SNGX - Soligenix up 10% premarket on Fast Track for RiVax in U.S. February, 13 2020 07:51 AM Soligenix Inc. The FDA designates Soligenix's (NASDAQ:SNGX) RiVax (heat stable ricin toxin vaccine) for Fast Track review for the prevention of ricin intoxication.More news on: Soligenix, Inc., Healthcare stocks news, Stocks on the move, Read more ...