Jen-tsung Lin, Vice President at UNITED MICROELECTRONICS CORP (UMC), sold 10,000 shares at $163.00 ($1.6M) on 2026-09-22, disclosed to the SEC on 2026-09-22.
Open-market sale of $1.6M UMC by Vice President. Not flagged as scheduled, tax-driven, or recurring — but no specific bearish signal from our filters. Reasons for insider sales vary widely.
Something here stands out, but not much.