River Road Asset Management’s Amentum Holdings AMTM Stock Holding History

River Road 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
2026 Q3	$14.6M	Buy	+806,355	New	+$16.9M	0.17%	113

Other funds holding AMTM

Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.32T AUM 44.66% 1-Year Est. Return

Thompson Siegel & Walmsley Richmond, Virginia $5.37B AUM 3.99% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return

Cacti Asset Management Atlanta, Georgia $1.89B AUM 58.55% 1-Year Est. Return

Bank of New York Mellon New York $608B AUM 32.77% 1-Year Est. Return

Segra Capital Management Palm Beach, Florida $822M AUM 57.18% 1-Year Est. Return

Principal Financial Group Des Moines, Iowa $195B AUM 21.17% 1-Year Est. Return

Public Sector Pension Investment Board (PSP Investments) Montreal, Quebec, Canada $45.4B AUM 34.02% 1-Year Est. Return

Pine Valley Investments Marlton, New Jersey $2.49B AUM 25.32% 1-Year Est. Return

River Road Asset Management's AMTM Position: Q3 2026 in Review

River Road Asset Management opened a new position in Amentum Holdings (AMTM) in Q3 2026: 806,355 shares worth $14.6M. The stake represents 0.17% of the portfolio and ranks #113 among its holdings.

240 funds tracked by Wall St. Rank hold AMTM as of Q3 2026.

River Road Asset Management held 806,355 shares of Amentum Holdings worth $14.6M as of Q3 2026.
Amentum Holdings was a new River Road Asset Management position in Q3 2026.
Amentum Holdings made up 0.17% of River Road Asset Management's portfolio in Q3 2026, its #113 holding.
240 funds tracked by Wall St. Rank held Amentum Holdings as of Q3 2026.

Based on River Road Asset Management's 13F filing for Q3 2026, filed 10 Nov 2026.