Form 4: Magnetar Entities Disposed CoreWeave (CRWV) Class A Stock

Q: What did Magnetar disclose on the Form 4 for CoreWeave (CRWV)?

The Form 4 discloses multiple sales of Class A Common Stock executed on 09/16/2025 by Magnetar-affiliated entities, with weighted-average prices reported between $118.93 and $124.65 .

Q: Which Magnetar entities are listed as reporting persons on the Form 4?

Reporting persons include Magnetar Financial LLC , Magnetar Capital Partners LP , Supernova Management LLC , and David J. Snyderman .

Q: Do the filings show remaining ownership after the sales?

Yes; the table lists post-transaction indirect beneficial ownership counts for each entity (for example, holdings such as 7,035,837 , 28,388,978 , and others are shown).

Q: Who signed the Form 4 filings?

The filings were signed by Hayley A. Stein , Attorney-in-Fact for David J. Snyderman in his capacities related to the Magnetar entities, on 09/17/2025 .

Filing Impact

(Very High)

Filing Sentiment

(Very Negative)

Form Type

Rhea-AI Filing Summary

Magnetar-affiliated reporting persons filed a Form 4 disclosing multiple dispositions of Class A Common Stock of CoreWeave, Inc. (CRWV) executed on 09/16/2025. Several Magnetar entities and related parties sold shares in multiple transactions at weighted-average prices reported between $118.93 and $124.65 (with trade ranges noted in footnotes). The filings show remaining indirect beneficial ownership positions for various Magnetar funds and entities, with per-entity post-transaction holdings listed in the table. The submission includes standard disclaimers that the reporting persons disclaim beneficial ownership except for pecuniary interest and identifies the reporting chain from Magnetar Financial LLC up to David J. Snyderman.

Positive

Transparent disclosure of multiple dispositions with weighted-average prices and per-entity post-transaction holdings
Clear ownership chain identified from funds to Magnetar Financial LLC to David J. Snyderman
Required signatures provided, including attorney-in-fact, indicating procedural completeness

Negative

Significant insider selling occurred across Magnetar-affiliated entities on 09/16/2025
Multiple funds reduced holdings, which may be perceived negatively by some market participants

Insights

TL;DR: Multiple sales by Magnetar entities on 09/16/2025 reduce holdings but leave substantial indirect ownership positions.

The Form 4 documents numerous non-derivative dispositions of CoreWeave Class A shares by Magnetar-affiliated entities on 09/16/2025 at weighted-average prices reported between $118.93 and $124.65. The reporting shows granular share counts and post-transaction holdings by entity, indicating the sales were executed across several funds. For investors, the filing transparently records insider selling activity and the continued indirect ownership structure through Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC and David J. Snyderman.

TL;DR: A 10% owner and director group executed coordinated dispositions; filings include required disclaimers and entity structure.

The disclosure identifies the reporting persons as directors and 10% owners and provides the necessary chain of entities and disclaimers. Footnotes specify which Magnetar fund directly holds each block of shares and that the reporting parties disclaim beneficial ownership beyond pecuniary interest. Signatures are provided via attorney-in-fact. The filing meets standard Section 16 reporting formalities and documents that multiple fund-level sales occurred on a single date.

Insider Trade Summary

Net Seller: 185,713 shares ($22,728,817)

Net Sell 29 txns

Insider Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC, Snyderman David J.

Role 10% Owner | 10% Owner | 10% Owner | 10% Owner

Sold 185,713 shs ($22.73M)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock	1,546	$118.93	$184K
Sale	Class A Common Stock	5,403	$121.44	$656K
Sale	Class A Common Stock	5,864	$122.17	$716K
Sale	Class A Common Stock	3,038	$123.51	$375K
Sale	Class A Common Stock	1,519	$124.65	$189K
Sale	Class A Common Stock	24,563	$121.44	$2.98M
Sale	Class A Common Stock	26,647	$122.17	$3.26M
Sale	Class A Common Stock	13,798	$123.51	$1.70M
Sale	Class A Common Stock	6,899	$124.65	$860K
Sale	Class A Common Stock	3,221	$121.44	$391K
Sale	Class A Common Stock	3,493	$122.17	$427K
Sale	Class A Common Stock	1,810	$123.51	$224K
Sale	Class A Common Stock	905	$124.65	$113K
Sale	Class A Common Stock	330	$121.44	$40K
Sale	Class A Common Stock	361	$122.17	$44K
Sale	Class A Common Stock	188	$123.51	$23K
Sale	Class A Common Stock	94	$124.65	$12K
Sale	Class A Common Stock	7,180	$121.44	$872K
Sale	Class A Common Stock	7,788	$122.17	$951K
Sale	Class A Common Stock	4,034	$123.51	$498K
Sale	Class A Common Stock	2,017	$124.65	$251K
Sale	Class A Common Stock	9,852	$121.44	$1.20M
Sale	Class A Common Stock	10,692	$122.17	$1.31M
Sale	Class A Common Stock	5,536	$123.51	$684K
Sale	Class A Common Stock	2,768	$124.65	$345K
Sale	Class A Common Stock	12,354	$121.44	$1.50M
Sale	Class A Common Stock	13,403	$122.17	$1.64M
Sale	Class A Common Stock	6,940	$123.51	$857K
Sale	Class A Common Stock	3,470	$124.65	$433K

