Company Analysis

United Microelectronic Corp. (UMC)

NYSE: UMC · Semiconductors & Related Devices · Taipei, TW · filing with the SEC since 1997
Grade5.7
◀ Past 6.3● Present 6.2▶ Future 4.6
1 est.

Who runs United Microelectronic Corp.

Officers and directors as they report to the SEC on Forms 3, 4 and 5, named as filed
Chief executive, as filed
Wang Jason Shi
Chief Executive Officer. First filing Mar 2026, latest Mar 18, 2026, 0 filings in all.
Officers reporting now
24
of 30 people with a filing in the last fifteen months
Directors reporting now
6
30 people on the record since 2026
In the company's own wordswritten from its filings, read Sep 20, 2026

Jason Wang became chief executive in 2026. He joined UMC in 2008 as vice president of corporate marketing, ran UMC Group (USA), its North American arm, from 2009 to 2014, and became co-president in 2017, overseeing strategy, sales and customer engineering; before UMC he spent 18 years at Trident Microsystems. Stan Hung, who joined in 1991 and was once chief financial officer, is chairman and chief strategic officer. Ming Hsu, who joined in 2003, is president and chief operating officer. Chitung Liu, a managing director of UBS before he joined in 2001, is chief financial officer, and TS Wu, who joined in 1990, runs the fabs worldwide as a senior vice president. 123456

The chief executive and the president sit on the board as representatives of two of UMC's own shareholders, Silicon Integrated Systems and Hsun Chieh Investment, which hold 2.12% and 3.51% of its shares; UMC in turn owns 17.99% of Silicon Integrated Systems and 36.49% of Hsun Chieh. Six independent directors sit beside them, among them Lih J. Chen, the lead independent director and a former president of National Tsing Hua University, and Jyuo-Min Shyu, a former minister of science and technology and president of the Industrial Technology Research Institute. The insider record this site holds begins only in 2026: ten of the eleven people on it first filed on the same day in March, so it shows nothing yet of their tenure. 1478910111213

At the end of 2025 UMC counted 19,097 employees: 12,337 engineers, 5,924 technicians and 836 administrative staff, most of them working in Taiwan. Of these, 1,591 were research and development professionals. No employees are covered by collective bargaining agreements. Employees share in the profits under the articles of incorporation; for 2025 the board proposed a cash bonus of NT$3,438.3 million, in New Taiwan dollars. 14151617

Sources (17)
Officerssales are open-market, Sep 30, 2025 to Sep 30, 2026
NameTitle as filedFirst filingLatest filingSales, 12 months
Lin Jen-TsungVice PresidentMay 2026Sep 22, 20261 · $1.6M
Yen Hung-YuCHRO & VPSep 2026Sep 18, 2026none
Liu ChitungCFO & SVPMar 2026Sep 17, 20263 · $523M
Hu Che-JenVice PresidentMay 2026Jun 30, 20261 · $1.7M
Chen Ming-TsungVice PresidentMay 2026May 7, 2026none
Cheng Tzyy-MingVice PresidentMay 2026May 7, 2026none
Chuang Yu-ChihVice PresidentMay 2026May 7, 2026none
Hsu Shih-ChiehVice PresidentMay 2026May 7, 2026none
Hsu Shu-FenVice PresidentMay 2026May 7, 2026none
Kuo Lin-WuVice PresidentMay 2026May 7, 2026none
Lin Ming-YuVice PresidentMay 2026May 7, 2026none
Liu Shih-WeiVice PresidentMay 2026May 7, 2026none
Lu Chia-AoVice PresidentMay 2026May 7, 2026none
Shen Ying-ShengVice PresidentMay 2026May 7, 2026none
Tan Wen YiVice PresidentMay 2026May 7, 2026none
Tzou Shih-FangVice PresidentMay 2026May 7, 2026none
Chang OliverSVPMay 2026May 7, 2026none
Chen Jin-ShuangCHRO & VPMay 2026May 7, 2026none
Hung Kuei-ChunSVPMay 2026May 7, 2026none
Liao Ching YuGeneral Counsel & VPMay 2026May 7, 2026none
Wu Chung-HsienCISO & SVPMay 2026May 7, 2026none
Wang Jason ShiChief Executive OfficerMar 2026Mar 18, 2026none
Hung Chia-TsungChairman & CSOMar 2026Mar 18, 2026none
Hsu Ming-ChihPresident & COOMar 2026Mar 18, 2026none
Directorssales are open-market, Sep 30, 2025 to Sep 30, 2026
NameRoleFirst filingLatest filingSales, 12 months
Chen Lih-JuanndirectorMar 2026Mar 18, 2026none
Hsu Wen HsindirectorMar 2026Mar 18, 2026none
Shiu Kuang-SidirectorMar 2026Mar 18, 2026none
Shyu Jyuo-MindirectorMar 2026Mar 18, 2026none
Wang Su-LindirectorMar 2026Mar 18, 2026none
Wu Ling-LingdirectorMar 2026Mar 18, 2026none

A person is listed as reporting now after a filing in the last fifteen months. The record shows when someone last filed; it does not say why they stopped. Each name links to the filings on sec.gov.

SI Assistanton UMC · research, not advice