Artificial Intelligence
SoftBank completes final $10bn OpenAI investment tranche
SoftBank said it had made the third and final $10 billion tranche of its follow-on investment in OpenAI, completing the $30 billion commitment it announced in February.
- SoftBank Group Corp. said on 1 October 2026 that it had executed the third and final tranche of its follow-on investment in OpenAI.
- The tranche was worth $10.0 billion, or JPY 1,579.6 billion.
- SoftBank said that its completed follow-on investment in OpenAI totalled $30.0 billion.
- The company said its cumulative investment in OpenAI had reached $64.6 billion, giving it an ownership interest of about 13%.
- SoftBank said the tranche was funded from proceeds of foreign currency-denominated senior notes issued on 24 September 2026.
SoftBank Group Corp. said on 1 October 2026, Japan time, that it had completed the third and final tranche of its follow-on investment in OpenAI Group PBC. The company said the tranche was worth $10.0 billion.
SoftBank said the payment completed the $30.0 billion follow-on investment it had previously announced on 27 February 2026. It said its cumulative investment in OpenAI had reached $64.6 billion and that its holding was about 13%.
The company said the tranche had been funded with proceeds from foreign currency-denominated senior notes announced on 24 September 2026. It also said it had cancelled the remaining $10.0 billion of undrawn capacity under a bridge facility agreement effective 30 September 2026.
SoftBank said all borrowings under the bridge facility agreement had been repaid and that no undrawn commitments remained. It referred readers to earlier related disclosures on the investment, the bridge facility, the first and second tranches, early repayment of bridge loans, and the senior notes issue.
Named in this story
Companies
- SoftBank Group Corp.
- said it had executed the final tranche of its follow-on investment in OpenAI
- OpenAI Group PBC
- received the follow-on investment from SoftBank
How the source tells it
The piece was a formal corporate disclosure, with a plain factual register and no distinct emotive framing.
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