FIA
AMTM

FNY Investment Advisers’s Amentum Holdings AMTM Stock Holding History

FNY Investment Advisers’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
-45
Closed -$1K – 1165
2025
Q4 		$1K Sell
45
-2,355
-98% -$60.2K ﹤0.01% 869
2025
Q3 		$57K Hold
2,400
– – 0.02% 479
2025
Q2 		$56K Hold
2,400
– – 0.02% 380
2025
Q1 		$43K Buy
2,400
+1,900
+380% +$38.7K 0.03% 305
2024
Q4 		$10K Buy
+500
New +$12.9K 0.01% 491

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

FNY Investment Advisers's AMTM Position: Q1 2026 in Review

FNY Investment Advisers sold out of Amentum Holdings (AMTM) in Q1 2026, closing a stake of 45 shares — an estimated $1K sold.

FNY Investment Advisers first reported a position in AMTM in Q4 2024 and held it in 5 quarters. The position peaked at $57K in Q3 2025. 486 funds tracked by Wall St. Rank hold AMTM as of Q1 2026.

  • FNY Investment Advisers reported no remaining Amentum Holdings position as of Q1 2026 after selling out during the quarter.
  • FNY Investment Advisers sold 45 Amentum Holdings shares in Q1 2026, an estimated $1K.
  • FNY Investment Advisers first reported a position in Amentum Holdings in Q4 2024 and held it in 5 quarters.
  • FNY Investment Advisers's Amentum Holdings position peaked at $57K in Q3 2025.
  • 486 funds tracked by Wall St. Rank held Amentum Holdings as of Q1 2026.

Based on FNY Investment Advisers's 13F filing for Q1 2026, filed 15 Apr 2026.