Mark L. Noetzel, Director at ASPEN AEROGELS INC (ASPN), bought 4,000 shares at $5.65 ($23K) on 2023-08-22, disclosed to the SEC on 2023-08-22.
Open-market purchase of $23k ASPN 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 D.
Nothing distinguishes this filing.