# SilverBox Corp IV (SBXD-WT) — merger/spac_merger [pending]
Source: SEC API (secapi.ai) · situation sit_f83d1dd55ca1f93191ba · retrieved 2026-08-11T15:52:10.836Z

## Overview
SilverBox Corp IV is a Cayman Islands exempted company and blank-check acquisition vehicle (SPAC) seeking to complete a business combination with Parataxis Holdings LLC, which operates in digital assets and cryptocurrency trading, particularly focused on Bitcoin and South Korean markets.

SilverBox Corp IV (SBXD), a Cayman Islands exempted company, and the parties to its business combination agreement with Parataxis Holdings LLC (the Company) and Parataxis Holdings Inc. (Pubco) executed a Second Amendment on August 4, 2026, extending the Outside Date—the deadline by which closing conditions must be satisfied—from August 6, 2026 to December 31, 2026. The amendment also permits SBXD and the Company to further extend the Outside Date by written notice if SBXD obtains an extension of its SPAC business combination deadline, with the extension period equal to the shorter of the SPAC extension period or a mutually agreed period.

## Terms
- Counterparty: Parataxis Holdings LLC; Parataxis Holdings Inc. · Deal value: $100.0M · Consideration: mixed · Stake: 25.4% · Price/share: $10

## Key dates
- Announced 2026-02-04 · Expiry 2026-12-31 · Expected close 2026-12-31

## Timeline
- 2026-02-04 · 425 (0001104659-26-009883): 425 - SilverBox Corp IV — *Parataxis Holdings is an institutional digital asset management platform combining fee-based asset management activities, principal capital deployment, and internally managed Bitcoin treasury and yield strategies, positioned to capitalize on the ongoing institutionalization of digital assets.* Parataxis Holdings LLC, an institutional digital asset management platform, is combining with SilverBox Corp IV (SBXD), a blank-check company, in a business combination expected to result in a publicly listed company (PubCo) with approximately $240 million in pro forma capital (assuming no redemptions from SBXD's trust account). The transaction values Parataxis Holdings at approximately $100 million on a pre-money basis. Upon closing, PubCo will hold a Bitcoin-centric treasury strategy and deploy capital across asset management, principal strategies, and treasury management activities. The combined company will be led by Parataxis Capital Management (PCM), a New York-based multi-strategy investment firm founded in 2019 with over $100 million in assets under management.
  https://www.sec.gov/Archives/edgar/data/2015947/0001104659-26-009883.txt
- 2026-08-05 · 8-K (0001104659-26-090712): 8-K - SilverBox Corp IV — *SilverBox Corp IV is a Cayman Islands exempted company and blank-check acquisition vehicle (SPAC) seeking to complete a business combination with Parataxis Holdings LLC, which operates in digital assets and cryptocurrency trading, particularly focused on Bitcoin and South Korean markets.* SilverBox Corp IV (SBXD), a Cayman Islands exempted company, and the parties to its business combination agreement with Parataxis Holdings LLC (the Company) and Parataxis Holdings Inc. (Pubco) executed a Second Amendment on August 4, 2026, extending the Outside Date—the deadline by which closing conditions must be satisfied—from August 6, 2026 to December 31, 2026. The amendment also permits SBXD and the Company to further extend the Outside Date by written notice if SBXD obtains an extension of its SPAC business combination deadline, with the extension period equal to the shorter of the SPAC extension period or a mutually agreed period.
  https://www.sec.gov/Archives/edgar/data/2015947/0001104659-26-090712.txt

## Citations
- 0001104659-26-009883 — https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&type=&dateb=&owner=include&count=40&search_text=000110465926009883
- 0001104659-26-090712 — https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&type=&dateb=&owner=include&count=40&search_text=000110465926090712