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
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 $3.93B AUM 52.22% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
FCM
Frontier Capital Management Boston, Massachusetts $9.73B AUM 55.65% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Tidal Investments's AMTM Position: Q1 2026 in Review

Tidal Investments reduced its Amentum Holdings (AMTM) stake by 58% in Q1 2026, selling an estimated $616K and leaving 14,330 shares worth $374K. The position accounts for ﹤0.01% of the portfolio, ranked #1953.

Tidal Investments first reported a position in AMTM in Q3 2024 and has held it in 6 quarters since. The position peaked at $1.04M in Q4 2024. 486 funds tracked by Wall St. Rank hold AMTM as of Q1 2026.

  • Tidal Investments held 14,330 shares of Amentum Holdings worth $374K as of Q1 2026.
  • Tidal Investments sold 19,631 Amentum Holdings shares in Q1 2026, an estimated $616K.
  • Amentum Holdings made up ﹤0.01% of Tidal Investments's portfolio in Q1 2026, its #1953 holding.
  • Tidal Investments first reported a position in Amentum Holdings in Q3 2024 and has held it in 6 quarters since.
  • Tidal Investments's Amentum Holdings position peaked at $1.04M in Q4 2024.
  • 486 funds tracked by Wall St. Rank held Amentum Holdings as of Q1 2026.

Based on Tidal Investments's 13F filing for Q1 2026, filed 15 May 2026.