This is a routine insider sale of equity compensation shares, unlikely to impact SIMO's stock price. Monitor for any larger insider selling clusters or changes in insider sentiment, but no immediate action warranted.
Price Chart
Executive Summary
Insider Duann Shii Tyng filed Form 144 to sell 1,500 ADS of Silicon Motion Technology, with an estimated value of $328,500, on May 4, 2026. The shares were acquired via restricted stock award in February 2024, indicating a routine equity compensation sale. The sale is negligible relative to the company's $7.4B market cap and 33.4M ADS outstanding.
Key Facts
- Insider Duann Shii Tyng intends to sell 1,500 ADS of SIMO.
- Estimated value of sale: $328,500.
- Sale planned for May 4, 2026.
- Shares originated from a restricted stock award on February 16, 2024.
- Total ADS outstanding: 33,410,000.
- Insider is an affiliate of the company.
Financial Impact
Small – $328,500 sale represents 0.0045% of shares outstanding and 0.0044% of market cap ($7.4B).
Risk Factors
- Although small, the sale could be part of a broader insider selling pattern; check for recent Form 4 filings.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 3 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 144 Filing (Primary) | 0001993728-26-000001 |
| Document: 0001993728-26-000001-index.html | 0001993728-26-000001 |
| Document: 0001993728-26-000001.txt | 0001993728-26-000001 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Aug 11, 2026 7w ago | 6-K | $224.00 $277.70 | ▲ +23.97% | ▲ +25.03% | $282.96 (+26.32%) |
Aug 10, 2026 7w ago | 6-K | $230.61 $272.02 | ▲ +17.96% | ▲ +18.87% | $282.96 (+22.70%) |
Jul 29, 2026 9w ago | Press Release | $255.10 $255.08 | ▼ −0.01% | ▼ −3.97% | $282.96 (+10.92%) |
Jul 24, 2026 9w ago | 6-K | $244.45 $243.18 | ▼ −0.52% | ▼ −3.82% | $282.96 (+15.75%) |
Jul 8, 2026 12w ago | 6-K | $324.26 $267.43 | ▼ −17.53% | ▼ −19.77% | $282.96 (−12.74%) |
May 1, 2026 22w ago | 144 | $234.04 $268.05 | ▲ +14.53% | ▲ +9.25% | $282.96 (+20.90%) |
Apr 28, 2026 22w ago | Press Release | $217.06 $284.98 | ▲ +31.29% | ▲ +25.83% | $282.96 (+30.36%) |
Apr 24, 2026 22w ago | 6-K | $147.24 $290.32 | ▲ +97.18% | ▲ +92.22% | $282.96 (+92.18%) |
Apr 24, 2026 23w ago | Press Release | $153.15 $263.51 | ▲ +72.06% | ▲ +68.04% | $282.96 (+84.76%) |
Apr 10, 2026 24w ago | 6-K | $125.74 $262.05 | ▲ +108.40% | ▲ +100.67% | $282.96 (+125.03%) |
US Market Status
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