Arnon Rosenthal, Chief Executive Officer at Alector, Inc. (ALEC), sold 163,728 shares at $2.12 ($347K) on 2026-03-02, disclosed to the SEC on 2026-03-03.
Seasonal sale ($347k) by Chief Executive Officer — this insider has traded ALEC in March in at least three consecutive prior years. Pattern-driven, low signal.
Negative factors outweigh the positive ones.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $2.12 | 81,864 | $174K | 50.0% |
| 2 | $2.12 | 81,864 | $174K | 50.0% |
| Total | $2.12 avg | 163,728 | $347K | 100% |
| Filing → |
| ALEC | SELL | 2025-12-03 | $234K | — | Filing → |
| ALEC | SELL | 2025-09-04 | $129K | — | Filing → |
| ALEC | SELL | 2025-06-04 | $140K | — | Filing → |