Citigroup
AMTM

Citigroup’s Amentum Holdings AMTM Stock Holding History

Citigroup’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 		$651K Sell
31,486
-9,185
-23% -$222K ﹤0.01% 3758
2026
Q1 		$1.06M Sell
40,671
-38,337
-49% -$1.2M ﹤0.01% 3079
2025
Q4 		$2.29M Buy
79,008
+2,299
+3% +$58.8K ﹤0.01% 2561
2025
Q3 		$1.84M Sell
76,709
-53,155
-41% -$1.29M ﹤0.01% 2743
2025
Q2 		$3.07M Buy
129,864
+12,055
+10% +$252K ﹤0.01% 2310
2025
Q1 		$2.14M Sell
117,809
-209,953
-64% -$4.28M ﹤0.01% 2638
2024
Q4 		$6.89M Buy
327,762
+212,912
+185% +$5.5M ﹤0.01% 1661
2024
Q3 		$3.7M Buy
+114,850
New +$3.27M ﹤0.01% 2102

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

Citigroup's AMTM Position: Q2 2026 in Review

Citigroup reduced its Amentum Holdings (AMTM) stake by 23% in Q2 2026, selling an estimated $222K and leaving 31,486 shares worth $651K. The position accounts for ﹤0.01% of the portfolio, ranked #3758.

Citigroup first reported a position in AMTM in Q3 2024 and has held it in 8 quarters since. The position peaked at $6.89M in Q4 2024. 462 funds tracked by Wall St. Rank hold AMTM as of Q2 2026.

  • Citigroup held 31,486 shares of Amentum Holdings worth $651K as of Q2 2026.
  • Citigroup sold 9,185 Amentum Holdings shares in Q2 2026, an estimated $222K.
  • Amentum Holdings made up ﹤0.01% of Citigroup's portfolio in Q2 2026, its #3758 holding.
  • Citigroup first reported a position in Amentum Holdings in Q3 2024 and has held it in 8 quarters since.
  • Citigroup's Amentum Holdings position peaked at $6.89M in Q4 2024.
  • 462 funds tracked by Wall St. Rank held Amentum Holdings as of Q2 2026.

Based on Citigroup's 13F filing for Q2 2026, filed 3 Aug 2026.