Warren Buffett has warned shareholders his time is nearly up, talked up his successor, and taken steps to protect Berkshire Hathaway and his legacy.

When Warren Buffett's Berkshire Hathaway makes big moves in the market, this time for selling off a portion of its Apple stock, investors tend to notice. The move has sparked interest and

In his 60th annual letter to shareholders released Saturday, the folksy Buffett bragged about footing a record $26.8 billion tax bill.