SCHEDULE: Rithm Acquisition Corp. Schedule 13G Filing

Hudson Bay Capital Management LP and Sander Gerber report beneficial ownership of 6.34% of Rithm Acquisition Corp.'s Class A Ordinary Shares as of March 31, 2026.

Summary

• Hudson Bay Capital Management LP and Sander Gerber have filed an amended Schedule 13G, reporting their beneficial ownership of Rithm Acquisition Corp. Class A Ordinary Shares.
• As of March 31, 2026, the reporting persons collectively beneficially own 1,499,500 shares, representing 6.34% of the class.
• Hudson Bay Capital Management LP acts as the investment manager for HB Strategies LLC, which holds the securities.
• Sander Gerber is the managing member of Hudson Bay Capital GP LLC, the general partner of the Investment Manager, and disclaims beneficial ownership of these securities.
• The filing indicates that the shares were acquired and are held in the ordinary course of business and not for the purpose of influencing control of the issuer.

Sentiment

Score: 5

Explanation: StockSavvy.ai views this as a neutral filing, as it primarily reports on existing beneficial ownership without new strategic announcements or financial performance data.

Positives

• Reporting persons hold a significant stake (6.34%) in Rithm Acquisition Corp., indicating investor confidence.
• The filing confirms that the securities are held in the ordinary course of business, suggesting a standard investment strategy.

Negatives

• The filing is an amendment to a previous filing, suggesting a change in ownership or reporting status that may warrant further investigation.
• Sander Gerber disclaims beneficial ownership, which could indicate a complex ownership structure or a strategic separation of roles.

Risks

• Potential for future changes in beneficial ownership, which could impact share price.
• The nature of the investment strategy (ordinary course of business) does not provide specific forward-looking risk mitigation details.

Future Outlook

The filing does not contain specific forward-looking statements or guidance. It primarily reports on current beneficial ownership as of a specific date.

Management Comments

• Mr. Gerber disclaims beneficial ownership of these securities.

Industry Context

StockSavvy.ai notes that Schedule 13G filings are standard for institutional investors acquiring a significant stake in a public company, indicating active participation in the capital markets. The 6.34% stake by Hudson Bay Capital Management LP suggests a notable position in Rithm Acquisition Corp.

Stakeholder Impact

• Shareholders: The filing provides transparency on significant beneficial ownership, which can influence investor perception and trading activity.
• Management: The reporting of a substantial stake by an investment manager may signal active engagement or potential influence on corporate strategy.

Next Steps

• Monitor future filings for any changes in beneficial ownership by Hudson Bay Capital Management LP or Sander Gerber.
• Observe Rithm Acquisition Corp.'s strategic developments and financial performance as reported in subsequent filings.

Key Dates

Keywords

Schedule 13G, Rithm Acquisition Corp., Hudson Bay Capital Management LP, Sander Gerber, Class A Ordinary Shares, Beneficial Ownership, SEC Filing, Investment Management