---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-25-057587"
form_type: "8-K"
ticker: "SBXD"
cik: "0002015947"
company_name: "SilverBox Corp IV"
filed_at: "2025-06-09T23:59:59+00:00"
generated_at: "2026-05-19T17:38:12.421637+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "medium"
source: SEC EDGAR
---

# SilverBox Corp IV signs non-binding LOI to combine with Parataxis Holdings, a Bitcoin-focused digital asset manager

## Summary
- SBXD and Parataxis Holdings entered a non-binding LOI for a business combination to list a Bitcoin-native capital platform publicly.
- Parataxis Holdings contributes economic interests in a South Korea transaction under development, subject to regulatory approvals.
- No definitive agreement executed; deal requires due diligence, board/equity holder approvals, and regulatory clearances.
- Clear Street serves as lead financial advisor to SBXD on the proposed transaction.

## SEC filing metadata
- accession: 0001104659-25-057587
- form_type: 8-K
- ticker: SBXD
- cik: 0002015947
- company_name: SilverBox Corp IV
- filed_at: 2025-06-09T23:59:59+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: medium
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2015947/000110465925057587/0001104659-25-057587-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2015947/000110465925057587/tm2517480d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-25-057587
- JSON: https://secwatch.observer/filing/0001104659-25-057587.json
- Plain text: https://secwatch.observer/filing/0001104659-25-057587.txt

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