Vanguard Portfolio Management
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Vanguard Portfolio Management’s Ambarella AMBA Stock Holding History

Vanguard Portfolio Management’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
Q3 		$213M Sell
3,068,540
-619,865
-17% -$44.8M 0.01% 1141
2026
Q2 		$316M Sell
3,688,405
-28,458
-0.8% -$1.96M 0.01% 951
2026
Q1 		$191M Buy
+3,716,863
New +$232M 0.01% 1163

Other funds holding AMBA

BlackRock
BlackRock New York $6.79T AUM 37.06% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.44T AUM 36.12% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.76T AUM
Manulife (Manufacturers Life Insurance)
Manulife (Manufacturers Life Insurance) Canada, Ontario, Canada $126B AUM 27.87% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.96T AUM 27.49% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Connor, Clark & Lunn Investment Management (CC&L)
Connor, Clark & Lunn Investment Management (CC&L) Vancouver, British Columbia, Canada $57.2B AUM 42.49% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return
Stephens Investment Management Group
Stephens Investment Management Group Houston, Texas $9.29B AUM 41.16% 1-Year Est. Return
Exchange Traded Concepts
Exchange Traded Concepts Oklahoma City, Oklahoma $25.3B AUM 51.52% 1-Year Est. Return

Vanguard Portfolio Management's AMBA Position: Q3 2026 in Review

Vanguard Portfolio Management reduced its Ambarella (AMBA) stake by 17% in Q3 2026, selling an estimated $44.8M and leaving 3,068,540 shares worth $213M. The position accounts for 0.01% of the portfolio, ranked #1141.

Vanguard Portfolio Management first reported a position in AMBA in Q1 2026 and has held it in 3 quarters since. The position peaked at $316M in Q2 2026. 249 funds tracked by Wall St. Rank hold AMBA as of Q3 2026.

  • Vanguard Portfolio Management held 3,068,540 shares of Ambarella worth $213M as of Q3 2026.
  • Vanguard Portfolio Management sold 619,865 Ambarella shares in Q3 2026, an estimated $44.8M.
  • Ambarella made up 0.01% of Vanguard Portfolio Management's portfolio in Q3 2026, its #1141 holding.
  • Vanguard Portfolio Management first reported a position in Ambarella in Q1 2026 and has held it in 3 quarters since.
  • Vanguard Portfolio Management's Ambarella position peaked at $316M in Q2 2026.
  • 249 funds tracked by Wall St. Rank held Ambarella as of Q3 2026.

Based on Vanguard Portfolio Management's 13F filing for Q3 2026, filed 13 Nov 2026.