Anthropic, the artificial intelligence company behind the Claude family of models, has publicly filed for an initial public offering on Nasdaq, setting the stage for what could become one of the largest stock market debuts in history.
The San Francisco-based company filed its registration statement, known as an S-1, with the US Securities and Exchange Commission on 26 October and applied to list under the ticker symbol ANT. The listing is expected later this autumn, with Goldman Sachs and Morgan Stanley leading the offering.
The filing provides the first detailed public look at the finances of one of the world's most valuable private technology companies, and it reveals a business growing at an extraordinary pace.
Revenue Surges
Anthropic reported revenue of $16.3 billion for the first half of 2026, compared with $4.6 billion for the whole of 2025. Revenue in the second quarter alone reached $11.6 billion, up from $4.7 billion in the first quarter.
The company cited its developer and enterprise products, including Claude Code, its AI coding tool, and Claude Cowork, as major drivers of growth. Businesses have increasingly adopted AI tools for software development, customer service, research and other tasks, and coding has emerged as one of the most commercially successful applications of large language models.
The company had about 5,300 employees as of 30 September, implying revenue per employee of more than $6.6 million, up from about $1.4 million a year earlier.
Operating Profit, Net Loss
The filing shows a business moving towards operating profitability. Anthropic reported operating income of $974 million in the second quarter, after an operating loss of $1.7 billion in the first quarter. Compute costs, the largest expense for AI developers, rose to $5.6 billion in the second quarter from $3.4 billion, but revenue grew much faster.
At the bottom line, however, the company reported a net loss of $80.7 billion for the first half of 2026, compared with $42 billion for 2025. The gap between near-breakeven operating results and the very large net loss indicates that most of the loss arose from items below the operating line, rather than from day-to-day operations; investors will scrutinise the filing's detailed accounts to understand the drivers.

Massive Compute Commitments
The filing underscores the enormous infrastructure requirements of frontier AI. Under what it calls the "SpaceXAI Arrangements", Anthropic has agreed to spend up to $120.5 billion on computing capacity through 2029, equivalent to roughly $3.1 billion a month once all capacity is delivered, which is expected by December 2026.
The company is also leasing its own data centres through an initiative it calls "Anthropic Direct", which it expects to account for a growing share of its compute investment. On the same day as the filing, Reuters reported that Wall Street banks and Blackstone had lined up $63 billion to finance Broadcom AI chips and networking equipment to be leased to Anthropic.
Valuation Expectations
Anthropic was valued at $965 billion in a private funding round in May. Reports suggest the IPO could value the company at between $1.5 trillion and $2 trillion, which would place it among the most valuable listed companies in the world on its first day of trading. The size of the offering and the number of shares to be sold have not yet been disclosed.
The listing would follow a period of extraordinary private fundraising by AI companies, as investors have poured hundreds of billions of dollars into model developers and the infrastructure that supports them.



