SCHEDULE: SoftBank Discloses 8.9% Stake in Energy Vault

SoftBank Vision Fund (AIV M2) L.P. and SB Investment Advisers (UK) Limited report an 8.9% beneficial ownership stake in Energy Vault Holdings, Inc.

Summary

• SoftBank Vision Fund (AIV M2) L.P. holds 15,535,631 shares of Energy Vault Holdings, Inc. common stock.
• The reported stake represents 8.9% of the total outstanding common stock as of March 31, 2026.
• SB Investment Advisers (UK) Limited acts as the alternative investment fund manager for the fund and shares voting and dispositive power over the shares.
• The filing is an Amendment No. 1 to the Schedule 13G, confirming the current ownership position.

Sentiment

Score: 5

Explanation: StockSavvy.ai views this as a neutral regulatory disclosure confirming existing institutional ownership levels without signaling new strategic shifts.

Positives

• Continued institutional backing from a major global investor like SoftBank.
• Clear disclosure of beneficial ownership structure and voting control.

Negatives

• The filing confirms the reporting persons do not intend to influence or change the control of the issuer, which may limit active investor engagement.

Risks

• Market volatility associated with the energy storage sector.
• Potential for future divestment by the reporting persons, which could impact share price liquidity.

Future Outlook

The reporting persons certify that the securities were not acquired for the purpose of changing or influencing the control of the issuer.

Industry Context

StockSavvy.ai notes that this filing reflects the ongoing interest of venture-backed institutional investors in the energy storage and grid-scale technology sector, maintaining stability in the shareholder base.

Comparison to Industry Standards

• The 8.9% stake is consistent with typical venture capital and growth equity holding patterns in pre-profit or early-commercialization energy technology firms.
• The filing follows standard SEC regulatory requirements for passive institutional investors.

Stakeholder Impact

• Provides transparency to shareholders regarding the concentration of ownership.
• Maintains stability for creditors and partners by confirming the continued involvement of a major institutional backer.

Next Steps

• Continued monitoring of future 13G/13D filings for changes in ownership percentage.

Key Dates

Keywords

Energy Vault, SoftBank, Schedule 13G, Energy Storage, Institutional Ownership, EVRG