Rockefeller Capital Management
AMTM

Rockefeller Capital Management’s Amentum Holdings AMTM Stock Holding History

Rockefeller Capital Management’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 		$111K Sell
4,251
-161
-4% -$5.05K ﹤0.01% 2818
2025
Q4 		$128K Sell
4,412
-1,279
-22% -$32.7K ﹤0.01% 2593
2025
Q3 		$136K Buy
+5,691
New +$139K ﹤0.01% 2415

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

Rockefeller Capital Management's AMTM Position: Q1 2026 in Review

Rockefeller Capital Management reduced its Amentum Holdings (AMTM) stake by 3.6% in Q1 2026, selling an estimated $5.05K and leaving 4,251 shares worth $111K. The position accounts for ﹤0.01% of the portfolio, ranked #2818.

Rockefeller Capital Management first reported a position in AMTM in Q3 2025 and has held it in 3 quarters since. The position peaked at $136K in Q3 2025. 486 funds tracked by Wall St. Rank hold AMTM as of Q1 2026.

  • Rockefeller Capital Management held 4,251 shares of Amentum Holdings worth $111K as of Q1 2026.
  • Rockefeller Capital Management sold 161 Amentum Holdings shares in Q1 2026, an estimated $5.05K.
  • Amentum Holdings made up ﹤0.01% of Rockefeller Capital Management's portfolio in Q1 2026, its #2818 holding.
  • Rockefeller Capital Management first reported a position in Amentum Holdings in Q3 2025 and has held it in 3 quarters since.
  • Rockefeller Capital Management's Amentum Holdings position peaked at $136K in Q3 2025.
  • 486 funds tracked by Wall St. Rank held Amentum Holdings as of Q1 2026.

Based on Rockefeller Capital Management's 13F filing for Q1 2026, filed 14 May 2026.