United Microelectronics Corp 6-K, filed Jun 10, 2025
United Microelectronics Corp (UMC)
About this 6-K
United Microelectronics Corp filed this 6-K on June 10, 2025.
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 6-K
REPORT OF FOREIGN ISSUER
PURSUANT TO RULE 13a-16 OR 15d-16
OF THE SECURITIES EXCHANGE ACT OF 1934
June 10, 2025
(Commission File Number: 001-15128)
United Microelectronics Corporation
(Translation of registrant’s name into English)
No. 3 Li-Hsin 2nd Road,
Hsinchu Science Park,
Hsinchu, Taiwan, R.O.C.
(Address of principal executive office)
Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.
Form 20-F Form 40-F
Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101 (b) (1):
Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101 (b) (7):
SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereto duly authorized.
United Microelectronics Corporation |
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By: |
Chitung Liu |
Name: |
Chitung Liu |
Title: |
CFO |
Date: June 10, 2025
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www.umc.com
Exhibit
Exhibit Description
99.1 Announcement on 2025/06/09: the trading and pledge of UMC common shares by directors, executive officers and 10% shareholders of UMC
Exhibit 99.1
United Microelectronics Corporation
For the month of May, 2025
This is to report 1) the trading of directors, executive officers and 10% shareholders of United Microelectronics Corporation (“UMC”) (NYSE: UMC); 2) the pledge and clear of pledge of UMC common shares by directors, executive officers and 10% shareholders of UMC;
Title |
Name |
Number of shares as of April 30, 2025 |
Number of shares as of May 31, 2025 |
Changes |
Executive Vice President Senior Vice President Vice President Vice President Vice President Vice President Vice President Vice President Vice President Vice President |
Ming Hsu Oliver Chang TS Wu C C Hsu S F Tzou Jerry CJ Hu Steven S Liu Francia Hsu Mindy Lin Eric Chen |
7,535,400 4,544,889 3,218,784 5,404,043 1,065,308 2,906,200 2,246,200 978,200 2,815,125 1,426,200 |
7,195,400 4,435,889 2,598,784 5,204,043 925,308 2,479,200 1,546,200 868,200 2,769,125 976,200 |
(340,000) (109,000) (620,000) (200,000) (140,000) (427,000) (700,000) (110,000) (46,000) (450,000) |
Title |
Name |
Number of shares as of April 30, 2025 |
Number of shares as of May 31, 2025 |
Changes |
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