$UMC SEC Filings

Filing Filed On
FORM 6-K 26 Aug 2022
6-K 25 Aug 2022
6-K 27 Jul 2022
6-K 25 Jul 2022
6-K 27 Jun 2022
6-K 27 May 2022
6-K 25 May 2022
6-K 24 May 2022
6-K 28 Apr 2022
6-K 27 Apr 2022
6-K 26 Apr 2022
6-K 25 Apr 2022
6-K 06 Apr 2022
6-K 25 Mar 2022
FORM 6-K 15 Mar 2022
6-K 24 Feb 2022
6-K 14 Feb 2022
6-K 27 Jan 2022
6-K 25 Jan 2022
6-K 27 Dec 2021