Multiple Magnetar-related insider sales reduce CoreWeave holdings; prices ~$133.50–$138

Q: When were the reported transactions executed?

All reported dispositions occurred on 09/25/2025 , with attestations signed on 09/26/2025 .

Q: What security and prices are disclosed?

The transactions involve Class A Common Stock sold at weighted-average prices with ranges between approximately $133.50 and $138.00 per share (see footnotes for specific ranges).

Filing Impact

(Very High)

Filing Sentiment

(Very Negative)

Form Type

Rhea-AI Filing Summary

Magnetar-related entities and David J. Snyderman reported multiple dispositions of CoreWeave, Inc. (CRWV) Class A common stock on 09/25/2025. The Form 4 shows numerous sales in separate blocks at weighted-average prices ranging roughly from $133.50 to $138.00 per share. The filings identify Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC and David J. Snyderman as reporting persons, each noted as a director and a 10% owner or connected to such funds. The report lists the number of shares beneficially owned following each reported sale for various underlying funds and accounts and includes footnotes describing the holding entities and price ranges.

Positive

None.

Negative

Significant coordinated dispositions: Multiple large sales of Class A common stock by Magnetar-related entities and an affiliated director on 09/25/2025 are reported.
Concentration in single day: Most transactions occurred on the same date, which may be materially visible to the market given the size and number of blocks.
Reduction in beneficial ownership for several funds: Post-transaction beneficial ownership counts are reported and show declines across multiple Magnetar-held entities.

Insights

TL;DR: Multiple large block sales by Magnetar-related holders on one day may signal portfolio rebalancing or liquidity needs; material to shareholders.

The reported activity consists entirely of dispositions executed on 09/25/2025 across many separate blocks with weighted-average prices disclosed and price ranges provided in footnotes. The disclosures show indirect holdings held through specific Magnetar funds with post-transaction beneficial ownership counts reported for each block. From an investor-information perspective, the filing is compliant and detailed, enabling market participants to see the magnitude and pricing of the sales. It does not provide reasons for the sales or any derivative activity.

TL;DR: Directors and 10% owners disclosed coordinated share disposals; governance disclosure requirements were followed but the sale concentration is notable.

The Form 4 identifies reporting persons as directors and connected to multiple Magnetar funds and provides explicit footnotes clarifying ownership chains and disclaimers. The signature blocks show transactions were executed and attested via attorney-in-fact on 09/26/2025. The filing is detailed regarding ownership structure and specific fund holders, which supports transparency for compliance and governance review. No additional corporate actions or insider transactions beyond sales are disclosed.

Insider Trade Summary

Net Seller: 1,113,847 shares ($151,907,029)

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 1,113,847 shs ($151.91M)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock	450	$133.79	$60K
Sale	Class A Common Stock	635	$135.00	$86K
Sale	Class A Common Stock	63,653	$136.05	$8.66M
Sale	Class A Common Stock	15,168	$137.22	$2.08M
Sale	Class A Common Stock	6,074	$138.00	$838K
Sale	Class A Common Stock	266,883	$136.03	$36.30M
Sale	Class A Common Stock	62,099	$137.17	$8.52M
Sale	Class A Common Stock	27,600	$138.00	$3.81M
Sale	Class A Common Stock	134,227	$136.03	$18.26M
Sale	Class A Common Stock	31,233	$137.17	$4.28M
Sale	Class A Common Stock	13,882	$138.00	$1.92M
Sale	Class A Common Stock	34,990	$136.03	$4.76M
Sale	Class A Common Stock	8,142	$137.17	$1.12M
Sale	Class A Common Stock	3,618	$138.00	$499K
Sale	Class A Common Stock	3,615	$136.03	$492K
Sale	Class A Common Stock	841	$137.17	$115K
Sale	Class A Common Stock	374	$138.00	$52K
Sale	Class A Common Stock	78,000	$136.03	$10.61M
Sale	Class A Common Stock	18,149	$137.17	$2.49M
Sale	Class A Common Stock	8,066	$138.00	$1.11M
Sale	Class A Common Stock	107,084	$136.03	$14.57M
Sale	Class A Common Stock	24,917	$137.17	$3.42M
Sale	Class A Common Stock	11,074	$138.00	$1.53M
Sale	Class A Common Stock	30,326	$136.03	$4.13M
Sale	Class A Common Stock	7,056	$137.17	$968K
Sale	Class A Common Stock	3,136	$138.00	$433K
Sale	Class A Common Stock	114,179	$136.03	$15.53M
Sale	Class A Common Stock	26,568	$137.17	$3.64M
Sale	Class A Common Stock	11,808	$138.00	$1.63M

Holdings After Transaction: Class A Common Stock — 6,605,195 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 $133.50 to $134.16, 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, 5 and 6. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $134.74 to $135.30, inclusive. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $135.87 to $136.85, inclusive. 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 $137.99, inclusive. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $135.94 to $136.50, inclusive. 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 $137.50, 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 SC Fund Ltd 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 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.

