SilverBox Corp IV SEC filings SBXDF
SilverBox Corp IV has 97 filings in SEC EDGAR's recent list, going back to Jun 18, 2024. Its latest annual report, Form 10-K, was filed on Mar 19, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 12, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Sep 28, 2026 (other events). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 25-NSE | Delisting notice | Oct 13, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Oct 9, 2026 | — |
| 8-K |
Current report
Other events
|
Sep 28, 2026 | Sep 28, 2026 |
| 8-K |
Current report
Listing notice
|
Sep 25, 2026 | Sep 25, 2026 |
| 10-Q | Quarterly report | Aug 12, 2026 | Jun 30, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 12, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 6, 2026 | — |
| 425 | Filing | Aug 5, 2026 | — |
| 8-K |
Current report
Material agreement
|
Aug 5, 2026 | Aug 4, 2026 |
| DEFA14A | Additional proxy material | Jul 31, 2026 | — |
| DEF 14A | Proxy statement | Jul 17, 2026 | Aug 11, 2026 |
| PRE 14A | Preliminary proxy statement | Jul 7, 2026 | Jul 7, 2026 |
| 10-Q | Quarterly report | May 15, 2026 | Mar 31, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | May 14, 2026 | — |
| 425 | Filing | May 12, 2026 | — |
| 8-K |
Current report
Regulation FD disclosure
|
May 12, 2026 | May 12, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 8, 2026 | — |
| 425 | Filing | May 4, 2026 | — |
| 8-K |
Current report
Material agreement
|
May 4, 2026 | May 1, 2026 |
| 10-K | Annual report | Mar 19, 2026 | Dec 31, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 13, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 12, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 11, 2026 | — |
| 425 | Filing | Feb 4, 2026 | — |
| 425 | Filing | Dec 4, 2025 | — |
| 8-K |
Current report
Other events
|
Dec 4, 2025 | Dec 4, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 14, 2025 | — |
| 10-Q | Quarterly report | Nov 12, 2025 | Sep 30, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 10, 2025 | — |
| 425 | Filing | Nov 6, 2025 | — |
| 8-K |
Current report
Material agreement
|
Nov 6, 2025 | Oct 31, 2025 |
| 425 | Filing | Oct 15, 2025 | — |
| 425 | Filing | Sep 4, 2025 | — |
| 8-K |
Current report
Other events
|
Sep 4, 2025 | Sep 3, 2025 |
| 425 | Filing | Sep 2, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 13, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 13, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 12, 2025 | — |
| 10-Q | Quarterly report | Aug 12, 2025 | Jun 30, 2025 |
| 425 | Filing | Aug 8, 2025 | — |
| 425 | Filing | Aug 7, 2025 | — |
| 8-K/A |
Amended current report
Material agreement, Unregistered share sale
|
Aug 7, 2025 | Aug 6, 2025 |
| 425 | Filing | Aug 7, 2025 | — |
| 425 | Filing | Aug 7, 2025 | — |
| 8-K |
Current report
Material agreement, Unregistered share sale, Regulation FD disclosure
|
Aug 7, 2025 | Aug 6, 2025 |
| 3 | Initial insider ownership | Jul 2, 2025 | Jun 25, 2025 |
| 8-K |
Current report
Officer or director change
|
Jun 27, 2025 | Jun 24, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 20, 2025 | Jun 20, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 9, 2025 | Jun 9, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 14, 2025 | — |
| 10-Q | Quarterly report | May 13, 2025 | Mar 31, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 21, 2025 | — |
| 10-K | Annual report | Mar 13, 2025 | Dec 31, 2024 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 13, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 13, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 10, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 7, 2025 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Nov 14, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Nov 13, 2024 | — |
| 10-Q | Quarterly report | Nov 12, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Other events
|
Oct 4, 2024 | Oct 4, 2024 |
| 3 | Initial insider ownership | Sep 23, 2024 | Sep 23, 2024 |
| 8-K |
Current report
Officer or director change
|
Sep 23, 2024 | Sep 23, 2024 |
| 10-Q | Quarterly report | Sep 23, 2024 | Jun 30, 2024 |
| SC 13G | Ownership over 5% (passive) | Sep 9, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Sep 3, 2024 | — |
| 8-K |
Current report
Other events
|
Aug 23, 2024 | Aug 19, 2024 |
| SC 13G | Ownership over 5% (passive) | Aug 22, 2024 | — |
| 8-K |
Current report
Material agreement, Unregistered share sale, Officer or director change, Bylaw or fiscal year change, Other events
|
Aug 19, 2024 | Aug 15, 2024 |
| 424B4 | Prospectus | Aug 16, 2024 | — |
| EFFECT | Filing | Aug 15, 2024 | — |
| 3 | Initial insider ownership | Aug 15, 2024 | Aug 15, 2024 |
| 3 | Initial insider ownership | Aug 15, 2024 | Aug 15, 2024 |
| 3 | Initial insider ownership | Aug 15, 2024 | Aug 15, 2024 |
| 3 | Initial insider ownership | Aug 15, 2024 | Aug 15, 2024 |
| 3 | Initial insider ownership | Aug 15, 2024 | Aug 15, 2024 |
| 3 | Initial insider ownership | Aug 15, 2024 | Aug 15, 2024 |
| 3 | Initial insider ownership | Aug 15, 2024 | Aug 15, 2024 |
| CERT | Nyse certification | Aug 14, 2024 | — |
| CORRESP | Letter to the SEC | Aug 13, 2024 | — |
| CORRESP | Letter to the SEC | Aug 13, 2024 | — |
| 8-A12B | Filing | Aug 9, 2024 | — |
| CORRESP | Letter to the SEC | Aug 9, 2024 | — |
| S-1/A | Amended registration statement | Aug 9, 2024 | — |
| UPLOAD | Letter from the SEC | Aug 8, 2024 | — |
| CORRESP | Letter to the SEC | Aug 5, 2024 | — |
| S-1/A | Amended registration statement | Aug 5, 2024 | — |
| UPLOAD | Letter from the SEC | Aug 1, 2024 | — |
| CORRESP | Letter to the SEC | Jul 23, 2024 | — |
| S-1/A | Amended registration statement | Jul 23, 2024 | — |
| UPLOAD | Letter from the SEC | Jul 15, 2024 | — |
| S-1 | Registration statement | Jun 18, 2024 | — |
Showing 97 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Blank Checks (SIC 6770)
- Listed as
- SBXDF (OTC), SBXUF (OTC), SBXWF (OTC)
- Fiscal year ends
- December 31
- Headquarters
- Austin, TX
- SEC filer status
- , Emerging growth company
- SEC CIK
- 2015947
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.