Anthropic files IPO prospectus with new shares, existing shareholder sales and 4-class voting structure

Anthropic filed its IPO prospectus on October 26, 2026, providing for new shares and sales of existing shareholders' stakes. The company will go public with four share classes: Class F, one share held by the 7 co-founders carrying 50.1% of the vote, and Class A for public investors, employees and others, capped at 49.9% combined.

Detected & updated continuously · Source: Nebula