JT
AMTM

Jupiter Topco’s Amentum Holdings AMTM Stock Holding History

Jupiter Topco’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 		$1.43M Buy
+69,400
New +$1.68M ﹤0.01% 1626

Other funds holding AMTM

Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
State Street
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
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

Jupiter Topco's AMTM Position: Q2 2026 in Review

Jupiter Topco opened a new position in Amentum Holdings (AMTM) in Q2 2026: 69,400 shares worth $1.43M. The stake represents ﹤0.01% of the portfolio and ranks #1626 among its holdings.

429 funds tracked by Wall St. Rank hold AMTM as of Q2 2026.

  • Jupiter Topco held 69,400 shares of Amentum Holdings worth $1.43M as of Q2 2026.
  • Amentum Holdings was a new Jupiter Topco position in Q2 2026.
  • Amentum Holdings made up ﹤0.01% of Jupiter Topco's portfolio in Q2 2026, its #1626 holding.
  • 429 funds tracked by Wall St. Rank held Amentum Holdings as of Q2 2026.

Based on Jupiter Topco's 13F filing for Q2 2026, filed 14 Aug 2026.