UMC (NYSE: UMC) sets 2025 results board review and notes insider share increase

Rhea-AI Filing Summary

United Microelectronics Corporation filed a Form 6-K providing corporate schedule and insider ownership updates. The company announced that its board of directors is expected to meet on February 25, 2026 to review and approve the 2025 financial reports. The notice for this board meeting was issued on February 13, 2026. The filing also reports insider shareholdings for January 2026, showing that independent director Su Lin Wang held 101,000 UMC shares as of January 31, 2026, up from zero at December 31, 2025. No pledges or releases of pledges on UMC common shares by directors, executive officers, or 10% shareholders were reported for this period.

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

2

EXHIBIT INDEX

Exhibit		Description
99		6K on 02/13/2026

3

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;

1)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

2)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
--	--	--	--	--

FAQ

What did UMC (UMC) disclose in its latest Form 6-K?

UMC disclosed a scheduled board meeting and insider share changes. The board plans to meet on February 25, 2026 to review 2025 financial reports, and the filing details January 2026 shareholdings of directors, executives, and major shareholders, including one independent director increasing holdings.

When will UMCe28099s board review the 2025 financial reports?

UMC expects its board to review 2025 financial reports on February 25, 2026. A notice of this board meeting date was issued on February 13, 2026, indicating when the company plans formal board consideration of its 2025 financial results.

Which insider shareholding change did UMC report for January 2026?

UMC reported a new 101,000-share holding by independent director Su Lin Wang. The director held no shares on December 31, 2025 and 101,000 shares on January 31, 2026, reflecting a positive change of 101,000 UMC common shares during that period.

Did UMC report any pledges of common shares by insiders in January 2026?

No pledges or pledge releases of UMC common shares were reported. The table covering pledges and clears of pledges by directors, executive officers, and 10% shareholders for January 2026 showed no entries, indicating no such activity in that month.

What is Exhibit 99.1 in UMCe28099s February 2026 Form 6-K?

Exhibit 99.1 announces the board meeting date for 2025 financial reports. It states that notice of the board meeting was issued on February 13, 2026 and that the board is expected to convene on February 25, 2026 to handle the 2025 reports.

What information is included in Exhibit 99.2 of UMCe28099s Form 6-K?

Exhibit 99.2 reports January 2026 insider trading and pledges. It covers trading by directors, executive officers, and 10% shareholders, including independent director Su Lin Wange28099s 101,000-share holding, and confirms there were no share pledges or pledge clears in that month.

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