OpenAI just filed a confidential S-1 with the SEC. For those unfamiliar, an S-1 is the registration document a company submits before going public. It covers financials, risk factors, and how it plans to use the money raised. With OpenAI, Anthropic, and SpaceX all in the IPO pipeline, 2026 is shaping up to be one of the most interesting IPO years in a long time.(Lark Davis)