John Johnson, Director at CEMPRA, INC. (CEMP), bought 10,000 shares at $9.10 ($91K) on 2014-05-23, disclosed to the SEC on 2014-05-28.
Open-market purchase of $91k CEMP 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.
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