Manuel Aivado, See Remarks at AILERON THERAPEUTICS INC (ALRN), bought 1,000 shares at $5.61 ($6K) on 2018-06-06, disclosed to the SEC on 2018-06-08.
Open-market purchase of $6k ALRN by See Remarks. Below the thresholds we flag for high-conviction alerts (no C-suite role, rare reversal, cluster, or A-grade history).
Something here stands out, but not much.