| $255M | ||
| $48M | ||
| $38M | ||
| $37M | ||
| $34M | ||
| $34M |
Buys | $0 | 0 | 0 |
Sells | $526,433,600 | 5 | 100 |
| LIN JEN-TSUNG | Vice President | 0 | $0 | 1 | $1.63M | $-1.63M |
| HU CHE-JEN | Vice President | 0 | $0 | 1 | $1.71M | $-1.71M |
| Liu Chitung | CFO & SVP | 0 | $0 | 3 | $523.09M | $-523.09M |
United Microelectronics Corporation (UMC) operates as a specialized semiconductor wafer foundry, extending its services globally with operations across Taiwan, Singapore, China, Hong Kong, Japan, the United States, and Europe. The company offers a comprehensive range of solutions, from initial circuit blueprinting and mask generation to wafer manufacturing, final assembly, and rigorous testing. UMC's customer base consists of both integrated device manufacturers and companies focused solely on chip design. This corporation, founded in 1980, has …
Over the last 12 months, insiders at United Microelectronics Corporation have bought $0 and sold $526.43M worth of United Microelectronics Corporation stock.
On average, over the past 5 years, insiders at United Microelectronics Corporation have bought $0 and sold $526.43M worth of stock each year.
There was no buying activity among insiders over the last 12 months.
| 2026-09-22 | Sale | LIN JEN-TSUNG | Vice President | 10,000 0.0027% | $163.00 | $1.63M | -15.04% | |
| 2026-09-17 | Sale | Liu Chitung | CFO & SVP | 400,000 0.095% | $145.00 | $58M | -7.85% | |
| 2026-09-16 | Sale | Liu Chitung | CFO & SVP | 1.2M 0.3039% | $142.33 | $170.8M | +0.69% | |
| 2026-07-13 | Sale | Liu Chitung | CFO & SVP | 1.9M 0.4847% | $154.89 | $294.29M | -14.64% | |
| 2026-06-30 | Sale | HU CHE-JEN | Vice President | 10,000 0.0026% | $171.30 | $1.71M | -22.91% |
| Increased Positions | 182 | +88.35% | 38M | +28.69% |
| Decreased Positions | 85 | -41.26% | 20M | -14.73% |
| New Positions | 60 | New | 6M | New |
| Sold Out Positions | 26 | Sold Out | 1M | Sold Out |
| Total Postitions | 303 | +47.09% | 151M | +13.96% |