1 Form 4 filings for UMC between 2026-07-13 and 2026-07-13, from 1 filer. 1 discretionary (1 sales, 0 purchases). None state a filing-level total — that aggregate began on 2026-08-17 — so each row below shows only its largest transaction.
| Filed | Filer | Role | Action | Shares largest txn | Price | Filing total | Txns |
|---|---|---|---|---|---|---|---|
| 2026-07-13 | Liu Chitung | sold | 1,900,000 | $154.89 | — | — | |
| 1 filings · 1 filers · disclosed totals only | $0 (0/1) | — | |||||