DFCM
AMTM

Dark Forest Capital Management’s Amentum Holdings AMTM Stock Holding History

Dark Forest Capital 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
2025
Q4 		– Sell
-95,866
Closed -$2.3M – 1421
2025
Q3 		$2.3M Buy
+95,866
New +$2.33M 0.09% 415

Other funds holding AMTM

AS
American Securities New York $3.93B AUM 52.22% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
FCM
Frontier Capital Management Boston, Massachusetts $9.73B AUM 55.65% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Focus Partners Wealth
Focus Partners Wealth Boston, Massachusetts $89.9B AUM 20.5% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Dark Forest Capital Management's AMTM Position: Q4 2025 in Review

Dark Forest Capital Management sold out of Amentum Holdings (AMTM) in Q4 2025, closing a stake of 95,866 shares — an estimated $2.3M sold.

Dark Forest Capital Management first reported a position in AMTM in Q3 2025 and held it in 1 quarter. The position peaked at $2.3M in Q3 2025. 483 funds tracked by Wall St. Rank hold AMTM as of Q4 2025.

  • Dark Forest Capital Management reported no remaining Amentum Holdings position as of Q4 2025 after selling out during the quarter.
  • Dark Forest Capital Management sold 95,866 Amentum Holdings shares in Q4 2025, an estimated $2.3M.
  • Dark Forest Capital Management first reported a position in Amentum Holdings in Q3 2025 and held it in 1 quarter.
  • Dark Forest Capital Management's Amentum Holdings position peaked at $2.3M in Q3 2025.
  • 483 funds tracked by Wall St. Rank held Amentum Holdings as of Q4 2025.

Based on Dark Forest Capital Management's 13F filing for Q4 2025, filed 17 Feb 2026.