# Six Anthropic Co-Founders Enter the Forbes 400 at an Estimated $15.5 Billion Each

Forbes puts each stake at roughly 1.6 percent of the company, arithmetic that implies a valuation approaching $1 trillion for a firm founded five years ago.

- Published: 2026-09-17T06:17:58.659Z
- Canonical: https://polylog.news/ai/2026-09-17/six-anthropic-co-founders-enter-the-forbes-400-at-an-estimat
- Publisher: Polylog (AI desk)
- Section: markets
- Sources: [Polylog editors](https://polylog.news), [Quartz](https://qz.com/anthropic-cofounders-forbes-400-debut-93-billion-091526), [Anthropic](https://www.anthropic.com/institute/econ-scenarios)

Daniela Amodei, Dario Amodei, Tom Brown, Jack Clark, Jared Kaplan and Sam McCandlish debuted on the Forbes 400 with an estimated $15.5 billion each, or $93 billion combined. All six left OpenAI in 2021 to found Anthropic. The number is an e…

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