SCHEDULE: Highbridge Capital Discloses 1.4% Stake in SilverBox Corp IV

Highbridge Capital Management LLC has disclosed a 1.4% beneficial ownership stake in SilverBox Corp IV's Class A Ordinary Shares.

Summary

• Highbridge Capital Management LLC, an investment adviser, reported beneficial ownership of SilverBox Corp IV.
• The reported stake consists of 280,000 Class A Ordinary Shares.
• This represents 1.4% of the Class A Ordinary Shares outstanding.
• The shares are issuable upon conversion of Class B Ordinary Shares directly held by the Highbridge Funds.
• The percentage is calculated based on an aggregate of 20,455,000 Class A Ordinary Shares outstanding as of August 12, 2025.

Sentiment

Score: 5

Explanation: Neutral, as this is a routine beneficial ownership disclosure and does not inherently convey positive or negative sentiment about the issuer's performance or prospects.

Future Outlook

NA

Industry Context

This filing is a standard disclosure of beneficial ownership by an investment adviser in a publicly traded company. It does not provide specific industry context beyond the fact that Highbridge Capital Management is an active investor in the market.

Stakeholder Impact

• This filing informs shareholders and the market about Highbridge Capital Management LLC's current stake in SilverBox Corp IV, providing transparency regarding significant ownership positions.

Key Dates

Keywords

SilverBox Corp IV, Highbridge Capital Management, Beneficial Ownership, Schedule 13G, Class A Ordinary Shares, Investment Adviser, Equity Stake