Sec Form 4 Filing - Magnetar Financial LLC @ CoreWeave, Inc.

Insider filing report for Changes in Beneficial Ownership

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FORM 4

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP
Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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3235-0287

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1. Name and Address of Reporting Person

Magnetar Financial LLC

2. Issuer Name and Ticker or Trading Symbol
CoreWeave, Inc. [ CRWV]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

_____ Director	X __ 10% Owner
_____ Officer (give title below)	_____ Other (specify below)

(Last)

(First)

(Middle)

1603 ORRINGTON AVENUE, 13TH FLOOR

3. Date of Earliest Transaction (MM/DD/YY)
08/22/2025

(Street)

EVANSTON, IL60201

4. If Amendment, Date Original Filed (MM/DD/YY)

6. Individual or Joint/Group Filing (Check Applicable Line)
_____ Form filed by One Reporting Person
__ X __ Form filed by More than One Reporting Person

(City)

(State)

(Zip)

**Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned**
1.Title of Security (Instr. 3)	2. Transaction Date (MM/DD/YY)	2A. Deemed Execution Date, if any (MM/DD/YY)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1.Title of Security (Instr. 3)	2. Transaction Date (MM/DD/YY)	2A. Deemed Execution Date, if any (MM/DD/YY)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Class A Common Stock	08/22/2025		S		20,066	D	$ 98.19	7,506,779	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 4 )}
Class A Common Stock	08/22/2025		S		195	D	$ 98.19	29,192,679	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 5 )}
Class A Common Stock	08/22/2025		S		26	D	$ 98.19	2,491,369	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 6 )}
Class A Common Stock	08/22/2025		S		3	D	$ 98.19	395,704	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 7 )}
Class A Common Stock	08/22/2025		S		57	D	$ 98.19	7,074,235	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 8 )}
Class A Common Stock	08/22/2025		S		79	D	$ 98.19	9,042,898	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 9 )}
Class A Common Stock	08/22/2025		S		98	D	$ 98.19	10,005,014	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 10 )}
Class A Common Stock	08/22/2025		S		22	D	$ 98.19	1,981,409	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 11 )}
Class A Common Stock	08/22/2025		S		84	D	$ 98.19	11,581,221	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 12 )}
Class A Common Stock	08/22/2025		S		52	D	$ 98.19	5,025,245	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 13 )}
Class A Common Stock	08/22/2025		S		42	D	$ 98.19	4,448,883	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 14 )}
Class A Common Stock	08/22/2025		S		9	D	$ 98.19	1,169,408	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 15 )}
Class A Common Stock								4,417,607	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 16 )}

**Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned**
( *e.g.* , puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (MM/DD/YY)	3A. Deemed Execution Date, if any (MM/DD/YY)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)		6. Date Exercisable and Expiration Date (MM/DD/YY)		7. Title and Amount of Underlying Securities (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (MM/DD/YY)	3A. Deemed Execution Date, if any (MM/DD/YY)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)			11. Nature of Indirect Beneficial Ownership (Instr. 4)
Call option (obligation to sell)	$ 160	08/22/2025		S/K^{( 17 )}			205,695	03/20/2026	03/20/2026	Class A Common Stock	205,695	$ 1,542,712.5	205,695	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 5 )}
Put option (right to sell)	$ 70	08/22/2025		P/K^{( 17 )}		205,695		03/20/2026	03/20/2026	Class A Common Stock	205,695	$ 2,056,950	205,695	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 5 )}
Call option (obligation to sell)	$ 160	08/22/2025		S/K^{( 17 )}			26,968	03/20/2026	03/20/2026	Class A Common Stock	26,968	$ 202,260	26,968	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 6 )}
Put option (right to sell)	$ 70	08/22/2025		P/K^{( 17 )}		26,968		03/20/2026	03/20/2026	Class A Common Stock	26,968	$ 269,680	26,968	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 6 )}
Call option (obligation to sell)	$ 160	08/22/2025		S/K^{( 17 )}			2,787	03/20/2026	03/20/2026	Class A Common Stock	2,787	$ 20,902.5	2,787	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 7 )}
Put option (right to sell)	$ 70	08/22/2025		P/K^{( 17 )}		2,787		03/20/2026	03/20/2026	Class A Common Stock	2,787	$ 27,870	2,787	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 7 )}
Call option (obligation to sell)	$ 160	08/22/2025		S/K^{( 17 )}			60,115	03/20/2026	03/20/2026	Class A Common Stock	60,115	$ 450,862.5	60,115	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 8 )}
Put option (right to sell)	$ 70	08/22/2025		P/K^{( 17 )}		60,115		03/20/2026	03/20/2026	Class A Common Stock	60,115	$ 601,150	60,115	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 8 )}
Call option (obligation to sell)	$ 160	08/22/2025		S/K^{( 17 )}			82,531	03/20/2026	03/20/2026	Class A Common Stock	82,531	$ 618,982.5	82,531	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 9 )}
Put option (right to sell)	$ 70	08/22/2025		P/K^{( 17 )}		82,531		03/20/2026	03/20/2026	Class A Common Stock	82,531	$ 825,310	82,531	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 9 )}
Call option (obligation to sell)	$ 160	08/22/2025		S/K^{( 17 )}			103,451	03/20/2026	03/20/2026	Class A Common Stock	103,451	$ 775,882.5	103,451	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 10 )}
Put option (right to sell)	$ 70	08/22/2025		P/K^{( 17 )}		103,451		03/20/2026	03/20/2026	Class A Common Stock	103,451	$ 1,034,510	103,451	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 10 )}
Call option (obligation to sell)	$ 160	08/22/2025		S/K^{( 17 )}			23,374	03/20/2026	03/20/2026	Class A Common Stock	23,374	$ 175,305	23,374	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 11 )}
Put option (right to sell)	$ 70	08/22/2025		P/K^{( 17 )}		23,374		03/20/2026	03/20/2026	Class A Common Stock	23,374	$ 233,740	23,374	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 11 )}
Call option (obligation to sell)	$ 160	08/22/2025		S/K^{( 17 )}			88,000	03/20/2026	03/20/2026	Class A Common Stock	88,000	$ 660,000	88,000	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 12 )}
Put option (right to sell)	$ 70	08/22/2025		P/K^{( 17 )}		88,000		03/20/2026	03/20/2026	Class A Common Stock	88,000	$ 880,000	88,000	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 12 )}

