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SB Energy IPO filing reveals extensive financial and operational ties with OpenAI

The data center developer disclosed that OpenAI holds up to $5.5 billion in stock warrants while serving as an anchor tenant for its major compute facilities.

Updated Sep 1, 2026 · 21:18 UTC1 reports

The short version

  • SB Energy filed its initial public offering prospectus, disclosing significant financial, operational, and governance connections with OpenAI.
  • OpenAI holds warrants in SB Energy valued at an estimated $5.5 billion as of June 30 and can nominate a board director if its stake reaches 5%.
  • SB Energy warned prospective investors that its reliance on OpenAI as an anchor tenant creates potential conflicts of interest and material business risks.
  • Both companies are collaborating on a massive planned 8-gigawatt facility in Ohio alongside Nvidia as tech firms accelerate infrastructure spending.

Key facts

  • SB Energy filed its initial public offering prospectus, disclosing deep commercial ties with OpenAI.[Business Insider]
  • OpenAI holds stock warrants in SB Energy that were valued at $3.6 billion when issued in early 2026 and reached an estimated $5.5 billion by June 30.[Business Insider]
  • OpenAI will be entitled to nominate a candidate to SB Energy's board of directors if its ownership reaches at least 5%.[Business Insider]
  • SB Energy is constructing two initial data center facilities in Texas, allocating one to OpenAI and the other to SoftBank, which owns more than 50% of SB Energy.[Business Insider]
  • SB Energy and OpenAI plan to construct an 8-gigawatt data center facility in Southern Ohio with assistance from Nvidia to serve OpenAI's infrastructure needs.[Business Insider]
  • SB Energy agreed to spend at least $50 million on OpenAI services, including ChatGPT Enterprise, through 2028.[Business Insider]
  • The IPO filing cautioned that SB Energy's board could face difficulties enforcing lease terms and that conflicts could emerge between OpenAI's roles as tenant and equity holder.[Business Insider]

What remains uncertain

  • The timeline and terms for SB Energy's and OpenAI's respective public offerings remain unspecified, though OpenAI is reportedly preparing for an IPO next year.[Business Insider]
  • The ultimate equity share OpenAI will hold in SB Energy depends on future valuation milestones and the execution of warrant tranches.[Business Insider]

Sources