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SoftBank Group–OpenAI
SoftBank Group has finalized its $30 billion follow-on investment in OpenAI with a final $10 billion payment, bringing its total backing to $64.6 billion. The transaction cements the Japanese conglomerate's 13% ownership in the AI lab, funded by a record-breaking $11.1 billion high-yield bond issuance.
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Timeline
October 2026
SoftBank Completes $30 Billion OpenAI Investment to Secure 13% Stake
September 2026
SoftBank Plans $11 Billion Bond Sale to Fund Strategic OpenAI Investments

