[Form 4] CoreWeave, Inc. Insider Trading Activity

Rhea-AI Filing Summary

CoreWeave, Inc. (CRWV) reporting persons associated with Magnetar disclosed multiple sales of Class A common stock on 09/11/2025. The transactions consist of a series of dispositions totaling 204,416 shares sold at prices in the reported range of $117.25 to $118.05, with a weighted average price shown in one line as $117.98. The Form 4 lists these sales as indirect holdings by various Magnetar-related entities and individuals, and footnotes identify the specific fund or vehicle that holds each block of shares. After the transactions, the filing shows remaining indirect beneficial holdings for the listed entities as reported on the form.

Positive

• None.

Negative

• Magnetar-affiliated holders sold a total of 204,416 shares on 09/11/2025 at prices between $117.25 and $118.05, reducing their reported indirect holdings.

Insights

Securities Analyst

TL;DR Significant block sales by Magnetar-affiliated holders on 09/11/2025 totaling 204,416 shares at ~ $117–$118.

The Form 4 documents coordinated dispositions by a group of Magnetar-related entities and an affiliated individual, all reporting indirect beneficial ownership. The filing is explicit that shares were sold across multiple transactions at prices between $117.25 and $118.05, and it quantifies the total number of shares sold as reported on each line. Such sales reduce the reported indirect stake across several funds and vehicles; the form does not provide any explanation for the sales beyond standard footnote disclaimers. This is a material insider sale disclosure that investors and compliance teams will note for ownership and disclosure tracking.

Corporate Governance Expert

TL;DR Multiple related reporting persons disclosed indirect sales; ownership structure and disclaimers are clearly documented.

The filing thoroughly describes the ownership chain: Magnetar Financial LLC as adviser to multiple funds, Magnetar Capital Partners LP as the parent, Supernova Management LLC as general partner, and David J. Snyderman as manager. Footnotes explicitly allocate which fund holds each block of shares and include the standard disclaimer of beneficial ownership except for pecuniary interest. From a governance and disclosure standpoint, the Form 4 provides the required lineage and transaction detail; it contains no additional commentary or plans explaining the dispositions.

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Magnetar Financial LLC

(Last) (First) (Middle)

1603 ORRINGTON AVENUE

13TH FLOOR

(Street)

EVANSTON IL 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)
09/11/2025

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)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	09/11/2025		S		13,544	D	$117.98(1)	7,072,843	I	Footnotes(2)(3)(4)(5)
Class A Common Stock	09/11/2025		S		56,087	D	$118.05	28,560,343	I	Footnotes(2)(3)(4)(6)
Class A Common Stock	09/11/2025		S		7,354	D	$118.05	2,408,468	I	Footnotes(2)(3)(4)(7)
Class A Common Stock	09/11/2025		S		761	D	$118.05	387,133	I	Footnotes(2)(3)(4)(8)
Class A Common Stock	09/11/2025		S		16,392	D	$118.05	6,889,433	I	Footnotes(2)(3)(4)(9)
Class A Common Stock	09/11/2025		S		22,504	D	$118.05	8,789,187	I	Footnotes(2)(3)(4)(10)
Class A Common Stock	09/11/2025		S		28,208	D	$118.05	9,686,991	I	Footnotes(2)(3)(4)(11)
Class A Common Stock	09/11/2025		S		6,374	D	$118.05	1,909,552	I	Footnotes(2)(3)(4)(12)
Class A Common Stock	09/11/2025		S		23,995	D	$118.05	11,310,698	I	Footnotes(2)(3)(4)(13)
Class A Common Stock	09/11/2025		S		14,788	D	$118.05	4,858,521	I	Footnotes(2)(3)(4)(14)
Class A Common Stock	09/11/2025		S		11,913	D	$118.05	4,314,576	I	Footnotes(2)(3)(4)(15)
Class A Common Stock	09/11/2025		S		2,496	D	$118.05	1,141,267	I	Footnotes(2)(3)(4)(16)
Class A Common Stock								4,417,607	I	Footnotes(2)(3)(4)(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 (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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

1. Name and Address of Reporting Person^*

Magnetar Financial LLC

(Last) (First) (Middle)

1603 ORRINGTON AVENUE

13TH FLOOR

(Street)

EVANSTON IL 60201

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer

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

1. Name and Address of Reporting Person^*

Magnetar Capital Partners LP

(Last) (First) (Middle)

1603 ORRINGTON AVENUE

13TH FLOOR

(Street)

EVANSTON IL 60201

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer

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

1. Name and Address of Reporting Person^*

Supernova Management LLC

(Last) (First) (Middle)

1603 ORRINGTON AVENUE

13TH FLOOR

(Street)

EVANSTON IL 60201

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer

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

1. Name and Address of Reporting Person^*

Snyderman David J.

(Last) (First) (Middle)

1603 ORRINGTON AVENUE

13TH FLOOR

(Street)

EVANSTON IL 60201

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer

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

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 $117.25 to $118.05, 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.

2. 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, Magnetar Xing He Master Fund Ltd, Purpose Alternative Credit Fund - F LLC, Purpose Alternative Credit Fund - T LLC, and Longhorn Special Opportunities Fund 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").

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 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.

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.

	/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	09/11/2025
	/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	09/11/2025
	/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman, as Manager of Supernova Management LLC	09/11/2025
	/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman	09/11/2025
	** Signature of Reporting Person	Date
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.

FAQ

What insider transactions did CoreWeave (CRWV) report on 09/11/2025?

The Form 4 shows Magnetar-affiliated reporting persons disclosed multiple sales totaling 204,416 Class A shares sold on 09/11/2025 at prices in the range $117.25–$118.05.

Who filed the Form 4 disclosing sales in CoreWeave (CRWV)?

The filings were made by Magnetar-related entities: Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC, and an affiliated individual, David J. Snyderman.

Did the Form 4 specify which funds held the sold shares?

Yes. Footnotes explicitly state the specific funds or vehicles holding each block, such as CW Opportunity 2 LP, CW Opportunity LLC, Magnetar Alpha Star Fund LLC, and others listed in the filing.

What price range and weighted average were reported for the CRWV sales?

The filing reports transaction prices ranging from $117.25 to $118.05, and one line shows a weighted average price of $117.98.

Do the reporting persons claim beneficial ownership after the sales?

The filing includes disclaimers that each Magnetar entity and David J. Snyderman disclaims beneficial ownership of the shares except to the extent of pecuniary interest; the form also lists the reported indirect holdings following the transactions.