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Buy ALNY
Alnylam Pharmaceuticals Stock Insider Power
Based on the 100 latest insides trades, we have calculated the insider power to be negative at -64.22. In total, the insiders bought 59.77K and sold 20.65K ALNY 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
|
-64.22 |
| ● Buy | 59.77K shares |
| ● Sell | 20.65K shares |
|
24% Buy Activity
Weak Negative Correlation
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Historical Insider Trades
| Date | Type | Person | Role | Amount |
|---|---|---|---|---|
|
May 20, 2026 Buy |
Arbuckle Stuart A Director |
1 441 Value: $430.1K |
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|
May 20, 2026 Buy |
Ausiello Dennis A Director |
1 441 Value: $430.1K |
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May 20, 2026 Buy |
Ausiello Dennis A Director |
671 Value: $200.3K |
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May 20, 2026 Buy |
Brandicourt Olivier Director |
1 441 Value: $430.1K |
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|
May 20, 2026 Buy |
Hamburg Margaret A Director |
1 441 Value: $430.1K |
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|
May 20, 2026 Buy |
Hamburg Margaret A Director |
671 Value: $200.3K |
||
|
May 20, 2026 Buy |
Kellogg Peter N Director |
1 441 Value: $430.1K |
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|
May 20, 2026 Buy |
Kellogg Peter N Director |
671 Value: $200.3K |
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May 20, 2026 Buy |
Pyott David E I Director |
671 Value: $200.3K |
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|
May 20, 2026 Buy |
Reitan Colleen F Director |
1 441 Value: $430.1K |
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May 20, 2026 Buy |
Reitan Colleen F Director |
671 Value: $200.3K |
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|
May 20, 2026 Buy |
Schulman Amy W Director |
838 Value: $250.1K |
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May 20, 2026 Buy |
Sigal Charles Elliott Director |
1 441 Value: $430.1K |
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|
May 20, 2026 Buy |
Sigal Charles Elliott Director |
671 Value: $200.3K |
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|
May 20, 2026 Buy |
Arbuckle Stuart A Director |
671 Value: $200.3K |
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May 20, 2026 Buy |
Brandicourt Olivier Director |
671 Value: $200.3K |
||
|
May 20, 2026 Buy |
Pyott David E I Director |
1 441 Value: $430.1K |
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May 20, 2026 Buy |
Schulman Amy W Director |
1 802 Value: $537.9K |
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|
May 13, 2026 Buy |
Schulman Amy W Director |
11 250 Value: $789.8K |
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May 13, 2026 Buy |
Schulman Amy W Director |
11 250 Value: $789.8K |
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Apr 06, 2026 Sell |
Mclaughlin Melissa Chief Human Resources Officer |
199 Value: $66.5K |
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Apr 06, 2026 Sell |
Mclaughlin Melissa Chief Human Resources Officer |
293 Value: $97.2K |
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Apr 06, 2026 Sell |
Mclaughlin Melissa Chief Human Resources Officer |
909 Value: $299.8K |
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|
Apr 06, 2026 Sell |
Mclaughlin Melissa Chief Human Resources Officer |
56 Value: $17.9K |
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|
Apr 06, 2026 Sell |
Mclaughlin Melissa Chief Human Resources Officer |
829 Value: $274.0K |
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
