Company · Ownership research

UNITED MICROELECTRONICS CORP UMC

CIK 0001033767 · CUSIP 910873405

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 910873405 (UMC), not CUSIP 910873955 (UMC), CUSIP 910873905 (UMC), and does not merge CUSIPs.

This page lists the top 20 of 242 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	BlackRock Inc. CIK 1364742 · View history	$179.01M 22,127,558 shares	0.00%	+479.82K(+2.20%)Added	SEC filing ↗ May 10, 2024	▾
02	VANGUARD GROUP INC CIK 102909 · View history	$124.09M 15,339,014 shares	0.00%	-529.80K(-3.30%)Reduced	SEC filing ↗ May 10, 2024	▾
03	MORGAN STANLEY CIK 895421 · Amended · View history	$69.63M 8,606,328 shares	0.01%	+2.02M(+30.70%)Added	SEC filing ↗ Oct 17, 2024	▾
04	UBS Group AG CIK 1610520 · View history	$67.70M 8,368,390 shares	0.02%	+1.62M(+23.90%)Added	SEC filing ↗ May 13, 2024	▾
05	Fisher Asset Management, LLC CIK 850529 · View history	$64.00M 7,910,866 shares	0.03%	+1.34M(+20.30%)Added	SEC filing ↗ May 9, 2024	▾
06	BANK OF AMERICA CORP /DE/ CIK 70858 · Amended · View history	$62.02M 7,666,251 shares	0.01%	+3.39M(+79.30%)Added	SEC filing ↗ May 15, 2024	▾
07	GOLDMAN SACHS GROUP INC CIK 886982 · View history	$56.07M 6,931,034 shares	0.01%	+2.43M(+54.00%)Added	SEC filing ↗ May 15, 2024	▾
08	Rafferty Asset Management, LLC CIK 1389426 · View history	$53.62M 6,627,992 shares	0.20%	+2.19M(+49.40%)Added	SEC filing ↗ May 13, 2024	▾
09	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP CIK 1164508 · View history	$34.73M 4,293,557 shares	0.03%	-2.12M(-33.10%)Reduced	SEC filing ↗ May 15, 2024	▾
10	CITIGROUP INC CIK 831001 · View history	$32.34M 3,997,416 shares	0.04%	+2.36M(+144.20%)Added	SEC filing ↗ May 10, 2024	▾
11	STATE STREET CORP CIK 93751 · View history	$29.28M 3,619,261 shares	0.00%	+37.87K(+1.10%)Added	SEC filing ↗ May 15, 2024	▾
12	BARCLAYS PLC CIK 312069 · Amended · View history	$27.45M 3,393,457 shares	0.01%	+703.52K(+26.20%)Added	SEC filing ↗ Mar 24, 2026	▾
13	SCHRODER INVESTMENT MANAGEMENT GROUP CIK 1086619 · View history	$26.61M 3,289,653 shares	0.03%	-187.23K(-5.40%)Reduced	SEC filing ↗ May 14, 2024	▾
14	MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history	$19.07M 2,357,334 shares	0.02%	+1.33M(+129.20%)Added	SEC filing ↗ May 15, 2024	▾
15	Genesis Investment Management, LLP CIK 1300979 · View history	$17.27M 2,134,600 shares	3.60%	+2.13MNew	SEC filing ↗ Apr 18, 2024	▾
16	BNP PARIBAS FINANCIAL MARKETS CIK 1166588 · View history	$15.47M 1,911,750 shares	0.02%	+187.17K(+10.90%)Added	SEC filing ↗ May 1, 2024	▾
17	Crossmark Global Holdings, Inc. CIK 1539204 · View history	$10.68M 1,320,238 shares	0.20%	-49.50K(-3.60%)Reduced	SEC filing ↗ May 13, 2024	▾
18	NOMURA HOLDINGS INC CIK 1163653 · View history	$8.97M 1,109,298 shares	0.07%	+482.66K(+77.00%)Added	SEC filing ↗ May 15, 2024	▾
19	NORTHERN TRUST CORP CIK 73124 · View history	$8.57M 1,059,651 shares	0.00%	-121.78K(-10.30%)Reduced	SEC filing ↗ May 14, 2024	▾
20	RHUMBLINE ADVISERS CIK 1115418 · View history	$7.51M 928,144 shares	0.01%	+367(0.00%)Added	SEC filing ↗ May 9, 2024	▾

Showing 20 / 242 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

242

Cancelled or null records excluded

Disclosed shares

131,931,156

Not deduplicated across managers

Disclosed value

$1.07B

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

UNITED MICROELECTRONICS CORP · Q1 2024

Explore all 242 reporting institutions.

This page includes 20 of 242 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.