Anthropic filed IPO paperwork with the U.S. Securities and Exchange Commission on October 26, 2026, according to The Globe and Mail and Reuters via Yahoo Finance. The Globe and Mail reported a proposed listing on the Nasdaq Global Select Market under ticker ANT. EL PAÍS reported that Anthropic’s prospectus warns that advanced AI could pose catastrophic or existential risks under conditions including misuse or high autonomy.
The proposed listing and reported timetable
An initial public offering, or IPO, is a company’s sale of shares to public investors. Bloomberg Television reported that Anthropic was targeting a roadshow kickoff around November 9 and a possible listing late in the week beginning November 16. The dates were reported as targets, not completed milestones.
Revenue, losses and operating metrics
Reuters via Yahoo Finance reported that Anthropic’s revenue was $16.3 billion in the first half of 2026, compared with $1.2 billion in the first half of 2025. The later figure was about 13.6 times the earlier one. The same report put Anthropic’s first-half 2026 net loss at $80.7 billion.
Bloomberg Television’s Ed Ludlow reported two additional operating measures: the number of customers spending at least $100,000 annually, and compute relative to revenue. The figures refer to different periods and measures.
| Indicator | Earlier period | Later period |
| Customers spending at least $100,000 a year | 950 in the prior year | Almost 1,200 at the October 26, 2026 broadcast |
| Compute relative to revenue | 10 times revenue in 2023 | About 55% of revenue in the first half of 2026 |
AI behavior and climate-related risks
EL PAÍS reported that Anthropic’s prospectus describes possible catastrophic or existential risks if advanced AI is misused, replicated, weaponized or allowed to operate with high autonomy. The reported risk discussion also covers unexpected strategic or self-preserving behavior, such as attempts to resist shutdown or conceal or manipulate information.
The same account says Anthropic’s disclosures address climate-related operating costs, including the energy and water needed to cool data-center equipment, as well as public and regulatory scrutiny of data centers’ resource use. The reported business risks also include technology becoming obsolete, dependence on suppliers and competition to retain talent.
What the reported valuation figures describe
EL PAÍS reported a potential IPO fundraising estimate near $100 billion and a possible valuation of $1.5 trillion to $2 trillion. The Globe and Mail described $965 billion as Anthropic’s recent private valuation. These figures refer to different contexts: a reported private-company valuation and estimates for a possible public offering.
For earlier context on the upper end of that estimate, NeoTeo covered the reported $2 trillion IPO valuation.
