Mark Cuban Regrets Selling Dallas Mavericks to Adelson and Dumont Families

Mark Cuban’s relationship with the Dallas Mavericks‘ new ownership continues to deteriorate. The billionaire entrepreneur, who sold his majority stake to the Adelson and Dumont families in December 2023, made his frustrations public during a recent appearance on the « Intersections » podcast.

« I don’t regret selling, » Cuban said. « I regret who I sold to. I made a lot of mistakes in the process, and I’ll leave it at that. »

Complete exclusion from basketball decisions

The $3.5 billion transaction was supposed to be a partnership combining Cuban’s basketball expertise with the financial resources of the Las Vegas Sands Corp. owners. Cuban, who retained a 27% stake, initially boasted that « nothing really changes except my bank account. »

However, the reality proved drastically different. Cuban was completely boxed out of basketball operations, with no contractual language guaranteeing his continued involvement in team decisions. The situation reached a breaking point when then-general manager Nico Harrison traded Luka Doncic to the Los Angeles Lakers in February 2025 without Cuban’s knowledge.

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Cuban was blindsided by the deal, receiving a call from Harrison only after the trade had been finalized. The transaction is now widely considered one of the worst trades in sports history, as the Mavericks struggled with a 24-51 record this season despite acquiring Anthony Davis, who played just 29 games before being traded to Washington.

Emotional toll drives sale decision

Cuban originally cited financial pressures as his motivation for selling, describing himself as a « middle-class billionaire » unable to fund a championship contender. On the podcast, he revealed the emotional burden also played a significant role.

« You hear the passion and everything, » Cuban said. « Now imagine going up and down like that every single game. That’s hard. My kids, they were coming of age where they would have the mindset that they want to work at the Mavs. I didn’t want them to. If fans don’t like what you’re doing or the team’s not doing well, you’re the worst human being on the planet. »

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The Mavericks did experience one bright spot, winning the draft lottery with just 1.8% odds to secure Cooper Flagg with the No. 1 pick. While Flagg emerged as a Rookie of the Year candidate, his presence hasn’t translated into wins for a franchise still reeling from the Doncic trade fallout.