Russell T. Ray, 10% Owner at TANDEM DIABETES CARE INC (TNDM), bought 200,000 shares at $15.00 ($3.0M) on 2013-11-13, disclosed to the SEC on 2013-11-14.
Open-market purchase of $3.0M TNDM 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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