Mark Cuban is an American billionaire businessman, investor, entrepreneur and television personality. He is best known for building and selling major technology companies, investing in the Dallas Mavericks and spending more than a decade as one of the most recognisable investors on Shark Tank.
Born on July 31, 1958, Cuban built his fortune through technology, media, sports and private investments. As of 2026, he remains active in business through ventures including Mark Cuban Cost Plus Drug Company and several sports-related investments.
Quick Facts About Mark Cuban
| Fact | Details |
|---|---|
| Full Name | Mark Cuban |
| Date of Birth | July 31, 1958 |
| Age | 68 years old |
| Birthplace | Pittsburgh, Pennsylvania, United States |
| Nationality | American |
| Profession | Entrepreneur, investor and businessman |
| Wife | Tiffany Stewart |
| Children | Alexis, Alyssa and Jake |
| Education | Indiana University Bloomington |
| Famous For | Broadcast.com, Dallas Mavericks, Shark Tank |
| Dallas Mavericks Role | Minority owner |
| Former Shark Tank Investor | 2012–2025 |
| Estimated Net Worth | About $6 billion |
Mark Cuban Early Life and Family
Mark Cuban was born on July 31, 1958, in Pittsburgh, Pennsylvania. His father, Norton Cuban, worked in automobile upholstery, while his mother, Shirley Cuban, held various jobs.
Cuban grew up in the Pittsburgh area with his brothers, Brian and Jeff. He developed an interest in earning money and running businesses at an early age.
As a child, he sold garbage bags door to door to raise money for things he wanted. He later sold stamps, coins and newspapers, showing an entrepreneurial mindset long before becoming wealthy.
Mark Cuban Education
Cuban briefly attended the University of Pittsburgh before transferring to Indiana University Bloomington.
He studied at the Kelley School of Business and graduated in 1981 with a Bachelor of Science degree in management.
Even during college, Cuban experimented with small business ideas. These early experiences helped prepare him for the technology and investment ventures that later made him a billionaire.
Mark Cuban Early Business Career
After graduating, Cuban eventually moved to Dallas, Texas. He worked several jobs before entering the computer software industry.
He joined a software retailer but was later fired. Instead of abandoning the industry, Cuban started his own company called MicroSolutions.
MicroSolutions specialised in computer systems integration and software services. The company grew successfully and was sold to CompuServe in 1990 for approximately $6 million.
Cuban reportedly earned around $2 million after taxes from the transaction. The deal gave him substantial capital to pursue larger opportunities.
Broadcast.com and Becoming a Billionaire
One of the most important chapters in the Mark Cuban biography began in the 1990s.
Cuban and Todd Wagner became involved with an internet audio-streaming business that eventually became Broadcast.com. The company was an early pioneer in streaming audio and video over the internet.
As internet adoption expanded, Broadcast.com grew rapidly. Yahoo acquired the company in 1999 in a stock deal valued at approximately $5.7 billion.
The transaction dramatically increased Cuban’s wealth and established him as a billionaire during the dot-com era.
Mark Cuban and the Dallas Mavericks
Cuban purchased a controlling interest in the Dallas Mavericks in 2000 for approximately $285 million.
He became known as one of the NBA’s most involved and outspoken team owners. Cuban regularly attended games and became closely associated with the Mavericks’ public identity.
The team reached the NBA Finals in 2006 and won its first NBA championship in 2011, led by Dirk Nowitzki.
In 2023, Cuban sold the majority of his ownership interest in the Mavericks in a transaction that valued the franchise at several billion dollars.
He did not completely leave the team. As of 2026, Cuban still owns a minority stake of about 27 percent in the Dallas Mavericks.
However, he no longer controls the franchise’s basketball operations in the same way he did during his years as majority owner.
Mark Cuban on Shark Tank
Mark Cuban became widely known outside the technology and sports industries through the television series Shark Tank.
He first appeared as a guest investor before becoming a regular member of the programme. His direct negotiating style, business experience and willingness to make large investments made him one of the show’s most popular personalities.
Cuban remained a major investor on Shark Tank for many years. During that period, he invested in numerous entrepreneurs and businesses featured on the programme.
His final regular episode aired in May 2025, ending approximately 15 years of involvement with the show.
Cuban explained that family considerations played a significant role in his decision to leave. By 2026, he is no longer a regular investor on Shark Tank.
