United Microelectronics Corp (UMC)
CIK 1033767 · operating company. SEC filings, financial statements, 10-K sections, 8-K items and insider trades for United Microelectronics Corp.
Recent SEC filings
| Filed | Form | Accession number |
|---|---|---|
| Sep 8, 2026 | 4 | 0001193125-26-384273 |
| Sep 4, 2026 | 6-K | 0001193125-26-382689 |
| Sep 2, 2026 | 6-K | 0001193125-26-379275 |
| Aug 26, 2026 | 6-K | 0001193125-26-365826 |
| Aug 14, 2026 | 6-K | 0001193125-26-350180 |
| Aug 6, 2026 | 6-K | 0001193125-26-336498 |
| Aug 5, 2026 | 6-K | 0001193125-26-333718 |
| Jul 30, 2026 | 6-K | 0001193125-26-324785 |
| Jul 29, 2026 | 6-K | 0001193125-26-322027 |
| Jul 29, 2026 | 6-K | 0001193125-26-322030 |
| Jul 21, 2026 | 6-K | 0001193125-26-309462 |
| Jul 15, 2026 | 6-K | 0001193125-26-303966 |
| Jul 14, 2026 | 6-K | 0001193125-26-302459 |
| Jul 13, 2026 | 4 | 0001193125-26-301380 |
| Jul 6, 2026 | 6-K | 0001193125-26-295459 |
| Jun 30, 2026 | 4 | 0001193125-26-291233 |
| Jun 29, 2026 | 6-K | 0001193125-26-286731 |
| Jun 23, 2026 | 6-K | 0001193125-26-278424 |
| Jun 22, 2026 | 6-K | 0001193125-26-276606 |
| Jun 18, 2026 | 6-K | 0001193125-26-274873 |
| Jun 16, 2026 | 6-K | 0001193125-26-271747 |
| Jun 5, 2026 | 6-K | 0001193125-26-258291 |
| Jun 3, 2026 | 6-K | 0001193125-26-254481 |
| May 29, 2026 | SD | 0001193125-26-246194 |
| May 27, 2026 | 6-K | 0001193125-26-240337 |