United Microelectronics Corporation – Filings and Transcripts

NYSE: UMC
Share price (9/14/26): $21.90
Market cap (9/14/26): $55.1 billion

Warning: Large portions of this site require JavaScript enabled in order to function properly. Please make sure JavaScript is enabled in your browser.

Please let us know at support@bamsec.com if you have any questions or concerns.

Search in Documents

Key Exhibits

External Links

Financials Filter

ended 12/31/25 FY 2025

ended 12/31/24 FY 2024

ended 12/31/23 FY 2023

ended 12/31/22 FY 2022

ended 12/31/21 FY 2021

Prospectuses and Registrations Filter

Registration of securities for employees

Registration of securities for employees

Post-effective amendment of registration of ADRs

Post-effective amendment of registration of ADRs

Registration of ADR shares, immediately effective

Ownership Filter

News Filter

Exhibit Description

Announcement That the Proceeds for the 2nd Domestic Unsecured Convertible Corporate Bonds Have Been Fully Received

The Board of Directors Resolved to Issue the 7th Unsecured Overseas Convertible Bonds

Exhibit Description 99.1 Announcement on 2026/08/11: To Announce the Registration of Capital Reduction Due to Cancellation of the RSA

Exhibit Description 99.1 Announcement on 2026/08/06: July Revenue

Proxies

No filings in this category.

Other Filter

Conflict Minerals disclosure

Conflict Minerals disclosure

Conflict Minerals disclosure

Conflict Minerals disclosure

Conflict Minerals disclosure