Anthropic seeks $64.4 billion in IPO at $70–$78 a share

The listing arrives as Anthropic CEO Dario Amodei has been among the AI leaders publicly calling for top labs to "pace the frontier" and prioritize safety, a stance that has made the speed of AI development increasingly controversial. How investors price that tension into the offering will shape the outcome.

The share count in the filing is split between new stock from the company and stock sold by existing backers, with Anthropic offering 801.4 million shares against 23.6 million from backers. That mix means the listing is both a capital raise for the company and a chance for early investors to sell. At the top of the range, the filing points to a market value of about $1 trillion based on shares outstanding, a figure that will be tested as the offering is marketed to investors.