Berkshire Hathaway's cash pile drops to $373.31bn in 4Q down from $381.7bn in the previous quarter following after a rather disappointing quarter. Operating profits fell nearly 30% in Warren Buffett’s last quarter as CEO, as insurance underwriting earnings slumped. That metric fell by more than 54%, and the company warned of potential future challenges to the business because of strong competition and rising claims. Berkshire also took a $4.5bn impairment on its Kraft Heinz and Occidental Petroleum holdings. (via BBG)