American billionaire siblings Dario and Daniela Amodei's Anthropic IPO draws six times demand

ntration of capital in a small number of technology companies.

The company, which develops the Claude family of AI models, is seeking to sell 825 million shares at a proposed price range of $70 to $78 each. Its shares are expected to trade on the Nasdaq Global Select Market under the ticker symbol ANT.

The offering would be larger than SpaceX's recent public listing if completed at the proposed scale, making it a landmark transaction for the technology sector.

Anthropic's filing also reveals the scale of its commercial expansion. The company reported an annualised revenue run rate of $81 billion as of October 31, up from $65 billion at the end of July. The figure reflects the annualisation of recent consumption-based and subscription revenue rather than a guarantee of future earnings.

The company has attracted major technology investors and strategic partners, including Nvidia, Google, Microsoft, Amazon and other firms involved in developing the infrastructure needed to run advanced AI models.

Nvidia has agreed to purchase about $10 billion of shares as part of Anthropic's $26 billion private placement, while other investors are also expected to participate. The relationships highlight how companies developing AI models are becoming closely linked to the businesses supplying their computing infrastructure.

Dario Amodei, Anthropic's chief executive, and his sister Daniela, the company's president, founded the business in 2021 after leaving OpenAI with a group of former colleagues. They built Anthropic around the development of advanced AI systems with a strong emphasis on safety and responsible deployment.

The IPO could substantially increase the siblings' personal wealth. Billionaires.Africa previously reported that each could be worth approximately $18 billion at the proposed listing valuation, based on their estimated holdings.

The latest demand figures could strengthen the company's position as it finalises the offering, although the order book and final pricing remain subject to change. Anthropic has not publicly confirmed the reported sixfold oversubscription.

For the Amodeis, the listing represents a major transition from private AI start-up founders to leaders of a publicly traded technology company. It will also expose Anthropic to closer scrutiny from public-market investors, who will be watching its revenue growth, spending commitments and ability to compete in an increasingly expensive industry.

The strong early demand suggests that investors are still willing to make substantial bets on the companies they believe will shape the next phase of artificial intelligence.