ALEC insider trades & Congress trades
Alector, Inc.: public insider filings and Congress disclosures, in one place.
Bourse has recorded 5 open-market insider transactions in Alector, Inc. (ALEC) (0 purchases with code P and 5 sales with code S), the most recent on September 4, 2026.
In the last 90 days: 0 purchases by 0 insiders ($0) and 5 sales by 3 ($296K).
Insider transactions
SEC Form 4, open-market purchases (P) and sales (S) only. Awards, option exercises and tax withholding are excluded. “After” shows the stock’s return over the month following the trade, where available.
| Date | Insider | Role | Type | Shares | Price | Value | After 1M |
|---|---|---|---|---|---|---|---|
| Sep 4, 2026 | Wong-Sarad Grace | Principal Accounting Officer | Sell | 3,625 | $2.51 | $9K | – |
| Sep 3, 2026 | Wong-Sarad Grace | Principal Accounting Officer | Sell | 5,165 | $2.67 | $14K | −0.3% |
| Sep 3, 2026 | Berkley Neil Lindsay | CFO & Chief Business Officer | Sell | 29,251 | $2.66 | $78K | −0.3% |
| Sep 3, 2026 | Rosenthal Arnon | Chief Executive Officer | Sell | 72,606 | $2.66 | $193K | −0.3% |
| Sep 2, 2026 | Wong-Sarad Grace | Principal Accounting Officer | Sell | 656 | $2.75 | $2K | −0.3% |
Data as of November 8, 2026. Public filings only. A purchase or sale by a politician or an insider does not by itself imply any wrongdoing.
New to these filings? Read how to read a Form 4, how Congress trades are disclosed and what insider cluster buying means. Sources and limits are on the Methodology page.
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