 2026, its #1880 holding.
Pathstone Holdings first reported a position in Amentum Holdings in Q4 2024 and has held it in 5 quarters since.
Pathstone Holdings's Amentum Holdings position peaked at $926K in Q4 2025.
458 funds tracked by Wall St. Rank held Amentum Holdings as of Q2 2026.

Based on Pathstone Holdings's 13F filing for Q2 2026, filed 13 Aug 2026.