InsiderTrades

Liu Chitung

SEC CIK 2120081 · EDGAR

Buying vs selling by month open-market trades, last 24 months, UMC
BoughtSold

Companies

TickerCompanyTitleHoldingBoughtSoldTradesFirstLast
UMCUNITED MICROELECTRONICS CORPCFO, SVP 2.64M — $523.09M 42026-07-132026-09-16

Most active insiders at UMC, 12 months

#InsiderTitleBoughtSold
1 Liu ChitungCFO, SVP —$523.09M
2 HU CHE-JENVP —$1.71M
3 LIN JEN-TSUNGVP —$1.63M

Transactions 4

Purchase Sale Sale after option exercise All abbreviations

Type
Reset
X Filed Traded Ticker Company Insider Title Type Price Qty Owned ΔOwn Value
M 2026-09-17 06:07 2026-09-16+ UMC UNITED MICROELECTRONICS CORP Liu Chitung CFO, SVP S - Sale $143.00 -1.60M 2.64M -38% -$228.80M
2026-09-08 06:01 2026-09-07 UMC UNITED MICROELECTRONICS CORP Liu Chitung CFO, SVP J - Other $0.00 +1.00M 4.32M +30% $0
I 2026-09-08 06:01 2026-09-07 UMC UNITED MICROELECTRONICS CORP Liu Chitung CFO, SVP J - Other $0.00 -1.00M 1.00M -50% $0
2026-07-13 06:04 2026-07-13 UMC UNITED MICROELECTRONICS CORP Liu Chitung CFO, SVP S - Sale $154.89 -1.90M 3.32M -36% -$294.29M