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Mark Cuban

Mark Cuban is an American businessman, investor, and television personality.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

Mark Cuban is an American businessman, investor, and television personality. He is best known as the co-founder of Broadcast.com, former principal owner of the Dallas Mavericks, and a longtime investor on the television series Shark Tank.

Early life and education

Mark Cuban was born in Pittsburgh, Pennsylvania, on July 31, 1958. Available sources identify him as an American entrepreneur and businessman, but do not provide detailed education information in the supplied results.

Business career

Cuban became widely known after co-founding Broadcast.com, an internet audio and video streaming company, which he sold to Yahoo! in 1999. He later expanded into sports ownership, media, and other investments.

Dallas Mavericks ownership

Cuban served as the principal owner of the Dallas Mavericks and is now a minority owner. His ownership of the NBA team became one of his most visible public roles.

Shark Tank

Cuban joined Shark Tank as one of the show's investor panelists and remained on the series through 2025. He became one of the most recognizable 'sharks' on the program.

Key facts

  • Cuban co-founded Broadcast.com and sold it to Yahoo! in 1999 for billions of dollars, which made him a billionaire.
  • He was the principal owner of the Dallas Mavericks before becoming a minority owner.
  • He appeared as one of the investors on Shark Tank from 2012 to 2025.
  • Forbes estimated his net worth at US$6 billion in January 2026.
  • He has also been involved in entertainment and media ventures, including 2929 Entertainment.

Frequently asked questions

How old is Mark Cuban?
He was born on July 31, 1958, which makes him 67 years old as of 2026.
What is Mark Cuban's net worth?
Forbes estimated his net worth at US$6 billion in January 2026.
How did Mark Cuban make his money?
He made much of his fortune by co-founding Broadcast.com and selling it to Yahoo! in 1999, then expanding into investments, sports ownership, and media ventures.
Who is Mark Cuban married to?
He is married to Tiffany Stewart; they married in 2002.
What is Mark Cuban's role on Shark Tank?
He is an investor on the show, where entrepreneurs pitch business ideas to a panel of wealthy investors.

References

  1. Wikipedia — https://en.wikipedia.org/wiki/Mark_Cuban
    Supports: Birth date, business identity, ownership of the Dallas Mavericks, Shark Tank role, and Forbes net worth estimate.
  2. Encyclopaedia Britannica — https://www.britannica.com/money/Mark_Cuban
    Supports: Birth date, Broadcast.com co-founding, sale to Yahoo!, Dallas Mavericks ownership, and Shark Tank participation.
  3. Biography.com — https://www.biography.com/business-leaders/mark-cuban
    Supports: Broadcast.com sale, Dallas Mavericks ownership, Shark Tank role, and marriage to Tiffany Stewart.
  4. Bloomberg — https://www.bloomberg.com/billionaires/profiles/mark-cuban/
    Supports: Broadcast.com sale to Yahoo!, billionaire status, and business holdings.