X0508 4 2025-03-31 0 0001769628 CoreWeave, Inc. CRWV 0001352851 Magnetar Financial LLC 1603 ORRINGTON AVENUE 13TH FLOOR EVANSTON IL 60201 0 0 1 0 0001353085 Magnetar Capital Partners LP 1603 ORRINGTON AVENUE 13TH FLOOR EVANSTON IL 60201 0 0 1 0 0001368026 Supernova Management LLC 1603 ORRINGTON AVENUE 13TH FLOOR EVANSTON IL 60201 0 0 1 0 0001953511 Snyderman David J. 1603 ORRINGTON AVENUE 13TH FLOOR EVANSTON IL 60201 0 0 1 0 0 Class A Common Stock 2025-03-31 4 C 0 6528260 A 6528260 I Footnotes Class A Common Stock 2025-03-31 4 C 0 5118220 A 5118220 I Footnotes Class A Common Stock 2025-03-31 4 C 0 2021480 A 2021480 I Footnotes Class A Common Stock 2025-03-31 4 C 0 9102460 A 10182360 I Footnotes Class A Common Stock 2025-03-31 4 C 0 1161280 A 4523780 I Footnotes Class A Common Stock 2025-03-31 4 C 0 645160 A 1185100 I Footnotes Class A Common Stock 2025-03-31 4 C 0 1354820 A 9184380 I Footnotes Class A Common Stock 2025-03-31 4 C 0 2537600 A 2537600 I Footnotes Class A Common Stock 2025-03-31 4 C 0 301060 A 301060 I Footnotes Class A Common Stock 2025-03-31 4 C 0 1937420 A 2582200 I Footnotes Class A Common Stock 2025-03-31 4 C 0 29545300 A 29545300 I Footnotes Class A Common Stock 2025-03-31 4 C 0 649029 A 7177289 I Footnotes Class A Common Stock 2025-03-31 4 C 0 99424 A 400484 I Footnotes Class A Common Stock 2025-03-31 4 C 0 1835407 A 4417607 I Footnotes Class A Common Stock 2025-03-31 4 C 0 6502368 A 7792568 I Footnotes Series B Preferred Stock 2025-03-31 4 C 0 6528260 0 D Class A Common Stock 6528260 0 I Footnotes Series B Preferred Stock 2025-03-31 4 C 0 5118220 0 D Class A Common Stock 5118220 0 I Footnotes Series B Preferred Stock 2025-03-31 4 C 0 2021480 0 D Class A Common Stock 2021480 0 I Footnotes Series B Preferred Stock 2025-03-31 4 C 0 9102460 0 D Class A Common Stock 9102460 0 I Footnotes Series B Preferred Stock 2025-03-31 4 C 0 1161280 0 D Class A Common Stock 1161280 0 I Footnotes Series B Preferred Stock 2025-03-31 4 C 0 645160 0 D Class A Common Stock 645160 0 I Footnotes Series B Preferred Stock 2025-03-31 4 C 0 1354820 0 D Class A Common Stock 1354820 0 I Footnotes Series B Preferred Stock 2025-03-31 4 C 0 2537600 0 D Class A Common Stock 2537600 0 I Footnotes Series B Preferred Stock 2025-03-31 4 C 0 301060 0 D Class A Common Stock 301060 0 I Footnotes Series B Preferred Stock 2025-03-31 4 C 0 1937420 0 D Class A Common Stock 1937420 0 I Footnotes Series B Preferred Stock 2025-03-31 4 C 0 29545300 0 D Class A Common Stock 29545300 0 I Footnotes Series C Preferred Stock 2025-03-31 4 C 0 649029 0 D Class A Common Stock 649029 0 I Footnotes Series C Preferred Stock 2025-03-31 4 C 0 99424 0 D Class A Common Stock 99424 0 I Footnotes Series C Preferred Stock 2025-03-31 4 C 0 1835407 0 D Class A Common Stock 1835407 0 I Footnotes Series C Preferred Stock 2025-03-31 4 C 0 6502368 0 D Class A Common Stock 6502368 0 I Footnotes The Series B Preferred Stock and Series C Preferred Stock (together with the Series B Preferred Stock, the "Preferred Stock") had no expiration date. All shares of Preferred Stock automatically converted into Class A common stock (the "Common Stock") of CoreWeave, Inc. (the "Issuer") on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering of its Common Stock. Magnetar Financial LLC ("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 (collectively, the "Magnetar Funds"). Magnetar Capital Partners LP ("Magnetar Capital Partners") is the sole member and parent holding company of Magnetar Financial. Supernova Management LLC ("Supernova Management") is the general partner of Magnetar Capital Partners. The manager of Supernova Management is David J. Snyderman, a citizen of the United States of America. Each of the Magnetar Funds, Magnetar Financial, Magnetar Capital Partners, Supernova Management and David J. Snyderman disclaims beneficial ownership of these shares of Common Stock of the Issuer, except to the extent of its or his pecuniary interest therein. These securities are held directly by Magnetar Constellation Master Fund Ltd. These securities are held directly by Magnetar Xing He Master Fund Ltd. These securities are held directly by Magnetar SC Fund Ltd. These securities are held directly by Magnetar Longhorn Fund LP. These securities are held directly by Purpose Alternative Credit Fund - F LLC. These securities are held directly by Purpose Alternative Credit Fund - T LLC. These securities are held directly by Magnetar Lake Credit Fund LLC. These securities are held directly by Magnetar Alpha Star Fund LLC. These securities are held directly by Magnetar Capital Master Fund. These securities are held directly by Longhorn Special Opportunities Fund LP. These securities are held directly by CW Opportunity LLC. These securities are held directly by CW Opportunity 2 LP. A joint filing agreement was filed as Exhibit 99.1 to the Form 3 jointly filed with the SEC by the Reporting Persons on March 27, 2025 and is incorporated by reference herein. /s/ Hayley A Stein, Attorney-in-Fact for David J. Snyderman, as Manager of Supernova Management LLC, which is the General Partner of Magnetar Capital Partners LP, which is in turn the Sole Member of Magnetar Financial LLC 2025-04-01 /s/ Hayley A Stein, Attorney-in-Fact for David J. Snyderman, as Manager of Supernova Management LLC, which is the General Partner of Magnetar Capital Partners LP 2025-04-01 /s/ Hayley A Stein, Attorney-in-Fact for David J. Snyderman, as Manager of Supernova Management LLC 2025-04-01 /s/ Hayley A Stein, Attorney-in-Fact for David J. Snyderman 2025-04-01