Seven people left OpenAI in 2021 to build an AI company centered on safety. According to a Bloomberg report, each of Anthropic's seven co-founders now holds a stake worth more than $13 billion.

Bloomberg reports that the co-founders each own roughly 1.4% of the company, with ownership estimates for the individual founders ranging from 1% to 2%—slices that look small on paper but translate into ten-figure holdings at Anthropic's current scale.

How the Numbers Stack Up

The figures rest on Anthropic's latest private valuation. In May 2026, the company raised $65 billion in a Series H funding round, landing at a post-money valuation of $965 billion. At that mark, a 1.4% stake works out to roughly $13.5 billion—the arithmetic behind the headline number. Because the valuation comes from a private funding round rather than a traded market, those stakes are paper values rather than liquid holdings.

The founding group includes CEO Dario Amodei and President Daniela Amodei, the sibling duo who have become the public faces of the company.

They are not the only early backers holding a large position. Former Google CEO Eric Schmidt owns roughly 1% of Anthropic, a stake that dates back to the company's Series A round in 2021.

Revenue, Losses, and an IPO on the Calendar

Anthropic reported $16.8 billion in revenue for the third quarter of 2026, a 46% increase from the same period a year—a quarterly figure that annualizes to roughly $67 billion. The company is also posting substantial losses, which have been attributed to non-cash accounting items—charges that appear on the books without money actually leaving the bank account.

Anthropic is preparing for an initial public offering targeted for November 2026. In investor discussions, the potential valuation for the listing has ranged from $1.5 to $2 trillion—a range that sits well above the $965 billion private mark set in May, and one of the figures set to draw the most attention as the listing approaches.

A Governance Structure Built to Resist Market Pressure

Anthropic is structured as a public-benefit corporation, or PBC, which allows leadership to weigh a stated mission alongside shareholder returns rather than pursuing profit above everything else. In Anthropic's case, that mission centers on AI safety.

A newly formed Founder LLC gives the co-founders 50.1% combined voting control. The founders own a small fraction of the company's economics but control a majority of the votes—an arrangement designed to keep strategic decisions with the founding group even as the ownership base widens toward a public listing.

The co-founders have also pledged to donate the majority of their wealth.