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: 38
Latest filed: Jul 21, 2026
Form Count
6-K 35
4 2
SCHEDULE 13G/A 1

Latest files

Filed Form Report period Accession SEC
Jul 21, 2026 6-K Jul 21, 2026 0001193125-26-309462 View
Jul 15, 2026 6-K Jul 15, 2026 0001193125-26-303966 View
Jul 14, 2026 6-K Jul 14, 2026 0001193125-26-302459 View
Jul 13, 2026 4 Jul 13, 2026 0001193125-26-301380 View
Jul 06, 2026 6-K Jul 06, 2026 0001193125-26-295459 View
Jun 30, 2026 4 Jun 30, 2026 0001193125-26-291233 View
Jun 29, 2026 6-K Jun 29, 2026 0001193125-26-286731 View
Jun 23, 2026 6-K Jun 23, 2026 0001193125-26-278424 View
Jun 22, 2026 6-K Jun 22, 2026 0001193125-26-276606 View
Jun 18, 2026 6-K Jun 18, 2026 0001193125-26-274873 View
Jun 16, 2026 6-K Jun 16, 2026 0001193125-26-271747 View
Jun 05, 2026 6-K Jun 05, 2026 0001193125-26-258291 View
Jun 03, 2026 6-K Jun 03, 2026 0001193125-26-254481 View
May 27, 2026 6-K May 27, 2026 0001193125-26-240337 View
May 22, 2026 6-K May 22, 2026 0001193125-26-235406 View
May 20, 2026 6-K May 20, 2026 0001193125-26-231655 View
May 15, 2026 6-K May 15, 2026 0001193125-26-225017 View
May 13, 2026 6-K May 13, 2026 0001193125-26-220535 View
May 12, 2026 6-K May 12, 2026 0001193125-26-218058 View
May 11, 2026 6-K May 11, 2026 0001193125-26-215564 View
May 08, 2026 6-K May 08, 2026 0001193125-26-213164 View
May 07, 2026 6-K May 07, 2026 0001193125-26-210117 View
Apr 30, 2026 6-K Apr 30, 2026 0001193125-26-193804 View
Apr 29, 2026 SCHEDULE 13G/A — 0002012383-26-001777 View
Apr 29, 2026 6-K Apr 29, 2026 0001193125-26-188788 View
Apr 29, 2026 6-K Apr 29, 2026 0001193125-26-188808 View
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