TL;DR: The Anthropic IPO is officially in motion. On October 26, 2026, the company behind Claude filed a public Form S-1 with the US Securities and Exchange Commission and said it plans to list Class A shares on the Nasdaq under the ticker “ANT.” The share count and price range are not set yet. According to CNBC’s reading of the filing, Anthropic made $16.29 billion in revenue in the first half of 2026 but booked an $80.7 billion net loss, mostly from accounting charges tied to its rising valuation. Goldman Sachs and Morgan Stanley lead the deal.
The Anthropic IPO went from rumor to paperwork on Monday. In a short announcement, Anthropic, PBC said it had filed a registration statement for a proposed initial public offering of its Class A common stock. The prospectus itself is where the interesting details live, and reporters at CNBC have been working through it all day. Here is what the filing says, what it does not say yet, and why it matters for the wider AI market.
What Anthropic actually announced
Anthropic’s own statement is brief and legal in tone. The key points:
- Exchange and ticker: Anthropic intends to list on the Nasdaq Global Select Market under the symbol “ANT.”
- Pricing: the number of shares and the price range “have not yet been determined.”
- Banks: copies of the preliminary prospectus will be available from Goldman Sachs and Morgan Stanley.
- Status: the registration statement has been filed but “has not yet become effective,” so no shares can be sold yet.
CNBC reports that Anthropic first filed confidentially with the SEC in June, which gave regulators time to review its financials before they became public. CNBC also lists 20 other banks in the underwriting group, including JPMorgan, Citigroup and Barclays, with Goldman Sachs in the lead-left position.
The numbers in the Anthropic IPO filing
The S-1 gives the public its first audited look at how fast Claude’s business has grown. The figures below come from CNBC’s live coverage of the filing.
| Metric | Figure reported in the S-1 (via CNBC) |
|---|---|
| Revenue, six months to June 30, 2026 | $16.29 billion, up 1,304% from $1.16 billion a year earlier |
| Revenue, full year 2025 | $4.59 billion, up 1,089% |
| Net loss, first half of 2026 | $80.7 billion (vs. $12.9 billion in the first half of 2025) |
| Net loss, full year 2025 | About $41.9 billion (vs. $8.3 billion in 2024) |
| Consumption-based revenue, H1 2026 | $13.1 billion, or 80% of revenue |
| Subscription revenue, H1 2026 | $3.2 billion, or 20% of revenue |
| Employees, Sept. 30, 2026 | 5,300 (vs. 940 at the end of 2024) |
Why the loss is so large
An $80.7 billion half-year loss looks alarming next to $16 billion of revenue, but Anthropic says the total “largely reflects accounting charges related to changes in the value of convertible notes,” caused by increases in its enterprise valuation. In other words, the company’s own rising price tag made some of its financing instruments more expensive on paper. That is different from spending $80 billion in cash, though investors will still study the operating costs closely.
Who is paying for Claude
Anthropic says that, as of September 30, it had more than 11,900 customers generating $100,000 or more in trailing twelve-month revenue, more than 1,900 at $1 million or more, and roughly 250 at $10 million or more. No single customer accounted for more than 10% of revenue in the first nine months of 2026, though Anthropic said five customers made up about a quarter of it.
The company also claims some eye-catching internal stats: $6.6 million in revenue per employee over the trailing twelve months, and more than 90% of contributions to its codebase in September “written by Claude,” per CNBC.
Big compute bills and big partners
Training and running frontier models is expensive, and the S-1 puts numbers on some of those commitments. According to CNBC:
- SpaceX: Anthropic will pay around $3.1 billion per month for compute powered by Nvidia GPUs once all promised capacity is delivered, with total spending of up to $120.5 billion over a period running into 2029.
- Microsoft: a modified agreement means Anthropic now intends to spend at least $44.9 billion with Microsoft between November 2026 and May 2033.
- Others: the filing also mentions compute agreements with Nscale, Lambda and other cloud providers, plus reliance on Amazon, Google and Broadcom.
The filing flags the flip side too. Anthropic lists dependence on TSMC’s chip manufacturing in Taiwan as a risk, and it warns that US data center construction moratoriums “could delay or prevent the construction or expansion of facilities on which we depend for compute.”
Governance: who controls the votes
Anthropic is a public benefit corporation, and its governance is unusual. CNBC reports that the seven co-founders, including CEO Dario Amodei and President Daniela Amodei, will be the sole members of an entity called Founder LLC, which will hold 50.1% of the voting power of outstanding shares. Anthropic itself says its capital and governance structure “has no direct public company precedent” and may make it harder to replace directors and management.
That structure sits alongside earlier commitments the company has made, such as the public benefit fund holding 5% of its shares that we covered last week.
Risks Anthropic spells out
CNBC counts more than 90 pages of risk factors. The main themes include:
- AI safety judgment calls. Anthropic says it regularly decides when a model is safe enough to release, and that there is “no assurance” its safeguards will prove adequate.
- Competition. OpenAI and Google are the only two competitors named directly, alongside large tech firms and open-weight model providers.
- Cloud partners who are also rivals. Amazon, Google and Microsoft all sell competing models on their own platforms.
- Supply chain and politics. Chip supply, power, water, regulation and possible backlash over its policy positions all appear in the list.
Readers following Anthropic’s safety disclosures may remember its recent alignment report on Mythos 5, which shows why the company treats these release decisions as a material business risk.
How this compares with OpenAI
The filing puts Anthropic ahead of its main rival in the race to public markets. CNBC notes that Anthropic’s May funding round raised $65 billion at a $965 billion valuation, which pushed it above OpenAI’s reported $852 billion valuation from March. OpenAI CEO Sam Altman, meanwhile, ruled out an OpenAI IPO for 2026. MIT Sloan professor Sinan Aral told CNBC that the company’s ability to show enterprise profitability will determine how attractive it is to investors.
The timing is not easy. CNBC points out that AI infrastructure stocks have been volatile, with so-called neoclouds such as CoreWeave and Nebius losing more than 30% of their value in October.
What happens next
Before Anthropic shares can trade, the SEC registration has to become effective, and the company and its banks need to set a share count and price range, usually followed by a roadshow with investors. None of those dates are public yet. For now, the S-1 is the most detailed picture anyone outside the company has had of how Claude makes money, and how much it costs to keep up at the frontier.
This article is for information only and is not investment advice.
The Teck Hustlers Editorial Team covers technology, business, finance and gaming news for readers who want the story behind the headline. Every article is researched, written and edited by our in-house team, checked against company announcements, filings and reputable reporting, and updated when new facts emerge. We focus on what each development means for founders, professionals, investors and everyday users. Have a tip or a correction? Reach us through our contact page.
