SEC FORM 4

FORM 4

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
or Section 30(h) of the Investment Company Act of 1940

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

1. Name and Address of Reporting Person ^*

Magnetar Financial LLC

(Last)

(First)

(Middle)

1603 ORRINGTON AVENUE

13TH FLOOR

(Street)

EVANSTON

60201

(City)

(State)

(Zip)

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)

3. Date of Earliest Transaction (Month/Day/Year)
06/18/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

	Form filed by One Reporting Person
X	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	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 (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	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)

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 (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	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 (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (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: 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 (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Call option (obligation to sell)	$ 200	06/18/2026		E /K ⁽¹⁾			91,114	06/18/2026	06/18/2026	Class A Common Stock	91,114	$ 0	0	I	Footnotes ⁽²⁾ ⁽³⁾ ⁽⁴⁾ ⁽⁵⁾
Put option (right to sell)	$ 82.5	06/18/2026		E /K ⁽¹⁾⁽¹⁷⁾			91,114	06/18/2026	06/18/2026	Class A Common Stock	91,114	$ 0	0	I	Footnotes ⁽²⁾ ⁽³⁾ ⁽⁴⁾ ⁽⁵⁾
Call option (obligation to sell)	$ 200	06/18/2026		E /K ⁽¹⁾			414,002	06/18/2026	06/18/2026	Class A Common Stock	414,002	$ 0	0	I	Footnotes ⁽²⁾ ⁽³⁾ ⁽⁴⁾ ⁽⁶⁾
Put option (right to sell)	$ 82.5	06/18/2026		E /K ⁽¹⁾⁽¹⁷⁾			414,002	06/18/2026	06/18/2026	Class A Common Stock	414,002	$ 0	0	I	Footnotes ⁽²⁾ ⁽³⁾ ⁽⁴⁾ ⁽⁶⁾
Call option (obligation to sell)	$ 200	06/18/2026		E /K ⁽¹⁾			54,277	06/18/2026	06/18/2026	Class A Common Stock	54,277	$ 0	0	I	Footnotes ⁽²⁾ ⁽³⁾ ⁽⁴⁾ ⁽⁷⁾
Put option (right to sell)	$ 82.5	06/18/2026		E /K ⁽¹⁾⁽¹⁷⁾			54,277	06/18/2026	06/18/2026	Class A Common Stock	54,277	$ 0	0	I	Footnotes ⁽²⁾ ⁽³⁾ ⁽⁴⁾ ⁽⁷⁾
Call option (obligation to sell)	$ 200	06/18/2026		E /K ⁽¹⁾			5,612	06/18/2026	06/18/2026	Class A Common Stock	5,612	$ 0	0	I	Footnotes ⁽²⁾ ⁽³⁾ ⁽⁴⁾ ⁽⁸⁾
Put option (right to sell)	$ 82.5	06/18/2026		E /K ⁽¹⁾⁽¹⁷⁾			5,612	06/18/2026	06/18/2026	Class A Common Stock	5,612	$ 0	0	I	Footnotes ⁽²⁾ ⁽³⁾ ⁽⁴⁾ ⁽⁸⁾
Call option (obligation to sell)	$ 200	06/18/2026		E /K ⁽¹⁾			120,993	06/18/2026	06/18/2026	Class A Common Stock	120,993	$ 0	0	I	Footnotes ⁽²⁾ ⁽³⁾ ⁽⁴⁾ ⁽⁹⁾
Put option (right to sell)	$ 82.5	06/18/2026		E /K ⁽¹⁾⁽¹⁷⁾			120,993	06/18/2026	06/18/2026	Class A Common Stock	120,993	$ 0	0	I	Footnotes ⁽²⁾ ⁽³⁾ ⁽⁴⁾ ⁽⁹⁾
Call option (obligation to sell)	$ 200	06/18/2026		E /K ⁽¹⁾			166,109	06/18/2026	06/18/2026	Class A Common Stock	166,109	$ 0	0	I	Footnotes ⁽²⁾ ⁽³⁾ ⁽⁴⁾ ⁽¹⁰⁾
Put option (right to sell)	$ 82.5	06/18/2026		E /K ⁽¹⁾⁽¹⁷⁾			166,109	06/18/2026	06/18/2026	Class A Common Stock	166,109	$ 0	0	I	Footnotes ⁽²⁾ ⁽³⁾ ⁽⁴⁾ ⁽¹⁰⁾
Call option (obligation to sell)	$ 200	06/18/2026		E /K ⁽¹⁾			208,216	06/18/2026	06/18/2026	Class A Common Stock	208,216	$ 0	0	I	Footnotes ⁽²⁾ ⁽³⁾ ⁽⁴⁾ ⁽¹¹⁾
Put option (right to sell)	$ 82.5	06/18/2026		E /K ⁽¹⁾⁽¹⁷⁾			208,216	06/18/2026	06/18/2026	Class A Common Stock	208,216	$ 0	0	I	Footnotes ⁽²⁾ ⁽³⁾ ⁽⁴⁾ ⁽¹¹⁾
Call option (obligation to sell)	$ 200	06/18/2026		E /K ⁽¹⁾			47,045	06/18/2026	06/18/2026	Class A Common Stock	47,045	$ 0	0	I	Footnotes ⁽²⁾ ⁽³⁾ ⁽⁴⁾ ⁽¹²⁾
Put option (right to sell)	$ 82.5	06/18/2026		E /K ⁽¹⁾⁽¹⁷⁾			47,045	06/18/2026	06/18/2026	Class A Common Stock	47,045	$ 0	0	I	Footnotes ⁽²⁾ ⁽³⁾ ⁽⁴⁾ ⁽¹²⁾
Call option (obligation to sell)	$ 200	06/18/2026		E /K ⁽¹⁾			177,116	06/18/2026	06/18/2026	Class A Common Stock	177,116	$ 0	0	I	Footnotes ⁽²⁾ ⁽³⁾ ⁽⁴⁾ ⁽¹³⁾
Put option (right to sell)	$ 82.5	06/18/2026		E /K ⁽¹⁾⁽¹⁷⁾			177,116	06/18/2026	06/18/2026	Class A Common Stock	177,116	$ 0	0	I	Footnotes ⁽²⁾ ⁽³⁾ ⁽⁴⁾ ⁽¹³⁾
Call option (obligation to sell)	$ 200	06/18/2026		E /K ⁽¹⁾			109,158	06/18/2026	06/18/2026	Class A Common Stock	109,158	$ 0	0	I	Footnotes ⁽²⁾ ⁽³⁾ ⁽⁴⁾ ⁽¹⁴⁾
Put option (right to sell)	$ 82.5	06/18/2026		E /K ⁽¹⁾⁽¹⁷⁾			109,158	06/18/2026	06/18/2026	Class A Common Stock	109,158	$ 0	0	I	Footnotes ⁽²⁾ ⁽³⁾ ⁽⁴⁾ ⁽¹⁴⁾
Call option (obligation to sell)	$ 200	06/18/2026		E /K ⁽¹⁾			87,934	06/18/2026	06/18/2026	Class A Common Stock	87,934	$ 0	0	I	Footnotes ⁽²⁾ ⁽³⁾ ⁽⁴⁾ ⁽¹⁵⁾
Put option (right to sell)	$ 82.5	06/18/2026		E /K ⁽¹⁾⁽¹⁷⁾			87,934	06/18/2026	06/18/2026	Class A Common Stock	87,934	$ 0	0	I	Footnotes ⁽²⁾ ⁽³⁾ ⁽⁴⁾ ⁽¹⁵⁾
Call option (obligation to sell)	$ 200	06/18/2026		E /K ⁽¹⁾			18,424	06/18/2026	06/18/2026	Class A Common Stock	18,424	$ 0	0	I	Footnotes ⁽²⁾ ⁽³⁾ ⁽⁴⁾ ⁽¹⁶⁾
Put option (right to sell)	$ 82.5	06/18/2026		E /K ⁽¹⁾⁽¹⁷⁾			18,424	06/18/2026	06/18/2026	Class A Common Stock	18,424	$ 0	0	I	Footnotes ⁽²⁾ ⁽³⁾ ⁽⁴⁾ ⁽¹⁶⁾

