Robert W. Karr, Director at IDERA PHARMACEUTICALS, INC. (IDRA), bought 5,750 shares at $1.76 ($10K) on 2013-09-16, disclosed to the SEC on 2013-09-18.
Open-market purchase of $10k IDRA by Director. Below the thresholds we flag for high-conviction alerts (no C-suite role, rare reversal, cluster, or A-grade history).
Something here stands out, but not much.