SCHEDULE 13G 0001352851 XXXXXXXX LIVE Class A common stock, par value 0.000005 per share 03/31/2025 0001769628 CoreWeave, Inc. 21873S108 290 W Mt. Pleasant Ave., Suite 4100 Livingston NJ 07039 Rule 13d-1(b) Magnetar Financial LLC DE 0.00 107962916.00 0.00 107962916.00 107962916.00 N 30.14 IA Magnetar Capital Partners LP DE 0.00 107962916.00 0.00 107962916.00 107962916.00 N 30.14 HC Supernova Management LLC DE 0.00 107962916.00 0.00 107962916.00 107962916.00 N 30.14 HC David J. Snyderman X1 0.00 107962916.00 0.00 107962916.00 107962916.00 N 30.14 HC CoreWeave, Inc. 290 W Mt. Pleasant Ave., Suite 4100 Livingston, NJ, 07039 This statement is filed on behalf of each of the following person (collectively, the "Reporting Persons"): (i) Magnetar Financial LLC ("Magnetar Financial"); (ii) Magnetar Capital Partners LP ("Magnetar Capital Partners"); (iii) Supernova Management LLC ("Supernova Management"); and (iv) David J. Snyderman ("Mr. Snyderman"). This statement relates to shares of Class A common stock, par value $0.000005 ("Common Stock"), of the Issuer (a) held directly by the Magnetar Funds (as defined herein) and (b) issuable to the Magnetar Funds upon (i) the potential exercise of Warrants (the "Warrants") held by the Magnetar Funds and (ii) the potential exercise of Penny Warrants (the "Penny Warrants") held by the Magnetar Funds. The shares of Common Stock, Warrants and Penny Warrants are held by Magnetar Constellation Master Fund, Ltd, Magnetar Xing He Master Fund Ltd, Magnetar SC Fund Ltd, Purpose Alternative Credit Fund - F Ltd, Magnetar Structured Credit Fund, LP; Magnetar Alpha Star Fund LLC, Magnetar Lake Credit Fund LLC, Purpose Alternative Credit Fund - T LLC, Magnetar Capital Master Fund, Longhorn Special Opportunities Fund, CW Opportunity LLC, CW Opportunity 2 LP (collectively, the "Magnetar Funds"). Magnetar Financial serves as the investment adviser to each of Magnetar Constellation Master Fund, Ltd, Magnetar Xing He Master Fund Ltd, Magnetar SC Fund Ltd, Magnetar Longhorn Fund LP, Purpose Alternative Credit Fund - F LLC, Purpose Alternative Credit Fund - T LLC, Magnetar Capital Master Fund, Longhorn Special Opportunities Fund LP, CW Opportunity LLC and CW Opportunity 2 LP, the general partner of Magnetar Structured Credit Fund, LP and the manager of Magnetar Lake Credit Fund LLC and Magnetar Alpha Star Fund LLC, and as such, Magnetar Financial exercises voting and investment power over the securities held for the Magnetar Funds' accounts. The address of the principal business office of each of Magnetar Financial, Magnetar Capital Partners, Supernova Management and Mr. Snyderman is 1603 Orrington Avenue, 13th Floor, Evanston, Illinois 60201. (i) Magnetar Financial is a Delaware limited liability company; (ii) Magnetar Capital Partners is a Delaware limited partnership; (iii) Supernova Management is a Delaware limited liability company; and (iv) Mr. Snyderman is a citizen of the United States of America. N IA HC As of March 31, 2025, each of the Reporting Persons may be deemed to beneficially own 107,962,916 shares of Common Stock. As of March 31, 2025, each of the Reporting Persons may be deemed to be the beneficial owner of 30.14% of the total number of shares of Common Stock then outstanding. 30.14% Magnetar Financial, Magnetar Capital Partners, Supernova Management and Mr. Snyderman: 0 Magnetar Financial, Magnetar Capital Partners, Supernova Management and Mr. Snyderman: 107,962,916 Magnetar Financial, Magnetar Capital Partners, Supernova Management and Mr. Snyderman: 0 Magnetar Financial, Magnetar Capital Partners, Supernova Management and Mr. Snyderman: 107,962,916 Y Y N Magnetar Financial is an investment adviser registered under Section 203 of the Investment Advisors Act of 1940 and serves as the investment adviser, general partner or manager to the Magnetar Funds. As such, Magnetar Financial exercises voting and investment power over the Magnetar Funds. Magnetar Capital Partners is the sole member and parent holding company of Magnetar Financial. Supernova Management is the general partner of Magnetar Capital Partners. The current Manager of Supernova Management is Mr. Snyderman. Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11. Exhibit 99.1. Joint Filing Agreement, by and among the Reporting Persons, dated as of April 1, 2025. Exhibit 99.2. Power of Attorney, dated as of April 1, 2025 filed by the Reporting Persons. Magnetar Financial LLC /s/ Hayley Stein 04/01/2025 Magnetar Capital Partners LP /s/ Hayley Stein 04/01/2025 Supernova Management LLC /s/ Hayley Stein 04/01/2025 David J. Snyderman /s/ Hayley Stein 04/01/2025