United Microelectronics Corp

Symbol: UMC on NYSE
Entity: Company
Industry: Semiconductors & Related Devices (Office Of Manufacturing)
Business address: 8 F, No.68, Sec. 1, Neihu Rd.,, 11493 Taipei, Taiwan, Province of China
Phone: 886-2-2658-9168
State of incorporation: Taiwan, Province of China
Fiscal year end: December 31
Category: Large accelerated filer
All SEC filings: View on sec.gov

United Microelectronics Corp has filed 617 SEC EDGAR filings since 2/14/1997

Latest Filings

Form type	Document	Filing	Description	Filing date	Reporting date	File number(s)
SD	Open Document	Open Filing	FORM SD	May 29, 2025		001-15128
6-K	Open Document	Open Filing	6-K	May 28, 2025	May 28, 2025	001-15128
6-K	Open Document	Open Filing	6-K	May 15, 2025	May 15, 2025	001-15128
6-K	Open Document	Open Filing	6-K	May 8, 2025	May 8, 2025	001-15128
6-K	Open Document	Open Filing	6-K	Apr 24, 2025	Apr 24, 2025	001-15128
20-F	Open Document \| Data	Open Filing	FORM 20-F	Apr 24, 2025	Dec 31, 2024	001-15128
6-K	Open Document	Open Filing	6-K	Apr 23, 2025	Apr 23, 2025	001-15128
6-K	Open Document	Open Filing	6-K	Apr 23, 2025	Apr 23, 2025	001-15128
6-K	Open Document	Open Filing	6-K	Apr 10, 2025	Apr 10, 2025	001-15128
6-K	Open Document	Open Filing	6-K	Apr 1, 2025	Apr 1, 2025	001-15128
6-K	Open Document	Open Filing	6-K	Mar 20, 2025	Dec 31, 2024	001-15128
6-K	Open Document	Open Filing	6-K	Mar 11, 2025	Mar 11, 2025	001-15128
6-K	Open Document	Open Filing	6-K	Feb 26, 2025	Feb 26, 2025	001-15128
6-K	Open Document	Open Filing	6-K	Feb 11, 2025	Feb 11, 2025	001-15128
6-K	Open Document	Open Filing	6-K	Jan 21, 2025	Jan 21, 2025	001-15128
6-K	Open Document	Open Filing	6-K	Jan 13, 2025	Jan 10, 2025	001-15128
6-K	Open Document	Open Filing	6-K	Dec 27, 2024	Dec 27, 2024	001-15128
S-8	Open Document	Open Filing		Dec 26, 2024		333-284047
6-K	Open Document	Open Filing	6-K	Dec 18, 2024	Dec 18, 2024	001-15128
6-K	Open Document	Open Filing	6-K	Dec 11, 2024	Dec 11, 2024	001-15128
6-K	Open Document	Open Filing	6-K	Nov 25, 2024	Nov 25, 2024	001-15128
6-K	Open Document	Open Filing	6-K	Nov 14, 2024	Nov 14, 2024	001-15128
6-K	Open Document	Open Filing	6-K	Nov 13, 2024	Sep 30, 2024	001-15128
6-K	Open Document	Open Filing	6-K	Oct 30, 2024	Oct 30, 2024	001-15128
6-K	Open Document	Open Filing	6-K	Oct 22, 2024	Oct 22, 2024	001-15128
6-K	Open Document	Open Filing	6-K	Oct 9, 2024	Oct 9, 2024	001-15128
6-K	Open Document	Open Filing	6-K	Sep 12, 2024	Sep 12, 2024	001-15128
6-K	Open Document	Open Filing	6-K	Aug 19, 2024	Aug 19, 2024	001-15128
6-K	Open Document	Open Filing	6-K	Aug 9, 2024	Jun 30, 2024	001-15128
6-K	Open Document	Open Filing	6-K	Jul 31, 2024	Jul 31, 2024	001-15128
6-K	Open Document	Open Filing	6-K	Jul 17, 2024	Jul 17, 2024	001-15128
6-K	Open Document	Open Filing	6-K	Jun 12, 2024	Jun 12, 2024	001-15128
SD	Open Document	Open Filing	FORM SD	May 31, 2024		001-15128
6-K	Open Document	Open Filing	6-K	May 30, 2024	May 30, 2024	001-15128
6-K	Open Document	Open Filing	FORM 6-K	May 23, 2024	May 23, 2024	001-15128
6-K	Open Document	Open Filing	6-K	May 14, 2024	Mar 31, 2024	001-15128
6-K	Open Document	Open Filing	6-K	Apr 25, 2024	Apr 25, 2024	001-15128
20-F	Open Document \| Data	Open Filing	FORM 20-F	Apr 25, 2024	Dec 31, 2023	001-15128
6-K	Open Document	Open Filing	6-K	Apr 24, 2024	Apr 24, 2024	001-15128
6-K	Open Document	Open Filing	6-K	Apr 16, 2024	Apr 16, 2024	001-15128
6-K	Open Document	Open Filing	6-K	Apr 3, 2024	Apr 3, 2024	001-15128
6-K	Open Document	Open Filing	6-K	Mar 25, 2024	Mar 25, 2024	001-15128
6-K	Open Document	Open Filing	6-K	Mar 25, 2024	Dec 31, 2023	001-15128
6-K	Open Document	Open Filing	6-K	Mar 22, 2024	Mar 22, 2024	001-15128
6-K	Open Document	Open Filing	6-K	Feb 27, 2024	Feb 27, 2024	001-15128
6-K	Open Document	Open Filing	6-K	Feb 26, 2024	Feb 26, 2024	001-15128
SC 13G/A	Open Document	Open Filing		Feb 5, 2024		005-60399
6-K	Open Document	Open Filing	6-K	Jan 31, 2024	Jan 31, 2024	001-15128
6-K	Open Document	Open Filing	6-K	Jan 26, 2024	Jan 26, 2024	001-15128
6-K	Open Document	Open Filing	6-K	Jan 25, 2024	Jan 25, 2024	001-15128

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