Anthropic, the company behind Claude, has filed papers to sell shares on the Nasdaq stock market under the ticker "ANT". The filing is a Prospectus A long official document a company files before an IPO, explaining its business, money and risks. In the US it is called an S-1. of about 335 pages, and it is the first close look at the company's real numbers. Reports say the IPO An initial public offering: the first time a private company sells its shares to anyone on a stock market. could happen as early as mid-November.
Key points
- In September, Claude wrote more than 90% of the code changes made at Anthropic. Engineers now mostly give Claude instructions and check its work, like supervisors.
- Sales in the first half of 2026 were about 14 times higher than a year earlier. Existing customers spent about 9 times more than the year before. That is a Net revenue retention How much existing customers spend this year compared with last year. Over 100% means they are spending more. of about 900%.
- Staff grew about 2.7 times in a year, to about 5,300 people. The filing again promises never to show ads inside Claude chats.
- Anthropic is a Public benefit corporation A type of US company that must weigh the good of the public, not only profit for shareholders., so it must weigh the public good, not just profit. A separate trust picks most board members, and the seven co-founders keep 50.1% of the votes.
- More than 90 pages list risks, from AI that could harm people to cheap open-weight models from China. Hello China Tech compared it with Chinese labs Zhipu and MiniMax: Anthropic's Gross margin The share of each sale left after paying the direct cost of making it. For AI firms that cost is mostly computer power. is near 85%, far above theirs.
Why it matters: This is the first time the public can see inside a top AI lab's business. It shows AI companies already use their own AI to build most of their software.
Sources (8)
- Anthropic files S-1 for a Nasdaq IPO under ANT (Japanese) · BRIDGE
- Anthropic's prospectus: AI as existential risk, 90% of code by Claude (Japanese) · ITmedia
- How China risk factors loom over Anthropic's IPO filing · South China Morning Post
- Anthropic's S-1 set against Zhipu and MiniMax · Hello China Tech
- Anthropic publishes its 335-page prospectus (Chinese) · QbitAI
- Anthropic reaffirms no ads in Claude in its IPO filing (Chinese) · IT Home
- AINews: Anthropic files its S-1 · Latent Space
- 4 Questions for AI This Week · The AI Daily Brief
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