October 26, 2026
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Anthropic is taking a big step toward a blockbuster stock listing that would rank among the largest IPOs in history.

Patrick Sison/AP Photo


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Patrick Sison/AP Photo

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Artificial intelligence startup Anthropic, maker of the wildly popular Claude AI models, has taken a major step toward completing an initial public offering that analysts expect to be one of the largest in history.

Anthropic on Monday filed final paperwork with regulators for an initial public offering (IPO) under the symbol ANT that could reportedly value the company between $1.5 trillion and $2 trillion.

That would put it on par with Elon Musk’s rocket and artificial intelligence company, SpaceX, which was valued at about $1.8 trillion when it went public in June. Anthropic’s listing prospectus did not say how many shares the company will offer or at what price range.

The filing of a public version of a registration statement called Form S-1 with the Securities and Exchange Commission is a major milestone in Anthropic’s meteoric rise. It was launched just five years ago by a dissident group of OpenAI researchers, led by Dario Amodei, who were concerned that that company, led by Sam Altman, was not on track to safely develop AI.

Since then, Anthropic has become a giant and OpenAI’s biggest competitor, with some of the most widely used AI models on the market. But the company has faced controversies, including a conflict with the Pentagon over how its models can be used and questions about Amodei’s dire warnings about the risks of AI.

AI Stocks Hit by Volatility

The filing comes at a volatile time in the stock market for AI-related companies, as investors swing between exuberance about the positive effects AI could have on the economy and concerns about security and the tsunami of investments in the technology.

The IPO, which could happen in November, will be one of the most anticipated public stock offerings in years. OpenAI, which makes ChatGPT, is also planning an IPO, but those plans are temporarily frozen, and Altman ruled out a listing this year as “ill-advised” amid growing concerns about AI safety.

“Going public has many advantages. It provides capital for growth. It makes it easier to raise additional capital elsewhere. And it makes it possible for existing investors to withdraw money,” said Jim Angel, associate professor and markets specialist at Georgetown University.

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Miraj

**Miraj**

Miraj is a writer and contributor at LFTS, creating informative and engaging articles across news, technology, business, lifestyle, and current topics. He enjoys researching new developments and turning complex information into clear, reader-friendly stories. Through his work, Miraj aims to provide valuable, reliable, and interesting content for the LFTS audience.

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