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
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 $3.93B 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

Segra Capital Management's AMTM Position: Q1 2026 in Review

Segra Capital Management increased its Amentum Holdings (AMTM) stake by 167% in Q1 2026, buying an estimated $31.6M and bringing the position to 1,612,726 shares worth $42.1M. The position accounts for 16.96% of the portfolio, ranked #1.

Segra Capital Management first reported a position in AMTM in Q3 2025 and has held it in 3 quarters since. 486 funds tracked by Wall St. Rank hold AMTM as of Q1 2026.

  • Segra Capital Management held 1,612,726 shares of Amentum Holdings worth $42.1M as of Q1 2026.
  • Segra Capital Management bought 1,007,916 Amentum Holdings shares in Q1 2026, an estimated $31.6M.
  • Amentum Holdings made up 16.96% of Segra Capital Management's portfolio in Q1 2026, its #1 holding.
  • Segra Capital Management first reported a position in Amentum Holdings in Q3 2025 and has held it in 3 quarters since.
  • 486 funds tracked by Wall St. Rank held Amentum Holdings as of Q1 2026.

Based on Segra Capital Management's 13F filing for Q1 2026, filed 7 May 2026.