G. D. Madden, Director at KNIGHT TRANSPORTATION INC (KNX), sold 1,000 shares at $26.67 ($27K) on 2016-05-11, disclosed to the SEC on 2016-05-12.
Seasonal sale ($27k) by Director — this insider has traded KNX in May in at least three consecutive prior years. Pattern-driven, low signal.
Negative factors outweigh the positive ones.
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