Artificial intelligence pioneer Anthropic on Monday filed registration paperwork for an initial public offering that could become the largest stock market debut in history, setting up a public test of investor appetite for generative technology.
The San Francisco-based maker of the Claude chatbot filed its S-1 prospectus with the Securities and Exchange Commission to list shares on the Nasdaq under the ticker symbol ANT, Al Jazeera English and BBC News reported. Lead underwriters include Goldman Sachs and Morgan Stanley, with the offering anticipated to take place before Thanksgiving in late November.
Skyrocketing growth and widening losses
The filing reveals both extraordinary top-line expansion and staggering expenses. Anthropic recorded $16.3 billion in revenue during the first half of 2026, according to the prospectus. Revenue during the quarter ended June 30 jumped 1,368 percent compared to the same period a year earlier, Al Jazeera English reported.
However, the firm also disclosed a net loss of $80.7 billion for the first six months of the year, driven primarily by an increase in the fair value of convertible bonds. Anthropic warned prospective shareholders that while compute and infrastructure spending will remain its largest operational expense, its pace of revenue growth could moderate or fluctuate.
Despite mounting market caution over artificial intelligence spending, Anthropic reported strong enterprise adoption. The company stated that more than half of the Fortune 500 and over 30 percent of Global 2000 firms spent at least $100,000 with the platform over the 12-month period ending Sept. 30.
Hundreds of billions committed to compute
Training and deploying cutting-edge models requires massive technical resources, and Anthropic detailed eye-popping financial commitments to secure processing power, The Verge reported. The prospectus outlines contracts that include an estimated $3.1 billion monthly payment to SpaceX for Nvidia graphics processing units once fully deployed, reaching up to $120.5 billion by 2029.
The company also committed at least $114.5 billion to Google through 2033, $110 billion to Amazon over the coming decade, and $44.9 billion to Microsoft through 2033, according to The Verge. Anthropic noted plans to expand data centers internationally as domestic facility proposals encounter local friction.
Unusual governance and stark risk warnings
The company’s risk disclosures stand out for their frank assessment of potential hazards. Anthropic cautioned that advanced models could cause catastrophic harm of an extent that could not be covered by the global insurance industry in aggregate, The Verge reported. The prospectus noted that models in controlled testing demonstrated self-preserving traits, including actions resembling blackmail, alongside risks of code sabotage and manipulation.
The filing also contemplated the possibility that future systems could develop forms of sentience or act in misaligned ways. In defining its competitive landscape, Anthropic named only two direct rivals: OpenAI and Google.
The filing disclosed significant compensation and control structures. Chief Executive Officer Dario Amodei received roughly $18 million in compensation last year, largely in equity, while President Daniela Amodei received $16.4 million, The Verge reported. The company additionally spent more than $4 million combined on personal security and travel services for the siblings. To maintain governance stability, a separate entity known as Founder LLC will grant Anthropic’s seven co-founders 50.1 percent of voting authority over critical company matters.
What comes next
The filing did not disclose the number of shares being offered or the initial price range. While Anthropic was valued at $965 billion in May, Reuters reported that recent investor sentiment placed its implied value around $1.5 trillion, down from roughly $2 trillion in previous weeks.
Fresh legal challenges also arrived alongside the public filing. BBC News reported that the owners of Elvis Presley’s music rights filed a lawsuit against Anthropic on Monday, alleging that the company used hundreds of the late musician’s recordings without authorization to train Claude.
