Anthropic, the artificial intelligence company behind the Claude chatbot, filed publicly for an initial public offering on Monday, setting up what could be one of the biggest IPOs ever, NPR reported.

The company plans to list Class A shares on the Nasdaq Global Select Market under the ticker "ANT," it said in a statement. The number of shares and the price range have not been set. Goldman Sachs and Morgan Stanley are leading the offering.

The filing shows a company spending at enormous scale. Anthropic owes its providers about $417 billion in future payments for computing power, covering data centers, the hardware inside them and cloud services, CNBC reported. A single agreement with SpaceX will cost roughly $3.1 billion a month for access to Nvidia-powered capacity once it is fully delivered.

Subscriptions generated $3.2 billion in the first half of 2026, or about 20% of total revenue, according to CNBC. Revenue from outside the United States topped $4.5 billion over the same period.

Public shareholders will have limited say. An entity controlled by Anthropic's seven co-founders will hold a single Class F share carrying 50.1% of the vote on most shareholder matters, according to the filing. A separate body, the Long-Term Benefit Trust, generally elects a majority of the board. That structure makes Anthropic a "controlled company" under Nasdaq rules.

Anthropic first submitted a confidential draft to the Securities and Exchange Commission in June.

Wall Street welcomed the news. Chipmakers rallied as the filing revived enthusiasm for the AI trade, Bloomberg reported. At Monday's close, the iShares Semiconductor ETF was up nearly 3%, Nvidia had gained 2.4% and the S&P 500 had risen 0.7% to 7,676.77.

Investors now face a crowded week. Several big tech companies report earnings, and the Federal Reserve announces its next interest rate decision.