United Microelectronics UMC Institutional Ownership

NYSE UMC

$18.88 +0.34 (+1.86%)

As of: Oct 23, 2026 · 3:59 PM EDT

Institutions by Trading Activity

362 Institutions

Increased 220 60.8%

Unchanged 33 9.1%

Reduced 109 30.1%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

7.15%

▲+0.22 pp QoQ

Shares Held by Institutions

179.95Mn

of 2.52Bn outstanding

▲+3.23% QoQ

Shares Outstanding

2.52Bn

2.34Bn held outside 13F filers

Institutional Investors

362

filed 13F for Jun 2026

▲+44 vs prior quarter

Net Shares Added (QoQ)

+5.63Mn

accumulated since last quarter

Value of Holdings

$3.33Bn

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

Updated Oct 21, 2026

United Microelectronics Corp (NYSE:UMC) had 362 institutional holders reporting a position on Form 13F for the quarter ended June 30, 2026.

These investors held 7.15% of outstanding shares in Q2 2026, up from 6.92% the quarter before.
Total holdings of UMC shares rose 3.23% from Q1 2026, and the holder count rose 52.74% from Q2 2025.
Of these 362 holders, 220 added to their positions, 109 reduced their stakes and 33 left their positions unchanged.
Altogether, institutional holders owned 179.95Mn UMC shares at the end of Q2 2026, up 5.63Mn from the prior quarter and up 51.17Mn from a year earlier.
BlackRock, Inc. led 13F holders of UMC with 31.54Mn shares as of June 30, 2026, or 1.25% of shares outstanding.
The biggest increases in UMC positions during Q2 2026 came from Bank of America Corp (+7.58Mn shares), Goldman Sachs Group Inc (+5.23Mn shares), BlackRock, Inc. (+4.05Mn shares), Neuberger Berman Group LLC (+4.02Mn shares) and UBS Group AG (+3.46Mn shares).
On the other side, among holders that kept a position in United Microelectronics, the largest reductions in Q2 2026 came from AQR Capital Management LLC (-7Mn shares), Two Sigma Investments, LP (-6.57Mn shares), Acadian Asset Management LLC (-2.37Mn shares), D. E. Shaw & Co., Inc. (-1.7Mn shares) and Vanguard Portfolio Management LLC (-1.53Mn shares).
Per Business Quant, the top 10 investors in UMC for the quarter ended June 30, 2026 were BlackRock, Inc. (31.54Mn shares), UBS Group AG (11.63Mn shares), Goldman Sachs Group Inc (11.11Mn shares), Bank of America Corp (10.18Mn shares), Vanguard Capital Management LLC (8.6Mn shares), Morgan Stanley (8.29Mn shares), AQR Capital Management LLC (7.72Mn shares), Rafferty Asset Management, LLC (7.65Mn shares), Acadian Asset Management LLC (5.75Mn shares) and Man Group plc (5.59Mn shares).

Form 13F Holdings

364 Institutional Holders

Report period 30 Jun, 2026

Total shares held 179.95Mn

Of outstanding 7.15%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	31,544,454	1.25%	▲4,048,574	+14.72%	$858.32Mn
2	UBS Group AG	0001610520	11,632,967	0.46%	▲3,457,823	+42.30%	$316.53Mn
3	Goldman Sachs Group Inc	0000886982	11,109,785	0.44%	▲5,234,921	+89.11%	$302.30Mn
4	Bank Of America Corp /De/	0000070858	10,181,208	0.40%	▲7,577,990	+291.10%	$277.03Mn
5	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	8,601,967	0.34%	▼386,476	-4.30%	$234.06Mn
6	Morgan Stanley	0000895421	8,285,573	0.33%	▼492,330	-5.61%	$225.45Mn
7	AQR CAPITAL MANAGEMENT LLC	0001167557	7,718,125	0.31%	▼6,995,905	-47.55%	$210.01Mn
8	Rafferty Asset Management, LLC	0001389426	7,653,378	0.30%	▲2,669,725	+53.57%	$208.25Mn
9	ACADIAN ASSET MANAGEMENT LLC	0000916542	5,753,245	0.23%	▼2,370,954	-29.18%	$156.53K
10	Man Group plc	0001637460	5,593,427	0.22%	▼135,474	-2.36%	$152.20Mn
11	Citigroup Inc	0000831001	5,414,362	0.22%	▲1,117,640	+26.01%	$147.32Mn
12	Barclays Plc	0000312069	4,892,286	0.19%	▲153,419	+3.24%	$133.12Mn
13	State Street Corp	0000093751	4,878,124	0.19%	▼135,085	-2.69%	$132.73Mn
14	Neuberger Berman Group LLC	0001465109	4,134,788	0.16%	▲4,020,723	+3,524.94%	$111.02Mn
15	Northern Trust Corp	0000073124	3,986,872	0.16%	▲787,998	+24.63%	$108.48Mn
16	Jpmorgan Chase & Co	0000019617	3,660,899	0.15%	▲3,400,195	+1,304.24%	$98.26Mn
17	DIMENSIONAL FUND ADVISORS LP	0000354204	3,218,824	0.13%	▲369,087	+12.95%	$87.58Mn
18	TWO SIGMA INVESTMENTS, LP	0001179392	3,088,852	0.12%	▼6,566,550	-68.01%	$84.05Mn
19	Creative Planning	0001540235	2,450,717	0.10%	▲86,346	+3.65%	$66.68Mn
20	Tidal Investments LLC	0001600064	2,355,267	0.09%	▲759,116	+47.56%	$64.09Mn

Showing 1 to 20 of 364 holders