OpenAI prepares IPO filing

OpenAI is preparing to file for an initial public offering in the coming weeks, the New York Times reported on May 20, citing people familiar with the matter. CNET reported the company could become publicly traded as soon as September. As of May 21, no IPO registration statement for OpenAI appeared on the U.S. Securities and Exchange Commission’s EDGAR system. The report lands after OpenAI spent the past year reshaping its corporate structure. OpenAI said its for-profit business now operates as a public benefit corporation called OpenAI Group PBC, while the OpenAI Foundation controls the group. OpenAI said that structure is intended to keep the company’s mission under nonprofit oversight while giving the business ordinary shares of stock. (sec.gov) ### What would actually go public? OpenAI’s own filings and corporate statements point to OpenAI Group PBC as the operating business that would be the most plausible IPO vehicle. OpenAI said the for-profit arm “is now a public benefit corporation” and that the nonprofit foundation governs it. The company has not publicly said that it has filed, or is about to file, for an IPO. (openai.com) A public benefit corporation can still list shares on public markets, but it is organized to consider both shareholder interests and its stated public benefit. OpenAI said the PBC carries the same mission as the foundation and remains under its oversight. ### Why does OpenAI’s structure matter to an IPO filing? OpenAI began as a nonprofit in 2015 and created a for-profit subsidiary in 2019 to raise capital for research and deployment, according to the company. (openai.com) In updates published in late 2025, OpenAI said it had completed a recapitalization that left the nonprofit in control while converting the operating company into a PBC. That matters because an IPO requires a clearer stock-based corporate structure than OpenAI’s earlier capped-profit design. OpenAI said its plan was to move to a PBC “with ordinary shares of stock,” language that aligns with a conventional public listing structure, though the company did not tie that statement directly to any filing timetable. (openai.com) ### Who are the key stakeholders investors would watch? Microsoft is the most prominent named outside backer in OpenAI’s own materials. OpenAI said in a partnership update that, after the recapitalization, Microsoft held an investment in OpenAI Group PBC valued at about $135 billion, representing roughly 27% on an as-converted diluted basis. (openai.com) OpenAI also said the nonprofit foundation would remain a large shareholder in the PBC. In a public event replay posted by OpenAI’s forum, the company said the foundation would hold roughly $130 billion in equity in the for-profit arm. ### What has been filed so far? (openai.com) SEC records show OpenAI has previously filed Form D notices tied to private fundraising, including filings in 2021 and 2023. Those are not IPO documents and do not register shares for public trading. As of May 21, the SEC’s public filing database did not show a Form S-1 or other public registration statement for OpenAI. If the company moves ahead, that filing would be the first detailed public document laying out its finances, risk factors, governance and share structure. (forum.openai.com) ### What happens next, and where would it show up? The next concrete milestone would be a registration statement filed with the SEC, typically on Form S-1 for a U.S. (sec.gov) IPO. The SEC’s EDGAR database is the public site where that filing would appear. CNET said OpenAI could be publicly traded as soon as September, but that timeline remains contingent on a filing that has not yet appeared publicly. (sec.gov) Until then, the most specific public markers are OpenAI’s completed PBC restructuring, Microsoft’s disclosed stake, and the absence of an IPO document on EDGAR as of May 21. (openai.com)