- Anthropic filed an S-1 with the SEC; shares are to list on Nasdaq under the ticker ANT.
- H1 2026 revenue: $16.3bn versus $1.2bn a year earlier; first operating profit in Q2 ($1.0bn).
- The top five customers make up about 25% of revenue.
In short: on 26 October 2026 Anthropic, the maker of the Claude models, announced that it has filed an S-1 with the US SEC, the application for its initial public offering. Class A shares are to list on Nasdaq under the ticker ANT. The number of shares and the price have not been set. Goldman Sachs and Morgan Stanley are leading the offering.
What the prospectus says
- Revenue in the first half of 2026: $16.3bn, versus $1.2bn a year earlier.
- Q2 2026: $11.6bn in revenue and the first operating profit, $1.0bn (an 8% margin). A year earlier it was a $1.2bn loss.
- More than 11,900 customers pay at least $100K a year, more than 1,900 at least $1M, and about 250 at least $10M.
- No customer exceeds 10% of revenue, but the top five account for about 25% (nine months of 2026). That is clear customer concentration.
- The company has several share classes, and an independent Long-Term Benefit Trust can elect and remove a majority of the board.
What to watch
The prospectus describes large commitments for compute and infrastructure, but in the version I read the total amount is still left blank. Media outlets quote estimates, but I did not find them in the document itself. Risks the company lists: some large customers have no long-term contracts, and copying of models (distillation) could erode its lead.
How to read this
This is a document written ahead of selling shares, so the company presents itself in a good light, but it is legally liable for errors in the prospectus. For businesses building on Claude, the key point is that the supplier now makes money from operations while locking itself into costs for years. I write about choosing AI suppliers for a business in the AI in business hub.