FFO
AMTM

Fortitude Family Office’s Amentum Holdings AMTM Stock Holding History

Fortitude Family Office’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 		$1.3K Buy
63
+53
+530% +$1.28K ﹤0.01% 1652
2026
Q1 		$261 Buy
+10
New +$314 ﹤0.01% 1831

Other funds holding AMTM

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
TCA
Troluce Capital Advisors Dorado, Puerto Rico $971M AUM 2.27% 1-Year Est. Return

Fortitude Family Office's AMTM Position: Q2 2026 in Review

Fortitude Family Office increased its Amentum Holdings (AMTM) stake by 530% in Q2 2026, buying an estimated $1.28K and bringing the position to 63 shares worth $1.3K. The position accounts for ﹤0.01% of the portfolio, ranked #1652.

Fortitude Family Office first reported a position in AMTM in Q1 2026 and has held it in 2 quarters since. 458 funds tracked by Wall St. Rank hold AMTM as of Q2 2026.

  • Fortitude Family Office held 63 shares of Amentum Holdings worth $1.3K as of Q2 2026.
  • Fortitude Family Office bought 53 Amentum Holdings shares in Q2 2026, an estimated $1.28K.
  • Amentum Holdings made up ﹤0.01% of Fortitude Family Office's portfolio in Q2 2026, its #1652 holding.
  • Fortitude Family Office first reported a position in Amentum Holdings in Q1 2026 and has held it in 2 quarters since.
  • 458 funds tracked by Wall St. Rank held Amentum Holdings as of Q2 2026.

Based on Fortitude Family Office's 13F filing for Q2 2026, filed 20 Jul 2026.