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Buy INSM
Insmed Stock Insider Power
Based on the 100 latest insides trades, we have calculated the insider power to be negative at -95.02. In total, the insiders bought 463.08K and sold 356.62K INSM 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
|
-95.02 |
| ● Buy | 463.08K shares |
| ● Sell | 356.62K shares |
|
50% Buy Activity
Moderate Negative Correlation
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Historical Insider Trades
| Date | Type | Person | Role | Amount |
|---|---|---|---|---|
|
Mar 03, 2026 Sell |
Sharoky Melvin Md Director |
100 Value: $0 |
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|
Feb 25, 2026 Buy |
Sharoky Melvin Md Director |
243 Value: $36.1K |
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Feb 25, 2026 Buy |
Sharoky Melvin Md Director |
243 Value: $36.1K |
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Feb 25, 2026 Buy |
Sharoky Melvin Md Director |
243 Value: $36.1K |
||
|
Feb 25, 2026 Buy |
Sharoky Melvin Md Director |
243 Value: $36.1K |
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|
Feb 25, 2026 Sell |
Sharoky Melvin Md Director |
1 072 Value: $0 |
||
|
Feb 24, 2026 Buy |
Smith Michael Alexander Chief Legal Officer |
20 248 Value: $345.6K |
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|
Feb 24, 2026 Sell |
Smith Michael Alexander Chief Legal Officer |
15 771 Value: $2.47M |
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|
Feb 24, 2026 Sell |
Smith Michael Alexander Chief Legal Officer |
4 151 Value: $643.7K |
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|
Feb 24, 2026 Sell |
Smith Michael Alexander Chief Legal Officer |
4 852 Value: $746.9K |
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Feb 24, 2026 Buy |
Smith Michael Alexander Chief Legal Officer |
20 248 Value: $345.6K |
||
|
Feb 23, 2026 Sell |
Brennan David R Director |
6 000 Value: $0 |
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|
Feb 19, 2026 Sell |
Lewis William Chair And CEO |
1 030 Value: $158.0K |
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|
Feb 19, 2026 Buy |
Lewis William Chair And CEO |
4 440 Value: $76.2K |
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Feb 19, 2026 Sell |
Lewis William Chair And CEO |
1 988 Value: $296.5K |
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Feb 19, 2026 Sell |
Lewis William Chair And CEO |
1 891 Value: $283.8K |
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|
Feb 19, 2026 Buy |
Lewis William Chair And CEO |
6 259 Value: $190.6K |
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Feb 19, 2026 Sell |
Lewis William Chair And CEO |
3 413 Value: $515.8K |
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Feb 19, 2026 Buy |
Lewis William Chair And CEO |
4 440 Value: $76.2K |
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Feb 19, 2026 Buy |
Lewis William Chair And CEO |
6 259 Value: $190.6K |
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Feb 19, 2026 Sell |
Lewis William Chair And CEO |
2 377 Value: $361.1K |
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|
Feb 09, 2026 Buy |
Lewis William Chair And CEO |
4 440 Value: $76.2K |
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|
Feb 09, 2026 Sell |
Lewis William Chair And CEO |
4 888 Value: $719.4K |
||
|
Feb 09, 2026 Buy |
Lewis William Chair And CEO |
6 259 Value: $190.6K |
||
|
Feb 09, 2026 Sell |
Mcgirr David W J Director |
53 400 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
