Mark Cuban is 67 years old in 2026. Mark Cuban became a billionaire in 1999 when he sold Broadcast.com to Yahoo for $5.7 billion — just before the dot-com crash. He used that fortune to buy the Dallas Mavericks NBA team, turning them into a championship franchise. At 67, Cuban sold his controlling interest in the Mavericks in 2023 and has redirected his energy toward Cost Plus Drugs, his pharmaceutical startup that sells generic medications at cost, which has become one of the most disruptive healthcare businesses in America.
Mark Cuban at a Glance: Quick Facts
| Detail | Info |
| Full Name | Mark Cuban |
| Date of Birth | July 31, 1958 |
| Age in 2026 | 67 |
| Birthplace | Pittsburgh, Pennsylvania, USA |
| Known For | Shark Tank · Former Dallas Mavericks Owner · Cost Plus Drugs |
| Net Worth | ~$5.7B |
| Zodiac Sign | Leo |
| Generation | Baby Boomer |
Mark Cuban's Age at Every Major Milestone
| Age | Year | Milestone |
| 25 | 1983 | Moved to Dallas with $60 in his pocket; slept on a friend's floor |
| 30 | 1988 | Founded MicroSolutions, a computer consulting company |
| 40 | 1998 | Co-founded Broadcast.com; sold it to Yahoo for $5.7 billion the following year |
| 41 | 2000 | Bought the Dallas Mavericks for $285 million |
| 54 | 2012 | Joined the Shark Tank panel; became one of its most recognizable investors |
| 67 | 2025 | Cost Plus Drugs disrupting pharmaceutical pricing; active angel investor |
How Old Is Mark Cuban's Family in 2026?
Here is how Mark Cuban's age compares to key members of their family as of July 2026:
| Relation | Name | Age in 2026 | Age Gap |
| Wife | Tiffany Stewart | 50 | Mark Cuban is 17 yrs younger |
| Daughter | Alexis Cuban | 23 | Mark Cuban is 44 yrs younger |
| Daughter | Alyssa Cuban | 20 | Mark Cuban is 47 yrs younger |
| Son | Jake Cuban | 16 | Mark Cuban is 51 yrs younger |
Frequently Asked Questions
Q: How old is Mark Cuban in 2026?
A: Mark Cuban is 67 years old in 2026. He was born on July 31, 1958, in Pittsburgh, Pennsylvania, and will turn 68 on July 31, 2026.
Q: What is Mark Cuban's net worth in 2026?
A: Mark Cuban's net worth is approximately $5.7 billion in 2026 according to Forbes, largely generated by the sale of Broadcast.com and later the Dallas Mavericks.
Q: Did Mark Cuban sell the Dallas Mavericks?
A: Yes. Mark Cuban sold a controlling interest in the Dallas Mavericks in December 2023 to Miriam Adelson and her family for approximately $3.5 billion, which valued the team at $3.5 billion total.
Q: What is Cost Plus Drugs?
A: Cost Plus Drugs is a pharmaceutical company founded by Mark Cuban in 2022 that sells generic medications at cost plus a small markup, dramatically undercutting traditional pharmacy pricing.