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Energy Vault Holdings, Inc. planned insider sales

In the last twelve months insiders at Energy Vault Holdings, Inc. filed 6 Form 144 notices of planned sales, 3.3 million shares worth $19.4 million at the time of filing, from 3 sellers. The latest, filed 4 September 2026: Beer Michael Thomas (former officer), 50,000 shares worth $189,477, planned for around 4 September 2026 through Fidelity Brokerage Services LLC.

FiledSellerRelationshipSharesValuePlanned saleSold, per Form 4BrokerHow acquiredFiling
4 September 2026Beer Michael ThomasFormer Officer50,000$189,4774 September 2026None on Form 4 yetFidelity Brokerage Services LLCRestricted Stock VestingForm 144
26 August 2026Unwin StephanieDirector115,000$426,98526 August 2026115,000 shares from 26 August 2026Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
6 July 2026Beer Michael ThomasOfficer65,000$265,2006 July 202665,000 shares from 6 July 2026Fidelity Brokerage Services LLCRestricted Stock Vesting; Stock Option ExerciseForm 144
6 April 2026Beer Michael ThomasOfficer65,000$206,7006 April 202665,000 shares from 6 April 2026Fidelity Brokerage Services LLCOptions Granted - 05/16/2024; Restricted Stock VestingForm 144
15 January 2026SoftBank Vision Fund (AIV M2) L.P.10% Stockholder3,000,000$18.1 million15 January 20263,000,000 shares from 15 January 2026Citigroup Global Markets Inc.Acquired through a private investment in public equity (PIPE) transaction in connection with the consummation of the Issuer's business combination.; Acquired upon the automatic conversion of preferred stock immediately prior to the consummation of the Issuer's business combination. The preferred stock was acquired and fully paid for in multiple transactions from July 2019 to September 2021.Form 144
23 December 2025Beer Michael ThomasOfficer50,000$230,00023 December 202550,000 shares from 23 December 2025Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
A Form 144 is the notice an insider files with the SEC before selling restricted or control shares over the Rule 144 thresholds; it says what may be sold, not what was.
Read moreValue is the filer's own aggregate market value. Sold, per Form 4: the same seller's open-market sales on Form 4 from the notice's date to 90 days after, added up, as they appear on the insiders page; a holder who files no Form 4, such as some large holders, never shows one. What is a Form 144?