InvestmentsTop Global NewsMarketsReal Estate Buffett’s Berkshire boosts its stake in Bank of America to 11.8per cent By financialnews_rlv83x - July 31, 2020 0 67 Warren Buffett’s Berkshire Hathaway Inc said on Thursday it has bought another US$522 million of stock in Bank of America Corp , boosting its already large stake in the second-largest U.S. bank by assets.