United Microelectronics Corp (UMC) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

77,915,274Shares Outstanding

1,574,962Shares held by institutions

$16,174,860Value of institutional holdings

169.53%Institutional ownership %

3.56%Shares Changed QoQ

216No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

The institutional landscape for United Microelectronics Corp (NYSE:UMC) includes 249 filers as of the latest reporting cycle ending December 2025.

Institutional ownership in United Microelectronics edged up to 187.2% in December 2025, compared to 164.3% in September 2025.
Institutional share ownership changed by 16.61% QoQ, while the number of institutional owners saw no change YoY.
A review of institutional activity for United Microelectronics shows 167 of 249 filers increasing their positions, while 49 reduced their stake, and 33 remained unchanged.
This class of investors increased its holdings in United Microelectronics to 151.62Mn shares for the 13F-cycle ending December 2025, up by 21.59Mn shares quarter on quarter, and down 8.49Mn shares year over year.
The top institutional stake in United Microelectronics as of December 31, 2025 belongs to BlackRock, Inc., which owns 26.98Mn shares, or 33.31% of the company.
Among the most significant buyers of United Microelectronics during December 2025 were AQR CAPITAL MANAGEMENT LLC (8.49Mn), BlackRock, Inc. (2.84Mn), ACADIAN ASSET MANAGEMENT LLC (2.27Mn), TWO SIGMA INVESTMENTS, LP (2.14Mn), MARSHALL WACE, LLP (1.94Mn).
Leading sellers of United Microelectronics stock in December 2025 included MORGAN STANLEY (14.18Mn), BANK OF AMERICA CORP /DE/ (1.79Mn), VANGUARD GROUP INC (728.40K), JPMORGAN CHASE & CO (466.69K), NORTHERN TRUST CORP (211.10K).
The top 10 institutional holders of United Microelectronics for the quarter ending December 2025 included BlackRock, Inc. (26.98Mn), VANGUARD GROUP INC (13.52Mn), AQR CAPITAL MANAGEMENT LLC (9.46Mn), MORGAN STANLEY (7.67Mn), Rafferty Asset Management, LLC (6.48Mn), TWO SIGMA INVESTMENTS, LP (5.68Mn), BANK OF AMERICA CORP /DE/ (5.60Mn), BARCLAYS PLC (5.51Mn), UBS Group AG (4.96Mn), STATE STREET CORP (4.83Mn).

249 Institutional Holders

1,574,962 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	26,983,515	2,842,754	11.78%	$212,090,432.00
VANGUARD GROUP INC	31 Dec, 2025	13,524,036	-728,404	-5.11%	$106,298,923.00
AQR CAPITAL MANAGEMENT LLC	31 Dec, 2025	9,464,312	8,492,466	873.85%	$74,389,493.00
MORGAN STANLEY	31 Dec, 2025	7,668,830	-14,182,537	-64.90%	$60,277,022.00
Rafferty Asset Management, LLC	31 Dec, 2025	6,477,830	257,129	4.13%	$50,915,744.00
TWO SIGMA INVESTMENTS, LP	31 Dec, 2025	5,675,393	2,144,829	60.75%	$44,608,589.00
BANK OF AMERICA CORP /DE/	31 Dec, 2025	5,603,690	-1,785,178	-24.16%	$44,045,006.00
BARCLAYS PLC	31 Dec, 2025	5,511,784	1,435,780	35.23%	$43,322,622.00
UBS Group AG	31 Dec, 2025	4,964,947	1,202,912	31.98%	$39,024,483.00
STATE STREET CORP	31 Dec, 2025	4,828,090	298,314	6.59%	$37,948,787.00
MARSHALL WACE, LLP	31 Dec, 2025	4,739,326	1,937,921	69.18%	$37,251,102.00
GOLDMAN SACHS GROUP INC	31 Dec, 2025	4,725,906	314,056	7.12%	$37,145,618.00
SCHRODER INVESTMENT MANAGEMENT GROUP	31 Dec, 2025	4,104,976	-47,953	-1.15%	$32,675,609.00
TWO SIGMA ADVISERS, LP	31 Dec, 2025	3,449,200	1,839,500	114.28%	$27,110,712.00
NORTHERN TRUST CORP	31 Dec, 2025	3,217,883	-211,103	-6.16%	$25,292,560.00
CITIGROUP INC	31 Dec, 2025	3,008,360	713,114	31.07%	$23,645,710.00
DIMENSIONAL FUND ADVISORS LP	31 Dec, 2025	2,516,726	432,141	20.73%	$19,781,465.00
ACADIAN ASSET MANAGEMENT LLC	31 Dec, 2025	2,297,586	2,270,065	8,248.48%	$18,048.00
Creative Planning	31 Dec, 2025	2,160,185	314,214	17.02%	$16,979,053.00
Man Group plc	31 Dec, 2025	2,123,977	1,641,444	340.17%	$16,694,459.00

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