Anthropic launches IPO roadshow with 825 million shares at $70–78 each

Anthropic opens its IPO roadshow

Anthropic, PBC has officially opened the roadshow for its planned initial public offering, starting the investor marketing process that precedes a Nasdaq listing under the ticker ANT. According to the company's announcement, the deal covers 825,000,000 shares of Class A common stock with an expected price of between $70.00 and $78.00 per share.

The move takes one of the most closely watched AI labs from the private fundraising circuit to the public markets, and the size of the transaction is exceptional even by the standards of recent mega-listings.

How the offering is structured

Of the 825 million shares on offer, Anthropic itself is selling 801,351,354 shares, while a group of existing stockholders is selling 23,648,646 shares. Anthropic will receive no money from the stockholders' portion, which means roughly 97 percent of the deal is primary stock whose proceeds flow back into the company rather than to early investors cashing out.

The company also expects to give underwriters a 30-day option to buy as many as 123,750,000 additional shares, the customary over-allotment mechanism used to stabilize a newly listed stock.

The implied scale

At the stated range, the base offering implies gross proceeds of roughly $57.8 billion to $64.4 billion before fees. If the underwriter option is exercised in full, the total climbs to approximately $66.4 billion to $74.0 billion. Taken together, those figures would rank the deal among the largest initial public offerings ever attempted, and the fact that nearly all of it is new capital indicates Anthropic is listing primarily to fund its own operations.

Listing and regulatory mechanics

Alongside the price range, Anthropic confirmed it has applied to trade its Class A shares on the Nasdaq Global Select Market under the symbol ANT. Requests for the preliminary prospectus are directed to Goldman Sachs & Co. LLC and Morgan Stanley & Co. LLC, the banks named in the announcement.

The filing carries the usual regulatory caveats: the registration statement covering the shares has been submitted to the U.S. Securities and Exchange Commission but has not yet taken effect, meaning the stock cannot be sold, and offers to buy cannot be accepted, until it does. Anthropic also noted that its announcement does not itself constitute an offer to sell or a solicitation of an offer to buy.

Why it matters

Anthropic is among the first major frontier-model builders of its generation to attempt a public listing, and this deal will be a direct test of whether public-market investors are willing to underwrite the enormous capital intensity of frontier AI development. Because almost the entire offering is primary stock, most of the money raised will land on Anthropic's own balance sheet to fund compute, research and operations, rather than providing an exit for early backers.

Two further details make the listing unusually interesting. First, Anthropic is a public benefit corporation, and its debut will test whether mission-oriented commitments can coexist with quarterly shareholder scrutiny at scale. Second, where the deal ultimately prices — inside, above or below the $70-to-$78 range — will be read across the industry as a referendum on private AI valuations, and as a reference point for every other AI company weighing its own path to the public markets.