Che-Jen Hu, Vice President at United Microelectronics, sold UMC on Jun 30, 2026
Data as of Oct 16
- Traded
- Jun 30, 2026
- Disclosed
- Jun 30, 2026
- Filed
- The same day
Form 4s are due within two business days.
Official filing (SEC Form 4) ↗
The price around the disclosure
UMC since disclosure
−27.2%
after the sale
Similar stocks (XLK) since disclosure
−3.7%
XLK — its sector index fund
Change in closing price from Jun 30, 2026 (the first trading day on or after disclosure) to Oct 16, 2026. Dividends excluded. Not a return anyone earned.
Our take
None of our tested rules fired on this trade.