John C. Unkovic, Director at MINE SAFETY APPLIANCES CO (MSA), bought 1,000 shares at $33.75 ($34K) on 2008-08-04, disclosed to the SEC on 2008-08-04.
Open-market purchase of $34k MSA 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.