Anthropic files publicly for IPO that could be among the largest ever
Written by AI from kuow.org's report. Not checked by a person.
Anthropic has filed its public Form S-1 with the SEC for an IPO under the ticker ANT, which reports say could value it at $1.5 trillion to $2 trillion. The listing could happen as soon as November.
Anthropic, maker of the Claude AI models, filed final paperwork with regulators on Monday, October 26, 2026, for an initial public offering under the ticker symbol ANT. Reports have said the listing could value the company at between $1.5 trillion and $2 trillion, which would put it alongside SpaceX, valued at around $1.8 trillion when it listed in June. The prospectus did not say how many shares will be offered or at what price range. The IPO could happen as soon as November.
In the filing, Anthropic said its revenue in the first half of the year rose 1,300% to $16.3 billion. Its adjusted operating income reached $1.6 billion, compared with a loss of $1.8 billion a year earlier. The company has yet to turn an annual profit and reported a loss of nearly $81 billion from January to June, up from $13 billion in the same period last year. Its last private fundraising round, in May, put its post-money valuation at $965 billion.
The filing comes during a volatile stretch for AI stocks, with investors torn between enthusiasm and worries about safety, heavy spending and a possible bubble. The S-1 lists risks including AI models advancing faster than the company can keep them safe, and political backlash over its policy views. Anthropic is also in a dispute with the Pentagon, which labeled it a "supply chain risk" after it refused to allow use of its AI for autonomous weapons and mass surveillance of Americans. Anthropic has sued, and the cases are ongoing. OpenAI's own IPO plans are temporarily on hold, after Sam Altman ruled out a listing this year.
