Pioneer Pharma (Hong Kong) Co Ltd, 10% Owner at NovaBay Pharmaceuticals, Inc. (NBY), bought 5,000,000 shares at $1.14 ($5.7M) on 2013-12-02, disclosed to the SEC on 2013-12-04.
Open-market purchase of $5.7M NBY by 10% Owner. Below the thresholds we flag for high-conviction alerts (no C-suite role, rare reversal, cluster, or A-grade history).
Negative factors outweigh the positive ones.