United Microelectronics Corp (UMC) SEC Filings

Browse and analyze financial disclosures, corporate filings, and regulatory documents.

Financial Reports (10-Q, 10-K)
Current Reports (8-K)
Ownership
SC 13G/A
Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend] Feb 05, 2024
SC 13G/A
Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend] Feb 10, 2023
SC 13G/A
Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend] Jun 09, 2020
SC 13G/A
Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend] Jun 09, 2020
SC 13G/A
Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend] Feb 06, 2020
SC 13G/A
Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend] Feb 06, 2020
SC 13G/A
Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend] Feb 13, 2019
SC 13G/A
Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend] Feb 06, 2019
SC 13G/A
Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend] Feb 06, 2019
Prospectuses & Registrations
S-8
Form S-8 - Securities to be offered to employees in employee benefit plans Dec 26, 2024
S-8
Form S-8 - Securities to be offered to employees in employee benefit plans Dec 28, 2022
Proxy Statements
Other Filings
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Apr 24, 2025
20-F
Form 20-F - Annual and transition report of foreign private issuers [Sections 13 or 15(d)] Apr 24, 2025
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Apr 23, 2025
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Apr 23, 2025
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Apr 10, 2025
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Apr 01, 2025
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Mar 20, 2025
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Mar 11, 2025
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Feb 26, 2025
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Feb 11, 2025
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jan 21, 2025
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jan 10, 2025
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Dec 27, 2024
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Dec 18, 2024
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Dec 11, 2024
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Nov 25, 2024
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Nov 14, 2024
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Nov 13, 2024
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Oct 30, 2024
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Oct 22, 2024
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Oct 09, 2024
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Sep 12, 2024
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Aug 19, 2024
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Aug 09, 2024
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jul 31, 2024
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jul 17, 2024
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jun 12, 2024
SD
Form SD - Specialized disclosure report May 31, 2024
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] May 30, 2024
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] May 23, 2024
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] May 14, 2024
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Apr 25, 2024
20-F
Form 20-F - Annual and transition report of foreign private issuers [Sections 13 or 15(d)] Apr 25, 2024
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Apr 24, 2024
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Apr 16, 2024
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Apr 03, 2024
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Mar 25, 2024
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Mar 25, 2024
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Mar 22, 2024
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Feb 27, 2024
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Feb 26, 2024
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jan 31, 2024
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jan 26, 2024
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jan 25, 2024
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Dec 26, 2023
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Nov 27, 2023
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Nov 14, 2023
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Oct 25, 2023
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Sep 25, 2023
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Aug 25, 2023
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Aug 22, 2023
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jul 26, 2023
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jul 25, 2023
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jun 26, 2023
SD
Form SD - Specialized disclosure report May 31, 2023
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] May 31, 2023
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] May 25, 2023
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] May 15, 2023
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Apr 27, 2023
20-F
Form 20-F - Annual and transition report of foreign private issuers [Sections 13 or 15(d)] Apr 27, 2023
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Apr 26, 2023
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Apr 25, 2023
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Mar 27, 2023
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Mar 20, 2023
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Feb 24, 2023
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Feb 22, 2023
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jan 30, 2023
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jan 17, 2023
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Dec 27, 2022
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Nov 25, 2022
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Nov 15, 2022
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Oct 26, 2022
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Oct 25, 2022
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Sep 26, 2022
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Aug 26, 2022
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Aug 25, 2022
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jul 27, 2022
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jul 25, 2022
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jun 27, 2022
SD
Form SD - Specialized disclosure report May 27, 2022
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] May 27, 2022
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] May 25, 2022
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] May 24, 2022
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Apr 28, 2022
20-F
Form 20-F - Annual and transition report of foreign private issuers [Sections 13 or 15(d)] Apr 28, 2022
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Apr 27, 2022
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Apr 26, 2022
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Apr 25, 2022
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Apr 06, 2022
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Mar 25, 2022
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Mar 15, 2022
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Feb 24, 2022
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Feb 14, 2022
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jan 27, 2022
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jan 25, 2022
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Dec 27, 2021
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Nov 26, 2021
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Nov 17, 2021
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Oct 27, 2021
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Oct 25, 2021
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Sep 27, 2021
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Sep 03, 2021
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Aug 25, 2021
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Aug 10, 2021
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jul 28, 2021
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jul 26, 2021
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jul 07, 2021
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jun 29, 2021
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jun 25, 2021
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jun 17, 2021
SD
Form SD - Specialized disclosure report May 28, 2021
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] May 25, 2021
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] May 21, 2021
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] May 05, 2021
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] May 04, 2021
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Apr 29, 2021
20-F
Form 20-F - Annual and transition report of foreign private issuers [Sections 13 or 15(d)] Apr 29, 2021
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Apr 28, 2021
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Mar 25, 2021
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Mar 15, 2021
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Feb 24, 2021
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jan 27, 2021
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Dec 28, 2020
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Nov 25, 2020
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Nov 12, 2020
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Nov 09, 2020
CORRESP
Form CORRESP - Correspondence Nov 06, 2020
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Oct 29, 2020
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Oct 26, 2020
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Oct 21, 2020
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Sep 25, 2020
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Sep 03, 2020
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Aug 25, 2020
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jul 29, 2020
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jul 27, 2020
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jun 29, 2020
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jun 12, 2020
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jun 10, 2020
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jun 05, 2020
SD
Form SD - May 29, 2020
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] May 26, 2020
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] May 12, 2020
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Apr 28, 2020
20-F
Form 20-F - Annual and transition report of foreign private issuers [Sections 13 or 15(d)] Apr 28, 2020
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Apr 27, 2020
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Mar 25, 2020
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Mar 10, 2020
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Feb 26, 2020
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Feb 05, 2020
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jan 30, 2020
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Dec 26, 2019
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Nov 25, 2019
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Nov 04, 2019
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Oct 30, 2019
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Oct 28, 2019
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Sep 30, 2019
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Sep 25, 2019
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Sep 25, 2019
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Aug 27, 2019
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jul 31, 2019
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jul 24, 2019
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jul 22, 2019
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jun 25, 2019
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jun 19, 2019
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jun 12, 2019
SD
Form SD - May 31, 2019
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] May 28, 2019
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] May 08, 2019
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Apr 25, 2019
20-F
Form 20-F - Annual and transition report of foreign private issuers [Sections 13 or 15(d)] Apr 25, 2019
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Apr 24, 2019
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Mar 26, 2019
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Mar 22, 2019
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Mar 18, 2019
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Mar 06, 2019
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Feb 25, 2019
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jan 29, 2019
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Jan 25, 2019
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Dec 26, 2018
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Dec 18, 2018
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Nov 26, 2018
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Nov 13, 2018
6-K
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16] Nov 06, 2018

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Financial Analysis
Financial Statements Stock Forecast Price Target Technical Analysis Stock Splits Employee Count
Company Intelligence
Ownership Insider Trading SEC Filings Congress Trading News Earnings Call Transcripts
Income & Revenue
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Valuation
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Returns & Ratios
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Balance Sheet
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Dividends
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