After the contents of the S-1 prospectus were leaked over the past few weeks, Anthropic finally submitted its initial public offering (IPO) application on Monday, kicking off what is one of the most highly anticipated public listings in modern American history.

According to the latest documents submitted by the company to the U.S. Securities and Exchange Commission (SEC), Anthropic plans to list under the stock code “ANT”. The company's revenue in the first half of 2026 was 16.3 billion dollars, which is higher than the 1.2 billion dollars in the same period last year.

The operating loss corresponding to this revenue was $693 million, which represents an improvement compared to the $2.1 billion operating loss recorded by Anthropic in the first half of 2025. However, Anthropic incurred a net loss of $80.7 billion, mainly driven by non-cash accounting adjustments related to convertible debt. The company stated that in the future, it "may not be able to achieve or maintain profitability."

This document also discloses in more detail the scale of Anthropic's business operations. As of the end of September, Anthropic has over 11,900 customers with annual expenditures of $100,000 or more; 1,900 customers with annual expenditures of $1 million or more; and approximately 250 customers with annual expenditures of $10 million or more.

As previously reported, the governance structure of Anthropic will enable the company's seven co-founders to continue to maintain control after going public. According to the documents, Dario Amodei, Daniela Amodei, Tom Brown, Jack Clark, Jared Kaplan, Sam McCandlish, and Chistopher Olah will form “Founder LLC” and will collectively hold 50.1% of the shareholder voting rights. Anthropic stated that this move is aimed at maintaining the company's AI security mission.

The "Long-Term Interest Trust" ( Long - Term Benefit Trust ) established by Anthropic in 2023 will have the right to appoint the majority of seats on the company's board of directors, in order to ensure that the company advances its mission for the public interest.

This governance structure is controversial because it means that voting rights are not proportional to the economic stake held by the founders. As a result, shareholders in the public market will hardly have any actual control over a company that is developing technology that, according to its own claims, poses a 'catastrophic or existential risk' to humanity.

Anthropic has not disclosed the amount of funds it hopes to raise, nor has it revealed the proposed issue price.