sec filings
Insider trades
Open-market buys and sales that company insiders report to the SEC on .
Side
Planned sales
Role
UMC
Updated 10/6/2026, 12:42 PM ET.
| Stock | Side | Value | Insider | Shares | Avg price | Filed | Tags | Filing |
|---|---|---|---|---|---|---|---|---|
| UMC UNITED MICROELECTRONICS CORP | Sale | $1,630,000 | LIN JEN-TSUNG Vice President | 10,000 sh | at $163.00 | Filed Sep 22, 6:11 AM ET | Filing | |
| UMC UNITED MICROELECTRONICS CORP | Sale | $228,799,600 | Liu Chitung CFO & SVP | 1,600,000 sh | at $143.00 | Filed Sep 17, 6:07 AM ET | Filing | |
| UMC UNITED MICROELECTRONICS CORP | Sale | $294,291,000 | Liu Chitung CFO & SVP | 1,900,000 sh | at $154.89 | Filed Jul 13, 6:04 AM ET | Filing |