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	-11,800	Closed	-$693K	–	7780
2017 Q4	$693K	Buy	+11,800	New	+$656K	﹤0.01%	4061
2016 Q2	–	Sell	-60,000	Closed	-$2.68M	–	7688
2016 Q1	$2.68M	Buy	60,000 +59,800	+29,900%	+$2.48M	﹤0.01%	2408
2015 Q4	$11K	Sell	200 -1,000	-83%	-$56.4K	﹤0.01%	7209
2015 Q3	$70K	Buy	1,200 +1,000	+500%	+$94.4K	﹤0.01%	5516
2015 Q2	$21K	Sell	200 -1,900	-90%	-$166K	﹤0.01%	6813
2015 Q1	$159K	Buy	2,100 +600	+40%	+$36.4K	﹤0.01%	5056
2014 Q4	$76K	Buy	+1,500	New	+$70.1K	﹤0.01%	5982

Other funds holding AMBA

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

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

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

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

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

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

UBS Group's AMBA Position: Q2 2026 in Review

UBS Group reduced its Ambarella (AMBA) stake by 54% in Q2 2026, selling an estimated $11.8M and leaving 143,071 shares worth $12.3M. The position accounts for ﹤0.01% of the portfolio, ranked #3223.

UBS Group first reported a position in AMBA in Q4 2014 and has held it in 47 quarters since. The position peaked at $67.8M in Q3 2025. 341 funds tracked by Wall St. Rank hold AMBA as of Q2 2026.

UBS Group held 143,071 shares of Ambarella worth $12.3M as of Q2 2026.
UBS Group sold 170,975 Ambarella shares in Q2 2026, an estimated $11.8M.
Ambarella made up ﹤0.01% of UBS Group's portfolio in Q2 2026, its #3223 holding.
UBS Group first reported a position in Ambarella in Q4 2014 and has held it in 47 quarters since.
UBS Group's Ambarella position peaked at $67.8M in Q3 2025.
341 funds tracked by Wall St. Rank held Ambarella as of Q2 2026.

Based on UBS Group's 13F filing for Q2 2026, filed 13 Aug 2026.