United Microelectronics UMC Institutional Ownership

NYSE UMC

$18.34 +0.34 (+1.89%)

At close: Aug 21, 2026 · 4:00 PM EDT

Institutions by Trading Activity

312 Institutions

Increased 211 67.6%

Unchanged 42 13.5%

Reduced 59 18.9%

Ownership Statistics

13F · as of 31 Mar, 2026

Institutional Ownership

0.14%

▲+0.01 pp QoQ

Shares Held by Institutions

174.23Mn

of 125.79Bn outstanding

▲+29.80% QoQ

Shares Outstanding

125.79Bn

125.61Bn held outside 13F filers

Institutional Investors

312

filed 13F for Mar 2026

▲+48 vs prior quarter

Net Shares Added (QoQ)

+40.00Mn

accumulated since last quarter

Value of Holdings

$3.22Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 31 Mar, 2026

United Microelectronics Corp (NYSE:UMC) is held by 312 institutional investors per 13F filings through March 2026.

They owned 0.1% of outstanding stock in March 2026, up from 0.1% the prior quarter.
Their total shares held in UMC increased 29.8% quarter over quarter, and separately, investors owning United Microelectronics increased 33.33% from a year ago.
Of these 312 funds, 211 grew their exposure to United Microelectronics, 59 cut back, and 42 maintained positions.
The aggregate institutional position in United Microelectronics amounted to 174.23Mn shares as of March 2026, up by 40.0Mn shares quarter on quarter, and up 2.89Mn shares year over year.
BlackRock, Inc. holds the largest position in UMC at 27.5Mn shares as of March 31, 2026, or 0.02% of shares outstanding.
The largest buyers of United Microelectronics for the quarter ending March 2026 were VANGUARD CAPITAL MANAGEMENT LLC (8.99Mn), ACADIAN ASSET MANAGEMENT LLC (5.83Mn), AQR CAPITAL MANAGEMENT LLC (5.25Mn), Qube Research & Technologies Ltd (4.84Mn), TWO SIGMA INVESTMENTS, LP (3.98Mn).
The largest sales of UMC for the quarter ending March 2026 came from MARSHALL WACE, LLP (4.53Mn), SCHRODER INVESTMENT MANAGEMENT GROUP (3.81Mn), Goldman Sachs Group Inc (3.58Mn), Bank Of America Corp /De/ (3.0Mn), Rafferty Asset Management, LLC (1.49Mn).
Per Business Quant, the top 10 investors in UMC for the quarter ending March 2026 include BlackRock, Inc. (27.5Mn), AQR CAPITAL MANAGEMENT LLC (14.71Mn), TWO SIGMA INVESTMENTS, LP (9.66Mn), VANGUARD CAPITAL MANAGEMENT LLC (8.99Mn), Morgan Stanley (8.78Mn), UBS Group AG (8.18Mn), ACADIAN ASSET MANAGEMENT LLC (8.12Mn), Goldman Sachs Group Inc (5.87Mn), Man Group plc (5.73Mn), Qube Research & Technologies Ltd (5.1Mn).

Form 13F Holdings

312 Institutional Holders

Report period 31 Mar, 2026

Total shares held 174.23Mn

Of outstanding 0.14%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	27,495,880	0.02%	▲512,365	+1.90%	$246.91Mn
2	AQR CAPITAL MANAGEMENT LLC	0001167557	14,714,030	0.01%	▲5,249,718	+55.47%	$132.13Mn
3	TWO SIGMA INVESTMENTS, LP	0001179392	9,655,402	0.01%	▲3,980,009	+70.13%	$86.71Mn
4	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	8,988,443	0.01%	▲8,988,443	0.00%	$80.72Mn
5	Morgan Stanley	0000895421	8,777,903	0.01%	▲1,109,073	+14.46%	$78.83Mn
6	UBS Group AG	0001610520	8,175,144	0.01%	▲3,604,697	+78.87%	$73.41Mn
7	ACADIAN ASSET MANAGEMENT LLC	0000916542	8,124,199	0.01%	▲5,826,613	+253.60%	$72.94K
8	Goldman Sachs Group Inc	0000886982	5,874,864	0.00%	▼3,576,948	-37.84%	$52.76Mn
9	Man Group plc	0001637460	5,728,901	0.00%	▲3,604,924	+169.73%	$51.45Mn
10	Qube Research & Technologies Ltd	0001729829	5,101,879	0.00%	▲4,838,763	+1,839.02%	$45.81Mn
11	State Street Corp	0000093751	5,013,209	0.00%	▲185,119	+3.83%	$45.02Mn
12	Rafferty Asset Management, LLC	0001389426	4,983,653	0.00%	▼1,494,177	-23.07%	$44.75Mn
13	Barclays Plc	0000312069	4,738,867	0.00%	▼772,917	-14.02%	$42.56Mn
14	Citigroup Inc	0000831001	4,296,722	0.00%	▲1,288,362	+42.83%	$38.58Mn
15	Northern Trust Corp	0000073124	3,198,874	0.00%	▼19,009	-0.59%	$28.73Mn
16	DIMENSIONAL FUND ADVISORS LP	0000354204	2,849,737	0.00%	▲333,011	+13.23%	$25.59Mn
17	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	2,763,082	0.00%	▲2,763,082	0.00%	$24.81Mn
18	Bank Of America Corp /De/	0000070858	2,603,218	0.00%	▼3,000,472	-53.54%	$23.38Mn
19	JANE STREET GROUP, LLC	0001595888	2,570,219	0.00%	▲2,111,066	+459.77%	$23.08Mn
20	Creative Planning	0001540235	2,364,371	0.00%	▲204,186	+9.45%	$21.23Mn

Showing 1 to 20 of 312 holders