[Form 4] CoreWeave, Inc. Insider Trading Activity

Rhea-AI Filing Summary

CoreWeave, Inc. (CRWV) reporting persons tied to Magnetar sold multiple blocks of Class A common stock on 10/07/2025, totaling 63,318 shares across separate transactions at prices ranging from $137.00 to $137.65

The Form 4 shows these sales were reported by Magnetar-related entities and individuals that disclaim beneficial ownership except for pecuniary interests. Several Magnetar funds and vehicles continue to hold indirect positions, with a reported indirect beneficial ownership line of 9,202,863 shares. The filing is a transaction disclosure rather than a change in control or a derivative exercise.

Positive

• Timely disclosure of insider sales on 10/07/2025 in a Form 4
• Detailed entity structure and footnotes clarify relationships among Magnetar entities and the reporting individual
• Signed attestations by attorney-in-fact show formal execution and compliance

Negative

• Insiders sold 63,318 Class A shares at prices between $137.00 and $137.65, a potentially material amount depending on float
• Majority ownership remains indirect (reported line of 9,202,863 shares), which can complicate transparency around voting and control

Insights

Securities Trading Analyst

Insiders executed multiple sell transactions totaling 63,318 shares on 10/07/2025.

The trades were reported as sales at prices between $137.00 and $137.65, producing a weighted-average disclosure per the footnote. The reporting covers several related entities and aggregates multiple small blocks rather than a single large block sale.

Key dependencies are remaining disclosed indirect holdings (notably 9,202,863 shares) and whether further Form 4s follow; watch for additional filings within days that could change the picture.

Corporate Governance Expert

Filing reflects standard Section 16 disclosure by related investment vehicles and managers.

The form clarifies relationships: Magnetar Financial is an adviser to multiple funds, Magnetar Capital Partners is the parent, Supernova Management is the general partner, and David J. Snyderman is the manager. Each disclaims beneficial ownership except for pecuniary interest, which is typical for pooled-investment structures.

Material governance points to note are the clear multi-entity reporting and the signed attorney-in-fact attestations dated 10/07/2025; investors may monitor for any governance or ownership schedule changes in subsequent filings.

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)
10/07/2025

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	10/07/2025		S		4,128	D	$137.61(1)	6,212,990	I	Footnotes(2)(3)(4)(5)
Class A Common Stock	10/07/2025		S		17,390	D	$137.63(1)	25,027,149	I	Footnotes(2)(3)(4)(6)
Class A Common Stock	10/07/2025		S		8,748	D	$137.63(1)	3,124,742	I	Footnotes(2)(3)(4)(7)
Class A Common Stock	10/07/2025		S		2,280	D	$137.63(1)	1,945,218	I	Footnotes(2)(3)(4)(8)
Class A Common Stock	10/07/2025		S		237	D	$137.63(1)	339,232	I	Footnotes(2)(3)(4)(9)
Class A Common Stock	10/07/2025		S		5,084	D	$137.63(1)	5,856,821	I	Footnotes(2)(3)(4)(10)
Class A Common Stock	10/07/2025		S		6,979	D	$137.63(1)	7,371,547	I	Footnotes(2)(3)(4)(11)
Class A Common Stock	10/07/2025		S		1,976	D	$137.63(1)	1,508,054	I	Footnotes(2)(3)(4)(12)
Class A Common Stock	10/07/2025		S		7,441	D	$137.63(1)	9,799,106	I	Footnotes(2)(3)(4)(13)
Class A Common Stock	10/07/2025		S		4,586	D	$137.63(1)	3,926,924	I	Footnotes(2)(3)(4)(14)
Class A Common Stock	10/07/2025		S		3,695	D	$137.63(1)	3,564,084	I	Footnotes(2)(3)(4)(15)
Class A Common Stock	10/07/2025		S		774	D	$137.63(1)	984,037	I	Footnotes(2)(3)(4)(16)
Class A Common Stock								9,202,863	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 $137.00 to $137.65, 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 Longhorn Special Opportunities Fund LP.

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 Constellation Master Fund, Ltd.

11. These securities are held directly by Magnetar Lake Credit Fund LLC.

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 Magnetar Longhorn 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	10/07/2025
	/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	10/07/2025
	/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman, as Manager of Supernova Management LLC	10/07/2025
	/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman	10/07/2025
	** 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 did CoreWeave insiders (CRWV) report on 10/07/2025?

Reporting persons tied to Magnetar disclosed sales totaling 63,318 Class A shares on 10/07/2025 at prices from $137.00 to $137.65.

How many shares do Magnetar-related entities still indirectly own in CRWV?

The filing shows an indirect beneficial ownership line of 9,202,863 shares reported after the transactions.

Which entities filed the Form 4 for CRWV?

The filing lists Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC, and David J. Snyderman (via attorney-in-fact) as reporting persons.

Were the sales single large trades or multiple transactions?

Footnotes state the reported price is a weighted average and the shares were sold in multiple transactions at prices ranging between $137.00 and $137.65.

Does the Form 4 show any derivative exercises or acquisitions?

No derivative securities were reported; Table II lists no exercised or acquired derivatives in this filing.