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)
08/18/2025

(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	08/18/2025		S		44,201	D	$ 100.78	7,074,292	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 4 )}
Class A Common Stock	08/18/2025		S		34,986	D	$ 100.82 ^{( 5 )}	7,526,845	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 6 )}
Class A Common Stock	08/18/2025		S		151,243	D	$ 100.78	29,192,874	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 7 )}
Class A Common Stock	08/18/2025		S		19,829	D	$ 100.78	2,491,395	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 8 )}
Class A Common Stock	08/18/2025		S		2,050	D	$ 100.78	395,707	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 9 )}
Class A Common Stock	08/18/2025		S		60,683	D	$ 100.78	9,042,977	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 10 )}
Class A Common Stock	08/18/2025		S		76,066	D	$ 100.78	10,005,112	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 11 )}
Class A Common Stock	08/18/2025		S		17,187	D	$ 100.78	1,981,431	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 12 )}
Class A Common Stock	08/18/2025		S		64,705	D	$ 100.78	11,581,305	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 13 )}
Class A Common Stock	08/18/2025		S		39,878	D	$ 100.78	5,025,297	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 14 )}
Class A Common Stock	08/18/2025		S		32,124	D	$ 100.78	4,448,925	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 15 )}
Class A Common Stock	08/18/2025		S		6,730	D	$ 100.78	1,169,417	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 16 )}
Class A Common Stock								4,417,607	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 17 )}

**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)	$ 180	08/18/2025		S/K^{( 18 )}			257,634	09/18/2026	09/18/2026	Class A Common Stock	257,634	$ 3,864,510	257,634	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 4 )}
Put option (right to sell)	$ 75	08/18/2025		P/K^{( 18 )}		257,634		09/18/2026	09/18/2026	Class A Common Stock	257,634	$ 4,508,595	257,634	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 4 )}
Call option (obligation to sell)	$ 180	08/18/2025		S/K^{( 18 )}			881,551	09/18/2026	09/18/2026	Class A Common Stock	881,551	$ 13,223,265	881,551	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 7 )}
Put option (right to sell)	$ 75	08/18/2025		P/K^{( 18 )}		881,551		09/18/2026	09/18/2026	Class A Common Stock	881,551	$ 15,427,142.5	881,551	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 7 )}
Call option (obligation to sell)	$ 180	08/18/2025		S/K^{( 18 )}			115,575	09/18/2026	09/18/2026	Class A Common Stock	115,575	$ 1,733,625	115,575	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 8 )}
Put option (right to sell)	$ 75	08/18/2025		P/K^{( 18 )}		115,575		09/18/2026	09/18/2026	Class A Common Stock	115,575	$ 2,022,562.5	115,575	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 8 )}
Call option (obligation to sell)	$ 180	08/18/2025		S/K^{( 18 )}			11,949	09/18/2026	09/18/2026	Class A Common Stock	11,949	$ 179,235	11,949	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 9 )}
Put option (right to sell)	$ 75	08/18/2025		P/K^{( 18 )}		11,949		09/18/2026	09/18/2026	Class A Common Stock	11,949	$ 209,107.5	11,949	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 9 )}
Call option (obligation to sell)	$ 180	08/18/2025		S/K^{( 18 )}			353,703	09/18/2026	09/18/2026	Class A Common Stock	353,703	$ 5,305,545	353,703	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 10 )}
Put option (right to sell)	$ 75	08/18/2025		P/K^{( 18 )}		353,703		09/18/2026	09/18/2026	Class A Common Stock	353,703	$ 6,189,802.5	353,703	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 10 )}
Call option (obligation to sell)	$ 180	08/18/2025		S/K^{( 18 )}			443,363	09/18/2026	09/18/2026	Class A Common Stock	443,363	$ 6,650,445	443,363	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 11 )}
Put option (right to sell)	$ 75	08/18/2025		P/K^{( 18 )}		443,363		09/18/2026	09/18/2026	Class A Common Stock	443,363	$ 7,758,852.5	443,363	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 11 )}
Call option (obligation to sell)	$ 180	08/18/2025		S/K^{( 18 )}			100,176	09/18/2026	09/18/2026	Class A Common Stock	100,176	$ 1,502,640	100,176	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 12 )}
Put option (right to sell)	$ 75	08/18/2025		P/K^{( 18 )}		100,176		09/18/2026	09/18/2026	Class A Common Stock	100,176	$ 1,753,080	100,176	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 12 )}
Call option (obligation to sell)	$ 180	08/18/2025		S/K^{( 18 )}			377,144	09/18/2026	09/18/2026	Class A Common Stock	377,144	$ 5,657,160	377,144	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 13 )}
Put option (right to sell)	$ 75	08/18/2025		P/K^{( 18 )}		377,144		09/18/2026	09/18/2026	Class A Common Stock	377,144	$ 6,600,020	377,144	I	Footnotes ^{( 1 )} ^{( 2 )} ^{( 3 )} ^{( 13 )}

**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		08/19/2025
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		08/19/2025
Signature of Reporting Person		Date
/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman, as Manager of Supernova Management LLC		08/19/2025
Signature of Reporting Person		Date
/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman		08/19/2025
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 Magnetar Constellation Master Fund, Ltd.
( 5 )The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $100.78 to $101.60, inclusive. The reporting person undertakes to provide to CoreWeave, Inc. (the "Issuer"), any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.
( 6 )These securities are held directly by CW Opportunity 2 LP.
( 7 )These securities are held directly by CW Opportunity LLC.
( 8 )These securities are held directly by Magnetar Alpha Star Fund LLC.
( 9 )These securities are held directly by Magnetar Capital Master Fund, Ltd.
( 10 )These securities are held directly by Magnetar Lake Credit Fund LLC.
( 11 )These securities are held directly by Magnetar Longhorn Fund LP.
( 12 )These securities are held directly by Magnetar SC Fund Ltd.
( 13 )These securities are held directly by Magnetar Structured Credit Fund, LP.
( 14 )These securities are held directly by Magnetar Xing He Master Fund Ltd.
( 15 )These securities are held directly by Purpose Alternative Credit Fund - F LLC.
( 16 )These securities are held directly by Purpose Alternative Credit Fund - T LLC.
( 17 )These securities are held directly by Longhorn Special Opportunities Fund LP.
( 18 )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. - 2025-08-18