UMCUNITED MICROELECTRONICS CORP
- Market cap
- $47.37B
- as of 2026-10-23
- Latest close
- $18.89
- as of 2026-10-23
- Sector
- Technology
- as of 2026-10-24
- Industry
- Semiconductors
- as of 2026-10-24
Cluster
No cluster in the last 90 days under the default rule (14d · ≥2 insiders · all roles).
Form 4 historysince 2026-06-30
| Insider | Traded | Filed | Type | Shares | Price | Value | Owned after | 10b5-1 plan | Filing |
|---|---|---|---|---|---|---|---|---|---|
| Lin Jen-TsungVice President | Sep 22 | Sep 22 | S | 10,000 | $163.00 | Sale −$1,630,000 | 1,172,140 | No | Form 4 |
| Liu ChitungCFO & SVP | Sep 17 | Sep 17 | S | 400,000 | $145.00 | Sale −$58,000,000 | 2,639,757 | No | Form 4 |
| Liu ChitungCFO & SVP | Sep 16 | Sep 17 | S | 1,200,000 | $142.33 | Sale −$170,796,000 | 3,039,757 | No | Form 4 |
| Liu ChitungCFO & SVP | Sep 7 | Sep 8 | J | 1,000,000 | $0.00 | $0 | 4,322,917 | No | Form 4 |
| Liu ChitungCFO & SVP | Sep 7 | Sep 8 | J | 1,000,000 | $0.00 | $0 | 1,000,000 | No | Form 4 |
| Liu ChitungCFO & SVP | Jul 13 | Jul 13 | S | 1,900,000 | $154.89 | Sale −$294,291,000 | 3,322,917 | No | Form 4 |
| Hu Che-JenVice President | Jun 30 | Jun 30 | S | 10,000 | $171.30 | Sale −$1,713,000 | 3,214,080 | No | Form 4 |