Arnon Rosenthal, Chief Executive Officer at Alector, Inc. (ALEC), sold 51,562 shares at $2.50 ($129K) on 2025-09-02, disclosed to the SEC on 2025-09-04.
Open-market sale of $129k ALEC by Chief Executive Officer. Not flagged as scheduled, tax-driven, or recurring — but no specific bearish signal from our filters. Reasons for insider sales vary widely.
Nothing distinguishes this filing.
| Filing → |
| ALEC | SELL | 2026-03-03 | $347K | — | Filing → |
| ALEC | SELL | 2025-12-03 | $234K | — | Filing → |
| ALEC | SELL | 2025-06-04 | $140K | — | Filing → |