Anthropic’s route to Wall Street began quietly in June, when it confidentially submitted IPO paperwork alongside a broader scramble by AI leaders for capital. On Monday, it made the plan public, filing to list Class A shares on Nasdaq under the ticker ANT; neither the share count nor price range has been set. ¹

The filing turns Anthropic into a high-stakes test of whether spectacular AI growth can outrun its own costs. Revenue reached $16.3 billion in the first half of 2026, up from $1.2 billion a year earlier, while the reported net loss hit $80.7 billion. Much of that number — $72.4 billion — reflected a non-cash charge tied to the rising value of convertible notes, and operating losses narrowed to $693 million from $2.1 billion. ²

That distinction strengthens Anthropic’s case that its business is gaining operating leverage. Yet the prospectus also records the staggering bill required to keep Claude competitive: huge long-term cloud and computing arrangements, including commitments with SpaceX, Microsoft, Google and Amazon. The company’s growth is also dependent on a relatively narrow base, with its five biggest customers supplying roughly a quarter of revenue. ³

Anthropic argues the IPO cannot be judged as a conventional growth offering. “We believe that AI is one of the most consequential technologies in human history,” it says, pairing promises of scientific discovery and disease cures with an explicit pledge to manage the dangers of fast-moving AI. ³ Its seven co-founders will retain 50.1% of voting power through a Founder LLC, while its Long-Term Benefit Trust will hold most board-appointment power — structures intended to insulate its public-benefit mission from short-term market pressure.

That insulation is precisely the tension. Public investors would fund a company whose own risk disclosures warn that sufficiently advanced systems could pose “catastrophic or existential risks to humanity” if misused, weaponized or deployed without adequate safeguards. ⁴ As one assessment put it, the offering is likely to become “a referendum on the business of AI,” not merely another securities sale. ⁵