BUSINESSBerkshire Hathaway Invests in Four Large DrugmakersAmrita ChakravortyNovember 17, 2020November 17, 2020 by Amrita ChakravortyNovember 17, 2020November 17, 202001169 On Monday, Berkshire Hathaway Inc. said that it has begun betting in pharmaceutical sector by investing in the stocks of four large drugmakers.As of September 30, Warren...