United Microelectronics Corp (UMC) — Insider Trading Activity

United Microelectronics Corp (UMC) has 7 insider transactions on record, including 0 open-market purchases and 5 sales by company executives and directors. The most recent transaction was filed on 2026-09-22 by Lin Jen-Tsung. The largest single transaction was a sale of $ 294.29M by Liu Chitung.