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Buy AMBA
Ambarella Stock Insider Power
Based on the 100 latest insides trades, we have calculated the insider power to be negative at -70.47. In total, the insiders bought 526.49K and sold 274.29K AMBA 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
|
-70.47 |
| ● Buy | 526.49K shares |
| ● Sell | 274.29K shares |
|
44% Buy Activity
Negligible or No Correlation
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Historical Insider Trades
| Date | Type | Person | Role | Amount |
|---|---|---|---|---|
|
Mar 17, 2026 Buy |
Lee Chan W Chief Operations Officer |
13 678 Value: $720.7K |
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|
Mar 17, 2026 Sell |
Lee Chan W Chief Operations Officer |
6 729 Value: $355.1K |
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|
Mar 17, 2026 Buy |
Lee Chan W Chief Operations Officer |
13 678 Value: $720.7K |
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|
Mar 17, 2026 Buy |
Ju Chi-hong Senior Vp, Systems & Gm, Asia |
9 553 Value: $503.3K |
||
|
Mar 17, 2026 Sell |
Ju Chi-hong Senior Vp, Systems & Gm, Asia |
4 729 Value: $249.5K |
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|
Mar 02, 2026 Buy |
Bryant Gregory M Director |
2 457 Value: $150.0K |
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|
Mar 02, 2026 Buy |
Wang Feng-ming CEO |
50 000 Value: $2.07M |
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|
Mar 02, 2026 Buy |
Wang Feng-ming CEO |
53 203 Value: $3.25M |
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|
Mar 02, 2026 Sell |
Wang Feng-ming CEO |
12 040 Value: $739.5K |
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Mar 02, 2026 Sell |
Wang Feng-ming CEO |
32 460 Value: $1.98M |
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|
Mar 02, 2026 Sell |
Wang Feng-ming CEO |
2 600 Value: $154.8K |
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Mar 02, 2026 Sell |
Wang Feng-ming CEO |
1 900 Value: $111.7K |
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Mar 02, 2026 Sell |
Wang Feng-ming CEO |
1 000 Value: $56.8K |
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|
Mar 02, 2026 Buy |
Wang Feng-ming CEO |
50 000 Value: $2.07M |
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|
Mar 02, 2026 Buy |
Wang Feng-ming CEO |
53 203 Value: $3.25M |
||
|
Mar 02, 2026 Buy |
Ju Chi-hong Senior Vp, Systems & Gm, Asia |
17 329 Value: $1.06M |
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Mar 02, 2026 Buy |
Ju Chi-hong Senior Vp, Systems & Gm, Asia |
17 329 Value: $1.06M |
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|
Mar 02, 2026 Buy |
Lee Chan W Chief Operations Officer |
24 701 Value: $1.51M |
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Mar 02, 2026 Buy |
Lee Chan W Chief Operations Officer |
24 701 Value: $1.51M |
||
|
Mar 02, 2026 Buy |
Chen Yun-lung Vp, Business Development And M |
7 220 Value: $440.7K |
||
|
Mar 02, 2026 Buy |
Young John Alexander CFO |
15 201 Value: $927.9K |
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|
Mar 02, 2026 Buy |
Young John Alexander CFO |
15 201 Value: $927.9K |
||
|
Mar 02, 2026 Buy |
Chen Yun-lung Vp, Business Development And M |
7 220 Value: $440.7K |
||
|
Feb 23, 2026 Buy |
Bryant Gregory M |
0 Value: $0 |
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|
Jan 05, 2026 Sell |
Ju Chi-hong Senior Vp, Systems & Gm, Asia |
7 728 Value: $584.1K |
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