Holdings After Transaction: Class A Common Stock — 7,035,837 shares (Indirect, Footnotes)

Footnotes (1)

The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $118.80 to $119.00, 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. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $121.00 to $121.99, inclusive. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $122.07 to $122.73, inclusive. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $123.27 to $123.75, inclusive. 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 and Magnetar Longhorn Fund LP, and the manager of Magnetar Alpha Star Fund LLC and Magnetar Lake Credit Fund LLC (collectively, the "Magnetar Funds"). 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. 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. These securities are held directly by CW Opportunity 2 LP. These securities are held directly by CW Opportunity LLC. These securities are held directly by Magnetar Alpha Star Fund LLC. These securities are held directly by Magnetar Capital Master Fund, Ltd. These securities are held directly by Magnetar Constellation Master Fund, Ltd. These securities are held directly by Magnetar Lake Credit Fund LLC. These securities are held directly by Magnetar Longhorn Fund LP.

Form 4 Insider Transactions: What Each Field Means →

09/17/2025 - 08:40 PM

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).

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)
09/16/2025

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)
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)
Class A Common Stock	09/16/2025		S		1,546	D	$118.93⁽¹⁾	7,035,837	I	Footnotes⁽⁵⁾⁽⁶⁾⁽⁷⁾⁽⁸⁾
Class A Common Stock	09/16/2025		S		5,403	D	$121.44⁽²⁾	7,030,434	I	Footnotes⁽⁵⁾⁽⁶⁾⁽⁷⁾⁽⁸⁾
Class A Common Stock	09/16/2025		S		5,864	D	$122.17⁽³⁾	7,024,570	I	Footnotes⁽⁵⁾⁽⁶⁾⁽⁷⁾⁽⁸⁾
Class A Common Stock	09/16/2025		S		3,038	D	$123.51⁽⁴⁾	7,021,532	I	Footnotes⁽⁵⁾⁽⁶⁾⁽⁷⁾⁽⁸⁾
Class A Common Stock	09/16/2025		S		1,519	D	$124.65	7,020,013	I	Footnotes⁽⁵⁾⁽⁶⁾⁽⁷⁾⁽⁸⁾
Class A Common Stock	09/16/2025		S		24,563	D	$121.44⁽²⁾	28,388,978	I	Footnotes⁽⁵⁾⁽⁶⁾⁽⁷⁾⁽⁹⁾
Class A Common Stock	09/16/2025		S		26,647	D	$122.17⁽³⁾	28,362,331	I	Footnotes⁽⁵⁾⁽⁶⁾⁽⁷⁾⁽⁹⁾
Class A Common Stock	09/16/2025		S		13,798	D	$123.51⁽⁴⁾	28,348,533	I	Footnotes⁽⁵⁾⁽⁶⁾⁽⁷⁾⁽⁹⁾
Class A Common Stock	09/16/2025		S		6,899	D	$124.65	28,341,634	I	Footnotes⁽⁵⁾⁽⁶⁾⁽⁷⁾⁽⁹⁾
Class A Common Stock	09/16/2025		S		3,221	D	$121.44⁽²⁾	2,385,998	I	Footnotes⁽⁵⁾⁽⁶⁾⁽⁷⁾⁽¹⁰⁾
Class A Common Stock	09/16/2025		S		3,493	D	$122.17⁽³⁾	2,382,505	I	Footnotes⁽⁵⁾⁽⁶⁾⁽⁷⁾⁽¹⁰⁾
Class A Common Stock	09/16/2025		S		1,810	D	$123.51⁽⁴⁾	2,380,695	I	Footnotes⁽⁵⁾⁽⁶⁾⁽⁷⁾⁽¹⁰⁾
Class A Common Stock	09/16/2025		S		905	D	$124.65	2,379,790	I	Footnotes⁽⁵⁾⁽⁶⁾⁽⁷⁾⁽¹⁰⁾
Class A Common Stock	09/16/2025		S		330	D	$121.44⁽²⁾	384,811	I	Footnotes⁽⁵⁾⁽⁶⁾⁽⁷⁾⁽¹¹⁾
Class A Common Stock	09/16/2025		S		361	D	$122.17⁽³⁾	384,450	I	Footnotes⁽⁵⁾⁽⁶⁾⁽⁷⁾⁽¹¹⁾
Class A Common Stock	09/16/2025		S		188	D	$123.51⁽⁴⁾	384,262	I	Footnotes⁽⁵⁾⁽⁶⁾⁽⁷⁾⁽¹¹⁾
Class A Common Stock	09/16/2025		S		94	D	$124.65	384,168	I	Footnotes⁽⁵⁾⁽⁶⁾⁽⁷⁾⁽¹¹⁾
Class A Common Stock	09/16/2025		S		7,180	D	$121.44⁽²⁾	6,839,348	I	Footnotes⁽⁵⁾⁽⁶⁾⁽⁷⁾⁽¹²⁾
Class A Common Stock	09/16/2025		S		7,788	D	$122.17⁽³⁾	6,831,560	I	Footnotes⁽⁵⁾⁽⁶⁾⁽⁷⁾⁽¹²⁾
Class A Common Stock	09/16/2025		S		4,034	D	$123.51⁽⁴⁾	6,827,526	I	Footnotes⁽⁵⁾⁽⁶⁾⁽⁷⁾⁽¹²⁾
Class A Common Stock	09/16/2025		S		2,017	D	$124.65	6,825,509	I	Footnotes⁽⁵⁾⁽⁶⁾⁽⁷⁾⁽¹²⁾
Class A Common Stock	09/16/2025		S		9,852	D	$121.44⁽²⁾	8,720,433	I	Footnotes⁽⁵⁾⁽⁶⁾⁽⁷⁾⁽¹³⁾
Class A Common Stock	09/16/2025		S		10,692	D	$122.17⁽³⁾	8,709,741	I	Footnotes⁽⁵⁾⁽⁶⁾⁽⁷⁾⁽¹³⁾
Class A Common Stock	09/16/2025		S		5,536	D	$123.51⁽⁴⁾	8,704,205	I	Footnotes⁽⁵⁾⁽⁶⁾⁽⁷⁾⁽¹³⁾
Class A Common Stock	09/16/2025		S		2,768	D	$124.65	8,701,437	I	Footnotes⁽⁵⁾⁽⁶⁾⁽⁷⁾⁽¹³⁾
Class A Common Stock	09/16/2025		S		12,354	D	$121.44⁽²⁾	9,600,804	I	Footnotes⁽⁵⁾⁽⁶⁾⁽⁷⁾⁽¹⁴⁾
Class A Common Stock	09/16/2025		S		13,403	D	$122.17⁽³⁾	9,587,401	I	Footnotes⁽⁵⁾⁽⁶⁾⁽⁷⁾⁽¹⁴⁾
Class A Common Stock	09/16/2025		S		6,940	D	$123.51⁽⁴⁾	9,580,461	I	Footnotes⁽⁵⁾⁽⁶⁾⁽⁷⁾⁽¹⁴⁾
Class A Common Stock	09/16/2025		S		3,470	D	$124.65	9,576,991	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 (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)

