Anthropic Files IPO Prospectus After Quarterly Revenue Reaches $11.6 Billion
Key Facts
Anthropic said on October 26 that it had filed a registration statement with the U.S. Securities and Exchange Commission ahead of a Nasdaq listing of its Class A shares under the ticker ANT. The company did not specify how many shares it would offer or a price range, leaving the deal size and financial terms for a later stage. The filing comes as the company’s revenue accelerates, but its quarterly data show net losses widening alongside sales growth. Revenue rose to about $11.6 billion in the quarter ended June 30, 2026, from $4.73 billion in the previous quarter, according to Reuters. Over the same period, net loss increased to $66.3 billion from $14.4 billion, putting growth and the bottom line at the center of disclosures investors are reviewing.
The company attributed a large part of its net loss to an increase in the fair value of convertible notes into its shares, according to Reuters. That means the widening loss was largely tied to changes in the value of those notes, rather than operating expenses alone. Quarterly figures show revenue more than doubled between the two quarters cited, while net loss also surged. This divergence made disclosure of the nature of the loss items important to understanding the published accounts as the offering process begins. The filings thus place accelerating demand for Anthropic’s services alongside the cost of financing its expansion and its financial obligations.
The company’s growth is underpinned by an expanding base of high-spending enterprise customers. TechCrunch reported that the number of customers each generating at least $100,000 in annual revenue exceeded 11,900 as of September 30, 2026. The number of customers at the $1 million annual threshold was more than 1,900, while those generating $10 million or more totaled about 250. Anthropic attributed the expansion in spending to broader use of Claude within enterprises and said that momentum was associated with a net revenue retention rate of about 900% at the end of the third quarter. These indicators reflect increased spending by existing customers as well as a broader base of companies buying its services.
But expanding the computing capacity needed to meet demand puts infrastructure commitments at the center of the company’s calculations. Reuters reported that Anthropic expects to spend at least $518 billion on AI infrastructure with six partners over a decade. The prospectus reviewed by the agency said about 80% of that amount is non-cancelable or payable regardless of usage levels. The size and duration of the commitments indicate that spending will remain tied to the company’s ability to use the infrastructure it contracts for, even as demand changes. Reuters also said market volatility and rising borrowing costs have heightened investor concerns about financing expansion in the AI sector.
The governance arrangements outlined in the prospectus give the founders broad voting control after the listing. TechCrunch reported that an entity representing the seven founders will collectively hold 50.1% of shareholder voting power. The Long-Term Benefit Trust also has the authority to appoint a majority of the board, according to the same source. Investors will weigh these powers against revenue growth, losses and capital commitments. In May 2026, the company raised $65 billion in a funding round at a post-money valuation of $965 billion, according to its announcement. Anthropic said at the time that its annualized run rate revenue exceeded $47 billion that month, a yearly measure calculated from the pace of revenue at the time.
Major U.S. stock indexes were higher in morning trading on October 26, with the S&P 500 up 0.5%, Reuters reported. The agency added that U.S. stock futures received a brief boost following the prospectus filing. The Associated Press said the potential offering could test investor appetite for AI companies at a time of mounting concern over the sector’s huge financing needs and after technology companies withdrew plans to go public. The agency reported that SpaceX’s June 2026 offering raised $86 billion, a record, potentially setting a benchmark for the size of Anthropic’s deal. It also said the offering could raise as much as $100 billion, according to reports, though the final proceeds remain uncertain.
Reuters expected Anthropic to offer its shares before Thanksgiving, though the registration statement did not set a deadline. Subsequent disclosures will clarify the number of shares, the price range and the targeted proceeds, details the company did not announce in its filing statement. Until they are published, the deal’s valuation remains separate from that of the private funding round closed in May. The company is presenting investors with a trajectory combining revenue growth, an expanding enterprise customer base and huge infrastructure spending commitments. The offering terms disclosed later will also set out the direct financial framework to be presented to the market.