Virgil G. Rose, Director at BEACON POWER CORP (BCON), bought 25,000 shares at $0.82 ($21K) on 2009-05-19, disclosed to the SEC on 2009-05-20.
Open-market purchase of $20k BCON 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.