2 insiders reported 2 Form 4 transactions for UNITED MICROELECTRONICS CORP (UMC) over the past 18 months (most recent 2026-07-13). Recent activity: Liu Chitung (CFO & SVP) Sell 1.9M shares, HU CHE-JEN (Vice President) Sell 10,000 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-13 | Liu Chitung | CFO & SVP | Sell | 1.9M | $294.3M |
| 2026-06-30 | HU CHE-JEN | Vice President | Sell | 10,000 | $1.7M |
Source: SEC Form 4 filings · as of 2026-07-13