Greg Abel finally puts Buffett's cash pile to work Financial TimesBerkshire Hathaway Buys Back $4.5 Billion of Its Own Shares Bloomberg.comBerkshire Hathaway Q2 earnings on deck; look for buybacks, cash, float (BRK.B:NYSE) Seeking AlphaBerkshire Hathaway Is Set to Report Earnings Saturday. Here's What You Need to Know Investopedia