Steve Ballmer

Steve Ballmer retired as CEO of Microsoft in February 2014 and didn't take long to move onto his next job, boss of the Los Angeles Clippers. In August 2014 he closed his $2 billion purchase of the team, the highest price ever paid for an NBA squad. His passion for basketball is nothing new. He began buying season tickets to the Seattle SuperSonics in the 1980s and Microsoft cofounder Paul Allen, owner of the Portland Trail Blazers, encouraged Ballmer to buy a team of his own. He failed in two previous bids, one to buy the SuperSonics in 2006 and another to acquire the Sacramento Kings in 2013, before purchasing the Clippers. A Detroit native, he dropped out of Stanford's MBA program to join Harvard classmate Bill Gates in 1980 as employee number 30. He officially became Microsoft's largest single shareholder in April 2014, as Gates continued to sell shares as he diversifies his fortune. [+]