Anthropic says it has filed an S-1 for a proposed IPO and intends to list on Nasdaq as ANT. You’ve spent months watching token limits; now the company has a different unit for you to count: Class A shares. The share count and price range are still undecided, and the registration statement is not effective yet. This is a filing, not a trading debut. Keep the imaginary opening-bell livestream on pause. Your next reading assignment is a prospectus. Finally, a document that makes an AI subscription’s small print look like light entertainment.