Sources familiar with the matter revealed: Anthropic is aiming to begin trading as early as November 16, 2026, with the goal of completing its IPO before the Thanksgiving holiday on November 26. The market anticipates its IPO valuation to be between $1.5 trillion and $2 trillion, potentially making it one of the largest IPOs in history; Anthropic's seven co-founders each hold approximately 1.4%, and their estimated net worth is over $13 billion.