On October 26, 2026, Anthropic filed a registration statement on Form S-1 with the U.S. Securities and Exchange Commission for a proposed initial public offering of its Class A common stock. The company, known for its Claude assistant, plans to list on the Nasdaq Global Select Market under the symbol "ANT".
At the time of the announcement, Anthropic had not yet determined either the number of shares to be offered or the price range of the offering. The company also clarified that the registration statement had been filed but had not yet become effective, so the shares could not be sold and no purchase offers could be accepted until that happened.
The move matters for the AI sector because it turns one of the most influential labs of the moment into a company preparing to face public market scrutiny. From here, the timeline will depend on the review of the regulator and the formal steps an IPO requires, not on an immediate announcement of a share sale.
Source: Anthropic (https://www.anthropic.com/news/s1-sec)
