Anthropic, the US artificial intelligence company that created the Claude system, is preparing to go public in a £1.5 trillion flotation within weeks, with up to 20 per cent of shares set aside for private investors. The timing of this described 'monumental' IPO coincides with significant turbulence in the technology sector, where shares in companies including Amazon, Alphabet and Intel have declined sharply in recent weeks. These companies' results reveal escalating expenditure on artificial intelligence infrastructure, with spending expected to exceed £1 trillion this year, raising questions about future returns on such investments.
Anthropic was founded five years ago with a stated mission to be 'helpful, honest and harmless', though its initial public offering prospectus outlines ambitions to dominate the artificial intelligence sector. The company's chief executive Dario Amodei and his sister Daniella, the president, along with five other co-founders, stand to gain approximately £13 billion each from the flotation. In the first six months of this year, Anthropic's revenues reached £16.3 billion, compared with £1.2 billion in the equivalent period of 2025. The company generates income by charging customers for access to Claude, with payments calculated based on usage measured in tokens.
Simon Skinner, global head of investment at fund managers Orbis, cautioned that Anthropic represents an unusual investment case, stating the company 'could be an amazing investment, or it could be terrible. You cannot know in advance.' The prospectus itself warns that risk factors occupy 92 of its 335 pages, citing concerns including potential use of the system by malicious actors and undefined 'catastrophic or existential risks to humanity'. To support Claude's capabilities, Anthropic is investing heavily in computing infrastructure including microchips and data centres, with SpaceX alone receiving £3.1 billion monthly for access to its facilities.
Peter Singlehurst, head of private companies at Baillie Gifford, defended Claude's higher cost compared to competing systems, noting that customers may pay substantially more for models that can tackle complex problems independently. Alphabet and Amazon are among Anthropic's top shareholders, their backing suggesting confidence in the company's prospects. UK platforms including AJ Bell, eToro, Hargreaves Lansdown and Interactive Investor have not yet disclosed arrangements for British investors to purchase shares, with secrecy currently imposed by the IPO's US lawyers.
Several UK investment vehicles already hold stakes in Anthropic. Baillie Gifford US Growth, Schiehallion and Scottish Mortgage hold larger positions, while Monks, RIT Capital Partners, HarbourVest Global Private Equity and Pantheon International maintain smaller holdings. Some analysts have noted concerns that investors seeking returns from Anthropic may sell holdings in other major technology stocks, potentially driving down their prices. The stock market ticker symbol will be ANT.
For UK savers and investors, the Anthropic flotation arrives at a moment of heightened volatility in technology stocks, meaning exposure to the company could be considerably risky despite its stated commitment to acting for the global good.