Anthropic Files Its IPO Prospectus: $16.3 Billion in Revenue, an $80.7 Billion Loss and a Nasdaq Ticker
The Claude maker's public S-1 shows revenue up about 1,300 percent in six months, a first operating profit in one quarter, a founder share that holds 50.1 percent of votes, and a debut weeks away.
Outspoken Digest Technology Desk
Wednesday, October 28, 2026/3 min read
For a company that did not exist five years ago, the paperwork is staggering. On Monday morning Anthropic made its registration statement public, and with it the first audited look inside the maker of Claude: $16.3 billion in revenue for the first six months of 2026, an $80.7 billion net loss, and a plan to list on the Nasdaq under the symbol ANT.
The filing, which Fortune reports landed at 9:25 a.m. Eastern on 26 October, follows a confidential draft submitted in June. It leaves the share count and price blank, so no valuation is in the document itself. Lead underwriters are Goldman Sachs and Morgan Stanley, and the Yahoo Finance live coverage describes the offering as weeks away.
How much money did Anthropic make and lose?
Revenue for the six months to 30 June was about $16.3 billion, up roughly 1,300 percent from the $1.16 billion of a year earlier, according to Fortune and The VC Corner, which tallied the filing's figures. Second-quarter revenue alone was $11.6 billion.
The $80.7 billion net loss looks alarming and mostly is not an operating story. About $72.4 billion of it is a non-cash accounting charge tied to the rising value of the company's convertible notes. The operating loss for the half was $693 million, down from $2.1 billion a year earlier, and Anthropic reports $3.9 billion of positive operating cash flow. Yahoo's tally has the second quarter as the first with an operating profit, $974 million, after a loss in the first.
Compute is the big cost line: $5.6 billion in the second quarter against $11.6 billion of revenue, or about $2.08 of revenue for each compute dollar, Fortune says. The company had about 5,300 employees at the end of September.
Who controls Anthropic after the IPO?
Seven co-founders keep 50.1 percent of the votes through a single Class F share held by a founder vehicle, according to both Fortune and The VC Corner. The latter adds that the Long-Term Benefit Trust elects a majority of the board. Fortune reports each co-founder has pledged 80 percent of their personal Anthropic equity to philanthropy.
Anthropic is a public benefit corporation, and the filing's legal purpose, quoted by Yahoo, is the responsible development of advanced AI for the long-term benefit of humanity.
What are the risks buried in the filing?
Customer concentration stands out. Fortune says the top five customers supplied about 25 percent of revenue in the first nine months of 2026, and nearly half of revenue flows through the cloud marketplaces of Amazon, Google and Microsoft. Anthropic estimated that 5 to 7 percent of its 2026 revenue came from customers it later found violating its usage policies.
The risk factors run to roughly 94 pages of a document more than 300 pages long. Yahoo notes the filing warns that advanced AI could pose a catastrophic or existential risk if misused or left to act autonomously, and that insurance may not cover such a loss. It also describes a deal giving Anthropic access to Nvidia chips through a SpaceX AI arrangement worth up to $120.5 billion through 2029.
When could ANT start trading?
Fortune says Anthropic is targeting a debut in Thanksgiving week, which would put pricing in the second half of November. Reports of a $1.5 trillion to $2 trillion valuation come from the press, not the filing; the last private round, in May, valued the company at $965 billion. Anthropic has said the IPO is subject to SEC review and market conditions, and the registration is not yet effective.
The next documents to watch are the amended filing with a price range and the roadshow. Until then, the numbers that matter are the ones already on the page: enormous growth, a gigantic non-cash loss and a founder share that will keep control in a few hands.
Disclosure: Outspoken Digest uses Anthropic's Claude models in its editorial production. No one at Anthropic was involved in this article.
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