SoftBank Completes $40 Billion Investment in OpenAI, Takes 11% Stake
The Company’s aggregate ownership interest in OpenAI is now approximately 11%.
SoftBank Group Corp. (“SBG” or the “Company”) announced that it has completed an additional investment of $22.5 billion in OpenAI on December 26, 2025 (U.S. time) at the second closing of The Company’s investment of up to $40.0 billion committed on March 31, 2025. As a result, the Company has fully satisfied its commitment to invest in OpenAI under its March 2025 commitment, alongside the participation of third-party co-investors. The Company’s aggregate ownership interest in OpenAI is now approximately 11%.
The Company completed the first closing in April 2025, investing $7.5 billion through SoftBank Vision Fund 2 (“SVF2”), and has now completed an additional investment of $22.5 billion at the second closing, also through SVF2. Together with an oversubscribed and upsized participation of $11.0 billion from other third-party co-investors the final aggregate commitment of $41.0 billion has now been fully funded.
“We are deeply aligned with OpenAI’s vision of ensuring AGI benefits all of humanity.”
– Masayoshi Son, Chairman & CEO, SoftBank Group Corp
“SoftBank saw the potential of AI early and committed with a deep belief in its impact on humanity. Their global leadership and scale help us move faster and bring advanced intelligence to the world.”
– Sam Altman, CEO, OpenAI
