🕵️ United Microelectronics Corp ($UMC)
SEC insider & ownership activity, last 12 months · CIK 1033767 · every row links its SEC filing
Insider sell value was withheld pending verification over the last 12 months. No red-flag 8-Ks in the window.
Insider flow
0 buyers, $0 (0 lots) · 2 sellers, value withheld pending verification (2 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Liu Chitung | 0 | – | 1 | $294.3M | Jul 13, 2026 |
| Hu Che-Jen | 0 | – | 1 | value withheld pending verification | Jun 30, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| BlackRock, Inc. | 6.5% | 13G | Apr 29, 2026 | filing ↗ |
Planned insider sales (Form 144)
No sale notices filed in the last 12 months.
Material events (8-K)
No 8-K filings in the last 12 months.