Silverbox Corp IV 8-K Filing

FAQ

Key Financial Figures

• $0.0001 — nsisting of one Class A ordinary share, $0.0001 par value, and one-third of one redeema
• $11.50 — ordinary share at an exercise price of $11.50 SBXD.WS New York Stock Exchange LLC

Filing Documents

• tm2524487d14_8k.htm (8-K) — 54KB
• tm2524487d14_ex99-1.htm (EX-99.1) — 9KB
• 0001104659-25-118459.txt ( ) — 295KB
• sbxd-20251204.xsd (EX-101.SCH) — 4KB
• sbxd-20251204_def.xml (EX-101.DEF) — 27KB
• sbxd-20251204_lab.xml (EX-101.LAB) — 37KB
• sbxd-20251204_pre.xml (EX-101.PRE) — 26KB
• tm2524487d14_8k_htm.xml (XML) — 8KB

01 Other Events

Item 8.01 Other Events. On December 4, 2025, Parataxis Holdings LLC ("Parataxis Holdings" or the "Company") issued a press release announcing that it, together with other affiliated entities, has entered into a definitive agreement with Sinsiway Co. Ltd. ("Sinsiway")(KOSDAQ: 290560) in a transaction valued up to KRW 35 billion, which would result in Parataxis Holdings holding a controlling interest in Sinsiway (the "Transaction"). Following the closing of the Transaction, Sinsiway intends to change its corporate name to Parataxis ETH, Inc. and remain listed on the KOSDAQ. The Transaction is subject to certain closing conditions. The Transaction would result in the creation of South Korea's first Ethereum-based treasury platform listed on South Korean public markets, that is anchored by US-based institutional investors with significant experience in managing digital asset investments.

01 Financial Statements and Exhibits

Item 9.01 Financial Statements and Exhibits. (d) Exhibits. Exhibit No. Description 99.1 Press Release of Parataxis Holdings LLC dated December 4, 2025 104 Cover Page Interactive Data File (embedded within the Inline XBRL document) Important Information This Current Report on Form 8-K is being made in respect of the proposed business combination (the "Business Combination") and the other transactions contemplated by the Business Combination Agreement among SilverBox Corp IV ("SBXD"), Parataxis Holdings , and Parataxis Holdings Inc., a holding company that will become the publicly listed company ("PubCo", and together with SBXD and the Company, the "Parties"). The information contained herein does not purport to be all-inclusive and none of SBXD, the Company, PubCo or their respective affiliates makes any representation or warranty, express or implied, as to the accuracy, completeness or reliability of the information contained in this Current Report on Form 8-K. No Offer or Solicitation This Current Report on Form 8-K does not constitute a solicitation of a proxy, consent or authorization with respect to any securities or in respect of the proposed Business Combination. This Current Report on Form 8-K shall also not constitute an offer to sell, a solicitation of an offer to buy, or a recommendation to purchase any securities, nor shall there be any sale of securities in any states or jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. No offering of securities will be made except by means of a prospectus meeting the requirements of the Securities Act of 1933, as amended, or an exemption therefrom. You should not construe the contents of this Current Report on Form 8-K as legal, tax, accounting or investment advice or a recommendation. You should consult your own counsel and tax and financial advisors as to legal and related matters con

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