Qube Research & Technologies (QRT)
AMTM icon

Qube Research & Technologies (QRT)’s Amentum Holdings AMTM Stock Holding History

Qube Research & Technologies (QRT)’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 		– Sell
-1,034,395
Closed -$21.4M – 4234
2026
Q2 		$21.4M Buy
1,034,395
+957,026
+1,237% +$23.1M 0.02% 883
2026
Q1 		$2.02M Sell
77,369
-68,813
-47% -$2.16M ﹤0.01% 2171
2025
Q4 		$4.24M Buy
+146,182
New +$3.74M ﹤0.01% 1858
2024
Q4 		– Sell
-35,958
Closed -$1.16M – 3882
2024
Q3 		$1.16M Buy
+35,958
New +$1.02M ﹤0.01% 1976

Other funds holding AMTM

American Securities
American Securities New York $2.69B AUM 8.08% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.27T AUM 50.62% 1-Year Est. Return
BlackRock
BlackRock New York $6.79T AUM 37.06% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $161B AUM 86.05% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.21T AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.76T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.32T AUM 44.66% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.44T AUM 36.12% 1-Year Est. Return
Thompson Siegel & Walmsley
Thompson Siegel & Walmsley Richmond, Virginia $5.37B AUM 3.99% 1-Year Est. Return

Qube Research & Technologies (QRT)'s AMTM Position: Q3 2026 in Review

Qube Research & Technologies (QRT) sold out of Amentum Holdings (AMTM) in Q3 2026, closing a stake of 1,034,395 shares — an estimated $21.4M sold.

Qube Research & Technologies (QRT) first reported a position in AMTM in Q3 2024 and held it in 4 quarters. The position peaked at $21.4M in Q2 2026. 360 funds tracked by Wall St. Rank hold AMTM as of Q3 2026.

  • Qube Research & Technologies (QRT) reported no remaining Amentum Holdings position as of Q3 2026 after selling out during the quarter.
  • Qube Research & Technologies (QRT) sold 1,034,395 Amentum Holdings shares in Q3 2026, an estimated $21.4M.
  • Qube Research & Technologies (QRT) first reported a position in Amentum Holdings in Q3 2024 and held it in 4 quarters.
  • Qube Research & Technologies (QRT)'s Amentum Holdings position peaked at $21.4M in Q2 2026.
  • 360 funds tracked by Wall St. Rank held Amentum Holdings as of Q3 2026.

Based on Qube Research & Technologies (QRT)'s 13F filing for Q3 2026, filed 13 Nov 2026.