Most Active Stocks with Public Market Insider Filings Top 5 Net Buyers (By volume, 000's) KWG Resources 3,038 Helix BioPharma 1,916 Antioquia Gold 1,000 Stream Oil & Gas 900 Advanced Explorations 750 Top 5 Net Sellers (By volume, 000's) Avantec Technologies -4,000 Andover Ventures -1,019 Lomiko Metals -1,000 Copper Creek Ventures -1,000 Xpel Technologies -872 Tables represent open market transactions of directly owned equity securities plus purchases and sales of these securities from the exercise of options by company officers and directors for the month ending July 31st, 2009.