AIP
AMTM

ARS Investment Partners’s Amentum Holdings AMTM Stock Holding History

ARS Investment Partners’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
Q1 		– Sell
-10,000
Closed -$290K – 212
2025
Q4 		$290K Buy
10,000
+1,000
+11% +$25.6K 0.02% 156
2025
Q3 		$216K Buy
+9,000
New +$219K 0.01% 186

Other funds holding AMTM

AS
American Securities New York $3.93B AUM 52.22% 1-Year Est. Return
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
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 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
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

ARS Investment Partners's AMTM Position: Q1 2026 in Review

ARS Investment Partners sold out of Amentum Holdings (AMTM) in Q1 2026, closing a stake of 10,000 shares — an estimated $290K sold.

ARS Investment Partners first reported a position in AMTM in Q3 2025 and held it in 2 quarters. The position peaked at $290K in Q4 2025. 486 funds tracked by Wall St. Rank hold AMTM as of Q1 2026.

  • ARS Investment Partners reported no remaining Amentum Holdings position as of Q1 2026 after selling out during the quarter.
  • ARS Investment Partners sold 10,000 Amentum Holdings shares in Q1 2026, an estimated $290K.
  • ARS Investment Partners first reported a position in Amentum Holdings in Q3 2025 and held it in 2 quarters.
  • ARS Investment Partners's Amentum Holdings position peaked at $290K in Q4 2025.
  • 486 funds tracked by Wall St. Rank held Amentum Holdings as of Q1 2026.

Based on ARS Investment Partners's 13F filing for Q1 2026, filed 16 Apr 2026.