Anthropic files to go public as ANT. Its $80.7bn loss is mostly paper
Claude's maker filed its S-1 with the SEC for a Nasdaq listing. First-half 2026 revenue was $16.3bn and the net loss $80.7bn, of which $72.4bn is a fair-value change on convertible notes. The operating loss was $693m.
Anthropic, the company behind the Claude assistant, filed to go public on Monday. Its shares will trade on Nasdaq under the ticker ANT, with Goldman Sachs and Morgan Stanley running the deal. How many shares, and at what price, is still blank: the company’s announcement leaves both numbers out.
Everything else is in the prospectus. One figure jumps off the page.
An $80.7bn loss
In the first half of 2026 Anthropic booked a net loss of $80.7bn. That is nearly double what it lost in the whole of 2025 ($42bn).
Read the S-1 filed with the SEC a little more slowly, though, and the picture changes. Of that $80.7bn, $72.4bn comes from the change in fair value of convertible notes, derivatives and SAFEs. Put simply, the company became worth a great deal more, so the debt that converts into its shares became worth more too, and accounting rules make it book the difference as a loss. No cash left the building.
The operating loss, which is the one that measures the business itself, was $693m. A year earlier it was $2.1bn.
Revenue went vertical
The other half of the chart is the part investors will read first. Anthropic took in $41m in 2023, $386m in 2024 and $4.6bn in 2025. The first six months of this year alone brought $16.3bn, against $1.2bn in the same stretch of 2025.
Big customers drive much of it. Accounts spending more than $100,000 a year went from over 600 to over 6,000 between June 2025 and June 2026, and they now make up 74% of revenue. The company itself warns that it does not expect growth at this pace to continue.
Who is in charge after the float
Anthropic is a Delaware public benefit corporation, legally required to weigh shareholder returns against its goal of developing AI responsibly. An independent body, the Long-Term Benefit Trust, holds a special Class T share that lets it elect a majority of the board, with no economic rights attached. That is why Nasdaq will treat it as a “controlled company”.
OpenAI has been working towards a listing of its own. Anthropic got its paperwork in first. The date and the price arrive only once the SEC registration becomes effective, and until then not a single share can be sold.
By Beatriz Mota
Chart: Tugadaily, using data from Anthropic's S-1 filing (SEC)