LAM
AMTM

LECAP Asset Management’s Amentum Holdings AMTM Stock Holding History

LECAP Asset 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 		$214K Buy
+10,370
New +$251K 0.09% 252
2025
Q4 		– Sell
-23,438
Closed -$561K – 402
2025
Q3 		$561K Buy
+23,438
New +$571K 0.2% 196
2025
Q2 		– Sell
-10,437
Closed -$190K – 412
2025
Q1 		$190K Buy
+10,437
New +$213K 0.04% 277

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

LECAP Asset Management's AMTM Position: Q2 2026 in Review

LECAP Asset Management opened a new position in Amentum Holdings (AMTM) in Q2 2026: 10,370 shares worth $214K. The stake represents 0.09% of the portfolio and ranks #252 among its holdings. This is a return to the name: LECAP Asset Management previously reported a position in AMTM as recently as Q3 2025.

LECAP Asset Management first reported a position in AMTM in Q1 2025 and has held it in 3 quarters since. The position peaked at $561K in Q3 2025. 462 funds tracked by Wall St. Rank hold AMTM as of Q2 2026.

  • LECAP Asset Management held 10,370 shares of Amentum Holdings worth $214K as of Q2 2026.
  • Amentum Holdings was a new LECAP Asset Management position in Q2 2026.
  • Amentum Holdings made up 0.09% of LECAP Asset Management's portfolio in Q2 2026, its #252 holding.
  • LECAP Asset Management first reported a position in Amentum Holdings in Q1 2025 and has held it in 3 quarters since.
  • LECAP Asset Management's Amentum Holdings position peaked at $561K in Q3 2025.
  • 462 funds tracked by Wall St. Rank held Amentum Holdings as of Q2 2026.

Based on LECAP Asset Management's 13F filing for Q2 2026, filed 30 Jul 2026.