MC
AMTM

Machina Capital’s Amentum Holdings AMTM Stock Holding History

Machina 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 		$345K Buy
16,681
+8,399
+101% +$203K 0.05% 315
2026
Q1 		$216K Buy
8,282
+799
+11% +$25.1K 0.04% 342
2025
Q4 		$217K Buy
+7,483
New +$191K 0.04% 330

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

Machina Capital's AMTM Position: Q2 2026 in Review

Machina Capital increased its Amentum Holdings (AMTM) stake by 101% in Q2 2026, buying an estimated $203K and bringing the position to 16,681 shares worth $345K. The position accounts for 0.05% of the portfolio, ranked #315.

Machina Capital first reported a position in AMTM in Q4 2025 and has held it in 3 quarters since. 464 funds tracked by Wall St. Rank hold AMTM as of Q2 2026.

  • Machina Capital held 16,681 shares of Amentum Holdings worth $345K as of Q2 2026.
  • Machina Capital bought 8,399 Amentum Holdings shares in Q2 2026, an estimated $203K.
  • Amentum Holdings made up 0.05% of Machina Capital's portfolio in Q2 2026, its #315 holding.
  • Machina Capital first reported a position in Amentum Holdings in Q4 2025 and has held it in 3 quarters since.
  • 464 funds tracked by Wall St. Rank held Amentum Holdings as of Q2 2026.

Based on Machina Capital's 13F filing for Q2 2026, filed 10 Aug 2026.