Anthropic to publicly file IPO prospectus, aiming for mid-November listing

Artificial intelligence giant Anthropic is set to publicly file its initial public offering (IPO) prospectus on Monday, October 26, 2026, around 9 a.m. Eastern Time (13:00 UTC). The company, known for its Claude AI model, aims for a Wall Street debut in mid-November, potentially making it one of the largest technology debuts in market history. Valuation expectations have reportedly declined from $2 trillion to approximately $1.5 trillion amid pressures on AI stocks. The filing is expected to reveal details on revenue, which reached $16.3 billion in the first half of 2026, and a net loss of $80.7 billion for the same period, largely due to non-cash charges related to accounting and financing.