Magnetar Entities Reduce CoreWeave Stake; 9.20M Shares Remain

Q: Who filed the Form 4 reporting CoreWeave (CRWV) transactions?

Filings were made by Magnetar Financial LLC , Magnetar Capital Partners LP , Supernova Management LLC , and David J. Snyderman acting in related capacities.

Filing Impact

(Very High)

Filing Sentiment

(Very Negative)

Form Type

Rhea-AI Filing Summary

Magnetar-related entities reported multiple disposals of Class A common stock of CoreWeave, Inc. (CRWV) on 10/08/2025. The filings list numerous sale lots executed at weighted-average prices ranging roughly from $137.19 to $140.62, with specific weighted-average prices reported at $137.89, $139.28, $139.86, $140.60, and $139.42.

The reporting parties include Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC, and David J. Snyderman in their capacities tied to multiple Magnetar-managed funds. The filings show these shares are held indirectly by named funds and that, following the reported transactions, an indirect beneficial ownership position of 9,202,863 shares is disclosed.

Positive

Comprehensive disclosure of multiple transactions and weighted-average price ranges enhances transparency
Clear attribution to Magnetar entities and specific funds, aiding investor tracing of ownership

Negative

Substantial share disposals across Magnetar-managed accounts on 10/08/2025 could signal continued reduction in stake
Concentrated indirect ownership remains at 9,202,863 shares, indicating material exposure tied to related funds

Insights

Multiple Magnetar-affiliated entities sold CoreWeave stock on 10/08/2025; filings show continued indirect holdings.

Large, structured disposals were reported across several Magnetar-managed accounts at weighted-average prices spanning about $137–$141. The sales are recorded as indirect holdings across named funds, and the filing explicitly lists an indirect beneficial ownership of 9,202,863 shares following these transactions.

These disclosures improve transparency about concentrated shareholder activity but do not state intent or future plans. Monitor subsequent Form 4 filings for further changes in holdings and any disclosures that would quantify the percentage of outstanding shares these holdings represent within the next few reporting cycles.

Insider Trade Summary

Net Seller: 691,243 shares ($96,403,190)

Net Sell 27 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 691,243 shs ($96.40M)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock	550	$137.89	$76K
Sale	Class A Common Stock	30,919	$139.28	$4.31M
Sale	Class A Common Stock	12,557	$139.86	$1.76M
Sale	Class A Common Stock	1,719	$140.60	$242K
Sale	Class A Common Stock	182,783	$139.42	$25.48M
Sale	Class A Common Stock	6,900	$140.60	$970K
Sale	Class A Common Stock	91,926	$139.42	$12.82M
Sale	Class A Common Stock	3,470	$140.60	$488K
Sale	Class A Common Stock	23,963	$139.42	$3.34M
Sale	Class A Common Stock	905	$140.60	$127K
Sale	Class A Common Stock	2,476	$139.42	$345K
Sale	Class A Common Stock	93	$140.60	$13K
Sale	Class A Common Stock	53,418	$139.42	$7.45M
Sale	Class A Common Stock	2,017	$140.60	$284K
Sale	Class A Common Stock	73,335	$139.42	$10.22M
Sale	Class A Common Stock	2,768	$140.60	$389K
Sale	Class A Common Stock	20,771	$139.42	$2.90M
Sale	Class A Common Stock	784	$140.60	$110K
Sale	Class A Common Stock	78,196	$139.42	$10.90M
Sale	Class A Common Stock	2,952	$140.60	$415K
Sale	Class A Common Stock	48,193	$139.42	$6.72M
Sale	Class A Common Stock	1,819	$140.60	$256K
Sale	Class A Common Stock	38,822	$139.42	$5.41M
Sale	Class A Common Stock	1,466	$140.60	$206K
Sale	Class A Common Stock	8,134	$139.42	$1.13M
Sale	Class A Common Stock	307	$140.60	$43K
holding	Class A Common Stock	--	--	--

Holdings After Transaction: Class A Common Stock — 6,212,440 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 $137.19 to $138.15, 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, 4 and 5. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $138.46 to $139.33, inclusive. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $139.58 to $140.30, inclusive. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $140.60 to $140.62, inclusive. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $139.28 to $140.00, 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 administrative 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 Longhorn Special Opportunities Fund LP. 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 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 Magnetar Longhorn Fund LP.

