MA
AMTM

Montag & Associates’s Amentum Holdings AMTM Stock Holding History

Montag & 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
Q3 		– Sell
-55
Closed -$1.3K – 1158
2025
Q2 		$1.3K Buy
+55
New +$1.15K ﹤0.01% 897
2024
Q4 		– Sell
-6
Closed -$194 – 1045
2024
Q3 		$194 Buy
+6
New +$171 ﹤0.01% 1019

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 $3.38T AUM 44.17% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
FCM
Frontier Capital Management Boston, Massachusetts $10.7B AUM 67.78% 1-Year Est. Return
Kovitz Investment Group Partners
Kovitz Investment Group Partners Chicago, Illinois $4.52B AUM 31.84% 1-Year Est. Return
TSW
Thompson Siegel & Walmsley Richmond, Virginia $5.57B AUM 9.46% 1-Year Est. Return

Montag & Associates's AMTM Position: Q3 2025 in Review

Montag & Associates sold out of Amentum Holdings (AMTM) in Q3 2025, closing a stake of 55 shares — an estimated $1.3K sold.

Montag & Associates first reported a position in AMTM in Q3 2024 and held it in 2 quarters. The position peaked at $1.3K in Q2 2025. 462 funds tracked by Wall St. Rank hold AMTM as of Q3 2025.

  • Montag & Associates reported no remaining Amentum Holdings position as of Q3 2025 after selling out during the quarter.
  • Montag & Associates sold 55 Amentum Holdings shares in Q3 2025, an estimated $1.3K.
  • Montag & Associates first reported a position in Amentum Holdings in Q3 2024 and held it in 2 quarters.
  • Montag & Associates's Amentum Holdings position peaked at $1.3K in Q2 2025.
  • 462 funds tracked by Wall St. Rank held Amentum Holdings as of Q3 2025.

Based on Montag & Associates's 13F filing for Q3 2025, filed 12 Nov 2025.