Form 4 Insider Transactions: What Each Field Means →

09/26/2025 - 08:06 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)
09/25/2025

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	09/25/2025		S		450	D	$133.79⁽¹⁾	6,605,195	I	Footnotes⁽⁷⁾⁽⁸⁾⁽⁹⁾⁽¹⁰⁾
Class A Common Stock	09/25/2025		S		635	D	$135⁽²⁾	6,604,560	I	Footnotes⁽⁷⁾⁽⁸⁾⁽⁹⁾⁽¹⁰⁾
Class A Common Stock	09/25/2025		S		63,653	D	$136.05⁽³⁾	6,540,907	I	Footnotes⁽⁷⁾⁽⁸⁾⁽⁹⁾⁽¹⁰⁾
Class A Common Stock	09/25/2025		S		15,168	D	$137.22⁽⁴⁾	6,525,739	I	Footnotes⁽⁷⁾⁽⁸⁾⁽⁹⁾⁽¹⁰⁾
Class A Common Stock	09/25/2025		S		6,074	D	$138	6,519,665	I	Footnotes⁽⁷⁾⁽⁸⁾⁽⁹⁾⁽¹⁰⁾
Class A Common Stock	09/25/2025		S		266,883	D	$136.03⁽⁵⁾	26,359,194	I	Footnotes⁽⁷⁾⁽⁸⁾⁽⁹⁾⁽¹¹⁾
Class A Common Stock	09/25/2025		S		62,099	D	$137.17⁽⁶⁾	26,297,095	I	Footnotes⁽⁷⁾⁽⁸⁾⁽⁹⁾⁽¹¹⁾
Class A Common Stock	09/25/2025		S		27,600	D	$138	26,269,495	I	Footnotes⁽⁷⁾⁽⁸⁾⁽⁹⁾⁽¹¹⁾
Class A Common Stock	09/25/2025		S		134,227	D	$136.03⁽⁵⁾	3,794,695	I	Footnotes⁽⁷⁾⁽⁸⁾⁽⁹⁾⁽¹²⁾
Class A Common Stock	09/25/2025		S		31,233	D	$137.17⁽⁶⁾	3,763,462	I	Footnotes⁽⁷⁾⁽⁸⁾⁽⁹⁾⁽¹²⁾
Class A Common Stock	09/25/2025		S		13,882	D	$138	3,749,580	I	Footnotes⁽⁷⁾⁽⁸⁾⁽⁹⁾⁽¹²⁾
Class A Common Stock	09/25/2025		S		34,990	D	$136.03⁽⁵⁾	2,119,877	I	Footnotes⁽⁷⁾⁽⁸⁾⁽⁹⁾⁽¹³⁾
Class A Common Stock	09/25/2025		S		8,142	D	$137.17⁽⁶⁾	2,111,735	I	Footnotes⁽⁷⁾⁽⁸⁾⁽⁹⁾⁽¹³⁾
Class A Common Stock	09/25/2025		S		3,618	D	$138	2,108,117	I	Footnotes⁽⁷⁾⁽⁸⁾⁽⁹⁾⁽¹³⁾
Class A Common Stock	09/25/2025		S		3,615	D	$136.03⁽⁵⁾	357,285	I	Footnotes⁽⁷⁾⁽⁸⁾⁽⁹⁾⁽¹⁴⁾
Class A Common Stock	09/25/2025		S		841	D	$137.17⁽⁶⁾	356,444	I	Footnotes⁽⁷⁾⁽⁸⁾⁽⁹⁾⁽¹⁴⁾
Class A Common Stock	09/25/2025		S		374	D	$138	356,070	I	Footnotes⁽⁷⁾⁽⁸⁾⁽⁹⁾⁽¹⁴⁾
Class A Common Stock	09/25/2025		S		78,000	D	$136.03⁽⁵⁾	6,246,154	I	Footnotes⁽⁷⁾⁽⁸⁾⁽⁹⁾⁽¹⁵⁾
Class A Common Stock	09/25/2025		S		18,149	D	$137.17⁽⁶⁾	6,228,005	I	Footnotes⁽⁷⁾⁽⁸⁾⁽⁹⁾⁽¹⁵⁾
Class A Common Stock	09/25/2025		S		8,066	D	$138	6,219,939	I	Footnotes⁽⁷⁾⁽⁸⁾⁽⁹⁾⁽¹⁵⁾
Class A Common Stock	09/25/2025		S		107,084	D	$136.03⁽⁵⁾	7,906,034	I	Footnotes⁽⁷⁾⁽⁸⁾⁽⁹⁾⁽¹⁶⁾
Class A Common Stock	09/25/2025		S		24,917	D	$137.17⁽⁶⁾	7,881,117	I	Footnotes⁽⁷⁾⁽⁸⁾⁽⁹⁾⁽¹⁶⁾
Class A Common Stock	09/25/2025		S		11,074	D	$138	7,870,043	I	Footnotes⁽⁷⁾⁽⁸⁾⁽⁹⁾⁽¹⁶⁾
Class A Common Stock	09/25/2025		S		30,326	D	$136.03⁽⁵⁾	1,659,424	I	Footnotes⁽⁷⁾⁽⁸⁾⁽⁹⁾⁽¹⁷⁾
Class A Common Stock	09/25/2025		S		7,056	D	$137.17⁽⁶⁾	1,652,368	I	Footnotes⁽⁷⁾⁽⁸⁾⁽⁹⁾⁽¹⁷⁾
Class A Common Stock	09/25/2025		S		3,136	D	$138	1,649,232	I	Footnotes⁽⁷⁾⁽⁸⁾⁽⁹⁾⁽¹⁷⁾
Class A Common Stock	09/25/2025		S		114,179	D	$136.03⁽⁵⁾	10,369,000	I	Footnotes⁽⁷⁾⁽⁸⁾⁽⁹⁾⁽¹⁸⁾
Class A Common Stock	09/25/2025		S		26,568	D	$137.17⁽⁶⁾	10,342,432	I	Footnotes⁽⁷⁾⁽⁸⁾⁽⁹⁾⁽¹⁸⁾
Class A Common Stock	09/25/2025		S		11,808	D	$138	10,330,624	I	Footnotes⁽⁷⁾⁽⁸⁾⁽⁹⁾⁽¹⁸⁾

