Marshall Wace
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Marshall Wace’s Ambarella AMBA Stock Holding History

Marshall Wace’s Portfolio AMBA Stock Details AMBA Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$97.8K Sell
1,900
-4,300
-69% -$268K ﹤0.01% 2904
2025
Q4 		$439K Sell
6,200
-33,500
-84% -$2.71M ﹤0.01% 2292
2025
Q3 		$3.28M Buy
+39,700
New +$2.88M ﹤0.01% 1381

Other funds holding AMBA

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Manulife (Manufacturers Life Insurance)
Manulife (Manufacturers Life Insurance) Canada, Ontario, Canada $116B AUM 26.37% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return
Legal & General Group
Legal & General Group London, United Kingdom $432B AUM 29.4% 1-Year Est. Return

Marshall Wace's AMBA Position: Q1 2026 in Review

Marshall Wace reduced its Ambarella (AMBA) stake by 22% in Q1 2026, selling an estimated $4.3M and leaving 249,542 shares worth $12.8M. The position accounts for 0.01% of the portfolio, ranked #860.

Marshall Wace first reported a position in AMBA in Q2 2014 and has held it in 22 quarters since. The position peaked at $62.8M in Q4 2021. 305 funds tracked by Wall St. Rank hold AMBA as of Q1 2026.

  • Marshall Wace held 249,542 shares of Ambarella worth $12.8M as of Q1 2026.
  • Marshall Wace sold 68,946 Ambarella shares in Q1 2026, an estimated $4.3M.
  • Ambarella made up 0.01% of Marshall Wace's portfolio in Q1 2026, its #860 holding.
  • Marshall Wace first reported a position in Ambarella in Q2 2014 and has held it in 22 quarters since.
  • Marshall Wace's Ambarella position peaked at $62.8M in Q4 2021.
  • 305 funds tracked by Wall St. Rank held Ambarella as of Q1 2026.

Based on Marshall Wace's 13F filing for Q1 2026, filed 15 May 2026.