Herbert Kohler, Director at TESLA MOTORS INC (TSLA), bought 637,475 shares at $28.76 ($18.3M) on 2011-06-08, disclosed to the SEC on 2011-06-10.
Open-market purchase of $18.3M TSLA by Director. 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.