Anthropic IPO: AI maker files to sell stock publicly

Anthropic filed for an initial public offering on Monday, moving the San Francisco artificial intelligence firm closer to a Wall Street debut next month. The move positions the maker of the Claude chatbot to potentially eclipse the record $86 billion raised by SpaceX in June. If successful, the deal could make Anthropic the largest stock sale in history.

The filing sets the stage for a high-stakes race with rival OpenAI, which is also expected to go public soon. Anthropic listed its plans for the Nasdaq Global Select Market and selected the ticker symbol ANT. The company’s five-year history is set to conclude with a major public launch, a milestone that could reshape the valuation of the AI sector.

CEO Dario Amodei made the filing weeks after publishing an essay advocating for a slowdown in the development of advanced AI models. He warned that such technology could pose an existential threat to humanity. Despite these cautionary remarks, the company is moving forward with a capital raise that could provide massive resources for expansion.

Regulatory documents reveal that Anthropic’s financial position remains in the red. The company reported a net loss of $80.7 billion in the first half of 2026. This figure represents a sharp increase from the $13 billion loss recorded in the same period a year earlier. The documents indicate rapid revenue growth, yet the firm has not yet achieved profitability.

Private investors valued Anthropic at $965 billion earlier this year. Reports suggest the public offering could push that valuation to $1.5 trillion or as high as $2 trillion. At the lower estimate, the company would join Tesla among the most valuable public firms globally. The final price and valuation have not yet been determined.

The offering could generate up to $100 billion in new capital. Such a sum would break the current record for a single stock sale. The proceeds would likely flow into accelerating the company’s expansion and R&D efforts. The deal also stands to significantly increase the personal wealth of co-founders Dario Amodei and his sister Daniela by billions of dollars.