UNITED MICROELECTRONICS CORP reports

Company location: Taipei, Taiwan
Fiscal year end: 31 December

UNITED MICROELECTRONICS CORP has filed 732 SEC EDGAR filings since 14 Feb 1997

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SEC filing history

Showing 76-100 of 426 matching filings.

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6-K File 001-15128

6-K

Filing date: 10 Jun 2025
Reporting date: 10 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

6-K File 001-15128

6-K

Filing date: 05 Jun 2025
Reporting date: 05 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

6-K File 001-15128

6-K

Filing date: 04 Jun 2025
Reporting date: 04 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

6-K File 001-15128

6-K

Filing date: 28 May 2025
Reporting date: 28 May 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

6-K File 001-15128

6-K

Filing date: 15 May 2025
Reporting date: 15 May 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

6-K File 001-15128

6-K

Filing date: 08 May 2025
Reporting date: 08 May 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

6-K File 001-15128

6-K

Filing date: 24 Apr 2025
Reporting date: 24 Apr 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

6-K File 001-15128

6-K

Filing date: 23 Apr 2025
Reporting date: 23 Apr 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

6-K File 001-15128

6-K

Filing date: 23 Apr 2025
Reporting date: 23 Apr 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

6-K File 001-15128

6-K

Filing date: 10 Apr 2025
Reporting date: 10 Apr 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

6-K File 001-15128

6-K

Filing date: 01 Apr 2025
Reporting date: 01 Apr 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

6-K File 001-15128

6-K

Filing date: 20 Mar 2025
Reporting date: 31 Dec 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

6-K File 001-15128

6-K

Filing date: 11 Mar 2025
Reporting date: 11 Mar 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

6-K File 001-15128

6-K

Filing date: 26 Feb 2025
Reporting date: 26 Feb 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

6-K File 001-15128

6-K

Filing date: 11 Feb 2025
Reporting date: 11 Feb 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

6-K File 001-15128

6-K

Filing date: 21 Jan 2025
Reporting date: 21 Jan 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

6-K File 001-15128

6-K

Filing date: 13 Jan 2025
Reporting date: 10 Jan 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

6-K File 001-15128

6-K

Filing date: 27 Dec 2024
Reporting date: 27 Dec 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

6-K File 001-15128

6-K

Filing date: 18 Dec 2024
Reporting date: 18 Dec 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

6-K File 001-15128

6-K

Filing date: 11 Dec 2024
Reporting date: 11 Dec 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

6-K File 001-15128

6-K

Filing date: 25 Nov 2024
Reporting date: 25 Nov 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

6-K File 001-15128

6-K

Filing date: 14 Nov 2024
Reporting date: 14 Nov 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

6-K File 001-15128

6-K

Filing date: 13 Nov 2024
Reporting date: 30 Sep 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

6-K File 001-15128

6-K

Filing date: 30 Oct 2024
Reporting date: 30 Oct 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

6-K File 001-15128

6-K

Filing date: 22 Oct 2024
Reporting date: 22 Oct 2024
SEC evidence: Open document Open filing
Next action: Verify source filing