SoftBank Vision Fund Reports 8.9% Stake in Energy Vault Holdings, Inc. (NRGV) via SBIA UK

On May 15, 2026, SB Investment Advisers (UK) Limited (SBIA UK) and SoftBank Vision Fund (AIV M2) L.P. filed a Schedule 13G/A with the SEC, reporting a significant increase in their position in Energy Vault Holdings, Inc. (NRGV). As of the event date on March 31, 2026, the reporting persons disclosed beneficial ownership of 15,535,631 shares of Common Stock, representing 8.9% of the total shares outstanding. This marks a substantial increase from the 0.0% ownership previously reported. SoftBank Vision Fund (AIV M2) L.P. is the record holder of the securities, while SBIA UK serves as the alternative investment fund manager (AIFM) with exclusive decision-making authority over the investment. The filing indicates shared voting and dispositive power over the entire 15.5 million share block. The filing was made under Rule 13d-1(c), certifying that the acquisition was not intended to influence or change the control of the issuer.