Eugene Lieberstein, Director at SYMBOLLON CORP (SYMBA), bought 7,692 shares at $0.65 ($5K) on 2006-02-28, disclosed to the SEC on 2006-03-02.
Open-market purchase of $5k SYMBA by Director. Below the thresholds we flag for high-conviction alerts (no C-suite role, rare reversal, cluster, or A-grade history).
Nothing distinguishes this filing.