The seven founders of Anthropic could become billionaires after their IPO

Anthropic, the company behind Claude, set a range of US$ 70 to US$ 78 per share for its upcoming initial public offering. With these values, its market capitalization could be between US$ 1.2 trillion and US$ 1.4 trillion, a move that would elevate the fortunes of its seven co-founders.

According to estimates from Forbes, Dario Amodei and the other founders could reach individual net worths between US$ 17.6 billion and US$ 17.9 billion. The stock is expected to debut on Nasdaq under the symbol ANT on November 19, as reported by CNBC.

How much money could the founders of Anthropic have

The calculations from Forbes reference a stock market debut at the midpoint of the announced price range. In that scenario, the estimated fortunes of the seven co-founders would be:

• Dario Amodei: US$ 17.6 billion. He is 43 years old and is the CEO of the company.

• Daniela Amodei: US$ 17.7 billion. She is 44 years old and chairs the company and its board of directors.

• Sam McCandlish: US$ 17.8 billion. He is 36 years old and is the chief architect.

• Jack Clark: US$ 17.8 billion. He is 38 years old and is the director of public benefit.

• Jared Kaplan: US$ 17.8 billion. He is 42 years old and is the chief scientist.

• Chris Olah: US$ 17.8 billion. He is 34 years old and is in charge of interpretability research.

• Tom Brown: US$ 17.9 billion. He is 39 years old and leads the computing area.

The estimates exceed the net worths of between US$ 14.1 billion and US$ 14.3 billion calculated in May, when a private funding round valued Anthropic at US$ 965 billion.

What will happen to the control of Anthropic after the IPO

The seven founders have committed to allocate 80% of their personal stakes to philanthropic initiatives. However, the prospectus for the IPO clarifies that these agreements can be revoked and do not constitute legally binding obligations.

In terms of corporate governance, the founders collectively control one share without economic rights that concentrates 50.1% of the shareholder votes. Additionally, the Long-Term Benefit Trust, an independent body, has the authority to appoint and remove the majority of the board members.

The document also revealed a confidential succession system. Each co-founder can designate up to ten successors to exercise the voting rights associated with that 50.1%.

The revenues, losses, and investments of Anthropic

The latest S-1 form submitted by the company reported that Anthropic recorded revenues of US$ 33.2 billion and a net loss of US$ 104 billion during the first nine months of 2026. The company attributed most of the negative result to the increase in the value of the convertible debt issued to its investors, whose accounting cost rises along with the company's valuation.

The filing also detailed investment commitments nearing US$ 1 trillion in chips and data centers by 2045. A significant portion is linked to agreements signed with shareholders such as Google, Amazon, Microsoft, and Broadcom.

Another piece of information included in the document is that Claude generated more than 90% of the code developed by Anthropic during September. The company itself described this dependence on its model as a structural advantage, but also as a potential security risk.

Who founded Anthropic and what is happening with OpenAI

Anthropic was founded in 2021 by seven former employees of OpenAI, the company behind ChatGPT. Its main competitor is also approaching a potential market debut, although it has decided to postpone that step until 2027.

According to Bloomberg, OpenAI closed a funding round of US$ 11 billion that raised its valuation to US$ 1.25 trillion. Anthropic's operation, meanwhile, would come about five months after SpaceX's IPO, whose fully diluted market capitalization was around US$ 1.8 trillion.

How much money does Anthropic expect to raise with its IPO

The company plans to place 801 million shares on Nasdaq and offer another 351 million shares through a private placement. If the price stays at the midpoint of the announced range, it expects to raise around US$ 85 billion.

Additionally, each of the seven co-founders plans to sell 3.4 million shares, for an approximate value of US$ 250 million before taxes. Each retains a stake of about 1.3% in the company, which represents virtually their entire net worth.

The transactions of Dario and Daniela Amodei are the only public stock sales by the founders so far. Both had to disclose their transactions in the offering prospectus due to their executive positions: Dario as CEO and Daniela as chairwoman of the company.