Gerrit van den Dool, Insider at SIGMA ALDRICH CORP (SIAL), sold 10,000 shares at $65.00 ($650K) on 2010-11-04, disclosed to the SEC on 2010-11-08.
Open-market sale of $650k SIAL by Insider. Not flagged as scheduled, tax-driven, or recurring — but no specific bearish signal from our filters. Reasons for insider sales vary widely.
Nothing distinguishes this filing.