| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
Across the last three months, United Microelectronics Corporation's insiders have reduced their positions by a net 1,610,000 shares worth roughly $230.4M. In the past 30 days, 0 insiders bought and 1 sold.
Not all activity pointed one way: 1 insider sold in the same window, though they still hold shares. Classified under Semiconductors (Technology sector), UMC's insider flows are most useful compared with peers in the same group.
| Role | Insider | Shares | Value | 30d |
|---|---|---|---|---|
| VP | 3.21M | $550.57M | - | |
| CFO | 2.64M | $382.76M | - | |
| VP | 1.17M | $191.06M | -10,000 |
Buys and sells only
| Date | Insider | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Sep 22, 2026 | Lin Jen-Tsung | Vice President | Sell | 10,000 | $163.00 | $1,630,000.00 | -0.8% | - | - | |
| Sep 17, 2026 | Liu Chitung | CFO &SVP | Sell | 1,600,000 | $143.00 | $228,799,600.00 | -37.7% | - | - | |
| Jul 13, 2026 | Liu Chitung | CFO &SVP | Sell | 1,900,000 | $154.89 | $294,291,000.00 | -36.4% | - | - | |
| Jun 30, 2026 | Hu Che-Jen | Vice President | Sell | 10,000 | $171.30 | $1,713,000.00 | -0.3% | - | - |