TickerFacts.

A business in context

UMC research notebook

Read the disclosures. Follow the relationships. Keep the dates in view.

Research JSON

Filing timeline

Download filings CSV

SEC submissions · retrieved 2026-10-23 · 8022 issuers; up to 32 recent company reports and 8 ownership-change filings per issuer

  1. 6-K · Current report

    Report date 2026-10-13 · 0001193125-26-419602

  2. 6-K · Current report

    Report date 2026-10-06 · 0001193125-26-414888

  3. 6-K/A · Current report

    Report date 2026-10-05 · 0001193125-26-413417

  4. 6-K · Current report

    Report date 2026-10-05 · 0001193125-26-413371

  5. 6-K · Current report

    Report date 2026-09-29 · 0001193125-26-405903

  6. 4 · Ownership change

    Report date 2026-09-22 · 0001193125-26-397195

  7. 4 · Ownership change

    Report date 2026-09-16 · 0001193125-26-393652

  8. 4 · Ownership change

    Report date 2026-09-07 · 0001193125-26-384273

  9. 6-K · Current report

    Report date 2026-09-04 · 0001193125-26-382689

  10. 6-K · Current report

    Report date 2026-09-02 · 0001193125-26-379275

  11. 6-K · Current report

    Report date 2026-08-26 · 0001193125-26-365826

  12. 6-K · Current report

    Report date 2026-08-14 · 0001193125-26-350180

  13. 6-K · Current report

    Report date 2026-08-06 · 0001193125-26-336498

  14. 6-K · Current report

    Report date 2026-08-05 · 0001193125-26-333718

  15. 6-K · Current report

    Report date 2026-07-30 · 0001193125-26-324785

  16. 6-K · Current report

    Report date 2026-07-29 · 0001193125-26-322030

  17. 6-K · Current report

    Report date 2026-07-29 · 0001193125-26-322027

  18. 6-K · Current report

    Report date 2026-07-21 · 0001193125-26-309462

  19. 6-K · Current report

    Report date 2026-07-15 · 0001193125-26-303966

  20. 6-K · Current report

    Report date 2026-07-14 · 0001193125-26-302459

  21. 4 · Ownership change

    Report date 2026-07-13 · 0001193125-26-301380

  22. 6-K · Current report

    Report date 2026-07-06 · 0001193125-26-295459

  23. 4 · Ownership change

    Report date 2026-06-30 · 0001193125-26-291233

  24. 6-K · Current report

    Report date 2026-06-29 · 0001193125-26-286731

  25. 6-K · Current report

    Report date 2026-06-23 · 0001193125-26-278424

  26. 6-K · Current report

    Report date 2026-06-22 · 0001193125-26-276606

  27. 6-K · Current report

    Report date 2026-06-18 · 0001193125-26-274873

  28. 6-K · Current report

    Report date 2026-06-16 · 0001193125-26-271747

  29. 6-K · Current report

    Report date 2026-06-05 · 0001193125-26-258291

  30. 6-K · Current report

    Report date 2026-06-03 · 0001193125-26-254481

  31. 6-K · Current report

    Report date 2026-05-27 · 0001193125-26-240337

  32. 6-K · Current report

    Report date 2026-05-22 · 0001193125-26-235406

  33. 6-K · Current report

    Report date 2026-05-20 · 0001193125-26-231655

  34. 6-K · Current report

    Report date 2026-05-15 · 0001193125-26-225017

  35. 6-K · Current report

    Report date 2026-05-13 · 0001193125-26-220535

  36. 6-K · Current report

    Report date 2026-05-12 · 0001193125-26-218058

  37. 6-K · Current report

    Report date 2026-05-11 · 0001193125-26-215564

Reported insider transactions

Download transactions CSV

SEC insider transactions · retrieved 2026-10-23 · 2026 Q3: filings in this completed quarter; not a live transaction feed

Purchases and sales include open-market or private transactions. Grants, exercises and tax withholding are shown separately. Amendments and joint reports can overlap; rows are not a net-buying score. Prices retain the filing's units; consult its footnotes.

Transaction rows by code · counts, not monetary totals
Purchase: 0 transaction rows0PSale: 4 transaction rows4SGrant / award: 0 transaction rows0AExercise / conversion: 0 transaction rows0MTax / exercise payment: 0 transaction rows0FGift: 0 transaction rows0G
P · PurchaseS · SaleA · Grant / awardM · Exercise / conversionF · Tax / exercise paymentG · Gift

6 matching transaction rows.

Transaction / filedReporting ownerTypeSecuritySharesReported price
2026-09-22
2026-09-22
LIN JEN-TSUNGS · Sale
Disposed
Commin Shares10000.0163.0
2026-09-17
2026-09-17
Liu ChitungS · Sale
Disposed
Common Shares400000.0145.0
2026-09-16
2026-09-17
Liu ChitungS · Sale
Disposed
Common Shares1200000.0142.33
2026-09-07
2026-09-08
Liu ChitungJ · Other (see filing)
Disposed
Common Shares1000000.00.0
2026-09-07
2026-09-08
Liu ChitungJ · Other (see filing)
Acquired
Common Shares1000000.00.0
2026-07-13
2026-07-13
Liu ChitungS · Sale
Disposed
Common Shares1900000.0154.89

Identity & relationships

Wikidata structured data · retrieved 2026-10-23 · 1658 unambiguous CIK-linked entities; coverage is incomplete

These are sourced identity and relationship claims, with incomplete coverage. Headquarters locations do not describe sales, assets or operating exposure.

SEC issuer · 0001033767UNITED MICROELECTRONICS CORP
United Microelectronics (United States)

Showing 1 of 1 imported Wikidata subsidiary claims. Additional aliases appear below.

No parent relationship is available in this import; this is not proof of independence.

No verified LEI join available.

GLEIF legal entity reference data · retrieved 2026-10-23 · 1197 checked identities; 0 unavailable records

Search names and former names

View Wikidata identity and references ↗

  • United Microelectronics Corporation · alias · wikidata
  • UMC · alias · wikidata
  • United Microelectronics (United States) · subsidiary · wikidata
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Revenue in constant purchasing power

USD revenue expressed in 2026-09 consumer-price dollars. Each annual period uses a CPI-U average weighted by the days in its actual reporting interval. This is a purchasing-power comparison, not a company-specific price or volume measure.

No USD annual revenue periods with complete CPI coverage are available. Non-USD statements are not converted with U.S. CPI.

Bureau of Labor Statistics · retrieved 2026-10-23 · 9 selected series; gaps remain missing

Explore the CPI history ↗