California State Teachers Retirement System (CalSTRS)
AMTM

California State Teachers Retirement System (CalSTRS)’s Amentum Holdings AMTM Stock Holding History

California State Teachers Retirement System (CalSTRS)’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 		$3.79M Sell
183,223
-1,332
-0.7% -$32.2K ﹤0.01% 1246
2026
Q1 		$4.81M Buy
184,555
+34,643
+23% +$1.09M 0.01% 1041
2025
Q4 		$4.35M Sell
149,912
-12,418
-8% -$317K ﹤0.01% 1002
2025
Q3 		$3.89M Buy
162,330
+33
+0% +$803 ﹤0.01% 1059
2025
Q2 		$3.83M Buy
162,297
+31,123
+24% +$650K ﹤0.01% 1030
2025
Q1 		$2.39M Sell
131,174
-245
-0.2% -$4.99K ﹤0.01% 1238
2024
Q4 		$2.76M Sell
131,419
-85,182
-39% -$2.2M ﹤0.01% 1212
2024
Q3 		$6.99M Buy
+216,601
New +$6.17M 0.01% 755

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

California State Teachers Retirement System (CalSTRS)'s AMTM Position: Q2 2026 in Review

California State Teachers Retirement System (CalSTRS) reduced its Amentum Holdings (AMTM) stake by 0.72% in Q2 2026, selling an estimated $32.2K and leaving 183,223 shares worth $3.79M. The position accounts for ﹤0.01% of the portfolio, ranked #1246.

California State Teachers Retirement System (CalSTRS) first reported a position in AMTM in Q3 2024 and has held it in 8 quarters since. The position peaked at $6.99M in Q3 2024. 460 funds tracked by Wall St. Rank hold AMTM as of Q2 2026.

  • California State Teachers Retirement System (CalSTRS) held 183,223 shares of Amentum Holdings worth $3.79M as of Q2 2026.
  • California State Teachers Retirement System (CalSTRS) sold 1,332 Amentum Holdings shares in Q2 2026, an estimated $32.2K.
  • Amentum Holdings made up ﹤0.01% of California State Teachers Retirement System (CalSTRS)'s portfolio in Q2 2026, its #1246 holding.
  • California State Teachers Retirement System (CalSTRS) first reported a position in Amentum Holdings in Q3 2024 and has held it in 8 quarters since.
  • California State Teachers Retirement System (CalSTRS)'s Amentum Holdings position peaked at $6.99M in Q3 2024.
  • 460 funds tracked by Wall St. Rank held Amentum Holdings as of Q2 2026.

Based on California State Teachers Retirement System (CalSTRS)'s 13F filing for Q2 2026, filed 24 Aug 2026.