Alexis Sofia Cuban is the eldest daughter of billionaire Mark Cuban and Tiffany Stewart, born in Dallas in 2003. She is 22 or 23 in 2026, and she graduated from Vanderbilt University in May 2026.
She is best known through her father and her TikTok and Instagram videos. Her net worth and height have no verified public figures. Treat any exact number you see online as a guess.
Quick Facts (2026 Update)
| Detail | Verified Information |
| Full name | Alexis Sofia Cuban |
| Born | 2003, Dallas, Texas (exact day disputed) |
| Age in 2026 | 22 or 23 |
| Parents | Mark Cuban and Tiffany Stewart |
| Siblings | Alyssa (b. 2006), Jake (b. 2010) |
| High school | Hockaday School, Dallas |
| College | Vanderbilt University (2022–2026) |
| Height | Not publicly confirmed |
| Net worth | Not publicly confirmed |
How Old Is Alexis Cuban?
Most sources agree she was born in 2003. Sites that give an exact date split between September 4 and September 25. Neither date comes from a primary source.
If her birthday falls in September, she turned 23 last month. If you need a safe answer, say she is 23 or "born in 2003."
Who Are Alexis Cuban's Parents and Siblings?
Her father, Mark Cuban, was born July 31, 1958, and is a Pittsburgh native. He co-founded Cost Plus Drugs and is a minority owner of the Dallas Mavericks. Her mother is Tiffany Stewart. The couple met in 1997 and married in 2002.
Alexis is the oldest of three. Alyssa was born in 2006, and Jake arrived in 2010. Some sites list a brother named "Mark Cuban Jr." That claim has no reliable source.
Want to see how other celebrity children are covered? Read our profile of Jenny Lee Arness, the daughter of James Arness.
Where Did Alexis Cuban Go to School?
She grew up in Dallas and finished at the Hockaday School in 2022. She then started at Vanderbilt in Nashville. Her LinkedIn data lists September 2022 to May 2026 as her Vanderbilt dates.
Her final-semester capstone was an internship with Voices for a Safer Tennessee. That group works on firearm safety and advocacy.
Be careful with claims about Duke. One page says she attended Duke and founded "CubanFit." No reliable source backs that up.
What Does Alexis Cuban Do for a Living?
Her work history is mostly internships and early-career roles. Here is what the sources show:
- Cost Plus Drugs. She shared that she worked on the wholesale side of the business one summer.
- Dirk Nowitzki Foundation and Lara Beth. Profile sites report brand strategy internships at both.
- Voices for a Safer Tennessee. This was her capstone internship.
- KPMG. Her LinkedIn page title lists an Associate role at KPMG US. Confirm this on her profile before you cite it.
Is Alexis Cuban a Social Media Star?
Yes, on a modest scale. She posts on both platforms, and her father often joins her TikTok videos. Her videos usually show family life, dances and trends.
That fame is mostly borrowed from her father. Compare that with a creator who built a following alone, like Ashley Serrano.
What Is Alexis Cuban's Net Worth?
No credible outlet publishes a verified net worth for her. She is an early-career professional. Her father's wealth does not equal her own.
Here is why the guesses fail:
- Family wealth is not personal income.
- Early-career salaries are not public.
- Net worth sites rarely show their math.
- No audited source exists.
Mark Cuban has said his "biggest fear" was raising "entitled jerks." His kids also do chores at home.
What About Her Height and Personal Life?
No reliable source confirms her height. Any exact number you see is an estimate. This site does not publish one.
Her family is close and publicly warm. She has kept her dating life largely private. One low-quality site names a boyfriend. This profile excludes that claim because no credible outlet confirms it.
For another example of a private partner of a famous person, see Angelica Zachary. For a profile of a famous spouse, see Marla Heyman.
Common Questions About Alexis Cuban
Q: How old is Alexis Cuban in 2026?
A: Alexis Cuban is 22 or 23 years old in 2026 because she was born in 2003. Sources disagree on the exact birth date. Most point to a September birthday, which would make her 23 by October 2026. Without a confirmed date, "born in 2003" is the safest wording.
Q: Who is Alexis Cuban's father?
A: Her father is Mark Cuban, the businessman born July 31, 1958. He co-founded Cost Plus Drugs and is a minority owner of the Dallas Mavericks. He is also known for appearing on Shark Tank. His public profile is the main reason people search for her.
Q: Where did Alexis Cuban go to college?
A: Alexis Cuban attended Vanderbilt University in Nashville, Tennessee. Her profile lists study from September 2022 to May 2026. Claims that she attended Duke appear on low-quality sites and lack reliable sourcing.
Q: How many siblings does Alexis Cuban have?
A: Alexis Cuban has two younger siblings, Alyssa and Jake. Alyssa was born in 2006 and Jake in 2010. Alexis is the eldest of the three. Claims of an older brother named Mark Cuban Jr. are unsupported.
Q: What is Alexis Cuban's net worth?
A: No verified net worth exists for Alexis Cuban. She is an early-career professional, and her income is not public. Her father's wealth does not transfer to her by default. Treat any exact figure as an unsourced estimate.
Q: What is Alexis Cuban's height?
A: Alexis Cuban's height is not publicly confirmed by a reliable source. Websites that list one rarely cite where it came from. Without a measurement from her or a credible outlet, any number is a guess.
Q: Does Alexis Cuban work for Cost Plus Drugs?
A: Alexis Cuban has worked with Cost Plus Drugs, the company her father co-founded. She described time on its wholesale side during a summer. Her more recent LinkedIn page title lists an Associate role at KPMG US, so check her profile for her current employer.
