UBS Group’s Ambarella AMBA Stock Holding History

UBS Group’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
2018 Q1	–	Sell	-18,600	Closed	-$1.09M	–	7779
2017 Q4	$1.09M	Buy	+18,600	New	+$1.03M	﹤0.01%	3712
2017 Q2	–	Sell	-34,000	Closed	-$1.86M	–	7630
2017 Q1	$1.86M	Buy	+34,000	New	+$1.83M	﹤0.01%	3012
2016 Q1	–	Sell	-36,600	Closed	-$2.04M	–	7599
2015 Q4	$2.04M	Sell	36,600 -48,700	-57%	-$2.74M	﹤0.01%	2776
2015 Q3	$4.93M	Hold	85,300	–	–	﹤0.01%	1931
2015 Q2	$8.76M	Buy	85,300 +83,100	+3,777%	+$7.26M	0.01%	1574
2015 Q1	$167K	Sell	2,200 -1,400	-39%	-$85K	﹤0.01%	5017
2014 Q4	$183K	Buy	+3,600	New	+$168K	﹤0.01%	5131

Other funds holding AMBA

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

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) Canada, Ontario, Canada $116B AUM 26.37% 1-Year Est. Return

Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return

Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return

Legal & General Group London, United Kingdom $432B AUM 29.4% 1-Year Est. Return

UBS Group's AMBA Position: Q1 2026 in Review

UBS Group reduced its Ambarella (AMBA) stake by 51% in Q1 2026, selling an estimated $20M and leaving 314,046 shares worth $16.2M. The position accounts for ﹤0.01% of the portfolio, ranked #2826.

UBS Group first reported a position in AMBA in Q4 2014 and has held it in 46 quarters since. The position peaked at $67.8M in Q3 2025. 305 funds tracked by Wall St. Rank hold AMBA as of Q1 2026.

UBS Group held 314,046 shares of Ambarella worth $16.2M as of Q1 2026.
UBS Group sold 321,518 Ambarella shares in Q1 2026, an estimated $20M.
Ambarella made up ﹤0.01% of UBS Group's portfolio in Q1 2026, its #2826 holding.
UBS Group first reported a position in Ambarella in Q4 2014 and has held it in 46 quarters since.
UBS Group's Ambarella position peaked at $67.8M in Q3 2025.
305 funds tracked by Wall St. Rank held Ambarella as of Q1 2026.

Based on UBS Group's 13F filing for Q1 2026, filed 5 May 2026.