Over the last 12 months, Silicon Motion Technology insiders reported no purchases and 2 sales totaling $1.6M across SEC Form 4 filings.
| Date | Insider | Type | Shares | Avg price | Value | Δ stake | Marks |
|---|---|---|---|---|---|---|---|
| Jun 18, 2026 | SHIEH HAN-PINGD | ▼ Sale | 2,000 | $314.62 | $629K | -23.1% | late · 2 tranches |
| Jun 18, 2026 | LIN KUAN-MINGD | ▼ Sale | 3,000 | $310.11 | $930K | -28.6% | late · 3 tranches |
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 $SIMO feed.