Magnetar Financial LLC, a ten-percent owner of CoreWeave, Inc. (CRWV), reported the sale of 412,905 shares of Class A Common Stock in a transaction that occurred on October 10, 2025. The disclosure of the sale, valued at approximately $61.66 million, was made public on October 14, 2025. The shares were sold at weighted average prices ranging from $142.02 to $151.31. This sale follows a period of significant appreciation for CoreWeave's stock, which has seen a 254% year-to-date return. Following the transaction, Magnetar Financial still holds a significant position in the company.