Key facts
- Anthropic and some existing shareholders are seeking up to $64.4 billion, offering 825 million shares at $70 to $78 apiece, per Reuters.
- Alphabet's Google, Nvidia, AMD, Broadcom, Micron, Microsoft and TSMC agreed to invest $26 billion in a private placement at the IPO price.
- Details of the IPO were briefly circulated to banks before being retracted late on November 9, 2026, per emails seen by Reuters.
- Anthropic raised $65 billion at a post-money valuation of $965 billion in late May 2026, Reuters reported.
- Reuters said the listing would be one of the largest debuts ever attempted, potentially reshaping benchmark indexes and investor flows.
Anthropic launched the roadshow for its US initial public offering on November 10, 2026, moving the Claude maker toward a listing it is targeting at a valuation of about $1 trillion, Reuters reported.
The AI lab and some existing shareholders are seeking to raise up to $64.4 billion, offering 825 million shares priced between $70 and $78 apiece, according to Reuters. Anthropic has also lined up $26 billion in investments from some of the world's biggest technology companies alongside the IPO. Alphabet's Google, Nvidia, Advanced Micro Devices, Broadcom, Micron Technology, Microsoft and TSMC have agreed to participate in the private placement at the IPO price.
Details of the IPO were briefly circulated to banks before being retracted late on November 9, 2026, according to emails seen by Reuters. Investors had previously discussed a valuation of as much as $2 trillion for Anthropic, but expectations have since come down, with the $1.5 trillion figure viewed as the high end of the range, Reuters previously reported. The IPO has already been pushed back from earlier plans, with Reuters previously reporting that marketing was expected to begin in mid-October at the earliest.
Anthropic, founded in 2021 by a team of researchers who left OpenAI after disagreements over governance and AI safety, raised $65 billion at a post-money valuation of $965 billion in late May 2026, Reuters reported.
Reuters said the listing would represent what is expected to be one of the largest debuts ever attempted, potentially reshaping benchmark indexes and investor flows. The report also set out other large AI-related listings: OpenAI, which operates ChatGPT, revealed in June 2026 that it had confidentially filed for a US IPO, and CEO Sam Altman said in September 2026 the company will not go public in 2026, citing safety concerns. OpenAI President Greg Brockman said the week before November 10 that the company now generates the majority of its revenue from enterprise sales and he believes it will be ready to go public in 2027. OpenAI has closed on new funding of $11 billion, the initial part of a round that values the company at $1.25 trillion, Reuters reported the week before November 10.
SpaceX made its stock market debut on the Nasdaq in June 2026 with a $75 billion listing, more than double the proceeds of Saudi Aramco's 2019 IPO, Reuters reported. SpaceX shares ended their first day of trading at $160.95 per share, bringing its value to $2.1 trillion, and closed at $142.07 on November 9, 2026, against a $135 IPO price.