Anthropic files to sell shares in $100 billion IPO

Anthropic filed for an initial public offering on Monday, seeking to raise up to $100 billion to fund the continued expansion of its artificial intelligence platform Claude.

The company’s prospectus details a financial profile marked by explosive revenue growth alongside massive operating losses. Anthropic reported $16.3 billion in revenue for the first half of 2026, a sharp increase from $1.2 billion in the same period last year. Despite this surge, the company posted a net loss of $80.7 billion for the six months, a figure that is more than six times its nearly $13 billion loss in the first half of 2025.

To support its operations, Anthropic directed $8.9 billion toward chips and infrastructure during the first half of 2026. This spending represents a significant jump from the $2.3 billion the company allocated to similar resources a year earlier. The filing indicates that while revenue growth is expected to slow over time, the need for capital to maintain a competitive edge remains high.

The company plans to list on the Nasdaq Composite Index under the ticker symbol ANT. Market analysts anticipate the shares could debut as early as November. If the offering reaches its maximum target, the transaction would exceed the $86 billion raised by SpaceX, potentially placing Anthropic among the world's largest publicly traded companies. Valuations for the firm, which stood at $965 billion in May, could reach $1.5 trillion or even $2 trillion, although a final number has not yet been set.

Anthropic’s founders, including CEO Dario Amodei, framed the public offering as a historic opportunity for investors. In a letter included with the filing, the seven co-founders urged buyers to view their investment as participation in a seminal moment in human history rather than a purely transactional purchase.

Nigel Green, CEO of deVere Group, described the IPO as a referendum on the entire AI trade. He noted that a successful debut could trigger a queue of additional AI listings, while a stumble might force a rapid reset in valuations across the tech sector.

The filing also outlines specific risks, including the need for recursive self-improvement to keep pace with competitors. The company stated that failing to direct sufficient compute and research efforts toward AI-assisted development could cause it to fall behind. This strategy carries inherent dangers, as experts warn that using AI to build more powerful models increases the risk of catastrophic failures such as pandemics or cyberattacks.

Amodei recently called for a pause in development following internal assessments that suggested a 10% chance of humanity facing extinction from the technology within the next decade. Despite these safety concerns, both Anthropic and rival OpenAI are moving forward with their public market plans, having filed confidential documents with the Securities and Exchange Commission in June.

The transaction will serve as a test for investor confidence in the AI sector, which has helped propel stock markets to record highs. The company must now demonstrate that its massive capital requirements can be met without stalling its technological progress.