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Buy ALEC
Alector Stock Insider Power
Based on the 100 latest insides trades, we have calculated the insider power to be negative at -12.93. In total, the insiders bought 2.67M and sold 549.86K ALEC 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
|
-12.93 |
| ● Buy | 2.67M shares |
| ● Sell | 549.86K shares |
|
76% Buy Activity
Negligible or No Correlation
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Historical Insider Trades
| Date | Type | Person | Role | Amount |
|---|---|---|---|---|
|
Jun 17, 2026 Buy |
Altmeyer Mark Director |
9 450 Value: $14.7K |
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|
Jun 17, 2026 Buy |
Altmeyer Mark Director |
28 700 Value: $44.8K |
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Jun 17, 2026 Buy |
Garofalo Elizabeth A. Director |
9 450 Value: $14.7K |
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Jun 17, 2026 Buy |
Scheller Richard H Director |
9 450 Value: $14.7K |
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|
Jun 17, 2026 Buy |
Yaffe Kristine Director |
9 450 Value: $14.7K |
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Jun 17, 2026 Buy |
Yaffe Kristine Director |
28 700 Value: $44.8K |
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|
Jun 17, 2026 Buy |
Scheller Richard H Director |
28 700 Value: $44.8K |
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Jun 17, 2026 Buy |
Hammond Paula Director |
28 700 Value: $44.8K |
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Jun 17, 2026 Buy |
Hammond Paula Director |
9 450 Value: $14.7K |
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|
Jun 17, 2026 Buy |
Garofalo Elizabeth A. Director |
28 700 Value: $44.8K |
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Jun 17, 2026 Buy |
Desouza Errol B Director |
28 700 Value: $44.8K |
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|
Jun 17, 2026 Buy |
Desouza Errol B Director |
9 450 Value: $14.7K |
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Jun 17, 2026 Buy |
Lavigne Louis J Jr Director |
28 700 Value: $44.8K |
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Jun 17, 2026 Buy |
Lavigne Louis J Jr Director |
9 450 Value: $14.7K |
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Jun 01, 2026 Buy |
Scheller Richard H Director |
10 833 Value: $22.4K |
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Apr 16, 2026 Sell |
Wong-sarad Grace Principal Accounting Officer |
1 820 Value: $5K |
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Mar 15, 2026 Buy |
Berkley Neil Lindsay CFO & Chief Business Officer |
54 600 Value: $99.9K |
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Mar 13, 2026 Buy |
Rosenthal Arnon Chief Executive Officer |
116 246 Value: $255.7K |
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Mar 10, 2026 Sell |
Wong-sarad Grace Principal Accounting Officer |
1 000 Value: $3K |
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Mar 03, 2026 Sell |
Wong-sarad Grace Principal Accounting Officer |
3 367 Value: $7K |
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|
Mar 02, 2026 Sell |
Rosenthal Arnon Chief Executive Officer |
81 864 Value: $173.8K |
||
|
Mar 02, 2026 Sell |
Wong-sarad Grace Principal Accounting Officer |
8 071 Value: $17.1K |
||
|
Mar 02, 2026 Sell |
Berkley Neil Lindsay CFO & Chief Business Officer |
29 649 Value: $63.0K |
||
|
Feb 26, 2026 Sell |
Wong-sarad Grace Principal Accounting Officer |
4 079 Value: $10.2K |
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|
Dec 05, 2025 Sell |
Wong-sarad Grace Principal Accounting Officer |
4 753 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
