SoftBank Group Corp. (SFTBF,SFTBY,9984.T), a Japanese investment holding company, on Wednesday said it has completed an additional $22.5 billion investment in OpenAI at the second closing on December 26.
The company completed the first closing in April 2025 with a $7.5 billion investment through SoftBank Vision Fund 2.
The second closing comprised a further $22.5 billion investment, also through SVF2.
The investment fully satisfies the company's previously announced commitment of up to $40 billion made on March 31.
Together with an oversubscribed and upsized $11 billion participation from third-party co-investors, the final aggregate commitment of $41 billion has now been fully funded.
Following the completion of the investment, the company's aggregate ownership interest in OpenAI stands at approximately 11%.
On Tuesday, SoftBank Group closed trading 1.90% lesser at JPY 4,400 on the Tokyo Stock Exchange.
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