Current Report · Items 1.01, 9.01 · 8-K
SilverBox Corp IV
SBXDNYSEEQUITYCurrent
Entry into a Material Definitive Agreement
Item 1.01 Entry into a Material Definitive Agreement. As previously disclosed, on August 6, 2025, SilverBox Corp IV, a Cayman Islands exempted company, Parataxis Holdings Inc., a Delaware corporation (“Pubco”), PTX Merger Sub I Inc., a Delaware corporation and a wholly-owned subsidiary of Pubco, PTX Merger Sub II LLC, a Delaware limited liability company and a wholly-owned subsidiary of Pubco, Par…
Filed May 4, 2026Accepted May 4, 2026, 4:05 PM EDTCIK 2015947Accession 0001104659-26-054874
Company context
SilverBox Corp IV is a special purpose acquisition company (“SPAC”) sponsored by an affiliate of SilverBox Capital and formed as part of an institutional platform to sponsor a series of SPACs. SBXD completed its $200 million initial public offering in August 2024 and its stock currently trades on NYSE under the ticker “SBXD.” SilverBox Capital is a strategic investment and advisory firm that brings together capital, advice and operating expertise in a single, aligned platform. Learn more at www.sbcap.com.
Current securities
Disclosure sections
Items 1.01, 9.01Select an item to read the extracted section. The as-filed document remains the primary evidence.
Item 1.01Item 1.01 - Entry into Material Agreement
Item 1.01 Entry into a Material Definitive Agreement.
As
previously disclosed, on August 6, 2025, SilverBox Corp IV, a Cayman Islands exempted company, Parataxis Holdings Inc., a Delaware
corporation (“Pubco”), PTX Merger Sub I Inc., a Delaware corporation and a wholly-owned subsidiary of Pubco, PTX Merger Sub II LLC, a
Delaware limited liability company and a wholly-owned subsidiary of Pubco, Parataxis Holdings LLC, a Delaware limited liability
company, SilverBox Sponsor IV LLC, a Delaware limited liability company, solely for certain limited purposes as representative of
the SPAC Shareholders, and Edward Chin, solely for certain limited purposes as representative of the Company Holders, entered into a
business combination agreement (the “Business Combination Agreement”). Capitalized terms used in this Current Report on
Form 8-K but not otherwise defined herein have the meanings given to them in the Business Combination Agreement.
On May 1, 2026,
the parties to the Business Combination Agreement entered into the First Amendment to the Business Combination Agreement (the “First
Amendment”), which amends the Business Combination Agreement to extend the Outside Date from May 6, 2026 to August 6, 2026.
The First Amendment
is filed as Exhibit 2.1 to this Current Report on Form 8-K and the foregoing description thereof is qualified in its entirety by reference
to the full text of the First Amendment and the terms of which are incorporated by reference herein.