Insider Trading (Form 4)
NYSE
Form 4: UMC VP Hu Che-Jen Trades Shares
United Microelectronics Corp. VP Hu Che-Jen reported a transaction involving 10,000 common shares.
Schedule 13G - Passive Investments
NYSE
BlackRock, Inc. has filed a Schedule 13G, reporting beneficial ownership of 6.5% of United Microelectronics Corp.'s common stock as of March 31, 2026.