Joseph Donovan, Director at Zoom Telephonics, Inc. (ZMTP), bought 1,000 shares at $0.35 ($350) on 2011-09-12, disclosed to the SEC on 2011-09-14.
Open-market purchase of $350 ZMTP by Director. Below the thresholds we flag for high-conviction alerts (no C-suite role, rare reversal, cluster, or A-grade history).
Nothing distinguishes this filing.