SDIC
AMTM

South Dakota Investment Council’s Amentum Holdings AMTM Stock Holding History

South Dakota Investment Council’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 		$3.21M Hold
123,037
– – 0.06% 239
2025
Q4 		$3.57M Buy
123,037
+58,617
+91% +$1.5M 0.07% 221
2025
Q3 		$1.54M Buy
+64,420
New +$1.57M 0.03% 352

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

South Dakota Investment Council's AMTM Position: Q1 2026 in Review

South Dakota Investment Council held its Amentum Holdings (AMTM) position steady in Q1 2026 at 123,037 shares worth $3.21M. The position accounts for 0.06% of the portfolio, ranked #239.

South Dakota Investment Council first reported a position in AMTM in Q3 2025 and has held it in 3 quarters since. The position peaked at $3.57M in Q4 2025. 486 funds tracked by Wall St. Rank hold AMTM as of Q1 2026.

  • South Dakota Investment Council held 123,037 shares of Amentum Holdings worth $3.21M as of Q1 2026.
  • South Dakota Investment Council left its Amentum Holdings share count unchanged in Q1 2026.
  • Amentum Holdings made up 0.06% of South Dakota Investment Council's portfolio in Q1 2026, its #239 holding.
  • South Dakota Investment Council first reported a position in Amentum Holdings in Q3 2025 and has held it in 3 quarters since.
  • South Dakota Investment Council's Amentum Holdings position peaked at $3.57M in Q4 2025.
  • 486 funds tracked by Wall St. Rank held Amentum Holdings as of Q1 2026.

Based on South Dakota Investment Council's 13F filing for Q1 2026, filed 18 May 2026.