Cuban and Mamma.com

Image by Getty Images via Daylifehttp://money.cnn.com/2008/11/17/news/newsmakers/cuban_insider_trading/

"Billionaire entrepreneur Mark Cuban, owner of the National Basketball Association's Dallas Mavericks, was charged Monday by the Securities and Exchange Commission with insider trading.

"According to the SEC, Cuban sold 600,000 shares of Internet search company Mamma.com in June 2004 using non-public information."

This should really interesting, since Cuban has been pretty deeply involved in issues of public vs. private information and transparency.