Anthropic prepares to publish prospectus for potential IPO as quarterly revenue reaches $16.8 billion
Key Facts
Anthropic is preparing to publish a draft S-1 registration statement for an initial public offering as soon as Friday, October 23, 2026, according to a Yahoo Finance report citing people familiar with the matter; the company has not publicly confirmed the date. If it happens, the move would shift the process from a confidential filing to making the company’s financial and risk information available to retail investors. But it would not mean a listing is certain or that its timing has been set. The company said a confidential filing gives it the option to offer shares after the U.S. Securities and Exchange Commission completes its review. It added that the proposed offering remains subject to market conditions and other factors.
Anthropic said it had submitted a confidential draft registration statement to the SEC on June 1, 2026, allowing regulatory review to begin without disclosing offering details at the time. It had not determined the number of shares to be offered or their price, according to its announcement. Publishing the draft publicly would allow investors to review broader financial and risk information ahead of any potential offering. Yahoo Finance reported that a public filing could remove a major procedural hurdle to a potential November listing. Clearing that step, however, would not settle the timing of the offering, which remains tied to the SEC’s review and market conditions.
Revenue and loss figures are in focus as the company prepares to disclose more information. Yahoo Finance, citing an earlier Wall Street Journal report, said Anthropic generated $16.3 billion in revenue in the first half of 2026, while its net loss exceeded $80 billion during the same period. In a separate update reported by Reuters, citing people who attended an investor meeting on October 14, quarterly revenue rose to $16.8 billion in the third quarter, compared with $11.6 billion in the second quarter and $4.7 billion in the first quarter. Attendees said the company recorded an adjusted profit in the third quarter. These indicators put growth alongside profitability at the heart of how investors will assess the company.
But quarterly revenue growth did not continue at the same pace, according to a Reuters Breakingviews analysis; sales growth slowed to 45% in the third quarter from 145% in the previous quarter. The analysis linked the slowdown to a token price war, which boosted usage and put pressure on revenue per unit. It estimated an adjusted operating margin of 11% for the period through September, while the gross profit margin under generally accepted accounting principles was 85%, compared with 40% in 2025. These figures highlight the gap between gross and operating margins, and the importance of operating costs in assessing performance. The draft will allow investors to examine these factors in the company’s financial and risk disclosures.
Expanding computing capacity is also part of the company’s financial needs. Anthropic said in May that funding from its Series H round would support an increase in computing capacity to meet demand for Claude. It announced agreements with Amazon to provide up to five gigawatts of new capacity, and with Google and Broadcom to provide five gigawatts of next-generation TPU capacity. In February, the company announced it had raised $30 billion in a Series G round at a post-money valuation of $380 billion. It then announced a $65 billion Series H round in May at a post-money valuation of $965 billion, and said its annualized revenue run rate had exceeded $47 billion early that month.
The move comes as listing plans for other companies tied to artificial intelligence have receded. Reuters reported on October 22 that Anthropic was the sole company left on the fall 2026 technology IPO calendar after companies in AI infrastructure and data centers postponed their listings. Reuters attributed the delays to higher interest rates and concerns about the sustainability of AI spending. In contrast, its report said the company expects to begin marketing shares to investors during the week of November 9, with the plan and dates subject to change. The report attributed to the company consideration of a potential valuation of $1.5 trillion, without that being a price or valuation announced by the company.
Anthropic announced in October that it would allocate 5% of its shares to a new public benefit fund, subject to shareholder approval, with the proportion potentially increasing as the company grows. It said details of the fund’s structure and governance would be published in the coming months. The next step in the IPO process would be public release of the draft if the date reported by sources holds, followed by completion of the SEC review, as the company has described. The number of shares and their price remain undetermined. The start of marketing during the week of November 9 and a potential November IPO also remain expected, changeable timelines rather than a final announced date.