T. Rowe Price

Sam Altman’s OpenAI Is Officially the World’s Most Valuable Startup at $500B

October 2, 2025 · New York, New York Local News

A secondary share sale propelled OpenAI’s valuation, setting a new record for private companies. The Washington Post via Getty Images OpenAI has reached a new milestone: a $500…

OpenAI is now the world’s most valuable private company at $500 billion

October 2, 2025 · Gadgets

OpenAI has overtaken SpaceX as the largest startup and most valuable private company in the world. Bloomberg has reported that the company has authorized a secondary share sale,…