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

Insider filing report for Changes in Beneficial Ownership

"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>

Here is the list of insider trading transaction codes

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

OMB APPROVAL

OMB Number:

3235-0287

Expires:

November 30, 2011

Estimated average burden hours per response...

0.5

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)
09/30/2025

(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	09/30/2025		S		19,249	D	$ 137.1 ^{( 1 )}	3,808,739	I	Footnotes ^{( 5 )} ^{( 6 )} ^{( 7 )} ^{( 17 )}
Class A Common Stock	09/30/2025		S		1,466	D	$ 138.5	3,807,273	I	Footnotes ^{( 5 )} ^{( 6 )} ^{( 7 )} ^{( 17 )}
Class A Common Stock	09/30/2025		S		45,477	D	$ 139.95 ^{( 2 )}	3,761,796	I	Footnotes ^{( 5 )} ^{( 6 )} ^{( 7 )} ^{( 17 )}
Class A Common Stock	09/30/2025		S		13,192	D	$ 141.29 ^{( 3 )}	3,748,604	I	Footnotes ^{( 5 )} ^{( 6 )} ^{( 7 )} ^{( 17 )}
Class A Common Stock	09/30/2025		S		3,038	D	$ 142.01 ^{( 4 )}	3,745,566	I	Footnotes ^{( 5 )} ^{( 6 )} ^{( 7 )} ^{( 17 )}
Class A Common Stock	09/30/2025		S		4,034	D	$ 137.1 ^{( 1 )}	1,035,293	I	Footnotes ^{( 5 )} ^{( 6 )} ^{( 7 )} ^{( 18 )}
Class A Common Stock	09/30/2025		S		307	D	$ 138.5	1,034,986	I	Footnotes ^{( 5 )} ^{( 6 )} ^{( 7 )} ^{( 18 )}
Class A Common Stock	09/30/2025		S		9,528	D	$ 139.95 ^{( 2 )}	1,025,458	I	Footnotes ^{( 5 )} ^{( 6 )} ^{( 7 )} ^{( 18 )}
Class A Common Stock	09/30/2025		S		2,763	D	$ 141.29 ^{( 3 )}	1,022,695	I	Footnotes ^{( 5 )} ^{( 6 )} ^{( 7 )} ^{( 18 )}
Class A Common Stock	09/30/2025		S		637	D	$ 142.01 ^{( 4 )}	1,022,058	I	Footnotes ^{( 5 )} ^{( 6 )} ^{( 7 )} ^{( 18 )}
Class A Common Stock								9,202,863	I	Footnotes ^{( 5 )} ^{( 6 )} ^{( 7 )} ^{( 14 )}

