Mark Cuban: The Man Behind The Mavericks Though he's regularly fined for shouting down NBA referees, billionaire Mark Cuban is credited for turning the Dallas Mavericks around. Now, the Internet entrepreneur is being investigated for insider trading by the Securities and Exchange Commission.

Mark Cuban: The Man Behind The Mavericks

Mark Cuban: The Man Behind The Mavericks

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Mark Cuban is the chairman of HDNet and owner of the Dallas Mavericks. Ronald Martinez/Getty Images hide caption

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Ronald Martinez/Getty Images

Though he's regularly fined for shouting down NBA referees, billionaire Mark Cuban is credited for turning the Dallas Mavericks around. Now, the Internet entrepreneur is being investigated for insider trading by the Securities and Exchange Commission.

Dave Zirin discusses Cuban's alleged misconduct and its precedents. Zirin writes for The Nation magazine, and is the author of A People's History of Sports in the United States.