Karen Firestone, Director at Amylyx Pharmaceuticals, Inc. (AMLX), bought 3,800 shares at $13.51 ($51K) on 2026-05-21, disclosed to the SEC on 2026-05-26.
Open-market purchase of $51k AMLX by Director. Below the thresholds we flag for high-conviction alerts (no C-suite role, rare reversal, cluster, or A-grade history). Context: insider career grade C.
Something here stands out, but not much.
| Filing → |
| AMLX | BUY | 2023-12-19 | $60K | — | Filing → |
| AMLX | BUY | 2023-03-20 | $32K | — | Filing → |