Investors Taking Note Of Cowen's GenMark Diagnostics Upgrade By: Benzinga via Benzinga September 16, 2016 at 11:15 AM EDT GenMark Diagnostics, Inc (NASDAQ: GNMK) shares are trading higher by $1.45 (18 percent) at $10.27 in Friday's session. Investors ... Read More >> Related Stocks: Genmark Diagnostics