---
schema_version: "secwatch.filing_event.v1"
accession: "0001828536-23-000221"
form_type: "8-K"
ticker: "NRGV"
cik: "0001828536"
company_name: "Energy Vault Holdings, Inc."
filed_at: "2023-12-20T23:59:59+00:00"
generated_at: "2026-06-07T10:00:22.590738+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Energy Vault appoints Stephanie Unwin to Board replacing Zia Huque effective March 2024

## Summary
- Zia Huque (Prime Movers Lab) resigns effective March 7, 2024; no disagreement with company.
- Stephanie Unwin, CEO of Horizon Power, elected as Class II director term expiring 2026.
- Unwin brings over a decade of energy leadership including Synergy and board experience.
- Appointment supports Energy Vault's growth in Australia and Asia-Pacific region.

## SEC filing metadata
- accession: 0001828536-23-000221
- form_type: 8-K
- ticker: NRGV
- cik: 0001828536
- company_name: Energy Vault Holdings, Inc.
- filed_at: 2023-12-20T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 5.02, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1828536/000182853623000221/0001828536-23-000221-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1828536/000182853623000221/nrgv-20231214.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001828536-23-000221
- JSON: https://secwatch.observer/filing/0001828536-23-000221.json
- Plain text: https://secwatch.observer/filing/0001828536-23-000221.txt

## Key facts
- Executive change
  Stephanie Unwin was elected as Class II director at Energy Vault Holdings, Inc..
  - Action: elected
  - Role: Class II director
  source text: On December 14, 2023, the Board elected Stephanie Unwin as a Class II director of the Company, effective as of March 7, 2024, for a term expiring at the Annual Meeting of Shareholders in 2026.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1828536/000182853623000221/0001828536-23-000221-index.htm
- Executive change
  Zia Huque resigned as director at Energy Vault Holdings, Inc..
  - Action: resigned
  - Role: director
  source text: Effective as of the date of Energy Vault’s next quarterly Board meeting on March 7, 2024, Zia Huque has resigned as director of the Company and from the Audit Committee and Compensation Committee of the Board of Directors.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1828536/000182853623000221/0001828536-23-000221-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.