Barclays
AMTM

Barclays’s Amentum Holdings AMTM Stock Holding History

Barclays’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 		$3.14M Buy
151,780
+104,965
+224% +$2.54M ﹤0.01% 2099
2026
Q1 		$1.22M Sell
46,815
-3,560
-7% -$112K ﹤0.01% 2629
2025
Q4 		$1.46M Sell
50,375
-3,287
-6% -$84K ﹤0.01% 3160
2025
Q3 		$1.29M Buy
53,662
+4,423
+9% +$108K ﹤0.01% 3212
2025
Q2 		$1.16M Sell
49,239
-6,265
-11% -$131K ﹤0.01% 3235
2025
Q1 		$1.01M Sell
55,504
-114,147
-67% -$2.32M ﹤0.01% 3102
2024
Q4 		$3.57M Buy
169,651
+9,838
+6% +$254K ﹤0.01% 2449
2024
Q3 		$5.15M Buy
+159,813
New +$4.55M ﹤0.01% 2073

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

Barclays's AMTM Position: Q2 2026 in Review

Barclays increased its Amentum Holdings (AMTM) stake by 224% in Q2 2026, buying an estimated $2.54M and bringing the position to 151,780 shares worth $3.14M. The position accounts for ﹤0.01% of the portfolio, ranked #2099.

Barclays first reported a position in AMTM in Q3 2024 and has held it in 8 quarters since. The position peaked at $5.15M in Q3 2024. 462 funds tracked by Wall St. Rank hold AMTM as of Q2 2026.

  • Barclays held 151,780 shares of Amentum Holdings worth $3.14M as of Q2 2026.
  • Barclays bought 104,965 Amentum Holdings shares in Q2 2026, an estimated $2.54M.
  • Amentum Holdings made up ﹤0.01% of Barclays's portfolio in Q2 2026, its #2099 holding.
  • Barclays first reported a position in Amentum Holdings in Q3 2024 and has held it in 8 quarters since.
  • Barclays's Amentum Holdings position peaked at $5.15M in Q3 2024.
  • 462 funds tracked by Wall St. Rank held Amentum Holdings as of Q2 2026.

Based on Barclays's 13F filing for Q2 2026, filed 14 Aug 2026.