HCA
AMTM

Hyperion Capital Advisors’s Amentum Holdings AMTM Stock Holding History

Hyperion Capital Advisors’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 		$7.92M Sell
303,576
-188,296
-38% -$5.91M 3.81% 12
2025
Q4 		$14.3M Buy
491,872
+71,864
+17% +$1.84M 6.98% 4
2025
Q3 		$10.1M Buy
420,008
+368,521
+716% +$8.97M 5.38% 8
2025
Q2 		$1.22M Buy
51,487
+32,901
+177% +$688K 0.76% 19
2025
Q1 		$338K Sell
18,586
-977
-5% -$19.9K 0.18% 47
2024
Q4 		$411K Buy
+19,563
New +$506K 0.21% 37

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

Hyperion Capital Advisors's AMTM Position: Q1 2026 in Review

Hyperion Capital Advisors reduced its Amentum Holdings (AMTM) stake by 38% in Q1 2026, selling an estimated $5.91M and leaving 303,576 shares worth $7.92M. The position accounts for 3.81% of the portfolio, ranked #12.

Hyperion Capital Advisors first reported a position in AMTM in Q4 2024 and has held it in 6 quarters since. The position peaked at $14.3M in Q4 2025. 486 funds tracked by Wall St. Rank hold AMTM as of Q1 2026.

  • Hyperion Capital Advisors held 303,576 shares of Amentum Holdings worth $7.92M as of Q1 2026.
  • Hyperion Capital Advisors sold 188,296 Amentum Holdings shares in Q1 2026, an estimated $5.91M.
  • Amentum Holdings made up 3.81% of Hyperion Capital Advisors's portfolio in Q1 2026, its #12 holding.
  • Hyperion Capital Advisors first reported a position in Amentum Holdings in Q4 2024 and has held it in 6 quarters since.
  • Hyperion Capital Advisors's Amentum Holdings position peaked at $14.3M in Q4 2025.
  • 486 funds tracked by Wall St. Rank held Amentum Holdings as of Q1 2026.

Based on Hyperion Capital Advisors's 13F filing for Q1 2026, filed 15 May 2026.