Form 4: Magnetar Entities Sell CoreWeave Shares; Indirect Holdings Remain

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

The Form 4 disclosed multiple sales of Class A common stock by Magnetar-affiliated entities on 09/15/2025 with weighted-average prices and price ranges provided.

Q: What price information was provided for the sales?

Weighted-average prices and price ranges were disclosed; ranges include $119.61–$120.52, $120.65–$120.90, and $119.86–$120.68.

Q: Do the reporting parties still hold CoreWeave shares?

Yes. The filing shows continued indirect beneficial ownership of CoreWeave shares held by various Magnetar-managed funds as identified in the footnotes.

Q: Did the filers claim beneficial ownership of the sold shares?

The filers disclaim beneficial ownership of the shares except to the extent of their pecuniary interest, as stated in the footnotes.

Filing Impact

(Very High)

Filing Sentiment

(Very Negative)

Form Type

Rhea-AI Filing Summary

Insiders affiliated with Magnetar disclosed multiple sales of CoreWeave Class A common stock on 09/15/2025. The Form 4 shows numerous dispositions by Magnetar Financial LLC and related entities, executed at weighted-average prices reported in three ranges: $119.61–$120.52, $120.65–$120.90, and $119.86–$120.68. The filing lists many individual sell transactions across several Magnetar-managed funds and indicates sizable continuing indirect beneficial ownership of CoreWeave shares held by those funds. The report includes footnotes identifying which fund directly holds each block of shares and states that the reporting parties disclaim beneficial ownership except for pecuniary interest.

Positive

Detailed transparency about each block sold with footnotes identifying the specific Magnetar funds that directly held the shares
Price ranges and weighted-average prices are disclosed, allowing precise post-trade reconstruction if requested
Reporting parties retain substantial indirect ownership through multiple funds, as indicated in the filing

Negative

Multiple insider dispositions of Class A common stock were reported, indicating realized insider sales across Magnetar-managed accounts
Concentrated selling on a single date may be viewed by some investors as increased insider liquidity or reduced near-term insider conviction

Insights

TL;DR: Magnetar entities executed multiple block sales of CRWV Class A stock at around $120 per share while retaining material indirect stakes.

The filing documents concentrated dispositions by Magnetar-affiliated funds and related managers, with weighted-average prices disclosed and price ranges provided for accuracy. Although the sales reduce direct holdings reported in specific accounts, the reporting persons maintain substantial indirect ownership through multiple funds. For investors, the filing is a clear disclosure of insider liquidity but does not by itself provide information about future trading activity or strategic intent.

TL;DR: Multiple related reporting persons reported coordinated sales; ownership remains routed through a complex fund structure.

The Form 4 includes detailed footnotes mapping each sold block to specific Magnetar funds and explains the organizational relationships among Magnetar Financial, Magnetar Capital Partners, Supernova Management and David J. Snyderman. The disclosures include disclaimers of beneficial ownership except for pecuniary interest, which is standard for fund-managed holdings. This filing improves transparency about which entities directly held the disposed shares but contains no new operational or financial disclosures about the issuer.

Insider Trade Summary

Net Seller: 535,055 shares ($64,167,745)

Net Sell 25 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 535,055 shs ($64.17M)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock	33,044	$119.90	$3.96M
Sale	Class A Common Stock	2,416	$120.74	$292K
Sale	Class A Common Stock	145,998	$119.92	$17.51M
Sale	Class A Common Stock	804	$120.88	$97K
Sale	Class A Common Stock	19,143	$119.92	$2.30M
Sale	Class A Common Stock	106	$120.88	$13K
Sale	Class A Common Stock	1,981	$119.92	$238K
Sale	Class A Common Stock	11	$120.88	$1K
Sale	Class A Common Stock	42,670	$119.92	$5.12M
Sale	Class A Common Stock	235	$120.88	$28K
Sale	Class A Common Stock	58,579	$119.92	$7.02M
Sale	Class A Common Stock	323	$120.88	$39K
Sale	Class A Common Stock	73,428	$119.92	$8.81M
Sale	Class A Common Stock	405	$120.88	$49K
Sale	Class A Common Stock	16,592	$119.92	$1.99M
Sale	Class A Common Stock	92	$120.88	$11K
Sale	Class A Common Stock	62,462	$119.92	$7.49M
Sale	Class A Common Stock	344	$120.88	$42K
Sale	Class A Common Stock	38,495	$119.92	$4.62M
Sale	Class A Common Stock	212	$120.88	$26K
Sale	Class A Common Stock	31,011	$119.92	$3.72M
Sale	Class A Common Stock	171	$120.88	$21K
Sale	Class A Common Stock	6,497	$119.92	$779K
Sale	Class A Common Stock	36	$120.88	$4K
holding	Class A Common Stock	--	--	--

