Anthropic is now expected to begin marketing its initial public offering in mid-October at the earliest, delaying a closely watched stock-market debut that could become one of the largest technology listings ever attempted.
The company had previously been expected to release its public prospectus as early as the second week of September. That disclosure is now likely to arrive in late September, according to people familiar with the preparations.
The timetable remains preliminary and could change as Anthropic works through regulatory reviews, market conditions and other listing requirements. The company, which develops the Claude family of artificial-intelligence models, declined to comment on the reported plans.
Some investors have suggested that the IPO could value Anthropic at approximately $2 trillion. That figure is an expectation rather than a valuation confirmed by the company, its banks or a public filing.
Public Prospectus Moves to Late September
Anthropic reportedly submitted confidential IPO paperwork earlier in 2026. A confidential filing allows a company to begin discussions with regulators without immediately publishing its financial statements and risk disclosures.
Making the prospectus public would provide investors with their first detailed look at Anthropic’s recent revenue, expenses, losses or profits, ownership structure and planned use of the money raised.
These details will be central to assessing any potential $2 trillion valuation. Rapid adoption of generative AI has created substantial demand for Anthropic Claude, but developing and operating advanced models requires enormous infrastructure spending.
Anthropic has not announced the number of shares it intends to sell, the expected price range, the exchange on which it will list or the final valuation it will seek. A large headline valuation also does not mean the company will raise the same amount. An IPO normally sells only a portion of the company’s enlarged share capital.
The reported delay is therefore a change in the working timetable, not a cancellation. Companies frequently adjust IPO schedules while responding to regulatory comments, updating financial information and evaluating market demand.
Banks Work on IPO and $15 Billion Credit Line
Morgan Stanley, Goldman Sachs, JPMorgan and Citigroup are among the banks working with Anthropic on the offering, according to people familiar with the process. The banks declined to comment.
Anthropic is also working to finalise a $15 billion revolving credit facility. Once that financing is completed, analysts from the participating banks are expected to meet the company’s management before the prospectus becomes public.
A revolving facility gives a company access to funds that it can borrow, repay and borrow again within agreed limits. It should not be confused with IPO proceeds or treated as money already drawn and spent.
The facility could give Anthropic additional liquidity while its computing requirements and commercial operations expand. It also provides banks with a closer view of the company before they market its shares to institutional investors.
Marketing the IPO would involve presentations to prospective investors, during which management explains the company’s technology, finances, growth strategy and major risks. Feedback from that process helps determine the number of shares sold and the final issue price.
If marketing starts in mid-October, the listing could be completed shortly afterwards, provided regulatory and market conditions allow it.
Claude Maker Becomes Major Test for AI Valuations
Anthropic’s proposed listing comes as investors seek direct exposure to companies building leading generative-AI platforms.
The company competes with OpenAI, Google and other model developers across consumer subscriptions, enterprise software, coding tools and application-programming interfaces. Claude has gained relevance among businesses and software developers using AI for writing, analysis, programming and multi-step digital tasks.
An Anthropic IPO would allow public-market investors to value a frontier-model developer independently rather than gaining indirect exposure through partners or cloud providers.
It would also test whether public investors are willing to support the valuations placed on private AI companies while accounting for their high computing costs, aggressive expansion plans and intense competition.
SpaceX completed its stock-market debut in June at a valuation of approximately $1.77 trillion. A listing near the level discussed for Anthropic would exceed that figure, although the final comparison cannot be made until the Claude developer publishes its price range and share count.
Potential listings from other AI companies, including OpenAI, could make Anthropic’s debut an important reference point for the wider industry. A strong reception could support future offerings, while weaker demand could force private AI companies to reconsider their pricing expectations.
For now, investors have only a reported timetable and an unconfirmed valuation estimate. The public prospectus expected in late September will be the next significant step because it should replace speculation with audited financial information and formal details of the offering.
Until that document appears, the Anthropic IPO remains a highly anticipated but unfinished transaction. Its mid-October marketing target provides a clearer window, but the valuation, fundraising amount and final listing date are still open.
Reference:
https://www.reuters.com/world/anthropic-ipo-launch-shifts-toward-mid-october-sources-say-2026-09-04/
