AI & Technology

Anthropic Confidentially Files for IPO — Claude Maker Enters Public Market Race After $65B Funding

AI giant Anthropic submits draft S-1 to SEC for initial public offering, providing option to go public after SEC review; company raised $65B Series H at $965B post-money valuation just days ago

By 19Network Editorial Team · Jun 3, 2026 · 5 min read

Anthropic AI logo with Claude chatbot interface and SEC building in background showing IPO confidential filing announcement

Anthropic, the artificial intelligence company behind the chatbot Claude, has confidentially filed on Monday for an initial public offering, setting the stage for what could become one of the largest tech IPOs in history.

Anthropic has confidentially submitted a draft S-1 registration statement to the Securities and Exchange Commission, marking a significant step toward the maker of the Claude chatbot launching on the stock market. The confidential filing allows Anthropic to gather feedback from regulators before it submits a public filing with the U.S. Securities and Exchange Commission, providing flexibility in timing for the public market debut. The filing comes just days after Anthropic raised $65 billion in a funding round that valued the company at $965 billion post-money, making it the world's most valuable private AI company and surpassing OpenAI's $852 billion private market valuation for the first time. This massive Series H funding round included participation from Sequoia, Dragoneer, Altimeter, and Greenoaks, with Microsoft, NVIDIA, Founders Fund, and General Catalyst also participating as major investors. A confidential filing provides Anthropic with strategic advantages, including the ability to test investor appetite without immediately committing to public markets. The company can use the SEC review period to refine its business model and financial projections before going public,…