Anthropic files for IPO, discloses rapid growth, heavy losses and AI risks

Anthropic filed a public registration statement with the U.S. Securities and Exchange Commission on Monday, moving the Claude developer closer to an initial public offering on Nasdaq under the ticker “ANT.” The company did not disclose the number of shares, expected price range or listing date.

Reports have suggested the offering could value Anthropic at between $1.5 trillion and $2 trillion and could occur as soon as November, though no final valuation has been established. Anthropic was founded five years ago by former OpenAI researchers led by CEO Dario Amodei.

The filing showed revenue of $16.3 billion in the first half of 2026, up from $1.2 billion in the same period a year earlier. Anthropic reported a net loss of $80.7 billion, compared with nearly $13 billion in the first half of 2025. NPR reported that adjusted operating income reached $1.6 billion, reversing a $1.8 billion loss a year earlier.

Anthropic presented AI as a technology capable of accelerating scientific research, improving productivity and potentially helping cure diseases. Its prospectus also devoted extensive attention to risks. The company warned that sufficiently advanced systems could pose “catastrophic or existential risks to humanity” if developed or operated without adequate safeguards, oversight and security.

The filing said risks could increase as AI systems automate AI research, potentially advancing faster than developers can evaluate and safeguard new models. Anthropic also warned that increasingly autonomous systems could take harmful actions at scale because of misalignment, errors or misuse, and cited continuing threats from state-sponsored and other malicious actors.