AI Founders Dominate Forbes 400's Youngest Billionaires as Seven of Ten Fortunes Trace to the Boom
As of September 4, 2026, seven out of the ten youngest individuals on the Forbes 400 list, all newcomers, amassed their wealth through artificial intelligence, with a record entry threshold of $4.4 billion. The count of billionaires under 40 has increased to ten, though their total wealth decreased to $169 billion from $357 billion in 2025. Four of the ten are from Anthropic, each valued at $15.5 billion: Tom Brown, Daniela Amodei, Jack Clark, and Sam McCandlish. The richest newcomer is Greg Brockman, 38, with a fortune of $25.5 billion, while the youngest member is 30-year-old Steven Hao, valued at $5.8 billion. Only three from 2025 remain: Edwin Chen, Vlad Tenev, and Lukas Walton, who has $44.4 billion.
Key facts
- Seven of the ten youngest 2026 Forbes 400 members made their money from AI, and all seven are first-time members
- Forbes set a record $4.4 billion minimum for the 2026 ranking, using net worths as of September 4, 2026
- The under-40 cohort doubled from four in 2025 to ten, while its combined wealth fell from $357 billion to $169 billion
- Four Anthropic cofounders — Tom Brown, Daniela Amodei, Jack Clark and Sam McCandlish — are each estimated at $15.5 billion and tied at No. 75
- Greg Brockman, OpenAI president, is the richest newcomer on the full list at $25.5 billion, disclosed in May 2026 trial testimony
- Steven Hao, 30, of Cognition is the youngest person on the ranking at $5.8 billion; Palmer Luckey, 33, of Anduril follows at $5.9 billion
- Lukas Walton, 39, the only inheritor in the group, is worth $44.4 billion, about a quarter of the cohort's total
- Edwin Chen of Surge AI reached $18 billion without raising venture capital, owning roughly 75% of the company
Entities
Artists
- Tom Brown
- Daniela Amodei
- Dario Amodei
- Jack Clark
- Sam McCandlish
- Greg Brockman
- Steven Hao
- Palmer Luckey
- Edwin Chen
- Vlad Tenev
- Lukas Walton
- Mark Zuckerberg
- Josh Kushner
- Nathan Blecharczyk
- Sam Altman
- Elon Musk
- Baiju Bhatt
- Scott Wu
- Walden Yan
- Alexandr Wang
- Jared Kaplan
- Sam Walton
- John Walton
- Jerry Reinsdorf
- Michael Jordan
- Archie Aldis Emmerson
- J.R.R. Tolkien
- Donald Trump
- Alex Wang
Institutions
- Forbes
- Anthropic
- OpenAI
- Cognition
- Anduril
- Surge AI
- Robinhood
- Walmart
- Meta
- Airbnb
- Builders Vision
- Chicago Bulls
- NBA
- World Bank
- Stanford University
- Charles Schwab
- TD Ameritrade
- E*Trade
- GameStop
- Nasdaq
- Harmonic
- MIT
- Harvard University
- University of California, Santa Cruz
- Stripe
- Amazon
- Nvidia
- Scale AI
- Cerebras
- CoreWeave
- Palantir
- Founders Fund
- Oculus
- Lockheed Martin
- Northrop Grumman
- U.S. Army
- United Nations Security Council
- Bloomberg
- Import AI
- AI Index
- Stanford Institute for Human-Centered Artificial Intelligence
- NeurIPS
- Johns Hopkins University
- Princeton University
- International Olympiad in Informatics
- Citibank
- Ramp
- Windsurf
- Kickstarter
- UCLA
- Forbes 400
- Stanford
- Harvard
- UC Santa Cruz
- Pentagon
- Quartz
Locations
- United States
- Rogers
- Arkansas
- Bentonville
- Wyoming
- Chicago
- Bulgaria
- Virginia
- North Dakota
- Florida
- Taiwan
- Southern California
- Costa Mesa
- California
- Washington