1. Name and Address of Reporting Person^*

Magnetar Financial LLC

(Last)

(First)

(Middle)

1603 ORRINGTON AVENUE

13TH FLOOR

(Street)

EVANSTON

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

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

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

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 $118.80 to $119.00, 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 $121.00 to $121.99, inclusive.

3. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $122.07 to $122.73, inclusive.

4. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $123.27 to $123.75, 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 and Magnetar Longhorn 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.

	/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.

Source: View Original Filing on SEC EDGAR

FAQ

What did Magnetar disclose on the Form 4 for CoreWeave (CRWV)?

The Form 4 discloses multiple sales of Class A Common Stock executed on 09/16/2025 by Magnetar-affiliated entities, with weighted-average prices reported between $118.93 and $124.65.

Which Magnetar entities are listed as reporting persons on the Form 4?

Reporting persons include Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC, and David J. Snyderman.

Do the filings show remaining ownership after the sales?

Yes; the table lists post-transaction indirect beneficial ownership counts for each entity (for example, holdings such as 7,035,837, 28,388,978, and others are shown).

At what price ranges were the shares sold?

Footnotes disclose trade ranges used to calculate weighted-average prices: for example, $118.80–$119.00, $121.00–$121.99, $122.07–$122.73, and $123.27–$123.75.

Who signed the Form 4 filings?

The filings were signed by Hayley A. Stein, Attorney-in-Fact for David J. Snyderman in his capacities related to the Magnetar entities, on 09/17/2025.

Form 4: Magnetar Entities Disposed CoreWeave (CRWV) Class A Stock

Rhea-AI Filing Summary

Positive

Negative

Insights

Financial Analyst neutral

Corporate Governance Expert neutral

Insider Trade Summary

FAQ

What did Magnetar disclose on the Form 4 for CoreWeave (CRWV)?

Which Magnetar entities are listed as reporting persons on the Form 4?

Do the filings show remaining ownership after the sales?

At what price ranges were the shares sold?

Who signed the Form 4 filings?