Trade Summary

2 days ago, Liu Chitung, serving as CFO & SVP at UNITED MICROELECTRONICS CORP (UMC), sold 1,900,000 shares at $154.89 per share, for a total transaction value of $294,291,000.00. Following this transaction, Liu Chitung now holds 3,322,917 shares of UMC.

This sale represents a 36.38% decrease in Liu Chitung's stake in the company. This is considered a high-conviction trade given the significant change in ownership.

The trade was executed on Monday, July 13, 2026 and publicly disclosed via SEC Form 4 filing on Monday, July 13, 2026 at 6:04 AM ET, meaning the disclosure happened on the same day as the trade.

UNITED MICROELECTRONICS CORP operates in the TECHNOLOGY sector, specifically within the SEMICONDUCTORS industry. Insider selling activity in this sector can provide valuable signals about industry trends and company-specific developments.