Mark Cuban Cost Plus Drug Company
Healthcare has become another major part of Cuban’s business career.
He co-founded Mark Cuban Cost Plus Drug Company, which launched its online pharmacy business in 2022. The company focuses on selling many prescription medicines using a transparent pricing structure.
Its stated goal is to reduce the cost of medications by limiting traditional pharmacy markups and making pricing easier for customers to understand.
The business has become one of Cuban’s most prominent ventures in recent years and remains an important part of his public business profile in 2026.
Mark Cuban’s Other Investments
Cuban has invested across technology, media, entertainment, healthcare and sports.
He has been associated with businesses including 2929 Entertainment and several companies funded through his private investment activities.
His sports investments have also expanded beyond the Dallas Mavericks. In 2026, Cuban became involved in additional professional basketball investments and participated through Harbinger Sports Partners in acquiring a minority interest connected with Major League Baseball’s Athletics franchise.
These investments demonstrate that Cuban continues to pursue opportunities even after reducing his role with the Mavericks and leaving Shark Tank.
Mark Cuban Wife and Personal Life
Mark Cuban is married to Tiffany Stewart. The couple reportedly met at a gym in Dallas in the late 1990s.
They married in September 2002 in a private ceremony in Barbados.
Tiffany has generally maintained a much lower public profile than her husband. Cuban has frequently spoken about the importance of his family and has credited his wife with helping manage their household while he handles his business activities.
Despite his billionaire status, Cuban has also said that he does not consider himself an excessive spender and tries to teach his children financial responsibility.
Mark Cuban Children
Mark Cuban and Tiffany Stewart have three children.
Their daughters are Alexis and Alyssa, while their son is named Jake.
Cuban has repeatedly discussed his efforts to make sure his children understand that their family’s wealth does not automatically guarantee personal success.
He has said that he wants them to develop independence, discipline and their own ambitions rather than relying entirely on his fortune.
Mark Cuban Net Worth and Earnings
Mark Cuban’s net worth is estimated at approximately $6 billion in 2026.
A major part of his fortune came from the sale of Broadcast.com to Yahoo during the internet boom. His earlier sale of MicroSolutions also provided the foundation for his later investments.
His wealth has since expanded through sports ownership, technology investments, media businesses, healthcare ventures and other private assets.
The sale of his majority interest in the Dallas Mavericks also generated significant proceeds.
However, billionaire net-worth figures regularly fluctuate because the values of private companies, investments and other assets change. Therefore, the $6 billion figure should be treated as an estimate rather than an exact amount.
Mark Cuban’s Current Career in 2026
The Mark Cuban biography shows how a technology entrepreneur became one of America’s most recognisable billionaire investors.
At 68 years old, Cuban remains active in business despite stepping away from his regular Shark Tank role and selling control of the Dallas Mavericks.
His current interests continue to include healthcare, technology, sports investing and entrepreneurship. His long career has made him particularly well known for investing in disruptive businesses and challenging established industries.
Frequently Asked Questions
Q1: Who is Mark Cuban?
Mark Cuban is an American billionaire entrepreneur, investor and businessman. He is best known for Broadcast.com, the Dallas Mavericks, Shark Tank and Mark Cuban Cost Plus Drug Company.
Q2: How old is Mark Cuban?
Mark Cuban is 68 years old as of August 2026. He was born on July 31, 1958, in Pittsburgh, Pennsylvania.
Q3: What is Mark Cuban’s net worth in 2026?
Mark Cuban’s estimated net worth is approximately $6 billion in 2026. His wealth comes from technology businesses, investments, sports ownership and other ventures.
Q4: Who is Mark Cuban’s wife?
Mark Cuban is married to Tiffany Stewart. The couple married in 2002 and generally keeps much of their family life private.
Q5: How many children does Mark Cuban have?
Mark Cuban has three children with his wife Tiffany. Their names are Alexis, Alyssa and Jake.
Q6: Does Mark Cuban still own the Dallas Mavericks?
Yes, but he is no longer the majority owner. Cuban sold control of the Mavericks in 2023 and retains a minority stake of approximately 27 percent.
Q7: Is Mark Cuban still on Shark Tank?
No. Mark Cuban ended his regular run on Shark Tank in 2025 after approximately 15 years on the programme. He said spending more time with his family was one of the main reasons for leaving.
