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6-K

United Microelectronics Corp (UMC)

6-K 2026-02-13 For: 2026-02-13
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Added on April 10, 2026

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

February 13, 2026

(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
By: Chitung Liu
Name: Chitung Liu
Title: CFO

Date: February 13, 2026

EXHIBIT INDEX

Exhibit Description
99 6K on 02/13/2026

EX-99

img239034952_0.jpg www.umc.com

Exhibit

Exhibit Description

99.1 Announcement on 2026/02/13: Announcement of the Company's Board Meeting Date of 2025 Financial Reports

99.2 Announcement on 2026/02/09: the trading and pledge of UMC common shares by directors, executive officers and 10% shareholders of UMC

Exhibit 99.1

Announcement of the Company's Board Meeting Date of 2025 Financial Reports

  1. Date of a notice of the board of directors meeting is issued: 2026/02/13

  2. Expected date of the board of directors meeting is convened: 2026/02/25

  3. Expected year and quarter of the financial reports or the annual self-assessed financial information submitted to the board of directors or approved by the board of directors: 2025 Financial Reports

  4. Any other matters that need to be specified: None

Exhibit 99.2

United Microelectronics Corporation

For the month of January, 2026

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;

  • The trading of directors, executive officers and 10% shareholders
Title Name Number of shares as of December 31, 2025 Number of shares as of January 31, 2026 Changes
Independent Director Su Lin Wang -- 101,000 101,000
  • The pledge and clear of pledge of UMC common shares by directors, executive officers and 10% shareholders:
Title Name Number of shares as of December 31, 2025 Number of shares as of January 31, 2026 Changes
-- -- -- -- --