Anthropic co-founder and president Daniela Amodei has entered the Forbes 400 list with a net worth of approximately $15.5 billion, becoming the youngest self-made female billionaire at age 39. Amodei oversees daily operations and serves as board chair for the AI company, which is currently valued at nearly $1 trillion and plans to launch a U.S. IPO in November. Market expectations indicate Anthropic's annualized revenue surged from $1 billion in early 2025 to $65 billion by late July 2026, with private secondary market valuations previously reaching $1.5 trillion. As the company prepares for one of the largest tech IPOs in history, equity appreciation has substantially increased the wealth of the founding team, pushing multiple co-founders into the ranks of the world's wealthiest individuals.