Banco Santander’s Ambarella AMBA Stock Holding History

Banco Santander’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	–	Sell	-9,446	Closed	-$669K	–	473
2025 Q4	$669K	Hold	9,446	–	–	0.01%	350
2025 Q3	$779K	Buy	+9,446	New	+$686K	0.01%	337

Other funds holding AMBA

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Manulife (Manufacturers Life Insurance) Canada, Ontario, Canada $128B AUM 35.83% 1-Year Est. Return

Millennium Management New York $276B AUM 44.8% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

Citadel Advisors Miami, Florida $875B AUM 40.91% 1-Year Est. Return

Legal & General Group London, United Kingdom $480B AUM 42.84% 1-Year Est. Return

Banco Santander's AMBA Position: Q1 2026 in Review

Banco Santander sold out of Ambarella (AMBA) in Q1 2026, closing a stake of 9,446 shares — an estimated $669K sold.

Banco Santander first reported a position in AMBA in Q3 2025 and held it in 2 quarters. The position peaked at $779K in Q3 2025. 307 funds tracked by Wall St. Rank hold AMBA as of Q1 2026.

Banco Santander reported no remaining Ambarella position as of Q1 2026 after selling out during the quarter.
Banco Santander sold 9,446 Ambarella shares in Q1 2026, an estimated $669K.
Banco Santander first reported a position in Ambarella in Q3 2025 and held it in 2 quarters.
Banco Santander's Ambarella position peaked at $779K in Q3 2025.
307 funds tracked by Wall St. Rank held Ambarella as of Q1 2026.

Based on Banco Santander's 13F filing for Q1 2026, filed 8 May 2026.