Stephane Biehler, Chief Accounting Officer at NYSE Euronext (NYX), sold 5,555 shares at $29.30 ($163K) on 2012-02-14, disclosed to the SEC on 2012-02-15.
Seasonal sale ($163k) by Chief Accounting Officer — this insider has traded NYX in February in at least three consecutive prior years. Pattern-driven, low signal.
Negative factors outweigh the positive ones.