Silicon Motion Technology (SIMO) stock: insider trades, news & valuation
Heavy sellingShare price and insider trades
Silicon Motion Technology insider trading at a glance (Oct 9, 2026): in the past 12 months, 0 insiders bought $0 and 3 sold $1.9M of SIMO stock on the open market.
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SIMO insider buying and selling by quarter
Open-market purchases (green, above the line) and sales (red, below), by trade date.
| Quarter | Bought | Purchases | Sold | Sales |
|---|---|---|---|---|
| Q4 2026 | — | 0 | — | 0 |
| Q3 2026 | — | 0 | — | 0 |
| Q2 2026 | — | 0 | $1.9M | 6 |
Valuation, profit and volume
Summary
Over the past 12 months, 0 Silicon Motion Technology CORP insiders reported open-market purchases totaling $0, while 3 insiders reported sales totaling $1.9M. 0 of 6 recorded sales were made under pre-scheduled Rule 10b5-1 trading plans, which are usually less informative than discretionary sales.
Insider transactions
Open-market purchases and sales.
| Filed | Insider | Type | Shares | Price | Value | Since | Score |
|---|---|---|---|---|---|---|---|
| Jun 24SEC | Han-ping ShiehDirector | Sell | 1,0006,656 held (−13%) | $328.00 | $328K | -19.5% | — |
| Jun 24SEC | Kuan-ming LinDirector | Sell | 1,0007,500 held (−12%) | $320.31 | $320K | -17.6% | — |
| Jun 24SEC | Kuan-ming LinDirector | Sell | 1,0008,500 held (−11%) | $310.01 | $310K | -14.9% | — |
| Jun 24SEC | Han-ping ShiehDirector | Sell | 1,0007,656 held (−12%) | $301.25 | $301K | -12.4% | — |
| Jun 24SEC | Kuan-ming LinDirector | Sell | 1,0009,500 held (−10%) | $300.00 | $300K | -12.0% | — |
| May 7SEC | Shii Tyng DuannDirector | Sell | 1,50015,200 held (−9%) | $245.00 | $368K | +7.7% | — |
Insiders at Silicon Motion Technology CORP
| Insider | Bought | Sold | Last filing | Score |
|---|---|---|---|---|
| Kuan-ming LinDirector | — | $930K | Jun 24, 2026 | — |
| Han-ping ShiehDirector | — | $629K | Jun 24, 2026 | — |
| Shii Tyng DuannDirector | — | $368K | May 7, 2026 | — |
SIMO stock: common questions
Are Silicon Motion Technology CORP insiders buying SIMO stock?
In the past 12 months, 0 insiders reported open-market purchases of SIMO worth $0.
Are Silicon Motion Technology CORP insiders selling SIMO stock?
3 insiders reported sales worth $1.9M over the same period.
Where does this data come from?
Every transaction comes from Form 4 filings that insiders must submit to the SEC within two business days of a trade. We pull them from SEC EDGAR every night.
What is SIMO's 52-week range?
Over the past year SIMO has traded between $79.53 and $336.22. It last closed at $263.90 on Oct 9, 2026.