Dumont Family Takes Control of Mavericks

Patrick and Sivan Dumont completed the purchase of Miriam Adelson's Mavericks shares, giving them a 69% controlling stake in the franchise.

Updated on Nov. 3, 2026 in Basketball

Dumont Family Takes Control of Mavericks

Patrick Dumont and Sivan Dumont purchased Miriam Adelson's shares of the Dallas Mavericks in October 2026, establishing a 69% controlling stake. Dumont also holds an option to reduce Mark Cuban's remaining ownership from approximately 27% to 7%.

Why it matters

The transaction consolidates ownership of the Dallas franchise under the Dumont family while Cuban's relationship with ownership has deteriorated since the December 2023 sale. For Dallas fans, control of the team's direction now rests largely with one ownership group.

The Dumonts hold 69% of the franchise following the October 2026 purchase, compared with Cuban's remaining stake of roughly 27%. Dumont's option to reduce Cuban's share to 7% expires in December 2027, and its exercise remains unconfirmed.

The players

Patrick Dumont

Patrick Dumont is a co-owner who, with Sivan Dumont, now holds a controlling 69% stake in the Dallas Mavericks.

Mark Cuban

Mark Cuban is the longtime Mavericks owner who purchased the franchise for $285 million in 2000 and retains a minority stake subject to Dumont's option.

Masai Ujiri

Masai Ujiri is a veteran NBA executive who took over as Mavericks team president in May 2026.

The details

The completed October 2026 transaction followed the December 2023 ownership sale. Dumont intends to exercise an option over time to acquire an additional 20 percentage points of the franchise from Cuban at the valuation established in 2023.

December 2023: Ownership sale to the Adelson-Dumont family finalized.
February 2025: Harrison traded Luka Doncic to the Los Angeles Lakers.
November 2025: Harrison fired as general manager.
October 2026: Dumonts completed purchase of Adelson's shares.
December 2027: Option to acquire Cuban's shares expires.

Season Trajectory

The control shift reverses the ownership era that began when Cuban bought the Mavericks for $285 million in 2000, altering the franchise's long-term direction. Ownership and front-office changes following Luka Doncic's February 2025 trade to the Lakers now define the team's rebuilding path.

Control of the Mavericks now rests primarily with the Dumont family, which may influence roster decisions and front-office direction for Dallas fans. Ownership exercise of the remaining option would further consolidate control of the franchise.

The takeaway

Franchise control changes can reshape a team's strategy for years, so following ownership option deadlines and arena plans helps readers track the Mavericks' future direction.

What happens next

The option for the Dumonts to acquire an additional 20 percentage points from Cuban expires in December 2027, and the new Mavericks arena is targeted to open in 2031.