What percentage of UMC is owned by institutions?

Based on Q1 2026 13F filings, institutional ownership of United Microelectronics Corporation stands at 2.7%, held across 307 reporting institutions.

Who is the largest institutional holder of UMC?

BlackRock, Inc. is the largest reported institutional holder of UMC, with approximately 27,495,880 shares worth $0.25B as of Q1 2026.

Is UMC a hedge fund favorite?

Yes — 3 widely-followed marquee investors appear among the top 25 institutional holders of UMC, including TWO SIGMA INVESTMENTS, LP, SUSQUEHANNA INTERNATIONAL GROUP, LLP, MILLENNIUM MANAGEMENT LLC.

What is UMC's Smart Money Score?

Our composite Smart Money Score for UMC is 77 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.

How many institutions bought UMC this quarter?

76 institutions opened new positions in UMC during Q1 2026, while 31 fully exited. 197 added to existing positions and 33 trimmed.

How is institutional ownership of UMC changing?

UMC institutional ownership rose by 0.53 percentage points quarter-over-quarter, with a net change of +45 holders.

How concentrated is UMC ownership among the top holders?

The top 10 institutions account for 61.8% of all reported 13F value in UMC, and the top 25 account for 85.8%.

Where does this UMC institutional ownership data come from?

All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.

United Microelectronics Corporation (UMC) Institutional Ownership Q1 2026 | Top 13F Holders

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United Microelectronics Corporation (UMC) Institutional Ownership Q1 2026 | Top 13F Holders | VCP Scanner

Top Institutional Holders of UMC

Ranked by reported Q1 2026 13F market value

Top 10 Holders

61.8%

Top 25 Holders

85.8%

Share of total reported institutional value in UMC held by the largest 10 / 25 filers.

#	Institution	Shares Held	Market Value	QoQ Change	Ownership %	% of Fund
1	BlackRock, Inc.	27.5M	$246.9M	+1.9%	1.102%	0.00%
2	AQR CAPITAL MANAGEMENT LLC	14.7M	$132.1M	+55.5%	0.590%	0.06%
3	TWO SIGMA INVESTMENTS, LP	9.7M	$86.7M	+70.1%	0.387%	0.07%
4	VANGUARD CAPITAL MANAGEMENT LLC	9.0M	$80.7M	—	0.360%	0.00%
5	MORGAN STANLEY	8.8M	$78.8M	+14.5%	0.352%	0.00%
6	UBS Group AG	8.5M	$76.5M	+71.5%	0.341%	0.01%
7	GOLDMAN SACHS GROUP INC	5.9M	$52.8M	+24.3%	0.235%	0.01%
8	Man Group plc	5.7M	$51.4M	+169.7%	0.230%	0.09%
9	Qube Research & Technologies Ltd	5.1M	$45.8M	+1839.0%	0.204%	0.05%
10	STATE STREET CORP	5.0M	$45.0M	+3.8%	0.201%	0.00%
11	Rafferty Asset Management, LLC	5.0M	$44.8M	-23.1%	0.200%	0.18%
12	BARCLAYS PLC	4.7M	$42.6M	-14.0%	0.190%	0.02%
13	CITIGROUP INC	4.3M	$38.6M	+42.8%	0.172%	0.02%
14	NORTHERN TRUST CORP	3.2M	$28.7M	-0.6%	0.128%	0.00%
15	DIMENSIONAL FUND ADVISORS LP	2.8M	$25.6M	+13.2%	0.114%	0.01%
16	SUSQUEHANNA INTERNATIONAL GROUP, LLP	2.8M	$24.8M	+257.5%	0.111%	0.00%
17	VANGUARD PORTFOLIO MANAGEMENT LLC	2.8M	$24.8M	—	0.111%	0.00%
18	BANK OF AMERICA CORP /DE/	2.6M	$23.4M	-53.5%	0.104%	0.00%
19	Creative Planning	2.4M	$21.2M	+9.4%	0.095%	0.01%
20	D. E. Shaw & Co., Inc.	1.9M	$17.0M	+117.4%	0.076%	0.02%
21	MILLENNIUM MANAGEMENT LLC	1.9M	$16.6M	—	0.074%	0.01%
22	BNP PARIBAS ARBITRAGE, SA	1.6M	$14.2M	+7.3%	0.063%	0.01%
23	BNP Paribas Asset Management Holding S.A.	1.0M	$9.4M	+238.9%	0.042%	0.01%
24	MATTHEWS INTERNATIONAL CAPITAL MANAGEMENT LLC	978K	$8.8M	—	0.039%	3.56%
25	Moran Wealth Management, LLC	910K	$8.2M	+14.9%	0.036%	0.25%

denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in UMC — a direct measure of their conviction.

UMC Institutional Ownership by Quarter

8 quarters of 13F filings · Δ columns show change vs prior quarter

Quarter	Inst. Holders	Δ Holders	Ownership %	Δ Ownership	Total 13F Value	Δ Value
Q1 2026	307	+17%	2.69%	+0.53 pp	$1.45B	+25%
Q4 2025	262	+13%	2.16%	+0.31 pp	$1.16B	+16%
Q3 2025	232	0.9%	1.85%	0.20 pp	$1.00B	9.6%
Q2 2025	234	+3.5%	2.05%	+0.04 pp	$1.11B	+2.2%
Q1 2025	226	9.2%	2.01%	+0.20 pp	$1.08B	+11%
Q4 2024	249	3.1%	1.81%	0.36 pp	$977M	17%
Q3 2024	257	+12%	2.17%	+0.02 pp	$1.17B	+0.9%
Q2 2024	230	—	2.15%	—	$1.16B	—

Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.

United Microelectronics Corporation (UMC) Institutional Ownership

AI Insights & Key Takeaways

Top Institutional Holders of UMC

Quarterly Institutional Activity

New Buyers

Exited Positions

UMC Institutional Ownership by Quarter

UMC — Frequently Asked Questions