Shahed Yousaf, President, Research Biotech at SIGMA ALDRICH CORP (SIAL), sold 2,000 shares at $46.00 ($92K) on 2007-08-01, disclosed to the SEC on 2007-08-06.
Open-market sale of $92k SIAL by President, Research Biotech. 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.