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Amprius Technologies Stock Insider Power
Based on the 100 latest insides trades, we have calculated the insider power to be negative at -92.84. In total, the insiders bought 11.83M and sold 6.35M AMPX shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.
Insider Power
|
-92.84 |
| ● Buy | 11.83M shares |
| ● Sell | 6.35M shares |
|
64% Buy Activity
Weak Negative Correlation
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Historical Insider Trades
| Date | Type | Person | Role | Amount |
|---|---|---|---|---|
|
Jan 21, 2026 Buy |
Stefan Constantin Ionel Chief Technology Officer |
41 563 Value: $25.8K |
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|
Jan 21, 2026 Buy |
Stefan Constantin Ionel Chief Technology Officer |
15 834 Value: $792 |
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|
Jan 21, 2026 Buy |
Stefan Constantin Ionel Chief Technology Officer |
15 834 Value: $792 |
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|
Jan 21, 2026 Buy |
Stefan Constantin Ionel Chief Technology Officer |
15 883 Value: $794 |
||
|
Jan 21, 2026 Buy |
Stefan Constantin Ionel Chief Technology Officer |
41 563 Value: $25.8K |
||
|
Jan 21, 2026 Sell |
Stefan Constantin Ionel Chief Technology Officer |
73 280 Value: $879.4K |
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|
Jan 21, 2026 Buy |
Stefan Constantin Ionel Chief Technology Officer |
15 883 Value: $794 |
||
|
Jan 20, 2026 Buy |
Sun Kang Director |
43 185 Value: $76.9K |
||
|
Jan 20, 2026 Buy |
Sun Kang Director |
43 185 Value: $76.9K |
||
|
Jan 20, 2026 Sell |
Sun Kang Director |
43 185 Value: $476.3K |
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Jan 16, 2026 Sell |
Sun Kang Director |
950 548 Value: $10.5M |
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|
Jan 16, 2026 Buy |
Sun Kang Director |
850 338 Value: $2.13M |
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|
Jan 16, 2026 Buy |
Sun Kang Director |
100 210 Value: $178.4K |
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Jan 16, 2026 Buy |
Sun Kang Director |
100 210 Value: $178.4K |
||
|
Jan 16, 2026 Buy |
Sun Kang Director |
850 338 Value: $2.13M |
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|
Jan 12, 2026 Buy |
Sun Kang Director |
180 802 Value: $112.1K |
||
|
Jan 12, 2026 Sell |
Sun Kang Director |
506 267 Value: $5.11M |
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Jan 12, 2026 Buy |
Sun Kang Director |
208 264 Value: $508.2K |
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|
Jan 12, 2026 Buy |
Sun Kang Director |
117 201 Value: $293.0K |
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|
Jan 12, 2026 Buy |
Sun Kang Director |
180 802 Value: $112.1K |
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|
Jan 12, 2026 Buy |
Sun Kang Director |
117 201 Value: $293.0K |
||
|
Jan 12, 2026 Buy |
Sun Kang Director |
208 264 Value: $508.2K |
||
|
Dec 19, 2025 Buy |
Stepien Thomas M Chief Executive Officer |
200 000 Value: $1.87M |
||
|
Dec 19, 2025 Buy |
Stepien Thomas M President |
200 000 Value: $1.87M |
||
|
Dec 11, 2025 Buy |
Stefan Constantin Ionel Chief Technology Officer |
125 000 Value: $6K |
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
