Dumont's 69% Mavericks Stake: What It Means for the NBA

Dr. Annelies De Vos · 2026-11-04

When Patrick Dumont and his wife, Sivan Ochshorn, quietly increased their stake in the Dallas Mavericks to 69%, it wasn't just another ownership tweak. It was a power shift that could ripple through the NBA for years to come. The transaction, which closed last month, involved acquiring Miriam Adelson's share of the franchise. And just like that, the Dumont family became the clear controlling owners. ### The Family Ties Behind the Deal Sivan Ochshorn is Miriam Adelson's daughter. Patrick Dumont is her son-in-law. So this isn't a hostile takeover or a random investment group swooping in. It's a family consolidating its grip on a team they already had a major hand in. Back in December 2023, Mark Cuban sold control of the Mavericks to the Adelson and Dumont families. At the time, Cuban stayed on with a 27% stake, and many wondered how long he'd stick around. Now, with Dumont at 69%, the answer is clearer: Cuban's role is shrinking, even if he's not gone entirely. ### What This Means for Mark Cuban Cuban, the face of the Mavericks for over two decades, still holds that 27% slice. But let's be real—27% doesn't give you the final say. He's now a significant minority owner, not the decision-maker. For fans who grew up watching Cuban courtside, yelling at refs and tweeting through games, this is a bittersweet moment. The guy who turned the Mavericks into a title contender is stepping back, piece by piece. ### Why the 69% Number Matters In the NBA, ownership stakes aren't just about money—they're about control. Crossing the 50% threshold gives you majority control. At 69%, the Dumont family has a supermajority. That means they can make major decisions without needing to court other investors. They can set the direction of the franchise, negotiate arena deals, and shape the team's future. It's a level of control that Cuban once enjoyed, and now it's firmly in Dumont's hands. ### The Bigger Picture: NBA Ownership Trends This isn't happening in a vacuum. Across the league, we're seeing a shift toward more corporate, family-led ownership groups. The days of a single maverick (pun intended) running a team are fading. The Dumonts, with their casino and hospitality background, bring a different flavor of ownership. They're used to running large enterprises, and they'll likely apply that same playbook to the Mavericks. > "Ownership changes in sports are never just about money. They're about vision, legacy, and who gets to write the next chapter." ### What's Next for the Mavericks? For now, the team's basketball operations remain stable. But don't be surprised if we see changes in the coming years—whether it's a new arena push, a rebrand, or a different approach to roster building. The Dumont family didn't increase their stake to sit quietly. They're here to make their mark. And for Cuban? He'll still be around, just not in the driver's seat. It's the end of an era, but also the start of something new. The Mavericks are now a family business, and the family just tightened its grip.