Michael A. Cook, Senior VP, WW HTH Water Products at ARCH CHEMICALS INC (ARJ), sold 2,150 shares at $35.62 ($77K) on 2010-12-07, disclosed to the SEC on 2010-12-08.
Open-market sale of $77k ARJ by Senior VP, WW HTH Water Products. Not flagged as scheduled, tax-driven, or recurring — but no specific bearish signal from our filters. Reasons for insider sales vary widely.
Something here stands out, but not much.