John W. Gerdelman, Director at SYCAMORE NETWORKS INC (SCMR), bought 7,450 shares at $21.16 ($158K) on 2009-12-16, disclosed to the SEC on 2011-10-28.
Open-market purchase of $158k SCMR 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.