Source disclosure: March 02, 2026, 08:00 JST

SoftBank Group Corp. [9984.T]

TOKYO, Mar 02 (Pulse News Wire) – SoftBank Group Corp. (9984.T) announced today that it has finalized a contract to invest an additional ¥4 trillion ($4 billion) in OpenAI Group PBC through its Vision Fund 2.

This investment brings SoftBank's total stake in OpenAI to approximately $6.46 billion, representing a shareholding ratio of around 13%. The additional funding is contingent upon general conditions being met. SoftBank plans to execute the investment across three tranches scheduled for April 01, July 01, and October 01, 2026. The funds will initially be sourced from bridge loans from major financial institutions and subsequently transitioned to asset utilization and various fundraising methods.

Masayoshi Son, Chairman and CEO of SoftBank Group Corp., commented, “Artificial intelligence is rapidly transforming the world. OpenAI leads with top-tier technology and unparalleled resources, and we are confident in their growth trajectory. This additional investment will accelerate research and development, as well as expand their ecosystem, advancing our ASI strategy.” Sam Altman, CEO of OpenAI, stated, “We continue to pioneer in AI infrastructure, research, and products. SoftBank is an ideal long-term partner in maximizing the benefits of AI globally.”.

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