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 $133.50 to $134.16, 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, 5 and 6.

2. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $134.74 to $135.30, inclusive.

3. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $135.87 to $136.85, inclusive.

4. 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 $137.99, inclusive.

5. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $135.94 to $136.50, inclusive.

6. 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 $137.50, inclusive.

7. 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 SC Fund Ltd 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").

8. 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.

9. 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.

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

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

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

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

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

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

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

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

18. These securities are held directly by Magnetar Structured Credit 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	09/26/2025
	/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	09/26/2025
	/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman, as Manager of Supernova Management LLC	09/26/2025
	/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman	09/26/2025
	** 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 for CoreWeave (CRWV)?

The filings were made by Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC and David J. Snyderman, each identified as a director or connected 10% owner.

When were the reported transactions executed?

All reported dispositions occurred on 09/25/2025, with attestations signed on 09/26/2025.

What security and prices are disclosed?

The transactions involve Class A Common Stock sold at weighted-average prices with ranges between approximately $133.50 and $138.00 per share (see footnotes for specific ranges).

Were derivative securities reported?

No derivative securities (options, warrants, convertible securities) are reported in Table II; the filing lists only non-derivative dispositions in Table I.

Do the filings explain why the shares were sold?

No. The Form 4 discloses the transactions, prices and post-transaction ownership counts but does not state the reasons for the sales.

Which entities directly hold the sold shares?

Footnotes identify the direct holders for each block, including CW Opportunity 2 LP, CW Opportunity LLC, Longhorn Special Opportunities Fund LP, Magnetar Alpha Star Fund LLC, Magnetar Capital Master Fund, Ltd., Magnetar Constellation Master Fund, Ltd., Magnetar Lake Credit Fund LLC, Magnetar SC Fund Ltd., and Magnetar Structured Credit Fund, LP.

Multiple Magnetar-related insider sales reduce CoreWeave holdings; prices ~$133.50–$138

Rhea-AI Filing Summary

Positive

Negative

Insights

Securities Analyst neutral

Corporate Governance Expert negative

Insider Trade Summary

FAQ

Who filed the Form 4 for CoreWeave (CRWV)?

When were the reported transactions executed?

What security and prices are disclosed?

Were derivative securities reported?

Do the filings explain why the shares were sold?

Which entities directly hold the sold shares?