Business Context and Reporting Period
Company: SilverBox Corp IV (SBXD)
Filing Type: Form 10-K (Annual Report)
Reporting Period: Fiscal year ended December 31, 2025
Business Model: Special Purpose Acquisition Company (SPAC) incorporated in the Cayman Islands with no operating history or revenues. The Company was formed to effect a business combination with one or more target businesses.
Current Status: On August 6, 2025, the Company entered into a Business Combination Agreement with Parataxis Holdings Inc. The transaction is subject to shareholder approval and other closing conditions. The Company has 24 months from its IPO (August 19, 2024) to complete a business combination, with a current deadline of August 19, 2026.
Key Financial Metrics
| Metric | Year Ended Dec 31, 2025 | Period Inception to Dec 31, 2024 |
|---|---|---|
| Net Income | $5,715,932 | $3,483,171 |
| Interest Income (Trust Account) | $8,692,532 | $3,654,638 |
| General & Administrative Expenses | $2,923,600 | $477,971 |
| Trust Account Balance | $213,347,170 | $204,654,638 |
| Cash (Outside Trust) | $20,931 | $819,362 |
| Working Capital Deficit | ($139,768) | N/A |
| Deferred Underwriting Fee | $10,300,000 | $10,300,000 |
| Deferred Legal Fees | $2,387,237 | $480,178 |
Note: The filing text indicates a subsequent amendment to the underwriting agreement reducing the deferred fee to $6.03 million contingent on the closing of the Parataxis transaction.
Material Changes vs. Prior Period
- Trust Account Growth: The Trust Account balance increased by approximately $8.7 million year-over-year, driven by interest earned on U.S. Treasury Bills. The per-share redemption value rose from $10.23 (2024) to $10.67 (2025).
- Operating Expenses: General and administrative expenses increased significantly to $2.9 million in 2025 compared to $0.5 million in 2024, reflecting increased costs associated with the search for a target and the execution of the Parataxis business combination.
- Liquidity Position: Cash held outside the Trust Account decreased from $819,362 to $20,931, resulting in a working capital deficit of $139,768 as of December 31, 2025.
- Related Party Advances: The Company received a $275,000 advance from the Sponsor in August 2025 to fund operating and transaction expenses, which was not present in the prior period.
Guidance, Outlook, Risks, and Unusual Items
- Business Combination: The Company is actively pursuing a merger with Parataxis Holdings Inc. The transaction involves a re-domiciliation from the Cayman Islands to Delaware. A "Minimum Cash Condition" of $25 million must be met at closing.
- Going Concern: The Company has raised substantial doubt about its ability to continue as a going concern. If a business combination is not consummated by August 19, 2026, the Company will be required to liquidate and dissolve.
- Conflicts of Interest: Management and the Sponsor are affiliated with SilverBox Corp V (SBXE), which completed a $276 million IPO in December 2025. This creates potential conflicts regarding the allocation of business combination opportunities.
- Unusual Items:
- Share-Based Compensation: $53,000 in compensation expense was recorded in 2025 for the transfer of 10,000 Founder Shares to a director.
- Deferred Fees: Significant deferred legal fees ($2.4 million) and underwriting fees ($10.3 million, subject to amendment) are contingent on the completion of the business combination.
- Risks: Risks include the failure to consummate the Parataxis transaction, inability to raise additional working capital, potential dilution from earn-out shares, and geopolitical instability affecting capital markets.
Investor Verification Checklist
- Transaction Status: Verify the current status of the Parataxis Holdings business combination and whether the $25 million minimum cash condition can be met given potential redemptions.
- Underwriting Fee Amendment: Confirm the final status of the deferred underwriting fee reduction from $10.3 million to $6.03 million and the impact on net proceeds.
- Liquidity Runway: Assess the Company's ability to fund operations with only $20,931 in cash outside the Trust Account and reliance on Sponsor advances.
- Redemption Rights: Review the redemption price per share ($10.67) and the potential impact of mass redemptions on the post-transaction capital structure.
- Related Party Transactions: Scrutinize the $275,000 Sponsor advance and the $15,000/month administrative fee arrangement for potential conflicts or repayment terms.