Warren Buffett’s $13B bonanza: Move makes Berkshire Hathaway Bank of America’s largest shareholder

Warren Buffett became Bank of America’s largest shareholder on Tuesday in a deal that made him billions. A Berkshire Hathaway Inc. investment that began in 2011 translated into 700 million shares Bank of America Corp. stock by the end of the day. Berkshire Hathaway is now the biggest shareholder in both the second- and third-largest U.S.…