Anthropic's IPO filing shows $16.3B in first-half revenue and founder control
Anthropic's public S-1 shows $16.3 billion in revenue for the first half of 2026, a narrowing operating loss, and a share structure that leaves its co-founders and a benefit trust in control.
Anthropic has made its initial public offering filing public, giving investors their first audited look at the Claude maker's finances. The company plans to list its Class A shares on the Nasdaq Global Select Market under the ticker ANT, and the S-1 filed with the SEC on Monday reports $16.3 billion in revenue for the first six months of 2026, up from $1.2 billion a year earlier.
The company's announcement says the number of shares and the price range have not been set. Goldman Sachs and Morgan Stanley lead a long list of underwriters that also includes J.P. Morgan, Citigroup, Barclays and Wells Fargo Securities.
What the numbers show
The filing traces a steep curve. Revenue was $41 million in 2023, $386 million in 2024 and about $4.6 billion in 2025, according to the prospectus. First-half 2026 revenue of roughly $16.3 billion is about 14 times the same period of 2025. The company itself warns that it does not expect growth to continue at comparable rates and says recent gains may reflect early-stage adoption of AI.
The operating line has narrowed quickly. Anthropic reported an operating loss of $693 million for the first half of 2026, down from $2.1 billion a year earlier. Compute and infrastructure, the cost of training and serving its models, was the largest expense at about $8.9 billion in the half, followed by sales, marketing and partnerships at about $3.2 billion and personnel at about $3.2 billion.
The bottom line looks very different. Net loss for the half was $80.7 billion. Almost all of that gap comes from a $72.4 billion non-cash charge for the change in fair value of convertible notes, derivative liabilities and SAFEs, which the filing ties mainly to the rising value of its outstanding convertible notes. TechCrunch also noted the company's warning that it "may not achieve or sustain profitability in the future."
Enterprise demand is the core of the pitch. As of September 30, Anthropic counted more than 11,900 customers paying $100,000 or more over the trailing twelve months, up from more than 950 a year before, plus more than 1,900 customers at $1 million or more and about 250 at $10 million or more. The prospectus calls its coding agent, Claude Code, the product that has most concretely defined autonomous AI work, and says Claude is sold through Amazon Web Services, Google Cloud and Microsoft Azure as well as directly.
A share structure built to keep control
Anthropic is a Delaware public benefit corporation, which means its board must weigh shareholder returns against its stated purpose: the responsible development and maintenance of advanced AI for the long-term benefit of humanity. The S-1 turns that commitment into a layered share structure.
- Class A shares, the ones sold to the public, carry one vote each.
- Class N shares, held mainly by strategic business partners, have no votes and generally convert to Class A when sold to an unaffiliated party.
- A single Class T share lets the Long-Term Benefit Trust, a body of financially disinterested trustees, elect and remove directors who will make up a majority of the board.
- A single Class F share, held by an LLC owned by the seven co-founders, carries 50.1% of the total voting power on general matters, including the election of directors other than the trust's picks.
That makes Anthropic a "controlled company" under Nasdaq rules. The founders behind the LLC, according to TechCrunch, are Dario Amodei, Daniela Amodei, Tom Brown, Jack Clark, Jared Kaplan, Sam McCandlish and Christopher Olah. The filing also says the company contributed shares equal to 5% of its fully diluted stock, as of June 30, to a wholly owned Anthropic Public Benefit Fund.
Dual-class control has been common in tech listings, from Google to Meta, but pairing it with an independent trust that names most of the board is unusual for a company of this size. Public buyers will own economic exposure to Claude's growth with little say over how the company is run.
Why the deal matters for the AI market
The listing would put one of the best-known frontier AI labs on a US exchange. Reuters reports that the company is seeking to raise as much as $100 billion, and that some current and prospective investors value it at about $1.5 trillion, down from roughly $2 trillion previously expected. Anthropic raised $65 billion at a $965 billion post-money valuation in late May, according to the same report.
The listing also tests how public markets price heavy compute spending. Anthropic runs work across AWS Trainium, Google TPUs, Nvidia GPUs and AMD GPUs, and the S-1 describes long-term compute and lease commitments running out to 2045, with the dollar totals still blank in this draft. Reuters framed the filing as a test of the debt-fueled AI investment boom at a time when market volatility has thinned the fall IPO calendar.
Rival OpenAI has confidentially filed for its own IPO but has said it will not list in 2026, Reuters reports. Venture Block has followed the shifting OpenAI and Microsoft relationship, earlier calls for a frontier lab to go public, and the fast-moving Chinese competition from labs such as Moonshot AI.
The next disclosures to watch are the price range, the share count and the run-rate revenue figure as of October 31, all of which remain blank in the current draft of the prospectus.
