SilverBox Corp IV
For the period ended May 12, 2026. Filed May 12, 2026.
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May 12, 2026 · Filed May 12, 2026
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(Former name or former address, if changed since last report)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
| x | Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) |
|---|---|
| ¨ | Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) |
| ¨ | Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) |
| ¨ | Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) |
Securities registered pursuant to Section 12(b) of the Act:
| Title of each class | Trading Symbol(s) | Name of each exchange on which registered |
|---|---|---|
| Units, each consisting of one Class A ordinary share, $0.0001 par value, and one-third of one redeemable warrant | SBXD.U | New York Stock Exchange LLC |
| Class A ordinary shares included as part of the units | SBXD | New York Stock Exchange LLC |
| Redeemable Warrants included as part of the units, each whole warrant exercisable for one Class A ordinary share at an exercise price of $11.50 | SBXD.WS | New York Stock Exchange LLC |
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).
Emerging growth companyx
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.¨
Item 7.01 Regulation FD.
Attached as Exhibit 99.1 and incorporated herein by reference is the investor presentation for use by SilverBox Corp IV, a Cayman Islands exempted company (the “Company”), in meetings with certain of its shareholders as well as other persons with respect to the transactions contemplated by that certain Business Combination Agreement, dated as of August 5, 2025, as amended on May 1, 2026.
The information in this Item 7.01, including Exhibit 99.1, is furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to liabilities under that section, and shall not be deemed to be incorporated by reference into the filings of the Company under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any general incorporation language in such filings. This Current Report on Form 8-K will not be deemed an admission as to the materiality of any information contained in this Item 7.01, including Exhibit 99.1.
Item 9.01 Financial Statements and Exhibits.
(d) Exhibits.
| Exhibit No. | Description |
| 99.1 | Investor Presentation |
| 104 | Cover Page Interactive Data File (embedded within the Inline XBRL document) |
The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.