Anthropic is filling for IPO
Anthropic has filled draft S-1 with SEC. Basically first step towards their IPO.
Draft S-1 is a private doc but once SEC approves it Anthropic must submit public S1 before it goes public.
What is Form S-1?
It is an official SEC document that companies must file before going public. It should have all the things like financials, risk factors, business model, ownership, etc.
In general, it takes around roughtly 1-3 months for the review.