Coinspeaker GILD Stock 1% Down in Pre-market, Gilead Sciences Inks $21 Billion Acquisition Deal with ImmunomedicsSince the Gilead acquisition announcement was published, investors have gone extremely bullish on the shares of Immunomedics.GILD Stock 1% Down in Pre-market, Gilead Sciences Inks $21 Billion Acquisition Deal with Immunomedics