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UNITED MICROELECTRONICS CORP — All Filings

670 total filings on record

Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.

Overview All Filings Financials Insiders
All 20-F 20-F/A 3 424B5 6-K 6-K/A CORRESP EFFECT F-3/A F-6 F-6 POS F-6EF S-8 SC 13D SC 13D/A SC 13G SC 13G/A SD UPLOAD
Form Description Accession Number Filed Period
6-K 6-K 0001193125-26-124974 Mar 26, 2026
3 3 0001193125-26-112213 Mar 18, 2026
3 3 0001193125-26-112206 Mar 18, 2026
3 3 0001193125-26-112192 Mar 18, 2026
3 3 0001193125-26-112179 Mar 18, 2026
3 3 0001193125-26-112172 Mar 18, 2026
3 3 0001193125-26-112166 Mar 18, 2026
3 3 0001193125-26-112156 Mar 18, 2026
3 3 0001193125-26-112138 Mar 18, 2026
3 3 0001193125-26-112131 Mar 18, 2026
3 3 0001193125-26-112118 Mar 18, 2026
6-K 6-K 0001193125-26-103006 Mar 12, 2026
6-K 6-K 0001193125-26-092413 Mar 5, 2026
6-K 6-K 0001193125-26-068366 Feb 25, 2026
6-K 6-K 0001193125-26-068351 Feb 25, 2026
6-K 6-K 0001193125-26-065068 Feb 24, 2026
6-K 6-K 0001193125-26-049677 Feb 13, 2026
6-K 6-K 0001193125-26-038388 Feb 5, 2026
6-K 6-K 0001193125-26-025557 Jan 28, 2026
6-K 6-K 0001193125-26-012225 Jan 14, 2026
6-K 6-K 0001193125-26-005368 Jan 7, 2026
6-K 6-K 0001193125-25-335826 Dec 30, 2025
6-K 6-K 0001193125-25-321620 Dec 17, 2025
6-K 6-K 0001193125-25-313406 Dec 10, 2025
6-K 6-K 0001193125-25-307415 Dec 4, 2025
6-K 6-K 0001193125-25-301178 Nov 28, 2025
6-K 6-K 0001193125-25-288768 Nov 20, 2025
6-K 6-K 0001193125-25-275805 Nov 12, 2025
6-K 6-K 0001193125-25-267954 Nov 6, 2025
6-K 6-K 0001193125-25-254523 Oct 29, 2025
6-K 6-K 0001193125-25-254520 Oct 29, 2025
6-K 6-K 0001193125-25-252138 Oct 28, 2025
6-K 6-K 0001193125-25-250653 Oct 27, 2025
6-K 6-K 0001193125-25-244241 Oct 21, 2025
6-K 6-K 0001193125-25-239494 Oct 15, 2025
6-K 6-K 0001193125-25-232535 Oct 7, 2025
6-K 6-K 0001193125-25-209921 Sep 22, 2025
6-K 6-K 0001033767-25-000006 Sep 10, 2025
6-K 6-K 0001033767-25-000004 Sep 4, 2025
6-K 6-K 0000950170-25-107596 Aug 13, 2025
6-K 6-K 0000950170-25-106904 Aug 12, 2025
6-K 6-K 0000950170-25-103509 Aug 6, 2025
6-K 6-K 0000950170-25-099867 Jul 30, 2025
6-K 6-K 0000950170-25-099865 Jul 30, 2025
6-K 6-K 0000950170-25-098932 Jul 28, 2025
6-K 6-K 0000950170-25-097409 Jul 22, 2025
6-K 6-K 0000950170-25-094919 Jul 10, 2025
6-K 6-K 0000950170-25-094136 Jul 7, 2025
6-K 6-K 0000950170-25-091201 Jun 30, 2025
6-K 6-K 0000950170-25-088159 Jun 20, 2025