SC
AMTM

Syon Capital’s Amentum Holdings AMTM Stock Holding History

Syon Capital’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 		– Sell
-8,814
Closed -$230K – 1016
2026
Q1 		$230K Buy
8,814
+87
+1% +$2.73K 0.01% 836
2025
Q4 		$253K Hold
8,727
– – 0.01% 793
2025
Q3 		$209K Sell
8,727
-25
-0.3% -$609 0.01% 774
2025
Q2 		$207K Buy
+8,752
New +$183K 0.01% 686

Other funds holding AMTM

AS
American Securities New York $3.75B AUM 23.12% 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
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

Syon Capital's AMTM Position: Q2 2026 in Review

Syon Capital sold out of Amentum Holdings (AMTM) in Q2 2026, closing a stake of 8,814 shares — an estimated $230K sold.

Syon Capital first reported a position in AMTM in Q2 2025 and held it in 4 quarters. The position peaked at $253K in Q4 2025. 460 funds tracked by Wall St. Rank hold AMTM as of Q2 2026.

  • Syon Capital reported no remaining Amentum Holdings position as of Q2 2026 after selling out during the quarter.
  • Syon Capital sold 8,814 Amentum Holdings shares in Q2 2026, an estimated $230K.
  • Syon Capital first reported a position in Amentum Holdings in Q2 2025 and held it in 4 quarters.
  • Syon Capital's Amentum Holdings position peaked at $253K in Q4 2025.
  • 460 funds tracked by Wall St. Rank held Amentum Holdings as of Q2 2026.

Based on Syon Capital's 13F filing for Q2 2026, filed 14 Aug 2026.