HealthcareOn the MoveArena chief retires; shares rally 5% after hoursOct. 05, 2015 4:41 PM ETPfizer Inc. (PFE) StockBy: Douglas W. House, SA News Editor3 CommentsAt the board's request, Arena Pharmaceuticals' (ARNA) President & CEO Jack Lief retires. Director Harry Hixson, Ph.D., will take over on an interim basis until a permanent successor is hired.Recommended For YouAbout PFE StockSymbolLast Price% Chg1D5D1M6M1Y5Y10YMarket CapPEYield (TTM)Rev Growth (YoY)Prev. CloseCompare to PeersRelated StocksSymbolLast Price% ChgPFE--Pfizer Inc.Trending AnalysisTrending News