---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-26-013403"
form_type: "8-K"
ticker: "NRGV"
cik: "0001828536"
company_name: "Energy Vault Holdings, Inc."
filed_at: "2026-02-11T23:59:59+00:00"
generated_at: "2026-05-16T03:22:06.871779+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Energy Vault proposes $125M convertible note offering due 2031

## Summary
- Offers $125M convertible senior notes due 2031 in private placement; underwriters can purchase additional $25M.
- Notes mature March 1, 2031; interest paid semiannually; conversion settles in cash, stock, or combination.
- Net proceeds to fund capped call costs, redeem $35-45M of existing convertible debentures, and for general corporate.
- Capped call transactions expected to reduce dilution upon conversion of notes.

## SEC filing metadata
- accession: 0001104659-26-013403
- form_type: 8-K
- ticker: NRGV
- cik: 0001828536
- company_name: Energy Vault Holdings, Inc.
- filed_at: 2026-02-11T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1828536/000110465926013403/0001104659-26-013403-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1828536/000110465926013403/tm265927d2_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-26-013403
- JSON: https://secwatch.observer/filing/0001104659-26-013403.json
- Plain text: https://secwatch.observer/filing/0001104659-26-013403.txt

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