Herminder Singh Rai, CFO at SHARPROCK RESOURCES INC. (SHRK), bought 10,000 shares at $0.50 ($5K) on 2012-04-20, disclosed to the SEC on 2012-04-25.
Open-market purchase of $5k SHRK by CFO. Below the thresholds we flag for high-conviction alerts (no C-suite role, rare reversal, cluster, or A-grade history).
Nothing distinguishes this filing.