Anthropic’s confidential initial-public-offering paperwork shows rapid growth accompanied by heavy operating losses and deep reliance on major cloud-computing partners, according to reporting published September 29 and 30, 2026.
The draft registration statement has not been released publicly by the Securities and Exchange Commission. The financial figures and governance details described below come from Reuters, which said its journalists reviewed a copy of the approximately 300-page filing. They should therefore be treated as reported disclosures from a confidential draft, not as figures readers can yet verify in a public S-1.
What the reported filing says about losses
Reuters reported on September 30 that Anthropic recorded a net loss of about $42 billion in 2025. Roughly $34 billion of that amount reportedly came from financing-related valuation adjustments, leaving an operating loss of more than $8 billion.
The distinction is important. Financing write-downs can create a very large accounting loss without representing the same type of cash outflow as spending on employees, data centers or computing services. The operating loss is the more direct indicator of how much the company’s core business expenses exceeded revenue during the period.
Because the prospectus remains confidential, AskNovus cannot independently review the accounting policies, footnotes or later amendments that may change those numbers before a public filing.
Cloud partners are also suppliers, investors and competitors
A separate Reuters analysis published September 30 described Anthropic’s close relationships with Amazon, Google and other technology companies as both a growth engine and a risk.
Reuters reported that 47% of Anthropic’s 2025 sales reached customers through the cloud marketplaces operated by Amazon and Google. Those businesses also invest in Anthropic, supply the computing infrastructure required to train and run its models, and compete in the broader AI market.
The filing reportedly says Anthropic pays about 16% of revenue to cloud partners. That relationship can help the company reach enterprise customers, but it also creates concentration risk if pricing, distribution terms or access to computing capacity changes.
Founder control and AI risks feature prominently
Reuters said Anthropic’s seven co-founders would retain 50.1% voting control through a structure called Founder LLC. Concentrated voting power can allow a company to maintain its long-term strategy after listing, but it can also limit the influence of ordinary shareholders.
The prospectus reportedly devotes substantial space to possible harms from advanced AI, including systems that could conceal information, resist shutdown or behave in ways developers did not intend. Those statements are risk disclosures, not evidence that any specific catastrophic event has occurred.
Bloomberg Law reported on September 29 that the draft also describes large future computing commitments and warns investors about the possibility of severe AI-related harm.
The IPO timing and valuation are not settled
Media reports have discussed an offering that could value Anthropic at as much as $2 trillion, but no public registration statement, final price range or trading date is available. Confidential filings can be revised repeatedly, and a company can postpone or abandon an offering.
Investors therefore should not treat the reported valuation as a completed deal or assume that Anthropic shares will become publicly available on a particular date. A public S-1 would provide a more reliable basis for evaluating revenue, expenses, customer concentration, governance and risk disclosures.
What to watch next
The next important step would be a public SEC filing, followed by amendments containing updated financial statements and an eventual price range. Until then, the strongest conclusions are limited: Anthropic is reportedly preparing for an IPO, its business is growing quickly, its costs remain extremely high, and its dependence on a small number of technology partners is material.
Follow AskNovus Business, Finance News and Artificial Intelligence for a breakdown if the company makes its prospectus public.
Featured image: Hitesh Choudhary via Unsplash.
Sources
- Reuters Q&A, September 30, 2026
- Reuters analysis, September 30, 2026
- Bloomberg Law, September 29, 2026