SCM
AMTM

Segra Capital Management’s Amentum Holdings AMTM Stock Holding History

Segra Capital Management’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 		$42.1M Buy
2,037,890
+425,164
+26% +$10.3M 8.5% 3
2026
Q1 		$42.1M Buy
1,612,726
+1,007,916
+167% +$31.6M 16.96% 1
2025
Q4 		$17.5M Buy
604,810
+187,785
+45% +$4.8M 12.43% 3
2025
Q3 		$9.99M Buy
+417,025
New +$10.2M 4.04% 5

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

Segra Capital Management's AMTM Position: Q2 2026 in Review

Segra Capital Management increased its Amentum Holdings (AMTM) stake by 26% in Q2 2026, buying an estimated $10.3M and bringing the position to 2,037,890 shares worth $42.1M. The position accounts for 8.5% of the portfolio, ranked #3.

Segra Capital Management first reported a position in AMTM in Q3 2025 and has held it in 4 quarters since. 462 funds tracked by Wall St. Rank hold AMTM as of Q2 2026.

  • Segra Capital Management held 2,037,890 shares of Amentum Holdings worth $42.1M as of Q2 2026.
  • Segra Capital Management bought 425,164 Amentum Holdings shares in Q2 2026, an estimated $10.3M.
  • Amentum Holdings made up 8.5% of Segra Capital Management's portfolio in Q2 2026, its #3 holding.
  • Segra Capital Management first reported a position in Amentum Holdings in Q3 2025 and has held it in 4 quarters since.
  • 462 funds tracked by Wall St. Rank held Amentum Holdings as of Q2 2026.

Based on Segra Capital Management's 13F filing for Q2 2026, filed 12 Aug 2026.