By Mara Quinn | October 26, 2026
Anthropic, the company behind Claude, filed a registration statement with the Securities and Exchange Commission on Monday morning, seeking to list its Class A common stock on the Nasdaq Global Select Market under the ticker symbol ANT. The filing reports $16.29 billion in revenue for the first six months of 2026. It also reports a net loss of $80.7 billion for the same period. Both numbers are accurate, and they describe the same company across the same six months, because they measure different things. The revenue is cash flowing in. The loss is almost entirely paper, the product of an accounting rule that turns a rising valuation into a ledger liability. To read this S-1 is to hold those two facts at once and understand what separates them.
Goldman Sachs and Morgan Stanley are leading the underwriting syndicate. No price range and no share count appear in this filing; the registration statement is not yet effective, and no shares can be sold. Anthropic had submitted a confidential draft on June 1, 2026. Monday's public filing is the first time anyone outside the company and its regulators could read the numbers.
The Growth Curve
The revenue history reads like a chart that had to be reprinted because the first scale was too small. In 2023, Anthropic reported $41 million in total revenue. In all of 2025, it reported $4.59 billion. In the first half of 2026 alone, it reported $16.29 billion, against $1.16 billion in the same six months a year earlier.
The June 2026 quarter captures the acceleration in a single data point: $11.56 billion in revenue, up 1,368 percent year over year. That quarter also produced the company's first quarterly operating profit, $974 million.
The company's headcount tells a parallel story. At the end of 2024, Anthropic employed roughly 940 people. By the end of September 2026, that number had reached approximately 5,300. A company that was, three years ago, a research lab with a modest revenue line is presenting to public investors as one of the fastest-growing enterprises on record.
Raj Joshi, an analyst at Moody's, told NPR that the swing in adjusted operating income from negative to positive is "a strong positive for the AI ecosystem." Jim Angel, a professor of markets at Georgetown, told NPR that going public brings capital and liquidity, and that there is concern the sector may be in an AI bubble, calling it sensible for Anthropic to "strike while the iron is hot."
The Loss, Explained
The $80.7 billion net loss printed on the face of the income statement is real in the sense that accounting rules require it to be there. It is not real in the sense that cash left the building.
About $72.4 billion of it is a non-cash charge. As Anthropic's private valuation climbed, the paper value of its outstanding convertible notes and similar instruments climbed with them, and accounting standards require that increase to be recorded as a loss to the company. The higher Anthropic was worth in the private markets, the larger the loss it was required to report. That is not a quirk Anthropic invented; it is standard treatment for certain convertible instruments, and it will resolve when those instruments convert at IPO.
Strip out that accounting charge and the picture changes. For the first half of 2026, Anthropic reports an adjusted operating income of $1.6 billion, against an adjusted operating loss of $1.8 billion for the same period a year earlier. The operating loss on a reported basis was $693 million. Operating cash flow for the half was positive $3.93 billion.
Investors reading the S-1 with the non-cash charge in view will see an $80.7 billion loss. Investors reading it for the business's actual cash trajectory will see a company that has crossed into positive operating cash generation in less than two years of meaningful scale.
The Control Structure
The financial story is complicated. The governance story is simpler, and it matters more to anyone thinking about buying shares.
Anthropic is a Delaware public benefit corporation. The filing identifies it as a "controlled company" under Nasdaq rules. What that means, in practice, is that a public shareholder buying Class A common stock is buying the economics of Anthropic without buying any meaningful share of its direction.
Control rests in two places. A single Class F share, held by a founders' entity, carries 50.1 percent of the total stockholder vote. No matter how many Class A shares trade on Nasdaq, the founders can outvote the entire public market on any matter put to a shareholder vote. Separately, through a mechanism involving Class T stock, the Long-Term Benefit Trust elects the directors who make up a majority of the board. The trust, not the shareholders, selects the people who govern the company day to day.
The filing also discloses a Public Benefit Fund holding approximately 5 percent of the company in non-voting shares. Each co-founder has pledged to give 80 percent of their personal Anthropic equity to philanthropic causes.
The arrangement is unusual even by the standards of founder-controlled tech companies, which typically use dual-class structures to give founders extra votes. Anthropic has layered a mission-oriented trust on top of that structure, explicitly insulating long-term decision-making from public-shareholder pressure. A person buying ANT on Nasdaq will share in whatever Anthropic earns. They will not share in deciding what Anthropic does.
What the Risk Section Says
Most of a large S-1's risk factors are formulaic. Anthropic's are worth reading because the company is in an unusual position: it was founded specifically because its founders believed AI development carried existential risks, and it is now asking the public to fund that development at scale.
The filing flags the risk that Anthropic's AI models could develop faster than the company can keep them safe. It flags the risk that the models could be used to cause harm or take harmful actions on their own. It flags the risk of heightened scrutiny or political backlash over the company's policy views. These are not generic technology risks; they are statements that the product Anthropic sells could, in its own assessment, outpace its creators' ability to control it.
The insurance passage in the filing is more striking still. After a catastrophic AI incident, the company warns, "no single insurer, and potentially the insurance industry in the aggregate," may be able to cover the damage. That is a sentence written by Anthropic's own lawyers and reviewed by its own executives before being submitted to the SEC. It belongs in any honest account of what this company is.
The Pentagon fight is the live version of the policy risk the filing describes. Anthropic has drawn lines against using its AI for autonomous weapons and for mass surveillance of Americans, putting it in direct conflict with the Department of Defense. The Pentagon responded by designating Anthropic a "supply chain risk," a label previously reserved for entities with ties to U.S. adversaries, and blacklisted the company. Anthropic has sued the Pentagon in two federal district courts. Those cases remain ongoing as of the filing date.
Context and Next Steps
The filing contains no valuation. Reports from Reuters have placed IPO expectations at around $1.5 trillion; the Wall Street Journal has reported a figure closer to $2 trillion. Neither number is in the S-1, and both should be read as external reporting rather than company guidance.
For context, Anthropic's last private funding round, completed in May 2026, valued the company at $965 billion after the money. Whatever multiple the public market assigns will be determined by the roadshow and the order book.
The comparisons circulating on filing day involve SpaceX, which listed in June at a valuation of roughly $1.8 trillion. SpaceX shares have since returned to approximately where they started trading, around $150. The parallel is imperfect but relevant: the most recent major technology listing at a historically large valuation has not, so far, produced substantial gains for investors who bought on the first day.
OpenAI is also planning a public offering, but Sam Altman told Reuters that a listing this year would be "ill-advised," and those plans remain on hold.
On the reported timeline, attributed as press reporting and subject to change: the Wall Street Journal has reported that Anthropic plans to file an amended registration statement with a price range in roughly two weeks; Bloomberg has reported a roadshow during the week of November 9; the Wall Street Journal has also reported that Anthropic is targeting a listing during the week of November 16. Anthropic told investors on October 14 that third-quarter revenue reached approximately $16.8 billion, but that figure is investor communication. The S-1 financials run through June 30, 2026.
The number to watch in the amended filing is the price range. That is when the company's self-assessment of its own value becomes official.
The S-1 itself includes one sentence that captures the proposition Anthropic is making to the market as plainly as the company knows how to state it: "We believe this abundance of AI will rapidly transform every sector of the global economy in ways greater than the impact of industrialization, electricity, semiconductors, and the internet." That is the promise. The price range, when it arrives, will tell investors what Anthropic believes that promise is worth.
