UBS Group’s United Microelectronic UMC Stock Holding History

UBS Group’s Portfolio UMC Stock Details UMC Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$1.25M	Sell	139,500 -255,000	-65%	-$2.49M	﹤0.01%	5369
2025 Q4	$3.1M	Buy	394,500 +54,400	+16%	+$413K	﹤0.01%	4532
2025 Q3	$2.58M	Buy	+340,100	New	+$2.41M	﹤0.01%	4710
2023 Q1	–	Sell	-1,250,000	Closed	-$8.16M	–	10405
2022 Q4	$8.16M	Hold	1,250,000	–	–	﹤0.01%	2078
2022 Q3	$6.96M	Buy	1,250,000 +422,900	+51%	+$2.79M	﹤0.01%	2078
2022 Q2	$5.6M	Buy	+827,100	New	+$6.79M	﹤0.01%	2280
2022 Q1	–	Sell	-200,000	Closed	-$2.34M	–	10930
2021 Q4	$2.34M	Sell	200,000 -250,000	-56%	-$2.78M	﹤0.01%	3588
2021 Q3	$5.14M	Sell	450,000 -300,000	-40%	-$3.22M	﹤0.01%	2639
2021 Q2	$7.09M	Buy	750,000 +200,000	+36%	+$1.87M	﹤0.01%	2337
2021 Q1	$5.01M	Buy	+550,000	New	+$5.09M	﹤0.01%	2589

Other funds holding UMC

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

AQR Capital Management Greenwich, Connecticut $218B AUM 29.41% 1-Year Est. Return

Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return

Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return

Man Group London, United Kingdom $55.1B AUM 24.23% 1-Year Est. Return

Qube Research & Technologies (QRT) London, United Kingdom $89.9B AUM 20.22% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

UBS Group's UMC Position: Q1 2026 in Review

UBS Group increased its United Microelectronic (UMC) stake by 79% in Q1 2026, buying an estimated $35.2M and bringing the position to 8,175,144 shares worth $73.4M. The position accounts for 0.01% of the portfolio, ranked #1282.

UBS Group first reported a position in UMC in Q4 2014 and has held it in 46 quarters since. The position peaked at $143M in Q3 2021. 317 funds tracked by Wall St. Rank hold UMC as of Q1 2026.

UBS Group held 8,175,144 shares of United Microelectronic worth $73.4M as of Q1 2026.
UBS Group bought 3,604,697 United Microelectronic shares in Q1 2026, an estimated $35.2M.
United Microelectronic made up 0.01% of UBS Group's portfolio in Q1 2026, its #1282 holding.
UBS Group first reported a position in United Microelectronic in Q4 2014 and has held it in 46 quarters since.
UBS Group's United Microelectronic position peaked at $143M in Q3 2021.
317 funds tracked by Wall St. Rank held United Microelectronic as of Q1 2026.

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