Editor's note: This story has been corrected. Due to a mistake on Mason Capital's reporting forms our story originally stated that Mason Capital had purchased Babcock & Wilcox stock. In fact the hedge fund had sold shares in the company. See below. In a victory for common sense the trading behavior of company executives directors and large shareholders in the stocks of firms they're registered "insiders" at have been proven profitable to monitor by both academic studies and (more importantly) the experience of your fellow professional investors. Below are lists of the top 10 mainly open-market insider purchases and ...