GTBP - GT Biopharma up 20% on plan for coronavirus treatment March, 10 2020 11:29 AM GT Biopharma Inc. Thinly traded nano cap GT Biopharma (OTCQB:GTBP +20%) is, yet another, would-be player in the rush to develop a drug to treat COVID-19.More news on: GT Biopharma, Inc., Healthcare stocks news, Stocks on the move, Read more ...