Form 4 Insider Transactions: What Each Field Means →

10/10/2025 - 08:13 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).

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

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)
10/08/2025

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	10/08/2025		S		550	D	$137.89⁽¹⁾	6,212,440	I	Footnotes⁽⁶⁾⁽⁷⁾⁽⁸⁾⁽⁹⁾
Class A Common Stock	10/08/2025		S		30,919	D	$139.28⁽²⁾	6,181,521	I	Footnotes⁽⁶⁾⁽⁷⁾⁽⁸⁾⁽⁹⁾
Class A Common Stock	10/08/2025		S		12,557	D	$139.86⁽³⁾	6,168,964	I	Footnotes⁽⁶⁾⁽⁷⁾⁽⁸⁾⁽⁹⁾
Class A Common Stock	10/08/2025		S		1,719	D	$140.6⁽⁴⁾	6,167,245	I	Footnotes⁽⁶⁾⁽⁷⁾⁽⁸⁾⁽⁹⁾
Class A Common Stock	10/08/2025		S		182,783	D	$139.42⁽⁵⁾	24,844,366	I	Footnotes⁽⁶⁾⁽⁷⁾⁽⁸⁾⁽¹⁰⁾
Class A Common Stock	10/08/2025		S		6,900	D	$140.6	24,837,466	I	Footnotes⁽⁶⁾⁽⁷⁾⁽⁸⁾⁽¹⁰⁾
Class A Common Stock	10/08/2025		S		91,926	D	$139.42⁽⁵⁾	3,032,816	I	Footnotes⁽⁶⁾⁽⁷⁾⁽⁸⁾⁽¹¹⁾
Class A Common Stock	10/08/2025		S		3,470	D	$140.6	3,029,346	I	Footnotes⁽⁶⁾⁽⁷⁾⁽⁸⁾⁽¹¹⁾
Class A Common Stock	10/08/2025		S		23,963	D	$139.42⁽⁵⁾	1,921,255	I	Footnotes⁽⁶⁾⁽⁷⁾⁽⁸⁾⁽¹²⁾
Class A Common Stock	10/08/2025		S		905	D	$140.6	1,920,350	I	Footnotes⁽⁶⁾⁽⁷⁾⁽⁸⁾⁽¹²⁾
Class A Common Stock	10/08/2025		S		2,476	D	$139.42⁽⁵⁾	336,756	I	Footnotes⁽⁶⁾⁽⁷⁾⁽⁸⁾⁽¹³⁾
Class A Common Stock	10/08/2025		S		93	D	$140.6	336,663	I	Footnotes⁽⁶⁾⁽⁷⁾⁽⁸⁾⁽¹³⁾
Class A Common Stock	10/08/2025		S		53,418	D	$139.42⁽⁵⁾	5,803,403	I	Footnotes⁽⁶⁾⁽⁷⁾⁽⁸⁾⁽¹⁴⁾
Class A Common Stock	10/08/2025		S		2,017	D	$140.6	5,801,386	I	Footnotes⁽⁶⁾⁽⁷⁾⁽⁸⁾⁽¹⁴⁾
Class A Common Stock	10/08/2025		S		73,335	D	$139.42⁽⁵⁾	7,298,212	I	Footnotes⁽⁶⁾⁽⁷⁾⁽⁸⁾⁽¹⁵⁾
Class A Common Stock	10/08/2025		S		2,768	D	$140.6	7,295,444	I	Footnotes⁽⁶⁾⁽⁷⁾⁽⁸⁾⁽¹⁵⁾
Class A Common Stock	10/08/2025		S		20,771	D	$139.42⁽⁵⁾	1,487,283	I	Footnotes⁽⁶⁾⁽⁷⁾⁽⁸⁾⁽¹⁶⁾
Class A Common Stock	10/08/2025		S		784	D	$140.6	1,486,499	I	Footnotes⁽⁶⁾⁽⁷⁾⁽⁸⁾⁽¹⁶⁾
Class A Common Stock	10/08/2025		S		78,196	D	$139.42⁽⁵⁾	9,720,910	I	Footnotes⁽⁶⁾⁽⁷⁾⁽⁸⁾⁽¹⁷⁾
Class A Common Stock	10/08/2025		S		2,952	D	$140.6	9,717,958	I	Footnotes⁽⁶⁾⁽⁷⁾⁽⁸⁾⁽¹⁷⁾
Class A Common Stock	10/08/2025		S		48,193	D	$139.42⁽⁵⁾	3,878,731	I	Footnotes⁽⁶⁾⁽⁷⁾⁽⁸⁾⁽¹⁸⁾
Class A Common Stock	10/08/2025		S		1,819	D	$140.6	3,876,912	I	Footnotes⁽⁶⁾⁽⁷⁾⁽⁸⁾⁽¹⁸⁾
Class A Common Stock	10/08/2025		S		38,822	D	$139.42⁽⁵⁾	3,525,262	I	Footnotes⁽⁶⁾⁽⁷⁾⁽⁸⁾⁽¹⁹⁾
Class A Common Stock	10/08/2025		S		1,466	D	$140.6	3,523,796	I	Footnotes⁽⁶⁾⁽⁷⁾⁽⁸⁾⁽¹⁹⁾
Class A Common Stock	10/08/2025		S		8,134	D	$139.42⁽⁵⁾	975,903	I	Footnotes⁽⁶⁾⁽⁷⁾⁽⁸⁾⁽²⁰⁾
Class A Common Stock	10/08/2025		S		307	D	$140.6	975,596	I	Footnotes⁽⁶⁾⁽⁷⁾⁽⁸⁾⁽²⁰⁾
Class A Common Stock								9,202,863	I	Footnotes⁽⁶⁾⁽⁷⁾⁽⁸⁾⁽²¹⁾

