Pulse Biosciences (NASDAQ:PLSE – Get Free Report) was upgraded by stock analysts at StockNews.com to a “sell” rating in a report issued on Tuesday. Pulse Biosciences Trading Down 5.5 % Shares of PLSE traded down $1.04 on Tuesday, reaching $17.74. The stock had a trading volume of 307,818 shares, compared to its average volume of […]