 Moleculin Biotech Inc NASDAQ:MBRX shares gapped down before the market opened on Friday . The stock had previously closed at 1.11, but opened at 1.07. Moleculin Biotech shares last traded at 1.03, with a volume of 10,772 shares. A number of research analysts recently issued reports on MBRX shares. Zacks Investment Research upgraded Moleculin Biotech ... 