ChainCatcher news, according to The Athletic reporter Shams Charania, Mark Cuban is selling the majority stake of the Dallas Mavericks to Miriam Adelson and the Adelson family, valued at approximately $3.5 billion. As one of the most unique transactions in NBA history, Cuban retains a portion of the team's shares and control over the team's basketball operations.Previously, Mark Cuban purchased the Dallas Mavericks in 2000 for $285 million.