**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)	$ 200	09/30/2025		S/K^{( 19 )}			30,371	06/18/2026	06/18/2026	Class A Common Stock	30,371	$ 637,791	30,371	I	Footnotes ^{( 5 )} ^{( 6 )} ^{( 7 )} ^{( 8 )}
Put option (right to sell)	$ 115	09/30/2025		P/K^{( 19 )}		30,371		06/18/2026	06/18/2026	Class A Common Stock	30,371	$ 698,533	30,371	I	Footnotes ^{( 5 )} ^{( 6 )} ^{( 7 )} ^{( 8 )}
Call option (obligation to sell)	$ 200	09/30/2025		S/K^{( 19 )}			138,001	06/18/2026	06/18/2026	Class A Common Stock	138,001	$ 2,898,021	138,001	I	Footnotes ^{( 5 )} ^{( 6 )} ^{( 7 )} ^{( 9 )}
Put option (right to sell)	$ 115	09/30/2025		P/K^{( 19 )}		138,001		06/18/2026	06/18/2026	Class A Common Stock	138,001	$ 3,174,023	138,001	I	Footnotes ^{( 5 )} ^{( 6 )} ^{( 7 )} ^{( 9 )}
Call option (obligation to sell)	$ 200	09/30/2025		S/K^{( 19 )}			18,092	06/18/2026	06/18/2026	Class A Common Stock	18,092	$ 379,932	18,092	I	Footnotes ^{( 5 )} ^{( 6 )} ^{( 7 )} ^{( 10 )}
Put option (right to sell)	$ 115	09/30/2025		P/K^{( 19 )}		18,092		06/18/2026	06/18/2026	Class A Common Stock	18,092	$ 416,116	18,092	I	Footnotes ^{( 5 )} ^{( 6 )} ^{( 7 )} ^{( 10 )}
Call option (obligation to sell)	$ 200	09/30/2025		S/K^{( 19 )}			1,871	06/18/2026	06/18/2026	Class A Common Stock	1,871	$ 39,291	1,871	I	Footnotes ^{( 5 )} ^{( 6 )} ^{( 7 )} ^{( 11 )}
Put option (right to sell)	$ 115	09/30/2025		P/K^{( 19 )}		1,871		06/18/2026	06/18/2026	Class A Common Stock	1,871	$ 43,033	1,871	I	Footnotes ^{( 5 )} ^{( 6 )} ^{( 7 )} ^{( 11 )}
Call option (obligation to sell)	$ 200	09/30/2025		S/K^{( 19 )}			40,331	06/18/2026	06/18/2026	Class A Common Stock	40,331	$ 846,951	40,331	I	Footnotes ^{( 5 )} ^{( 6 )} ^{( 7 )} ^{( 12 )}
Put option (right to sell)	$ 115	09/30/2025		P/K^{( 19 )}		40,331		06/18/2026	06/18/2026	Class A Common Stock	40,331	$ 927,613	40,331	I	Footnotes ^{( 5 )} ^{( 6 )} ^{( 7 )} ^{( 12 )}
Call option (obligation to sell)	$ 200	09/30/2025		S/K^{( 19 )}			55,370	06/18/2026	06/18/2026	Class A Common Stock	55,370	$ 1,162,770	55,370	I	Footnotes ^{( 5 )} ^{( 6 )} ^{( 7 )} ^{( 13 )}
Put option (right to sell)	$ 115	09/30/2025		P/K^{( 19 )}		55,370		06/18/2026	06/18/2026	Class A Common Stock	55,370	$ 1,273,510	55,370	I	Footnotes ^{( 5 )} ^{( 6 )} ^{( 7 )} ^{( 13 )}
Call option (obligation to sell)	$ 200	09/30/2025		S/K^{( 19 )}			69,405	06/18/2026	06/18/2026	Class A Common Stock	69,405	$ 1,457,505	69,405	I	Footnotes ^{( 5 )} ^{( 6 )} ^{( 7 )} ^{( 14 )}
Put option (right to sell)	$ 115	09/30/2025		P/K^{( 19 )}		69,405		06/18/2026	06/18/2026	Class A Common Stock	69,405	$ 1,596,315	69,405	I	Footnotes ^{( 5 )} ^{( 6 )} ^{( 7 )} ^{( 14 )}
Call option (obligation to sell)	$ 200	09/30/2025		S/K^{( 19 )}			15,682	06/18/2026	06/18/2026	Class A Common Stock	15,682	$ 329,322	15,682	I	Footnotes ^{( 5 )} ^{( 6 )} ^{( 7 )} ^{( 15 )}
Put option (right to sell)	$ 115	09/30/2025		P/K^{( 19 )}		15,682		06/18/2026	06/18/2026	Class A Common Stock	15,682	$ 360,686	15,682	I	Footnotes ^{( 5 )} ^{( 6 )} ^{( 7 )} ^{( 15 )}
Call option (obligation to sell)	$ 200	09/30/2025		S/K^{( 19 )}			59,039	06/18/2026	06/18/2026	Class A Common Stock	59,039	$ 1,239,819	59,039	I	Footnotes ^{( 5 )} ^{( 6 )} ^{( 7 )} ^{( 16 )}
Put option (right to sell)	$ 115	09/30/2025		P/K^{( 19 )}		59,039		06/18/2026	06/18/2026	Class A Common Stock	59,039	$ 1,357,897	59,039	I	Footnotes ^{( 5 )} ^{( 6 )} ^{( 7 )} ^{( 16 )}

**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		10/02/2025
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		10/02/2025
Signature of Reporting Person		Date
/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman, as Manager of Supernova Management LLC		10/02/2025
Signature of Reporting Person		Date
/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman		10/02/2025
Signature of Reporting Person		Date

Explanation of Responses:

( 1 )The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $136.94 to $137.75, 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 and in footnotes 2, 3 and 4.
( 2 )The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $139.85 to $140.75, inclusive.
( 3 )The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $141.00 to $141.84, inclusive.
( 4 )The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $142.00 to $142.25, inclusive.
( 5 )Magnetar Financial LLC ("Magnetar Financial") serves as the investment adviser to each of CW Opportunity LLC, CW Opportunity 2 LP, Magnetar Capital Master Fund, Ltd, Magnetar Constellation Master Fund, Ltd, Magnetar Longhorn Fund LP, Magnetar SC Fund Ltd, Purpose Alternative Credit Fund - F LLC and Purpose Alternative Credit Fund - T LLC, 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").
( 6 )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.
( 7 )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.
( 8 )These securities are held directly by CW Opportunity 2 LP.
( 9 )These securities are held directly by CW Opportunity LLC.
( 10 )These securities are held directly by Magnetar Alpha Star Fund LLC.
( 11 )These securities are held directly by Magnetar Capital Master Fund, Ltd.
( 12 )These securities are held directly by Magnetar Constellation Master Fund, Ltd.
( 13 )These securities are held directly by Magnetar Lake Credit Fund LLC.
( 14 )These securities are held directly by Magnetar Longhorn Fund LP.
( 15 )These securities are held directly by Magnetar SC Fund Ltd.
( 16 )These securities are held directly by Magnetar Structured Credit Fund, LP.
( 17 )These securities are held directly by Purpose Alternative Credit Fund - F LLC.
( 18 )These securities are held directly by Purpose Alternative Credit Fund - T LLC.
( 19 )The entity holding the underlying shares of Class A common stock (the "Common Stock") of the Issuer 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. - 2025-09-30