Anthropic is going public. The company has filed its public S-1 paperwork for a listing on the Nasdaq under the ticker symbol ANT, setting the stage for what could be the biggest initial public offering of stock ever. Analysts and investors have previously valued the San Francisco-based company, founded in 2021, at more than $1.5tn—enough to make the listing one of the largest in market history.
The filing gives the public its first detailed look at Anthropic’s finances, including audited disclosures and losses that make the usual AI growth story look less polished. The company was valued at $965 billion in May, while the valuation attached to its planned listing has been placed above $1.5tn.
That gap is not a minor footnote. It shows how quickly the numbers surrounding major AI companies can move, even before shares reach the market. Financial gravity still applies, although AI fundraising has spent years acting as if it misplaced the rulebook.
A huge valuation built on huge losses
Anthropic disclosed a total net loss of about $42 billion in 2025, alongside revenue of $4.6 billion. In the first six months ending June 30, the company recorded a net loss of $80.7 billion—nearly double its loss.
Those figures will give investors the first public glimpse of the company’s financial health, after months of intense speculation about its performance and questions over a potential AI bubble. The audited filings pull back the curtain on the financial results behind one of the fastest-growing startups in history.
Anthropic’s flagship product is Claude, a chatbot with text-generation features as well as advanced coding and cybersecurity capabilities. The company behind it now faces the standard public-company test: turning intense interest in AI into financial results that can survive public scrutiny.
The company was founded by CEO Dario Amodei after he quit OpenAI, the maker of ChatGPT. That origin story places Anthropic inside the same AI race as one of the sector’s best-known companies, but the filing makes clear that scale and valuation have not erased the cost of building advanced AI products.
IPO plans meet a political fight
The listing arrives as Anthropic remains embroiled in a feud with the Trump administration over the use of the startup’s products in warfare. The dispute culminated in the designation of Anthropic as a supply chain risk—the first such designation for an American company.
That designation prevents any military agency from contracting with Anthropic. The company has challenged the blacklisting, adding a major policy and government-business conflict to the financial questions surrounding its IPO.
The political dispute gives Anthropic’s filing another layer of importance. Public investors will be assessing a company with a high-profile chatbot, advanced coding and cybersecurity capabilities, enormous reported losses, and a fight over whether its products can be used by military agencies.
Anthropic has publicly filed under the symbol ANT, but the filing does not make the company’s future simple. It makes the company’s finances visible, places its valuation under public pressure, and turns its argument over AI and warfare into part of the story investors will examine.
Based on
- Anthropic files for listing on US stock market with valuation of more than $1.5tn — theguardian.com
- AI giant Anthropic files for IPO | AP News — apnews.com
- Anthropic’s Public S-1 Sets Stage for Massive IPO Debut – Business Insider — businessinsider.com
- Artificial intelligence giant Anthropic files papers to sell shares to the public for the first time | The Independent — independent.co.uk
