SEC Form 4Coverage since Jun 30, 2026
$UMC insider trading
Over the last 12 months, United Microelectronics insiders reported no purchases and 2 sales totaling $296.0M across SEC Form 4 filings.
- Bought · 12m
- — 0 events
- Sold · 12m
- $296.0M 2 events
- Events · 12m
- 2 Form 4 filings, grouped
- Insiders · 12m
- 2 distinct reporters
- 10b5-1 share
- 0% pre-arranged plans
Side
Price · $UMC · 12Mvia TradingView
Top insiders · 12m
HU CHE-JENVice President1× · $1.7M
Liu ChitungCFO & SVP1× · $294.3M
All insider trades
2 events
| Date | Insider | Type | Shares | Avg price | Value | Δ stake | Marks |
|---|---|---|---|---|---|---|---|
| Jul 13, 2026 | Liu ChitungCFO & SVP · O | ▼ Sale | 1,900,000 | $154.89 | $294.3M | -36.4% | — |
| Jun 30, 2026 | HU CHE-JENVice President · O | ▼ Sale | 10,000 | $171.3 | $1.7M | -0.3% | — |
About Form 4
Corporate insiders — officers, directors and 10%+ owners — must report their trades to the SEC on Form 4 within two business days. We group each filing's transactions into one economic event (a laddered 10b5-1 sale is one event, not 25 rows), flag pre-arranged plans and late filings, and link every event to its AI-scored article in the $UMC feed.