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AMTM

Natixis’s Amentum Holdings AMTM Stock Holding History

Natixis’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 		$1.39M Buy
+67,073
New +$1.62M 0.01% 693
2025
Q4 		– Sell
-423
Closed -$10.1K – 1337
2025
Q3 		$10.1K Buy
+423
New +$10.3K ﹤0.01% 991
2025
Q1 		– Sell
-578
Closed -$12.2K – 1217
2024
Q4 		$12.2K Buy
+578
New +$14.9K ﹤0.01% 948

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 $3.38T AUM 44.17% 1-Year Est. Return
FCM
Frontier Capital Management Boston, Massachusetts $10.7B AUM 67.78% 1-Year Est. Return

Natixis's AMTM Position: Q2 2026 in Review

Natixis opened a new position in Amentum Holdings (AMTM) in Q2 2026: 67,073 shares worth $1.39M. The stake represents 0.01% of the portfolio and ranks #693 among its holdings. This is a return to the name: Natixis previously reported a position in AMTM as recently as Q3 2025.

Natixis first reported a position in AMTM in Q4 2024 and has held it in 3 quarters since. 464 funds tracked by Wall St. Rank hold AMTM as of Q2 2026.

  • Natixis held 67,073 shares of Amentum Holdings worth $1.39M as of Q2 2026.
  • Amentum Holdings was a new Natixis position in Q2 2026.
  • Amentum Holdings made up 0.01% of Natixis's portfolio in Q2 2026, its #693 holding.
  • Natixis first reported a position in Amentum Holdings in Q4 2024 and has held it in 3 quarters since.
  • 464 funds tracked by Wall St. Rank held Amentum Holdings as of Q2 2026.

Based on Natixis's 13F filing for Q2 2026, filed 13 Aug 2026.