SoftBank Group Corp. (“SBG” or the “Company”) today 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...