Kevin C. Tang, 10% Owner at PENWEST PHARMACEUTICALS CO (PPCO), bought 665,000 shares at $1.65 ($1.1M) on 2009-02-17, disclosed to the SEC on 2009-02-19.
Open-market purchase of $1.1M PPCO 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.
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