When most investors put billions into a company, they tend to buy in—literally. New phone, new laptop, new earbuds. Warren Buffett? Not so much. For years, the Oracle of Omaha held onto a $20 flip ...

The famed investor largely shied away from tech until his 2016 Apple bet. It turned out to be his greatest investment.

The world’s most successful investor intends to hand the reins to Greg Abel at the end of the year, but he has never been ...