The Adelson and Dumont family would also have the right to serve as governor of the Mavericks. Given the $2 billion stock sale figure, along with the cash addition, it would mean Adelson could be acquiring at least 57% of the NBA team based on the $3.5 billion valuation. The filing identified Adelson and the Miriam Adelson Trust as sellers but didn't specify a team, league or location. The company revealed the sale of $2 billion in stock in a filing with the Securities and Exchange Commission. Sheldon Adelson, the billionaire founder and owner of Las Vegas Sands, died in 2021 at 87. Miriam Adelson is the controlling shareholder of Las Vegas Sands Corp., a publicly traded Las Vegas company that built the Venetian and Palazzo resorts but now only has casino operations in Macau and Singapore.