Anthropic’s seven co-founders to sell $1.75 billion of stock in IPO, about $250 million each

The Anthropic founders share sale will see all seven co-founders, including chief executive Dario Amodei and president Daniela Amodei, cash out about $1.75 billion of stock in the IPO, according to an updated prospectus reported by Trending Topics on 11 November 2026, citing Bloomberg. Each founder is offering nearly 3.4 million shares, worth about $250 million before tax at the $74 midpoint of the $70 to $78 range for the Nasdaq listing of Anthropic. 1

What happened

The prospectus names Dario Amodei, Daniela Amodei, Tom Brown, Jack Clark, Jared Kaplan, Sam McCandlish and Christopher Olah as sellers, Dataconomy reported. Each is selling about 1.5% of their stake. Existing shareholders are selling 23,648,646 shares in total, and Anthropic receives none of those proceeds, Dataconomy said. 2

The sale comes as bankers push for a higher price. The Financial Times reported that bankers on the deal want a valuation above $1.5 trillion, according to ZeroHedge and Trending Topics. Trending Topics calculated that an offering price of about $83 a share would lift each founder’s sale to about $283 million, or about $2 billion combined. It also reported, citing the FT, that institutional orders covered the whole 825 million share offering on the first day of the roadshow. 3

Key numbers

• Combined sale: about $1.75 billion across seven co-founders, from the updated prospectus (Trending Topics).
• Per founder: nearly 3.4 million shares, about $250 million at the $74 midpoint (Dataconomy).
• Net worth after the sale: about $18 billion each, according to the Bloomberg Billionaires Index as cited by Dataconomy.
• Offering: 825 million Class A shares under the ticker ANT, with up to $90.4 billion raised including a $26 billion placement to partners such as Google and Nvidia (Dataconomy).
• Control: one Class F share held by an entity controlled by the founders carries 50.1% of voting power on most shareholder matters (Dataconomy).

Who the Anthropic co-founders are

All seven left OpenAI in 2020 to start Anthropic, Trending Topics reported. Dario and Daniela Amodei lead the company, which has grown into one of the most valuable names in artificial intelligence. Our earlier story on the Anthropic IPO price range covers the filing that set the $70 to $78 band. Compute partners including Google and Nvidia are among the buyers of the private placement that closes only if the IPO does. The company also launched Claude Sheets and Meetings this week, a product push we covered in our report on the Microsoft stock drop after the Claude Sheets launch.

What it means for the founders’ fortunes

Trending Topics reported that, at a valuation of up to $1.4 trillion, each co-founder’s stake is worth about $18 billion, up from about $14 billion after the May funding round at $965 billion. It said each Amodei received a cash salary of about $650,000 last year, per the prospectus, and that the founders have pledged to give away 80% of their stakes, a pledge the prospectus describes as revocable and not legally binding.

Trending Topics cited Jay Ritter of the University of Florida as calling the founder sales high but not alarming, and pointing to founder sales in Google’s 2004 IPO.

What happens next

The IPO is scheduled to price on Wednesday 18 November, with trading expected to begin on Thursday 19 November, Dataconomy reported. Any move in the price changes the Anthropic founders share sale proceeds directly, and the FT report suggests the pressure is upward. Dataconomy added that some non-founder insiders can sell 10% of their holdings on the first trading day, followed by about 23 further release dates over the first year.