TI
AMTM

Tidal Investments’s Amentum Holdings AMTM Stock Holding History

Tidal Investments’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 		$209K Buy
10,100
+2,800
+38% +$67.7K ﹤0.01% 2439
2026
Q1 		$190K Buy
7,300
+6,200
+564% +$195K ﹤0.01% 2187
2025
Q4 		$31.9K Buy
+1,100
New +$28.1K ﹤0.01% 2103

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

Tidal Investments's AMTM Position: Q2 2026 in Review

Tidal Investments increased its Amentum Holdings (AMTM) stake by 54% in Q2 2026, buying an estimated $187K and bringing the position to 22,071 shares worth $456K. The position accounts for ﹤0.01% of the portfolio, ranked #2138.

Tidal Investments first reported a position in AMTM in Q3 2024 and has held it in 7 quarters since. The position peaked at $1.04M in Q4 2024. 462 funds tracked by Wall St. Rank hold AMTM as of Q2 2026.

  • Tidal Investments held 22,071 shares of Amentum Holdings worth $456K as of Q2 2026.
  • Tidal Investments bought 7,741 Amentum Holdings shares in Q2 2026, an estimated $187K.
  • Amentum Holdings made up ﹤0.01% of Tidal Investments's portfolio in Q2 2026, its #2138 holding.
  • Tidal Investments first reported a position in Amentum Holdings in Q3 2024 and has held it in 7 quarters since.
  • Tidal Investments's Amentum Holdings position peaked at $1.04M in Q4 2024.
  • 462 funds tracked by Wall St. Rank held Amentum Holdings as of Q2 2026.

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