Tom Maloney , Rebecca Torrence and Dylan Sloan

October 27, 2026 — 5:55am

Anthropic’s seven co-founders each hold roughly 1.4 per cent of the company, its IPO filing revealed, giving them individual fortunes of more than $US13 billion ($18.5 billion).

That vaults all of them, including siblings Dario and Daniela Amodei, among the top 300 people on the Bloomberg Billionaires Index, and makes them richer than well-known finance billionaires like Bill Ackman and Stan Druckenmiller.

Siblings Dario and Daniela Amodei co-founded Anthropic five years ago. Bloomberg

The fortunes, which are based on Anthropic’s $US965 billion valuation in its last funding round, jumped from Bloomberg’s previous calculation of $US8 billion each.…