Company: SBXD
Filing Date: 2025-08-07
Form Type: 8-K
Source: 0001104659-25-074831
Chunk: 0

Company: SilverBox Corp IV
Filing Date: 2025-08-07
Form: 8-K
Item: Item 1.01
Chunk 0
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Item 1.01 Entry into a Material Definitive Agreement.

Business Combination Agreement

On August 6, 2025 (the “ Execution
Date”), SilverBox Corp IV, a Cayman Islands exempted company (“ SPAC”), Parataxis Holdings Inc., a Delaware
corporation (“ Pubco”), PTX Merger Sub I Inc., a Delaware corporation and a wholly-owned subsidiary of Pubco (“ SPAC
Merger Sub”), PTX Merger Sub II LLC, a Delaware limited liability company and a wholly-owned subsidiary of Pubco (“ Company
Merger Sub”), Parataxis Holdings LLC, a Delaware limited liability company (the “ Company”), SilverBox Sponsor
IV LLC, a Delaware limited liability company (the “ Sponsor”), solely for certain limited purposes as representative
of the SPAC Shareholders (the “ SPAC Representative”), and Edward Chin, solely for certain limited purposes as representative
of the Company Holders (the “ Seller Representative”), entered into a business combination agreement (the “ Business
Combination Agreement” and, the transactions contemplated by the Business Combination Agreement, the “ Business Combination”).
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.

Pursuant to the Business Combination
Agreement, and subject to the terms and conditions set forth therein, (a) SPAC Merger Sub will merge with and into SPAC, with SPAC continuing
as the surviving company (the “ SPAC Merger”), and with each SPAC Shareholder receiving one share of Pubco Class A common
stock (“ Pubco Class A Stock”) for each SPAC Class A Ordinary Share held by such shareholder in accordance with the
terms of the Business Combination Agreement and (b) Company Merger Sub will merge with and into the Company, with the Company continuing
as the surviving entity (the “ Company Merger” and, together with the SPAC Merger, the “ Mergers,”
and the effective time of the Mergers, the “ Effective Time”), and with the Company Holders receiving shares of Pubco
Class A Stock (other than the Key Company Holder (as defined below) who will receive shares of Pubco Class C common stock (“ Pubco
Class C Stockand together with the Pubco Class A Stock, “ Pubco Stock”) in exchange for their Company Units (as
defined below) in accordance with the terms of the Business Combination Agreement. As