Silicon Motion Technology Stock Insider Power
Based on the 15 latest insides trades, we have calculated the insider power to be negative at -100.00. In total, the insiders bought 0 and sold 1.5K SIMO shares in the last 15 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.
Insider Power
|
-100.00 |
| ● Buy | 0 shares |
| ● Sell | 1.5K shares |
|
93% Buy Activity
Strong Negative Correlation
|
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No Significant SignalsNo statistically significant buy or sell signals detected in recent insider data. |
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Historical Insider Trades
| Date | Type | Person | Role | Amount |
|---|---|---|---|---|
|
May 06, 2026 Sell |
Duann Shii Tyng Director |
1 500 Value: $367.5K |
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|
Mar 18, 2026 Buy |
Cheng Tao Vp Of Manufacturing Operations |
0 Value: $0 |
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|
Mar 18, 2026 Buy |
Lin Yueh-hua Vice President Of Finance |
0 Value: $0 |
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|
Mar 18, 2026 Buy |
Ju Shang-tzu SVP Of Platform And Strategy |
0 Value: $0 |
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|
Mar 18, 2026 Buy |
Tsai Po Hung CFO |
0 Value: $0 |
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Mar 18, 2026 Buy |
Tsai Po Hung CFO |
0 Value: $0 |
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|
Mar 18, 2026 Buy |
Lin Tsungtan Cain Director |
0 Value: $0 |
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Mar 18, 2026 Buy |
Kou Wallace Chiachang President And CEO |
0 Value: $0 |
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Mar 18, 2026 Buy |
Shieh Han-ping Director |
0 Value: $0 |
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|
Mar 18, 2026 Buy |
Chen Shiang Feng Director |
0 Value: $0 |
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Mar 18, 2026 Buy |
Lin Kuan-ming Director |
0 Value: $0 |
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Mar 18, 2026 Buy |
Liu Lien Chun Director |
0 Value: $0 |
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Mar 18, 2026 Buy |
Chung Tsung-ming Director |
0 Value: $0 |
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|
Mar 18, 2026 Buy |
Chow Pongchi James Director |
0 Value: $0 |
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|
Mar 18, 2026 Buy |
Duann Shii Tyng Director |
0 Value: $0 |
About Insider Power
Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.
It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.
While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.
* October 6th, 2025 - Tested on 5562 stocks
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