Stifel Financial
AMTM

Stifel Financial’s Amentum Holdings AMTM Stock Holding History

Stifel Financial’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 		$572K Sell
21,935
-8,615
-28% -$270K ﹤0.01% 2792
2025
Q4 		$886K Sell
30,550
-4,908
-14% -$125K ﹤0.01% 2521
2025
Q3 		$849K Buy
35,458
+2,453
+7% +$59.7K ﹤0.01% 2496
2025
Q2 		$779K Buy
33,005
+19,767
+149% +$413K ﹤0.01% 2500
2025
Q1 		$241K Sell
13,238
-33,696
-72% -$686K ﹤0.01% 3093
2024
Q4 		$987K Sell
46,934
-18,384
-28% -$475K ﹤0.01% 2249
2024
Q3 		$2.11M Buy
+65,318
New +$1.86M ﹤0.01% 1728

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

Stifel Financial's AMTM Position: Q1 2026 in Review

Stifel Financial reduced its Amentum Holdings (AMTM) stake by 28% in Q1 2026, selling an estimated $270K and leaving 21,935 shares worth $572K. The position accounts for ﹤0.01% of the portfolio, ranked #2792.

Stifel Financial first reported a position in AMTM in Q3 2024 and has held it in 7 quarters since. The position peaked at $2.11M in Q3 2024. 486 funds tracked by Wall St. Rank hold AMTM as of Q1 2026.

  • Stifel Financial held 21,935 shares of Amentum Holdings worth $572K as of Q1 2026.
  • Stifel Financial sold 8,615 Amentum Holdings shares in Q1 2026, an estimated $270K.
  • Amentum Holdings made up ﹤0.01% of Stifel Financial's portfolio in Q1 2026, its #2792 holding.
  • Stifel Financial first reported a position in Amentum Holdings in Q3 2024 and has held it in 7 quarters since.
  • Stifel Financial's Amentum Holdings position peaked at $2.11M in Q3 2024.
  • 486 funds tracked by Wall St. Rank held Amentum Holdings as of Q1 2026.

Based on Stifel Financial's 13F filing for Q1 2026, filed 12 May 2026.