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United Microelectronics Corporation(UMC)
NYSE
$18.89
0.36 (1.94%)

United Microelectronics Corporation(UMC)Company Profile & Business
NYSE

Company Profile

Business overview, scale, and footprint

Company NameUnited Microelectronics Corporation
Ticker SymbolUMC
ExchangeNYQ
SectorTechnology
IndustrySemiconductors
Employees20,000
CEOMr. Jason S. Wang
Founded1980
HeadquartersHsinchu City, Taiwan
CountryTaiwan
Websiteumc.com
Next Earnings DateOct 28, 2026

Business Overview

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.

Insider Transactions

Open-market activity and option exercises

Insider Activity Summary

Insider trading activity for United Microelectronics Corporation (UMC) between Sep 16, 2026 and Sep 22, 2026 consists of 3 total transactions. Among these, company executives and board members conducted 0 buys (totaling 0 shares) and 3 sells (totaling 1,610,000 shares). This activity resulted in a net change of -1,610,000 shares, reflecting net selling pressure with an estimated net sales value of $230.43M.

3 insider transactions found. Showing 3 of 3 transactions.

Show:entries
Insider NameRelation to CompanyShares ChangedPriceTransaction Date
LIN JEN-TSUNGVice President-10,000$163.00Sep 22, 2026
Liu ChitungCFO & SVP-400,000$145.00Sep 17, 2026
Liu ChitungCFO & SVP-1,200,000$142.33Sep 16, 2026

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