#1OpenAI Files Confidential S-1 for IPO, Targeting Up to $1 Trillion Valuation
OpenAI is submitting a confidential S-1 to the SEC as early as today, tapping Goldman Sachs and Morgan Stanley as lead underwriters for a September 2026 listing. The expected valuation range is $852 billion to $1 trillion, which would make it one of the largest tech IPOs in history. Financial details will remain private until roughly 15 days before the roadshow.





