Douglas J. MacMaster Jr., Director at MARTEK BIOSCIENCES CORP (MATK), sold 4,907 shares at $23.80 ($117K) on 2009-09-23, disclosed to the SEC on 2010-01-19.
Open-market sale of $117k MATK by Director. 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.