Buffett doubles Apple stake to $18bn in January
Berkshire Hathaway is currently among the top five shareholders of Apple after the investment firm more than doubled its stake in the iPhone manufacturer last month to 133 million shares valued at $18.2bn, according to Warren Buffett. (FT)

AIG board set to penalise chief amid disappointing performance
Directors of American International Group are believed to be weighing options including replacing chief executive Peter Hancock, amid concerns over a major setback to the US insurer’s turnaround plan following a $3.04bn loss for the quarter ended December 2016. (WSJ)