Holdings After Transaction: Class A Common Stock — 7,039,799 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 $119.61 to $120.52, 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. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $120.65 to $120.90, inclusive. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $119.86 to $120.68, 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, 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"). 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. These securities are held directly by Magnetar SC Fund Ltd. These securities are held directly by Magnetar Structured Credit Fund, LP. These securities are held directly by Magnetar Xing He Master Fund Ltd. These securities are held directly by Purpose Alternative Credit Fund - F LLC. These securities are held directly by Purpose Alternative Credit Fund - T LLC. These securities are held directly by Longhorn Special Opportunities Fund LP.

Form 4 Insider Transactions: What Each Field Means →

09/17/2025 - 08:38 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)
09/15/2025

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	09/15/2025		S		33,044	D	$119.9⁽¹⁾	7,039,799	I	Footnotes⁽⁴⁾⁽⁵⁾⁽⁶⁾⁽⁷⁾
Class A Common Stock	09/15/2025		S		2,416	D	$120.74⁽²⁾	7,037,383	I	Footnotes⁽⁴⁾⁽⁵⁾⁽⁶⁾⁽⁷⁾
Class A Common Stock	09/15/2025		S		145,998	D	$119.92⁽³⁾	28,414,345	I	Footnotes⁽⁴⁾⁽⁵⁾⁽⁶⁾⁽⁸⁾
Class A Common Stock	09/15/2025		S		804	D	$120.88	28,413,541	I	Footnotes⁽⁴⁾⁽⁵⁾⁽⁶⁾⁽⁸⁾
Class A Common Stock	09/15/2025		S		19,143	D	$119.92⁽³⁾	2,389,325	I	Footnotes⁽⁴⁾⁽⁵⁾⁽⁶⁾⁽⁹⁾
Class A Common Stock	09/15/2025		S		106	D	$120.88	2,389,219	I	Footnotes⁽⁴⁾⁽⁵⁾⁽⁶⁾⁽⁹⁾
Class A Common Stock	09/15/2025		S		1,981	D	$119.92⁽³⁾	385,152	I	Footnotes⁽⁴⁾⁽⁵⁾⁽⁶⁾⁽¹⁰⁾
Class A Common Stock	09/15/2025		S		11	D	$120.88	385,141	I	Footnotes⁽⁴⁾⁽⁵⁾⁽⁶⁾⁽¹⁰⁾
Class A Common Stock	09/15/2025		S		42,670	D	$119.92⁽³⁾	6,846,763	I	Footnotes⁽⁴⁾⁽⁵⁾⁽⁶⁾⁽¹¹⁾
Class A Common Stock	09/15/2025		S		235	D	$120.88	6,846,528	I	Footnotes⁽⁴⁾⁽⁵⁾⁽⁶⁾⁽¹¹⁾
Class A Common Stock	09/15/2025		S		58,579	D	$119.92⁽³⁾	8,730,608	I	Footnotes⁽⁴⁾⁽⁵⁾⁽⁶⁾⁽¹²⁾
Class A Common Stock	09/15/2025		S		323	D	$120.88	8,730,285	I	Footnotes⁽⁴⁾⁽⁵⁾⁽⁶⁾⁽¹²⁾
Class A Common Stock	09/15/2025		S		73,428	D	$119.92⁽³⁾	9,613,563	I	Footnotes⁽⁴⁾⁽⁵⁾⁽⁶⁾⁽¹³⁾
Class A Common Stock	09/15/2025		S		405	D	$120.88	9,613,158	I	Footnotes⁽⁴⁾⁽⁵⁾⁽⁶⁾⁽¹³⁾
Class A Common Stock	09/15/2025		S		16,592	D	$119.92⁽³⁾	1,892,960	I	Footnotes⁽⁴⁾⁽⁵⁾⁽⁶⁾⁽¹⁴⁾
Class A Common Stock	09/15/2025		S		92	D	$120.88	1,892,868	I	Footnotes⁽⁴⁾⁽⁵⁾⁽⁶⁾⁽¹⁴⁾
Class A Common Stock	09/15/2025		S		62,462	D	$119.92⁽³⁾	11,248,236	I	Footnotes⁽⁴⁾⁽⁵⁾⁽⁶⁾⁽¹⁵⁾
Class A Common Stock	09/15/2025		S		344	D	$120.88	11,247,892	I	Footnotes⁽⁴⁾⁽⁵⁾⁽⁶⁾⁽¹⁵⁾
Class A Common Stock	09/15/2025		S		38,495	D	$119.92⁽³⁾	4,820,026	I	Footnotes⁽⁴⁾⁽⁵⁾⁽⁶⁾⁽¹⁶⁾
Class A Common Stock	09/15/2025		S		212	D	$120.88	4,819,814	I	Footnotes⁽⁴⁾⁽⁵⁾⁽⁶⁾⁽¹⁶⁾
Class A Common Stock	09/15/2025		S		31,011	D	$119.92⁽³⁾	4,283,565	I	Footnotes⁽⁴⁾⁽⁵⁾⁽⁶⁾⁽¹⁷⁾
Class A Common Stock	09/15/2025		S		171	D	$120.88	4,283,394	I	Footnotes⁽⁴⁾⁽⁵⁾⁽⁶⁾⁽¹⁷⁾
Class A Common Stock	09/15/2025		S		6,497	D	$119.92⁽³⁾	1,134,770	I	Footnotes⁽⁴⁾⁽⁵⁾⁽⁶⁾⁽¹⁸⁾
Class A Common Stock	09/15/2025		S		36	D	$120.88	1,134,734	I	Footnotes⁽⁴⁾⁽⁵⁾⁽⁶⁾⁽¹⁸⁾
Class A Common Stock								4,417,607	I	Footnotes⁽⁴⁾⁽⁵⁾⁽⁶⁾⁽¹⁹⁾

