Will K. Weinstein, Director at HANSEN MEDICAL INC (HNSN), bought 869,825 shares at $1.23 ($1.1M) on 2013-07-30, disclosed to the SEC on 2013-08-01.
Open-market purchase of $1.1M HNSN 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.