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Buy UMC
United Microelectronics Stock Insider Power
Based on the 36 latest insides trades, we have calculated the insider power to be negative at -100.00. In total, the insiders bought 0 and sold 1.91M UMC shares in the last 36 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 | 1.91M shares |
|
94% Buy Activity
Moderate 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 |
|---|---|---|---|---|
|
Apr 29, 2026 Buy |
Chen Ming-tsung Vice President |
0 Value: $0 |
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|
Apr 29, 2026 Buy |
Chuang Yu-chih Vice President |
0 Value: $0 |
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Mar 18, 2026 Buy |
Wang Su-lin Director |
0 Value: $0 |
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Mar 18, 2026 Buy |
Liu Chitung CFO & SVP |
0 Value: $0 |
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|
Mar 18, 2026 Buy |
Chen Lih-juann Insider |
0 Value: $0 |
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Mar 18, 2026 Buy |
Shyu Jyuo-min Insider |
0 Value: $0 |
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Mar 18, 2026 Buy |
Shiu Kuang-si Insider |
0 Value: $0 |
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Mar 18, 2026 Buy |
Hsu Wen Hsin Insider |
0 Value: $0 |
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Mar 18, 2026 Buy |
Wu Ling-ling Insider |
0 Value: $0 |
||
|
Mar 18, 2026 Buy |
Liu Chitung CFO & SVP |
0 Value: $0 |
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|
Mar 18, 2026 Buy |
Liu Chitung CFO & SVP |
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