Explanation of Responses:

1. In connection with the expiration of a call option and a put option entered into on September 10, 2025, as part of a collar arrangement, both options expired unexercised and for no value on June 18, 2026, as the closing price of the Class A Common Stock on such date was between the call strike price and the put strike price.

2. Magnetar Financial LLC ("Magnetar Financial") serves as the investment adviser to each of CW Opportunity 2 LP, CW Opportunity LLC, 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, and Purpose Alternative Credit Fund - T LLC, the general partner of Magnetar Structured Credit Fund, LP DBA Magnetar Constellation Onshore Fund (They are not separate legal entities), and the manager of Magnetar Alpha Star Fund LLC and Magnetar Lake Credit Fund LLC (collectively, the "Magnetar Funds").

3. 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 administrative manager of Supernova Management is David J. Snyderman, a citizen of the United States of America.

4. 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.

5. These securities are held directly by CW Opportunity 2 LP.

6. These securities are held directly by CW Opportunity LLC.

7. These securities are held directly by Magnetar Alpha Star Fund LLC.

8. These securities are held directly by Magnetar Capital Master Fund, Ltd.

9. These securities are held directly by Magnetar Constellation 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 DBA Magnetar Constellation Onshore Fund (They are not separate legal entities).

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. Expiration of a long derivative security for no value, transaction code "K" only.

	/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman, as Administrative 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	06/23/2026
	** Signature of Reporting Person	Date
	/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman, as Administrative Manager of Supernova Management LLC, which is the General Partner of Magnetar Capital Partners LP	06/23/2026
	** Signature of Reporting Person	Date
	/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman, as Administrative Manager of Supernova Management LLC	06/23/2026
	** Signature of Reporting Person	Date
	/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman	06/23/2026
	** Signature of Reporting Person	Date
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