David Spafford, Director at Great Basin Scientific, Inc. (GBSN), bought 6,665 shares at $1.47 ($10K) on 2015-08-21, disclosed to the SEC on 2015-08-24.
Open-market purchase of $10k GBSN 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.