Form 4: Magnetar Funds Divest CoreWeave Class A Stock

Magnetar Financial LLC and related entities, a 10% owner and director group, sold 176,512 shares of CoreWeave, Inc. Class A Common Stock for over $21 million.

Summary

• Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC, and David J. Snyderman, identified as 10% owners and directors, reported transactions.
• The reporting persons disposed of a total of 176,512 shares of CoreWeave, Inc. Class A Common Stock on September 18, 2025.
• The sales were executed at weighted average prices ranging from $120.38 to $122.71 per share.
• The total value of the shares sold amounts to approximately $21,290,780.91.
• Following these transactions, the Magnetar Funds (Magnetar Xing He Master Fund Ltd, Purpose Alternative Credit Fund F LLC, and Purpose Alternative Credit Fund T LLC) collectively beneficially own 9,812,154 shares of Class A Common Stock.
• The transactions were made pursuant to a Rule 10b5-1(c) pre-arranged trading plan.

Sentiment

Score: 3

Explanation: Significant insider selling by a 10% owner and director group, even if pre-planned, can signal a lack of future upside confidence or a move to diversify, potentially impacting investor sentiment negatively.

Positives

• The sales were conducted at relatively high weighted average prices, ranging from $120.38 to $122.71 per share, which is favorable for the selling entities.
• The transactions were executed under a Rule 10b5-1 plan, indicating pre-scheduled sales rather than opportunistic selling based on new, non-public information.

Negatives

• A significant reduction in beneficial ownership by a 10% owner and director group, totaling 176,512 shares, could be perceived negatively by the market.
• The substantial value of shares sold, approximately $21.3 million, represents a notable divestment from the company by a key insider.

Stakeholder Impact

• Shareholders may react negatively to the significant insider selling, potentially leading to downward pressure on the stock price.
• The reduction in ownership by a major institutional investor could be perceived as a decrease in confidence in the company's long-term prospects.

Key Dates

Recommendation

The significant disposition of Class A Common Stock by Magnetar Financial LLC and its related entities, which are 10% owners and directors, suggests a potential lack of conviction in the stock's near-term upside or a strategic decision to reduce exposure. While the transactions were made pursuant to a Rule 10b5-1 plan, the sheer volume of shares sold at these price levels could be interpreted as a bearish signal by the market, warranting a 'sell' recommendation for investors considering the implications of such insider activity.

Keywords

CoreWeave, CRWV, Magnetar Financial, Insider Sale, Form 4, Stock Disposition, 10% Owner, Director, Equity, Rule 10b5-1