James Brian Windsor, President and COO at AILERON THERAPEUTICS INC (ALRN), bought 225 shares at $3.37 ($758) on 2023-12-15, disclosed to the SEC on 2023-12-18.
Open-market purchase of $758 ALRN by President and COO. Below the thresholds we flag for high-conviction alerts (no C-suite role, rare reversal, cluster, or A-grade history). Context: insider career grade B.
Clearly above the average filing.
| Filing → |
| ALRN | BUY | 2023-11-21 | $10K | — | Filing → |
| TFFP | SELL | 2020-12-09 | $395K | — | Filing → |
| TFFP | BUY | 2019-10-29 | $25K | — | Filing → |