Artificial intelligence company Anthropic plans to sell up to $3.5 billion worth of shares to Japanese investors as part of its proposed initial public offering (IPO) in the United States, according to a regulatory filing released on Monday.
The filing outlines a Japanese share offering worth approximately 552.9 billion yen, providing international investors with an opportunity to participate in the company’s planned public listing.
Anthropic intends to use the proceeds from the new shares to support working capital, operating expenses and capital expenditure. These funds could help the company finance its operations and meet the growing infrastructure demands associated with developing and deploying advanced AI systems.
However, the filing did not disclose the overall size or final valuation of the proposed IPO.
Some investors have discussed a potential valuation of approximately $1.5 trillion for Anthropic, although the figure remains unconfirmed and should not be interpreted as the company’s established IPO valuation.
The proposed Japanese offering forms part of a broader international share sale associated with Anthropic’s planned US listing. Investors in selected markets, including Australia, Canada and parts of Europe, are also expected to have opportunities to participate.
The development comes amid growing investor interest in major technology and artificial intelligence companies seeking access to public equity markets.
Anthropic, the developer of the Claude family of AI models, competes in an increasingly competitive market as technology companies invest heavily in computing infrastructure, AI research and enterprise services.
The company’s proposed share sale also follows the record-breaking IPO of SpaceX in June 2026. Japanese investors secured approximately $2.2 billion worth of shares in that offering, which raised $75 billion.
Anthropic’s planned Japanese allocation of up to $3.5 billion would represent a significant opportunity for investors in the country to participate in another major US technology listing.
The final size, pricing and valuation of Anthropic’s IPO have not been established in the reported filing. The proposed share sale remains part of a broader process to bring the company to the public markets.
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