---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-26-059390"
form_type: "8-K"
ticker: "SBXD"
cik: "0002015947"
company_name: "SilverBox Corp IV"
filed_at: "2026-05-12T20:10:29+00:00"
generated_at: "2026-05-12T21:06:34.676576+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "medium"
source: SEC EDGAR
---

# SilverBox Corp IV SPAC to merge with Parataxis Holdings, a digital asset manager focused on Korea

## Summary
- Business Combination Agreement dated Aug 5, 2025, amended May 1, 2026.
- Target Parataxis is an institutional digital asset management platform targeting Korean market.
- Merger will create publicly listed company (PubCo) focused on Bitcoin and ETH investments.
- Key risks include Bitcoin price volatility, Korean regulatory/political risks, custody of digital assets.
- No specific financial projections or deal value disclosed in this investor presentation.

## SEC filing metadata
- accession: 0001104659-26-059390
- form_type: 8-K
- ticker: SBXD
- cik: 0002015947
- company_name: SilverBox Corp IV
- filed_at: 2026-05-12T20:10:29+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: medium
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2015947/000110465926059390/0001104659-26-059390-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2015947/000110465926059390/tm2524487d22_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-26-059390
- JSON: https://secwatch.observer/filing/0001104659-26-059390.json
- Plain text: https://secwatch.observer/filing/0001104659-26-059390.txt

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