**Reporting Owners**
Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
Magnetar Financial LLC 1603 ORRINGTON AVENUE 13TH FLOOR EVANSTON, IL60201		X
Magnetar Capital Partners LP 1603 ORRINGTON AVENUE 13TH FLOOR EVANSTON, IL60201		X
Supernova Management LLC 1603 ORRINGTON AVENUE 13TH FLOOR EVANSTON, IL60201		X
Snyderman David J. 1603 ORRINGTON AVENUE 13TH FLOOR EVANSTON, IL60201		X

**Signatures**
/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		08/25/2025
Signature of Reporting Person		Date
/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		08/25/2025
Signature of Reporting Person		Date
/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman, as Manager of Supernova Management LLC		08/25/2025
Signature of Reporting Person		Date
/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman		08/25/2025
Signature of Reporting Person		Date

Explanation of Responses:

( 1 )Magnetar Financial LLC ("Magnetar Financial") serves as the investment adviser to each of Magnetar Capital Master Fund, Ltd, Magnetar Constellation Master Fund, Ltd, Magnetar Longhorn Fund LP, Magnetar SC Fund Ltd, Magnetar Xing He Master Fund Ltd, Purpose Alternative Credit Fund - F LLC, Purpose Alternative Credit Fund - T LLC, 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 Alpha Star Fund LLC and Magnetar Lake Credit Fund LLC (collectively, the "Magnetar Funds").
( 2 )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.
( 3 )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.
( 4 )These securities are held directly by CW Opportunity 2 LP.
( 5 )These securities are held directly by CW Opportunity LLC.
( 6 )These securities are held directly by Magnetar Alpha Star Fund LLC.
( 7 )These securities are held directly by Magnetar Capital Master Fund, Ltd.
( 8 )These securities are held directly by Magnetar Constellation Master Fund, Ltd.
( 9 )These securities are held directly by Magnetar Lake Credit Fund LLC.
( 10 )These securities are held directly by Magnetar Longhorn Fund LP.
( 11 )These securities are held directly by Magnetar SC Fund Ltd.
( 12 )These securities are held directly by Magnetar Structured Credit Fund, LP.
( 13 )These securities are held directly by Magnetar Xing He Master Fund Ltd.
( 14 )These securities are held directly by Purpose Alternative Credit Fund - F LLC.
( 15 )These securities are held directly by Purpose Alternative Credit Fund - T LLC.
( 16 )These securities are held directly by Longhorn Special Opportunities Fund LP.
( 17 )The entity holding the underlying shares of Class A common stock (the "Common Stock") of CoreWeave, Inc. entered into a collar arrangement pursuant to which such entity wrote a covered call option and purchased a put option. Only one of the options can be in-the-money on the expiration date, at which time the in-the-money option will be exercised and settled in shares and the other option will expire. If neither option is in-the-money on the expiration date, both options will expire.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

Sec Form 4 Filing - Magnetar Financial LLC @ CoreWeave, Inc. - 2025-08-22