Anthropic sets $70–$78 IPO range, seeking a valuation above $1 trillion

Anthropic’s seven co-founders each plan to sell enough shares in its proposed IPO to receive roughly $250 million at the price-range midpoint, while retaining voting control together. The newly disclosed sales would give every founder the same payout—not shift control to public investors—according to TechCrunch’s account of the company’s S-1 filing.

Each founder intends to sell 3,378,378 shares. Anthropic has proposed an initial public offering price of $70–$78 per share, making the eventual sale price the variable that determines their proceeds. The filing describes planned transactions: these are potential payouts from the offering, not money the founders have already received.

At the $74 midpoint, each sale would generate just under $250 million. The lower end would produce just over $236 million per founder; the upper end would yield just under $264 million. Those figures describe the value of the shares being sold, rather than the value of each founder’s entire remaining holding.

After the sale, each founder would own about 3.2% of the outstanding Class A shares, or roughly 22% collectively. That percentage has a specific denominator: Class A stock. It is not the founders’ combined ownership of Anthropic across every share class, a distinction that changes how the remaining stake should be read.

Other holders, including Amazon and Google, own nonvoting Class N shares. Including those shares makes the founders’ portion of total company equity considerably smaller than their Class A percentage. Economic ownership and the right to vote therefore cannot be inferred from the Class A figure alone.

Voting power follows a different arrangement. Each founder would also receive one Class F share carrying supervoting rights, giving the seven a collective 51.1% of the votes. No individual founder would hold significantly more shares or votes than the others. The controlling position belongs to the group, rather than one dominant founder.

Dario Amodei, chief executive.

Daniela Amodei, president and board chair.

Tom Brown, chief compute officer.

Jack Clark, head of public benefit.

Jared Kaplan, chief science officer.

Sam McCandlish, chief architect.

Christopher Olah, interpretability research lead.

The seven left OpenAI and formed Anthropic in 2021 after disagreements with OpenAI’s leadership over how AI should be built. Dario and Daniela Amodei, siblings who held senior research and policy roles at OpenAI, were joined by five colleagues from the company.

The filing also includes buying interest from two board members. Reed Hastings indicated that he wants to purchase $300 million worth of shares through his donor-advised fund. Christopher Liddell indicated interest in buying $3 million worth, according to TechCrunch.

Anthropic’s planned stock-market debut is drawing attention to two questions beyond its opening price: how easily customers can leave, and whether safety commitments can withstand financial pressure. In a November 10 expert pitch, University of Maryland business-school faculty offered contrasting perspectives on the competitive and governance challenges surrounding the proposed IPO.

The commentary follows Anthropic’s October 26 filing of papers setting up a November stock-market debut, according to an Associated Press article published by The Washington Post. That was a step toward an initial public offering—the first sale of stock to public investors—not a completed share sale.

The newer commentary comes from the University of Maryland’s Robert H. Smith School of Business, which published the release on Newswise to offer faculty for interviews.