Lawrence A. Bock, Director at FEI CO (FEIC), sold 22,500 shares at $38.86 ($874K) on 2011-05-17, disclosed to the SEC on 2011-05-18.
Seasonal sale ($874k) by Director — this insider has traded FEIC in May in at least three consecutive prior years. Pattern-driven, low signal.
Negative factors outweigh the positive ones.