🕵️ Silicon Motion Technology Corp ($SIMO)
SEC insider & ownership activity, last 12 months · CIK 1329394 · every row links its SEC filing
Over the last 12 months insiders sold $1.9M with no open-market buying against it. Lin Kuan-Ming sold $930K in discretionary trades (Jun). No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 3 sellers, $1.9M (6 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Lin Kuan-Ming | 0 | – | 3 | $930K | Jun 18, 2026 |
| Shieh Han-Ping | 0 | – | 2 | $629K | Jun 18, 2026 |
| Duann Shii Tyng | 0 | – | 1 | $368K | May 6, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| FMR LLC | 10.0% | 13G | Dec 5, 2025 | filing ↗ | |
| Abigail P. Johnson | 10.0% | 13G | Dec 5, 2025 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Lin Kuan-Ming | $3.2M | Jun 5, 2026 | filing ↗ |
| Shieh Han-Ping | $552K | May 28, 2026 | filing ↗ |
| Robert C. Fan | $136K | May 27, 2026 | filing ↗ |
| Robert C. Fan | $226K | May 18, 2026 | filing ↗ |
| Duann Shii Tyng | $328K | May 4, 2026 | filing ↗ |
| Fan Robert | $271K | Feb 24, 2026 | filing ↗ |
| Fan Robert | $271K | Dec 9, 2025 | filing ↗ |
| Duann Shii Tyng | $95K | Nov 11, 2025 | filing ↗ |
| Lin Kuan-Ming | $1.1M | Sep 17, 2025 | filing ↗ |
| Shieh Han-Ping | $509K | Sep 3, 2025 | filing ↗ |
| Shieh Han-Ping | $458K | Aug 12, 2025 | filing ↗ |
Material events (8-K)
No 8-K filings in the last 12 months.