Materials Corp Of America Building, 10% Owner at ELKCORP (ELK), bought 2,123,799 shares at $25.80 ($54.8M) on 2007-02-22, disclosed to the SEC on 2007-02-26.
Open-market purchase of $54.8M ELK by 10% Owner. Below the thresholds we flag for high-conviction alerts (no C-suite role, rare reversal, cluster, or A-grade history).
Negative factors outweigh the positive ones.