Charles Hunter, CEO at Xenonics Holdings, Inc. (XNN), bought 2,000 shares at $2.15 ($4K) on 2007-09-11, disclosed to the SEC on 2007-09-18.
Open-market purchase of $4k XNN by CEO. 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.