StockNews.com started coverage on shares of Navidea Biopharmaceuticals (NYSE:NAVB – Free Report) in a research note published on Wednesday. The firm issued a sell rating on the stock. Navidea Biopharmaceuticals Price Performance Shares of NAVB opened at $0.06 on Wednesday. Navidea Biopharmaceuticals has a one year low of $0.02 and a one year high of […]