UNITED MICROELECTRONICS CORP - UMC
All tracked SEC files for this issuer. Showing up to 200 latest records.
Need parsed ownership details (13D/13G with shares/percent)?
Open ownership details
Form 4 = insider transactions report. Form 144 = notice of proposed sale (not a completed trade confirmation).
Files summary
Total files loaded: 27
Latest filed: Apr 21, 2026
| Form | Count |
|---|---|
| 6-K | 27 |
Latest files
| Filed | Form | Report period | Accession | SEC |
|---|---|---|---|---|
| Apr 21, 2026 | 6-K | Apr 21, 2026 | 0001193125-26-164977 | View |
| Apr 15, 2026 | 6-K | Apr 15, 2026 | 0001193125-26-155859 | View |
| Apr 08, 2026 | 6-K | Apr 08, 2026 | 0001193125-26-146257 | View |
| Mar 26, 2026 | 6-K | Mar 26, 2026 | 0001193125-26-124974 | View |
| Mar 12, 2026 | 6-K | Mar 12, 2026 | 0001193125-26-103006 | View |
| Mar 05, 2026 | 6-K | Mar 05, 2026 | 0001193125-26-092413 | View |
| Feb 25, 2026 | 6-K | Feb 25, 2026 | 0001193125-26-068351 | View |
| Feb 25, 2026 | 6-K | Feb 25, 2026 | 0001193125-26-068366 | View |
| Feb 24, 2026 | 6-K | Feb 24, 2026 | 0001193125-26-065068 | View |
| Feb 13, 2026 | 6-K | Feb 13, 2026 | 0001193125-26-049677 | View |
| Feb 05, 2026 | 6-K | Feb 05, 2026 | 0001193125-26-038388 | View |
| Jan 28, 2026 | 6-K | Jan 28, 2026 | 0001193125-26-025557 | View |
| Jan 14, 2026 | 6-K | Jan 14, 2026 | 0001193125-26-012225 | View |
| Jan 07, 2026 | 6-K | Jan 07, 2026 | 0001193125-26-005368 | View |
| Dec 30, 2025 | 6-K | Dec 30, 2025 | 0001193125-25-335826 | View |
| Dec 17, 2025 | 6-K | Dec 17, 2025 | 0001193125-25-321620 | View |
| Dec 10, 2025 | 6-K | Dec 10, 2025 | 0001193125-25-313406 | View |
| Dec 04, 2025 | 6-K | Dec 04, 2025 | 0001193125-25-307415 | View |
| Nov 28, 2025 | 6-K | Nov 28, 2025 | 0001193125-25-301178 | View |
| Nov 20, 2025 | 6-K | Nov 20, 2025 | 0001193125-25-288768 | View |
| Nov 12, 2025 | 6-K | Nov 12, 2025 | 0001193125-25-275805 | View |
| Nov 06, 2025 | 6-K | Nov 06, 2025 | 0001193125-25-267954 | View |
| Oct 29, 2025 | 6-K | Oct 29, 2025 | 0001193125-25-254520 | View |
| Oct 29, 2025 | 6-K | Oct 29, 2025 | 0001193125-25-254523 | View |
| Oct 28, 2025 | 6-K | Oct 28, 2025 | 0001193125-25-252138 | View |
| Oct 27, 2025 | 6-K | Oct 27, 2025 | 0001193125-25-250653 | View |
| Oct 21, 2025 | 6-K | Oct 21, 2025 | 0001193125-25-244241 | View |