Che-jen Hu, Vice President, on June 30, 2026, sold 10,000 shares in United Microelectronics (UMC) for $1,713,000. Following the Form 4 filing with the SEC, Hu has control over a total of 3,214,080 common shares of the company, with 3,214,080 shares held directly.
SEC Filing:
https://www.sec.gov/Archives/edgar/data/1033767/000119312526291233/xslF345X05/ownership.xml