HHAA
AMTM

Henry H. Armstrong Associates’s Amentum Holdings AMTM Stock Holding History

Henry H. Armstrong Associates’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
Q2 		– Sell
-17,081
Closed -$311K – 60
2025
Q1 		$311K Hold
17,081
– – 0.03% 50
2024
Q4 		$359K Hold
17,081
– – 0.04% 47
2024
Q3 		$551K Buy
+17,081
New +$487K 0.05% 44

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
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $169B AUM 114.72% 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
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
VanEck Associates
VanEck Associates New York $164B AUM 112.45% 1-Year Est. Return

Henry H. Armstrong Associates's AMTM Position: Q2 2025 in Review

Henry H. Armstrong Associates sold out of Amentum Holdings (AMTM) in Q2 2025, closing a stake of 17,081 shares — an estimated $311K sold.

Henry H. Armstrong Associates first reported a position in AMTM in Q3 2024 and held it in 3 quarters. The position peaked at $551K in Q3 2024. 460 funds tracked by Wall St. Rank hold AMTM as of Q2 2025.

  • Henry H. Armstrong Associates reported no remaining Amentum Holdings position as of Q2 2025 after selling out during the quarter.
  • Henry H. Armstrong Associates sold 17,081 Amentum Holdings shares in Q2 2025, an estimated $311K.
  • Henry H. Armstrong Associates first reported a position in Amentum Holdings in Q3 2024 and held it in 3 quarters.
  • Henry H. Armstrong Associates's Amentum Holdings position peaked at $551K in Q3 2024.
  • 460 funds tracked by Wall St. Rank held Amentum Holdings as of Q2 2025.

Based on Henry H. Armstrong Associates's 13F filing for Q2 2025, filed 7 Jul 2025.