United Microelectronics Corporation (UMC)
NYSE: UMC · Real-Time Price · USD
25.58
-2.15 (-7.75%)
At close: Jun 26, 2026, 4:00 PM EDT
25.34
-0.24 (-0.94%)
After-hours: Jun 26, 2026, 7:59 PM EDT

Company Description

United Microelectronics Corporation operates as a semiconductor wafer foundry in Taiwan, China, Hong Kong, Japan, Korea, the United States, Europe, and internationally.

It manufactures and sells integrated circuits. The company offers circuit design; mask tooling; wafer fabrication; and assembly and testing services for communication devices, consumer electronics, computer, and other applications.

It also provides venture capital and marketing support; consulting and planning; energy technical; solar engineering integrated design; research and development services; and insurance services.

United Microelectronics Corporation was incorporated in 1980 and is headquartered in Hsinchu City, Taiwan.

United Microelectronics Corporation
United Microelectronics logo
Country Taiwan
Founded 1980
IPO Date Sep 19, 2000
Industry Semiconductors
Sector Technology
Employees 19,097
CEO Jason S. Wang

Contact Details

Address:
Hsinchu Science Park, No. 3, Li-Hsin 2nd Road
Hsinchu City
Taiwan
Phone 886 3 578 2258
Website umc.com

Stock Details

Ticker Symbol UMC
Exchange NYSE
Fiscal Year January - December
Reporting Currency TWD
CIK Code 0001033767
CUSIP Number 910873405
ISIN Number US9108734057
SIC Code 3674

Key Executives

Name Position
Jason S. Wang Chief Executive Officer and Representative Director
Shan-Chieh Chien Chairman of Unimicron Technology
Ming Hsu President, Chief Operating Officer and Representative Director
Chi-Tung Liu Chief Financial Officer, Senior Vice President, Head of Corporate Governance and Company Secretary

Latest SEC Filings

Date Type Title
Jun 23, 2026 6-K Report of foreign issuer
Jun 22, 2026 6-K Report of foreign issuer
Jun 18, 2026 6-K Report of foreign issuer
Jun 16, 2026 6-K Report of foreign issuer
Jun 5, 2026 6-K Report of foreign issuer
Jun 3, 2026 6-K Report of foreign issuer
May 29, 2026 SD Form - SD
May 27, 2026 6-K Report of foreign issuer
May 22, 2026 6-K Report of foreign issuer
May 20, 2026 6-K Report of foreign issuer