Anthropic, the AI research company behind the Claude family of models, has confidentially filed a draft Form S-1 with the SEC, a formal step toward a potential public offering in late 2026. The filing, submitted on June 1, 2026, puts Anthropic on the short list of the most consequential tech listings in recent memory.
The context here matters. Anthropic’s annualized revenue run rate surpassed $47 billion by late May 2026, suggesting it has already figured out how to turn frontier AI research into a functioning business at serious scale.
The numbers behind the filing
Before the S-1, Anthropic closed a Series H funding round worth $65 billion in May 2026. That round pushed its post-money valuation to $965 billion, putting it within arm’s reach of a trillion-dollar market cap before it ever trades on a public exchange.
Major institutional backers include Google, which holds an estimated 14% stake, alongside Amazon, Microsoft, and Nvidia. The timing of the actual offering is not locked in. It remains contingent on SEC review and broader market conditions.
