TANG Capital Management LLC, 10% Owner at Ardea Biosciences, Inc./DE (RDEA), bought 426,470 shares at $17.00 ($7.2M) on 2012-02-01, disclosed to the SEC on 2012-02-03.
Open-market purchase of $7.2M RDEA 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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