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
Q2 		– Sell
-800
Closed -$41.2K – 3132
2026
Q1 		$41.2K Sell
800
-14,000
-95% -$873K ﹤0.01% 2993
2025
Q4 		$1.05M Sell
14,800
-15,100
-51% -$1.22M ﹤0.01% 1899
2025
Q3 		$2.47M Buy
+29,900
New +$2.17M ﹤0.01% 1514

Other funds holding AMBA

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Manulife (Manufacturers Life Insurance)
Manulife (Manufacturers Life Insurance) Canada, Ontario, Canada $128B AUM 35.83% 1-Year Est. Return
Legal & General Group
Legal & General Group London, United Kingdom $480B AUM 42.84% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
MMH
Menora Mivtachim Holdings Ramat Gan, Israel $25.6B AUM 50.04% 1-Year Est. Return
SIMG
Stephens Investment Management Group Houston, Texas $9.33B AUM 56.1% 1-Year Est. Return

Marshall Wace's AMBA Position: Q2 2026 in Review

Marshall Wace sold out of Ambarella (AMBA) in Q2 2026, closing a stake of 249,542 shares — an estimated $12.8M sold.

Marshall Wace first reported a position in AMBA in Q2 2014 and held it in 22 quarters. The position peaked at $62.8M in Q4 2021. 342 funds tracked by Wall St. Rank hold AMBA as of Q2 2026.

  • Marshall Wace reported no remaining Ambarella position as of Q2 2026 after selling out during the quarter.
  • Marshall Wace sold 249,542 Ambarella shares in Q2 2026, an estimated $12.8M.
  • Marshall Wace first reported a position in Ambarella in Q2 2014 and held it in 22 quarters.
  • Marshall Wace's Ambarella position peaked at $62.8M in Q4 2021.
  • 342 funds tracked by Wall St. Rank held Ambarella as of Q2 2026.

Based on Marshall Wace's 13F filing for Q2 2026, filed 13 Aug 2026.