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 $137.19 to $138.15, 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, 4 and 5.

2. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $138.46 to $139.33, inclusive.

3. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $139.58 to $140.30, inclusive.

4. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $140.60 to $140.62, inclusive.

5. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $139.28 to $140.00, inclusive.

6. 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").

7. 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 administrative manager of Supernova Management is David J. Snyderman, a citizen of the United States of America.

8. 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.

9. These securities are held directly by CW Opportunity 2 LP.

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

11. These securities are held directly by Longhorn Special Opportunities Fund LP.

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

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

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

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

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

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

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

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

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

21. 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	10/10/2025
	/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	10/10/2025
	/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman, as Manager of Supernova Management LLC	10/10/2025
	/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman	10/10/2025
	** 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

Who filed the Form 4 reporting CoreWeave (CRWV) transactions?

Filings were made by Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC, and David J. Snyderman acting in related capacities.

When were the CoreWeave (CRWV) shares sold and at what price range?

Sales occurred on 10/08/2025 with weighted-average prices reported in ranges from $137.19 to $140.62 (various lots).

How many CoreWeave shares are reported as beneficially owned after the transactions?

The filings disclose an indirect beneficial ownership position of 9,202,863 shares following the reported transactions.

Which funds hold the sold shares directly?

The schedules attribute direct holdings to specific Magnetar-managed vehicles, including CW Opportunity LLC, CW Opportunity 2 LP, Longhorn Special Opportunities Fund LP, and others as listed in the filing.

Do the filings indicate any allegation of misconduct or legal action?

No allegations or legal actions are stated; the form reports only securities transactions and ownership information.

Magnetar Entities Reduce CoreWeave Stake; 9.20M Shares Remain

Rhea-AI Filing Summary

Positive

Negative

Insights

Corporate Governance Analyst positive

Insider Trade Summary

FAQ

Who filed the Form 4 reporting CoreWeave (CRWV) transactions?

When were the CoreWeave (CRWV) shares sold and at what price range?

How many CoreWeave shares are reported as beneficially owned after the transactions?

Which funds hold the sold shares directly?

Do the filings indicate any allegation of misconduct or legal action?