First Week of May 17th Options Trading For Navidea Biopharmaceuticals, Inc. (NAVB) By: Market News Video March 26, 2014 at 12:19 PM EDT Investors in Navidea Biopharmaceuticals, Inc. (NAVB) saw new options begin trading this week, for the May 17th expiration.. Read More >> Related Stocks: Navidea Biopharmaceuticals Inc