UMC - Company ID 0001033767
UNITED MICROELECTRONICS CORP has filed 704 public company documents between 1997 and 2026. The most frequent type is 6-k (557 filings), alongside the regular cadence of annual reports, quarterly reports, and event disclosures every public company must make. Use the filters to focus on one filing type, or flip the sort to trace the company's history from its earliest paperwork.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.
| Type | Filing | Filed | Period covered | Open |
|---|---|---|---|---|
| 6-K | 6-K | 22y ago2003-12-16 | 2003-12-15 | View filing |
| 6-K | 6-K | 22y ago2003-11-14 | 2003-11-14 | View filing |
| 6-K | 6-K | 22y ago2003-10-16 | 2003-10-16 | View filing |
| 6-K | 6-K | 22y ago2003-09-24 | 2003-09-24 | View filing |
| 6-K | 6-K | 22y ago2003-09-16 | 2003-09-15 | View filing |
| 6-K | 6-K | 22y ago2003-08-19 | 2003-08-19 | View filing |
| 6-K | 6-K | 22y ago2003-07-17 | 2003-07-17 | View filing |
| 6-K | 6-K | 23y ago2003-07-15 | 2003-07-15 | View filing |
| 6-K | 6-K | 23y ago2003-07-08 | 2003-07-08 | View filing |
| 6-K | 6-K | 23y ago2003-06-27 | 2003-06-27 | View filing |
| 20-F | 20-F | 23y ago2003-06-25 | 2002-12-31 | View filing |
| 6-K | 6-K | 23y ago2003-06-17 | 2003-06-16 | View filing |
| 6-K | 6-K | 23y ago2003-05-19 | 2003-05-19 | View filing |
| 6-K | 6-K | 23y ago2003-04-16 | 2003-04-15 | View filing |
| 6-K | 6-K | 23y ago2003-03-25 | 2003-03-25 | View filing |
| SC 13G | Passive ownership stake | 23y ago2003-03-24 | - | View filing |
| 6-K | 6-K | 23y ago2003-03-17 | 2003-03-13 | View filing |
| 6-K | 6-K | 23y ago2003-02-18 | 2003-02-17 | View filing |
| SC 13G | Passive ownership stake | 23y ago2003-02-13 | - | View filing |
| S-8 | Employee stock plan | 23y ago2003-01-21 | - | View filing |
| 6-K | 6-K | 23y ago2003-01-03 | 2003-01-03 | View filing |