Charles E. Dietz, Director at BLONDER TONGUE LABORATORIES INC (BDR), bought 4,500 shares at $1.02 ($5K) on 2013-06-17, disclosed to the SEC on 2013-06-18.
Open-market purchase of $5k BDR 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.