X0609 4 2026-08-26 0 0001828536 Energy Vault Holdings, Inc. NRGV 0002014396 Unwin Stephanie false 4165 EAST THOUSAND OAKS BLVD, SUITE 100 WESTLAKE VILLAGE CA 91362 1 0 0 0 0 Common Stock 2026-08-26 4 S 0 115000 3.7129 D 182245 D Represents shares sold to satisfy the reporting person's Australian tax liability on vesting of restricted stock units. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $3.615 to $3.905. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. /s/ Amy Blakeway, Chief Legal Officer 2026-08-28