QL
AMTM

Quarry LP’s Amentum Holdings AMTM Stock Holding History

Quarry LP’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 		$66.5K Buy
2,550
+487
+24% +$15.3K 0.01% 602
2025
Q4 		$59.8K Buy
2,063
+1,397
+210% +$35.7K 0.01% 605
2025
Q3 		$16K Sell
666
-3,671
-85% -$89.4K ﹤0.01% 1515
2025
Q2 		$102K Buy
4,337
+2,667
+160% +$55.7K 0.02% 552
2025
Q1 		$30.4K Buy
+1,670
New +$34K 0.01% 993
2024
Q4 		– Sell
-265
Closed -$8.55K – 2070
2024
Q3 		$8.55K Buy
+265
New +$7.55K ﹤0.01% 1321

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

Quarry LP's AMTM Position: Q1 2026 in Review

Quarry LP increased its Amentum Holdings (AMTM) stake by 24% in Q1 2026, buying an estimated $15.3K and bringing the position to 2,550 shares worth $66.5K. The position accounts for 0.01% of the portfolio, ranked #602.

Quarry LP first reported a position in AMTM in Q3 2024 and has held it in 6 quarters since. The position peaked at $102K in Q2 2025. 486 funds tracked by Wall St. Rank hold AMTM as of Q1 2026.

  • Quarry LP held 2,550 shares of Amentum Holdings worth $66.5K as of Q1 2026.
  • Quarry LP bought 487 Amentum Holdings shares in Q1 2026, an estimated $15.3K.
  • Amentum Holdings made up 0.01% of Quarry LP's portfolio in Q1 2026, its #602 holding.
  • Quarry LP first reported a position in Amentum Holdings in Q3 2024 and has held it in 6 quarters since.
  • Quarry LP's Amentum Holdings position peaked at $102K in Q2 2025.
  • 486 funds tracked by Wall St. Rank held Amentum Holdings as of Q1 2026.

Based on Quarry LP's 13F filing for Q1 2026, filed 15 May 2026.