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 $119.61 to $120.52, 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 $120.65 to $120.90, inclusive.

3. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $119.86 to $120.68, inclusive.

4. 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").

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 CW Opportunity 2 LP.

8. These securities are held directly by CW Opportunity LLC.

9. These securities are held directly by Magnetar Alpha Star Fund LLC.

10. These securities are held directly by Magnetar Capital Master Fund, Ltd.

11. These securities are held directly by Magnetar Constellation Master Fund, Ltd.

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

13. These securities are held directly by Magnetar Longhorn Fund LP.

14. These securities are held directly by Magnetar SC Fund Ltd.

15. These securities are held directly by Magnetar Structured Credit Fund, LP.

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

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. 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.

Source: View Original Filing on SEC EDGAR

FAQ

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

The Form 4 disclosed multiple sales of Class A common stock by Magnetar-affiliated entities on 09/15/2025 with weighted-average prices and price ranges provided.

Which entities reported the sales of CRWV shares?

Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC, and David J. Snyderman are named as reporting persons with related fund footnotes.

What price information was provided for the sales?

Weighted-average prices and price ranges were disclosed; ranges include $119.61–$120.52, $120.65–$120.90, and $119.86–$120.68.

Do the reporting parties still hold CoreWeave shares?

Yes. The filing shows continued indirect beneficial ownership of CoreWeave shares held by various Magnetar-managed funds as identified in the footnotes.

Did the filers claim beneficial ownership of the sold shares?

The filers disclaim beneficial ownership of the shares except to the extent of their pecuniary interest, as stated in the footnotes.

Form 4: Magnetar Entities Sell CoreWeave Shares; Indirect Holdings Remain

Rhea-AI Filing Summary

Positive

Negative

Insights

Securities Analyst neutral

Corporate Governance Expert neutral

Insider Trade Summary

FAQ

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

Which entities reported the sales of CRWV shares?

What price information was provided for the sales?

Do the reporting parties still hold CoreWeave shares?

Did the filers claim beneficial ownership of the sold shares?