The Dumont family has completed the purchase of Miriam Adelson's shares in the Dallas Mavericks, giving them full ownership of the NBA franchise, according to a report by Kurt Helin of NBC Sports on November 4, 2026.
The transaction transfers Adelson's stake to the Dumont family, who previously held a controlling interest. Financial terms of the deal were not disclosed.
Adelson, the widow of casino magnate Sheldon Adelson, had been a minority owner of the Mavericks. The Dumont family's acquisition consolidates their control over the team's operations and decision-making.
