Anthropic files confidentially for initial public offering, valued at close to $1 trillion

Anthropic submitted a draft registration statement to the U.S. Securities and Exchange Commission for a proposed initial public offering, the company announced Monday. The filing comes after Anthropic raised $65 billion in a Series H funding round that pushed its valuation to $965 billion.

A confidential IPO filing allows a company to prepare for a potential public offering without publicly disclosing detailed financial information or internal business details. If the company proceeds, it will file an S-1 registration document containing detailed financial information, legal matters, and voting power breakdown.

Anthropic's revenue run-rate has surpassed $47 billion, up from $9 billion at the end of 2025. The company previewed its Mythos model in April but has kept access restricted, citing thousands of high-severity bugs that need fixing before public release.