Anthropic IPO filing shows surging revenue and $80.7 billion net loss

Anthropic publicly filed for an initial public offering on October 26, disclosing sharply higher revenue alongside a substantial net loss. The San Francisco-based company behind Claude has applied to list its Class A shares on the Nasdaq Global Select Market under the symbol ANT, according to its registration statement.

The proposed offering follows a confidential filing with US regulators in June. The Guardian reported that analysts and investors have valued the company at more than $1.5 trillion, putting the anticipated debut among the largest in US history, although that valuation is not a confirmed offering price.

Revenue reached $16.286 billion in the six months ended June 30, 2026, compared with $1.163 billion in the corresponding period a year earlier, according to the filing. That half-year total also exceeded the company’s $4.585 billion in revenue for all of 2025, illustrating the speed of its commercial expansion.

Anthropic nevertheless reported a first-half net loss of $80.748 billion. Most of that reflected a $72.4 billion charge from changes in the fair value of convertible notes and other financial instruments, primarily associated with its rising valuation. Those accounting adjustments should not be read as an equivalent amount of cash spent running the business.

Its operating loss, a separate measure of business performance, was $693 million for the period. The distinction matters for investors assessing the headline loss: the accounts combine the costs of developing and delivering AI with valuation-related effects from the company’s financing arrangements. Revenue growth alone does not settle the question of sustainable profitability.

The disclosures also show substantial spending by customers. As of September 30, Anthropic reported more than 1,900 customers generating at least $1 million each in revenue over the preceding 12 months, including about 250 generating at least $10 million. Those figures offer a concrete measure of commercial demand beyond expectations about AI’s future potential.

Founded in 2021, Anthropic is entering the public-market process as investors weigh the financial viability of the multitrillion-dollar AI boom. Its offering would put a prominent developer’s financial performance under broader scrutiny. For prospective shareholders, the central question is whether expanding demand can translate into durable returns rather than growth that continues to require substantial funding.

The preliminary prospectus leaves the number of shares and proposed price range unspecified, so the filing does not establish how much the offering will raise. Both Anthropic and existing shareholders plan to sell stock, with proceeds from shareholder sales going to those sellers rather than the company. The registration statement must become effective before the securities can be sold, leaving pricing and completion as the next milestones.