[Form 4] CoreWeave, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Magnetar-related entities reported multiple sales of CoreWeave, Inc. (CRWV) Class A common stock on 09/17/2025. The filings show a series of dispositions at weighted-average prices of approximately $119.06, $119.97 and $121.17, with transaction price ranges disclosed as $118.75–$119.50, $119.75–$120.51 and $120.95–$121.50. The Form 4 lists multiple blocks sold across funds (Magnetar Xing He Master Fund Ltd; Purpose Alternative Credit Fund - F LLC; Purpose Alternative Credit Fund - T LLC; Longhorn Special Opportunities Fund LP) while reporting remaining indirect beneficial ownership positions (for example, 4,417,607 shares indirectly held in aggregate). The filing is signed by an attorney-in-fact on behalf of David J. Snyderman and includes customary disclaimers of beneficial ownership except for pecuniary interests.

Positive

• Timely disclosure of all reported transactions on a Form 4, including weighted-average prices and price ranges
• Clear allocation of held shares to specific Magnetar-managed funds and footnote explanations

Negative

• Multiple insider sales of Class A common stock on 09/17/2025, reducing indirect holdings
• Large aggregate dispositions at prices clustered around $119–$121 could be viewed negatively by some investors

Insights

Securities Analyst

TL;DR: Multiple sizable insider dispositions by Magnetar entities on 09/17/2025; prices clustered around $119–$121.

The transactions represent coordinated sales across several Magnetar-managed funds and related entities, disclosed on a Form 4 filed for CoreWeave (CRWV). The filing provides weighted-average prices and price ranges for the multiple trades and reports substantial remaining indirect holdings. From a market-activity standpoint, these are material insider dispositions in size but the Form provides clear pricing ranges and allocation among funds, aiding transparency. The filing does not indicate any derivative activity or changes to derivative positions.

Corporate Governance Expert

TL;DR: Proper Section 16 disclosure filed; sales reduce indirect holdings but disclaimers limit asserted beneficial ownership.

The Form 4 shows that Magnetar Financial, affiliated entities and David J. Snyderman disclosed multiple sales and explicitly disclaim beneficial ownership except to the extent of pecuniary interest. The filing includes footnotes identifying which fund holds which shares and contains the required signature chain via an attorney-in-fact. This meets procedural disclosure standards; the transactions themselves reflect insider selling but the document does not state motives or any change in governance roles.

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
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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 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)
09/17/2025

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	09/17/2025		S		23,651	D	$119.06(1)	4,777,199	I	Footnotes(4)(5)(6)(7)
Class A Common Stock	09/17/2025		S		54,533	D	$119.97(2)	4,722,666	I	Footnotes(4)(5)(6)(7)
Class A Common Stock	09/17/2025		S		29,111	D	$121.17(3)	4,693,555	I	Footnotes(4)(5)(6)(7)
Class A Common Stock	09/17/2025		S		19,054	D	$119.06(1)	4,249,066	I	Footnotes(4)(5)(6)(8)
Class A Common Stock	09/17/2025		S		43,931	D	$119.97(2)	4,205,135	I	Footnotes(4)(5)(6)(8)
Class A Common Stock	09/17/2025		S		23,449	D	$121.17(3)	4,181,686	I	Footnotes(4)(5)(6)(8)
Class A Common Stock	09/17/2025		S		3,991	D	$119.06(1)	1,127,540	I	Footnotes(4)(5)(6)(9)
Class A Common Stock	09/17/2025		S		9,203	D	$119.97(2)	1,118,337	I	Footnotes(4)(5)(6)(9)
Class A Common Stock	09/17/2025		S		4,912	D	$121.17(3)	1,113,425	I	Footnotes(4)(5)(6)(9)
Class A Common Stock								4,417,607	I	Footnotes(4)(5)(6)(10)

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 $118.75 to $119.50, 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 and 3.

2. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $119.75 to $120.51, inclusive.

3. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $120.95 to $121.50, inclusive.

4. Magnetar Financial LLC ("Magnetar Financial") serves as the investment adviser to each of Magnetar Xing He Master Fund Ltd, Purpose Alternative Credit Fund - F LLC, Purpose Alternative Credit Fund - T LLC, and Longhorn Special Opportunities Fund LP (collectively, the "Magnetar Funds").

5. 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.

6. 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.

7. These securities are held directly by Magnetar Xing He Master Fund Ltd.

8. These securities are held directly by Purpose Alternative Credit Fund - F LLC.

9. These securities are held directly by Purpose Alternative Credit Fund - T LLC.

10. 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	09/17/2025
	/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	09/17/2025
	/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman, as Manager of Supernova Management LLC	09/17/2025
	/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman	09/17/2025
	** 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 Magnetar entities report selling in the Form 4 for CoreWeave (CRWV)?

They reported multiple sales of Class A common stock on 09/17/2025 across Magnetar-managed funds and related entities.

At what prices were the CRWV shares sold?

The filing shows weighted-average prices of approximately $119.06, $119.97 and $121.17, with disclosed price ranges of $118.75–$119.50, $119.75–$120.51 and $120.95–$121.50.

How many CRWV shares remain beneficially owned after the reported transactions?

The Form 4 reports various indirect holdings; one aggregate line shows 4,417,607 shares indirectly held following the reported transactions.

Which Magnetar funds are identified as holding or selling CRWV shares?

The footnotes identify Magnetar Xing He Master Fund Ltd, Purpose Alternative Credit Fund - F LLC, Purpose Alternative Credit Fund - T LLC, and Longhorn Special Opportunities Fund LP.

Who signed the Form 4 for these disclosures?

The Form 4 is signed by Hayley A. Stein, Attorney-in-Fact for David J. Snyderman in his capacities related to the Magnetar entities.