SCHEDULE: Magnetar Entities Report 6.36% Stake in Cartesian Growth Corp IV

Magnetar Financial LLC and affiliated entities report beneficial ownership of 1,750,000 Class A ordinary shares, representing 6.36% of Cartesian Growth Corp IV.

Summary

• Magnetar Financial LLC, along with Magnetar Capital Partners LP, Supernova Management LLC, and David J. Snyderman, collectively hold 1,750,000 Class A ordinary shares of Cartesian Growth Corp IV.
• This holding represents approximately 6.36% of the total outstanding shares as of June 30, 2026.
• The filing details the breakdown of shares held across various Magnetar Funds, including Constellation Master Fund, Structured Credit Fund, Alpha Star Fund, Lake Credit Fund, Xing He Master Fund, Waterfront Series A Fund, and Capital Master Fund.
• Magnetar Financial acts as the investment adviser to these funds, exercising voting and investment power.
• The filing is a Schedule 13G, indicating passive ownership.

Sentiment

Score: 3

Explanation: StockSavvy.ai views this as a neutral filing, primarily reporting beneficial ownership changes and not containing significant operational or financial performance data.

Positives

• Significant institutional ownership reported, which can sometimes indicate confidence in the company's long-term prospects.
• Clear disclosure of beneficial ownership, promoting transparency for investors.

Negatives

• The filing does not provide any financial performance data or operational updates, limiting insight into the company's current health.
• The passive nature of the ownership (Schedule 13G) suggests no immediate intent to influence control, which may not be seen as a positive catalyst by all investors.

Risks

• Potential for future changes in beneficial ownership by Magnetar entities could impact share price.
• The company's reliance on external investment funds like those managed by Magnetar could be a risk if those funds alter their investment strategy.

Future Outlook

No forward-looking statements or guidance are provided in this filing, as it is a disclosure of beneficial ownership.

Management Comments

• The filing certifies that the securities were acquired and are held in the ordinary course of business and were not acquired or held for the purpose of or with the effect of changing or influencing the control of the issuer.

Industry Context

StockSavvy.ai notes that Schedule 13G filings are common for institutional investors accumulating significant stakes in publicly traded companies. The passive nature of this filing suggests Magnetar is a significant shareholder but not an activist investor at this time.

Stakeholder Impact

• Shareholders: Increased transparency regarding significant institutional holdings.
• Potential Investors: Information on a substantial shareholder may influence investment decisions.
• Company Management: Awareness of a significant passive ownership stake.

Next Steps

• Continued monitoring of Magnetar's ownership stake for any changes.
• Review of future Cartesian Growth Corp IV filings for operational and financial updates.

Key Dates

Keywords

Beneficial Ownership, Schedule 13G, Cartesian Growth Corp IV, Magnetar Financial, Institutional Investor, Class A Ordinary Shares, Investment Adviser, Shareholder Disclosure