What Happened to Mark Cuban's Sale of the Dallas Mavericks?

Mark Cuban, the charismatic and hands-on owner who transformed the Dallas Mavericks into an NBA champion, completed the sale of a 73% majority stake in the franchise to Miriam Adelson, the controlling shareholder of Las Vegas Sands, and her family in December 2023. The deal was valued at approximately $3.5 billion, with Cuban retaining a 27% minority stake and initially expecting to maintain control over basketball operations. Cuban cited several reasons for the sale, including estate planning to relieve his children of the burden of ownership and a recognition that the future of sports franchises increasingly involves large-scale real estate development, such as integrated casino-arena complexes, which he was not personally prepared to invest billions into.

However, the narrative shifted dramatically by March 2026 when Cuban publicly expressed significant regret. In interviews on the 'Intersections' podcast and with WFAA, he clarified that his regret was not about selling the team, but specifically about who he sold it to, stating, 'I made a lot of mistakes in the process, and I'll leave it at that.' This sentiment was largely fueled by a series of controversial decisions made by the new ownership, particularly the 'shocking' trade of franchise cornerstone Luka Dončić to the Los Angeles Lakers in February 2025. Cuban claims he was blindsided by this move, learning of it via a late-night call from then-General Manager Nico Harrison, and publicly labeled it a 'catastrophic mistake.'

The consequences of the sale and subsequent management decisions have been stark for the Mavericks. General Manager Nico Harrison, who executed the Dončić trade, was fired in November 2025. The primary asset acquired in the Dončić trade, Anthony Davis, was later traded to the Washington Wizards in February 2026 due to recurring injuries. The team's performance plummeted, and as of March 2026, the Mavericks, despite drafting highly-touted Cooper Flagg as the No. 1 pick in the 2025 NBA Draft, were 13th in the Western Conference with a 24-50 record and had been eliminated from playoff contention for the second consecutive season.

Miriam Adelson and her son-in-law, Patrick Dumont, who serves as the team's governor, have focused on leveraging the Mavericks to advocate for legalized casino gambling in Texas, with the long-term goal of building a casino-arena complex in Dallas. This strategic direction, coupled with the team's on-court struggles and the controversial personnel moves, appears to be at the heart of Cuban's expressed regrets. Furthermore, the Adelson and Dumont families have an option to purchase an additional 20% of Cuban's remaining stake within the first four years of their ownership, indicating a further reduction of his influence by December 2027. Cuban's current role is primarily as an adviser to Dumont, who holds all final decision-making authority.