Business & Enterprise7 min reading time
10 of the US' youngest billionaires in 2026 — and how they got their fortunes
Business Insider
Read the full articleForbes' 2026 list of America's 400 richest billionaires includes a record 10 under 40, mostly AI founders from companies like Anthropic, Surge AI, OpenAI, and Cognition. Anthropic's seven cofounders alone represent a significant portion, pledging most of their wealth to charity. Only one, Lukas Walton, inherited his fortune; most young billionaires reside in California.


