MacroGenics licenses MGD015 By: MarketMinute.com Stock News May 18, 2016 at 18:15 PM EDT MacroGenics Inc. (Nasdaq: MGNX) licensed its preclinical biospecifc molecule MGD015 to Janssen Biotech. Shares of the biopharmaceutical leaped $3.02 to close at $21.06. Related Stocks: Macrogenics