Bryan D. Rosenberger, Director at Horsehead Holding Corp (ZINC), bought 3,000 shares at $7.18 ($22K) on 2011-11-23, disclosed to the SEC on 2011-11-23.
Open-market purchase of $22k ZINC 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.