Anthropic publicly filed its S-1 on October 26 to list on Nasdaq as ANT. It reported $16.3 billion first-half revenue, up 14 times, and an $80.7 billion net loss, about 90% of it a non-cash accounting charge.
What Anthropic Filed
Anthropic, the company behind the Claude AI models, publicly filed its Form S-1 registration statement with the US Securities and Exchange Commission on Monday, October 26. The filing says the company plans to list its Class A shares on the Nasdaq Global Select Market under the ticker symbol ANT. Goldman Sachs and Morgan Stanley head a group of 22 banks named on the cover.
The filing leaves the price range, share count and amount to be raised blank, and Anthropic says these have not yet been determined. An amended filing is expected to add them before pricing. The company had sent a confidential draft to the SEC on June 1.
Timeline and Valuation Talk
No listing date has been announced. Under SEC staff practice, the earliest road show date would be November 10, according to Stock Titan’s reading of the rules. Bloomberg reported that formal marketing could begin as soon as the week of November 9, and CNN reported that trading could start as soon as November 16. Axios said the filing suggests shares could begin trading before Thanksgiving.
Valuation figures come from reports and speculation, and not from the company. CNN said the IPO could reportedly value Anthropic at up to $2 trillion, and noted that the company was last valued at $965 billion. Axios said there is speculation it could seek around $100 billion at a $2 trillion valuation. Other analysts quoted by Yahoo Finance expect a debut valuation of roughly $1.2 trillion to $1.5 trillion. The S-1 itself gives no company value.
Revenue Growth
The S-1 shows rapid growth. Revenue was $16.3 billion in the first half of 2026, compared with about $1.16 billion in the same period a year earlier, which is roughly 14 times higher. The second quarter alone brought in $11.6 billion.
| Metric | First Half 2026 |
| Revenue | $16.3 billion (about $1.16 billion a year earlier) |
| Operating result | Loss of $693 million |
| Second-quarter operating result | Profit of $974 million |
| Net loss | $80.7 billion |
| Cash from operations | $3.9 billion |
The customer base has widened. Businesses paying $100,000 or more a year rose from more than 950 to more than 11,900 in the year to September 30. The S-1 also says no single customer represented more than 10% of revenue in the first nine months of 2026, although the top five accounted for about 25%.
Why the Net Loss Is So Large
The $80.7 billion net loss is mostly an accounting effect. According to Stock Titan’s analysis of the filing, about $72.4 billion, or roughly 90%, came from the rising value of convertible notes and similar deals. A convertible note is a loan that later turns into shares. As Anthropic’s value rose, those instruments were worth more, which the S-1 records as a cost, and no cash was paid.
The business itself was close to break-even on an operating basis. It lost $693 million from operations over the half, then earned $974 million in the second quarter, the first profitable quarter among the six the filing shows. Operations generated $3.9 billion in cash in the first half, after using $1.5 billion a year earlier. Anthropic held $131.7 billion in cash and short-term investments on June 30.
Computing Commitments
The largest risk in the filing is the cost of computing. CNBC reported that Anthropic plans to spend at least $542 billion on data centers and cloud computing, and that it has future obligations of about $417 billion to pay providers for compute. Stock Titan calculated that minimum payments owed to Amazon and Google alone are at least $224.5 billion over contracts running to 2033 and 2036.
Many of these payments are fixed, while customer contracts can often be reduced or ended on short notice, the S-1 says. That mismatch is one of the main risks investors will weigh.
Control, Lock-Ups and Use of Proceeds
Anthropic is a public benefit corporation. Stock Titan’s summary says a Long-Term Benefit Trust holds a share that elects most of the board, and a company owned by the seven co-founders holds a share carrying 50.1% of the vote for the remaining seats. Public shareholders would therefore have limited influence over board elections.
The company says it will use net proceeds for general corporate purposes, including capital expenditure, working capital, operating costs and hiring, and may also use them to acquire or invest in businesses or technologies. Some existing holders, including five co-founders, will sell shares in the IPO, and the proceeds from those sales go to the sellers.
CNBC reported that employees and early investors will be able to sell some shares on the first trading day, followed by scheduled release dates. This differs from the usual 180-day lock-up that stops insiders from selling after a debut.
Risks and Market Context
The S-1 warns about falling behind rivals, securing enough computing and a government dispute that began in February, when the President said he had directed agencies to stop using Anthropic’s technology. It also notes that advanced AI could pose serious risks if misused.
The filing arrives as other AI listings have slowed. CNN reported that an expected wave of autumn public offerings has not materialised amid concerns about debt-funded infrastructure and AI safety, and that rival OpenAI has delayed its own IPO until next year.
Also Read: Carlsberg India Files Updated IPO Prospectus for 86.42 Million Shares, Entirely an Offer for Sale
What to Watch
The next documents to follow are an amended S-1 with the price range and share count, the start of the road show, and the final prospectus. Until then, any estimate of the IPO’s size or value is speculation.
This article reports public filings and news coverage and is not a recommendation to buy or sell any security.
