X0508 4 2025-11-13 0 0001828536 Energy Vault Holdings, Inc. NRGV 0001898769 Piconi Robert 4165 EAST THOUSAND OAKS BLVD, SUITE 100 WESTLAKE VILLAGE CA 91362 1 1 1 0 Chief Executive Officer 0 Common Stock 2025-11-13 4 F 0 2642 3.54 D 20197242 D Common Stock 2025-11-14 4 P 0 10000 2.9958 A 20207242 D Common Stock 4307946 I See Footnote Common Stock 4307946 I See Footnote Represents shares withheld by the Issuer to satisfy the reporting person's tax liability on vesting of restricted stock units. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $2.995 to $3. 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 purchased at each separate price within the range set forth in this footnote. Held by Piconi 2021 Delaware Trust for which the Reporting Person serves as investment advisor. Held by Piconi Family 2021 Delaware Trust for which the Reporting Person serves as investment advisor. /s/ Brad Eastman, Chief Legal Officer 2025-11-14