Lap Wai Chan, Director at Eco-Stim Energy Solutions, Inc. (ESES), bought 173,911 shares at $5.75 ($1000K) on 2015-02-19, disclosed to the SEC on 2015-04-13.
Open-market purchase of $1000k ESES 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.