Gilead Sciences Inc, Ten Percent Owner at Achillion Pharmaceuticals, holds 1.12M shares in Achillion Pharmaceuticals (Ticker: ~ACHN), holds 1.27M shares in Assembly Biosciences (Ticker: ASMB), holds 7.35M shares in Xilio Therapeutics (Ticker: XLO). Most recently, Gilead Sciences Inc ― shares of Achillion Pharmaceuticals on ― for an estimated value of ―.