SI
AMTM

Stephens Inc’s Amentum Holdings AMTM Stock Holding History

Stephens Inc’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 		$424K Sell
20,516
-2,879
-12% -$69.6K ﹤0.01% 951
2026
Q1 		$610K Buy
23,395
+840
+4% +$26.4K 0.01% 794
2025
Q4 		$654K Sell
22,555
-3,401
-13% -$86.9K 0.01% 757
2025
Q3 		$622K Sell
25,956
-1,944
-7% -$47.3K 0.01% 783
2025
Q2 		$659K Sell
27,900
-4,829
-15% -$101K 0.01% 740
2025
Q1 		$596K Sell
32,729
-3,973
-11% -$80.9K 0.01% 754
2024
Q4 		$772K Sell
36,702
-4,224
-10% -$109K 0.01% 675
2024
Q3 		$1.32M Buy
+40,926
New +$1.17M 0.02% 537

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

Stephens Inc's AMTM Position: Q2 2026 in Review

Stephens Inc reduced its Amentum Holdings (AMTM) stake by 12% in Q2 2026, selling an estimated $69.6K and leaving 20,516 shares worth $424K. The position accounts for ﹤0.01% of the portfolio, ranked #951.

Stephens Inc first reported a position in AMTM in Q3 2024 and has held it in 8 quarters since. The position peaked at $1.32M in Q3 2024. 460 funds tracked by Wall St. Rank hold AMTM as of Q2 2026.

  • Stephens Inc held 20,516 shares of Amentum Holdings worth $424K as of Q2 2026.
  • Stephens Inc sold 2,879 Amentum Holdings shares in Q2 2026, an estimated $69.6K.
  • Amentum Holdings made up ﹤0.01% of Stephens Inc's portfolio in Q2 2026, its #951 holding.
  • Stephens Inc first reported a position in Amentum Holdings in Q3 2024 and has held it in 8 quarters since.
  • Stephens Inc's Amentum Holdings position peaked at $1.32M in Q3 2024.
  • 460 funds tracked by Wall St. Rank held Amentum Holdings as of Q2 2026.

Based on Stephens Inc's 13F filing for Q2 2026, filed 29 Jul 2026.