UBS Group
AMTM

UBS Group’s Amentum Holdings AMTM Stock Holding History

UBS Group’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 		$31.9M Sell
1,545,183
-165,592
-10% -$4.01M ﹤0.01% 2207
2026
Q1 		$44.6M Buy
1,710,775
+1,504,673
+730% +$47.2M 0.01% 1757
2025
Q4 		$5.98M Sell
206,102
-25,088
-11% -$641K ﹤0.01% 3841
2025
Q3 		$5.54M Sell
231,190
-535,114
-70% -$13M ﹤0.01% 3929
2025
Q2 		$18.1M Sell
766,304
-763,830
-50% -$16M ﹤0.01% 2470
2025
Q1 		$27.8M Buy
1,530,134
+398,390
+35% +$8.11M 0.01% 2022
2024
Q4 		$23.8M Buy
1,131,744
+705,180
+165% +$18.2M ﹤0.01% 2149
2024
Q3 		$13.8M Buy
+426,564
New +$12.2M ﹤0.01% 2107

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

UBS Group's AMTM Position: Q2 2026 in Review

UBS Group reduced its Amentum Holdings (AMTM) stake by 9.7% in Q2 2026, selling an estimated $4.01M and leaving 1,545,183 shares worth $31.9M. The position accounts for ﹤0.01% of the portfolio, ranked #2207.

UBS Group first reported a position in AMTM in Q3 2024 and has held it in 8 quarters since. The position peaked at $44.6M in Q1 2026. 462 funds tracked by Wall St. Rank hold AMTM as of Q2 2026.

  • UBS Group held 1,545,183 shares of Amentum Holdings worth $31.9M as of Q2 2026.
  • UBS Group sold 165,592 Amentum Holdings shares in Q2 2026, an estimated $4.01M.
  • Amentum Holdings made up ﹤0.01% of UBS Group's portfolio in Q2 2026, its #2207 holding.
  • UBS Group first reported a position in Amentum Holdings in Q3 2024 and has held it in 8 quarters since.
  • UBS Group's Amentum Holdings position peaked at $44.6M in Q1 2026.
  • 462 funds tracked by Wall St. Rank held Amentum Holdings as of Q2 2026.

Based on UBS Group's 13F filing for Q2 2026, filed 13 Aug 2026.