Chitung Liu, Chief Financial Officer and Senior Vice President of UNITED MICROELECTRONICS CORP (UMC), executed a significant sale of company shares on July 13, 2026. Liu sold 1,900,000 shares at an average price of $154.89 per share, a transaction valued at approximately $294.29 million.
This large sale by a key executive comes shortly after another insider, HU CHE-JEN, sold 10,000 shares on June 30, 2026. Insider sales can be driven by various factors, including portfolio diversification, tax obligations, or pre-arranged trading plans, and do not necessarily reflect a negative outlook on the company's future performance. UMC is a global semiconductor manufacturer.