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CoreWeave Form 4: Magnetar entities dispose of 80,820 Class A shares

Filing Impact
(Very High)
Filing Sentiment
(Very Negative)
Form Type
4

Rhea-AI Filing Summary

CoreWeave insider Form 4: Multiple Magnetar-related entities reported sales of Class A common stock on 08/29/2025. The filing shows a series of dispositions totaling 80,820 shares across multiple Magnetar funds and vehicles at prices reported between $102.09 and $102.39, with a stated weighted average price footnote. The report lists remaining indirect beneficial holdings by the reporting group across several funds, with individual post-transaction balances shown for each entity. The filing includes detailed disclosure of the reporting chain: Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC and David J. Snyderman, and contains footnotes explaining direct holders and disclaimers of beneficial ownership.

Positive

  • Detailed disclosure of each disposition, post-transaction holdings, and the reporting chain from funds to manager
  • Weighted average price and price range are disclosed in footnotes, improving transparency
  • Signed attestations and attorney-in-fact signatures document proper authorization

Negative

  • Substantial dispositions: reporting group sold a total of 80,820 Class A shares on 08/29/2025 at prices in the $102.09–$102.39 range
  • No explanation provided for the sales in the filing itself, leaving investors without context for the dispositions

Insights

TL;DR: Magnetar-affiliated entities sold 80,820 CRWV shares on 08/29/2025 at ~ $102 each; filing discloses detailed holdings and ownership chain.

The Form 4 transparently reports multiple coordinated dispositions by Magnetar-related funds and vehicles, itemizing shares sold and post-transaction indirect holdings per entity. The filing includes a weighted average price footnote and a clear ownership/managerial chain from the funds to the ultimate manager. From a reporting and market-disclosure perspective, the form meets Section 16 requirements and gives investors granular visibility into the size and pricing range of the sales. There is no forward-looking or contextual commentary included in the filing.

TL;DR: The disclosure clearly links reporting persons and clarifies disclaimers of beneficial ownership while documenting significant share dispositions.

The submission identifies the reporting entities and the manager, includes signed authorizations, and provides explanatory footnotes about which entity directly holds each block of shares. The form also contains the standard disclaimers of beneficial ownership except for pecuniary interest. Procedurally, signatures and attorney-in-fact filings are present. The filing is thorough on legal form and ownership attribution but contains no explanation of the rationale for the sales.

Insider Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC, Snyderman David J.
Role 10% Owner | 10% Owner | 10% Owner | 10% Owner
Sold 80,820 shs ($8.27M)
Type Security Shares Price Value
Sale Class A Common Stock 21,382 $102.36 $2.19M
Sale Class A Common Stock 17,465 $102.39 $1.79M
Sale Class A Common Stock 2,290 $102.39 $234K
Sale Class A Common Stock 237 $102.39 $24K
Sale Class A Common Stock 5,105 $102.39 $523K
Sale Class A Common Stock 7,008 $102.39 $718K
Sale Class A Common Stock 8,784 $102.39 $899K
Sale Class A Common Stock 1,985 $102.39 $203K
Sale Class A Common Stock 7,472 $102.39 $765K
Sale Class A Common Stock 4,605 $102.39 $472K
Sale Class A Common Stock 3,709 $102.39 $380K
Sale Class A Common Stock 778 $102.39 $80K
holding Class A Common Stock -- -- --
Holdings After Transaction: Class A Common Stock — 7,178,233 shares (Indirect, Footnotes)
Footnotes (1)
  1. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $102.09 to $102.39, 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. 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 →
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 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)
08/29/2025
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 08/29/2025 S 21,382 D $102.36(1) 7,178,233 I Footnotes(2)(3)(4)(5)
Class A Common Stock 08/29/2025 S 17,465 D $102.39 28,996,500 I Footnotes(2)(3)(4)(6)
Class A Common Stock 08/29/2025 S 2,290 D $102.39 2,465,650 I Footnotes(2)(3)(4)(7)
Class A Common Stock 08/29/2025 S 237 D $102.39 393,046 I Footnotes(2)(3)(4)(8)
Class A Common Stock 08/29/2025 S 5,105 D $102.39 7,016,901 I Footnotes(2)(3)(4)(9)
Class A Common Stock 08/29/2025 S 7,008 D $102.39 8,964,186 I Footnotes(2)(3)(4)(10)
Class A Common Stock 08/29/2025 S 8,784 D $102.39 9,906,349 I Footnotes(2)(3)(4)(11)
Class A Common Stock 08/29/2025 S 1,985 D $102.39 1,959,115 I Footnotes(2)(3)(4)(12)
Class A Common Stock 08/29/2025 S 7,472 D $102.39 11,497,293 I Footnotes(2)(3)(4)(13)
Class A Common Stock 08/29/2025 S 4,605 D $102.39 4,973,520 I Footnotes(2)(3)(4)(14)
Class A Common Stock 08/29/2025 S 3,709 D $102.39 4,407,215 I Footnotes(2)(3)(4)(15)
Class A Common Stock 08/29/2025 S 778 D $102.39 1,160,677 I Footnotes(2)(3)(4)(16)
Class A Common Stock 4,417,607 I Footnotes(2)(3)(4)(17)
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 $102.09 to $102.39, 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.
2. 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").
3. 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.
4. 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.
5. These securities are held directly by CW Opportunity 2 LP.
6. These securities are held directly by CW Opportunity LLC.
7. These securities are held directly by Magnetar Alpha Star Fund LLC.
8. These securities are held directly by Magnetar Capital Master Fund, Ltd.
9. These securities are held directly by Magnetar Constellation Master Fund, Ltd.
10. These securities are held directly by Magnetar Lake Credit Fund LLC.
11. These securities are held directly by Magnetar Longhorn Fund LP.
12. These securities are held directly by Magnetar SC Fund Ltd.
13. These securities are held directly by Magnetar Structured Credit Fund, LP.
14. These securities are held directly by Magnetar Xing He Master Fund Ltd.
15. These securities are held directly by Purpose Alternative Credit Fund - F LLC.
16. These securities are held directly by Purpose Alternative Credit Fund - T LLC.
17. 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 09/02/2025
/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 09/02/2025
/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman, as Manager of Supernova Management LLC 09/02/2025
/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman 09/02/2025
** 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 filed for CRWV report on 08/29/2025?

The Form 4 reports multiple sales by Magnetar-related entities of 80,820 Class A shares on 08/29/2025 at prices ranging from $102.09 to $102.39.

Which entities reported the transactions on the CRWV Form 4?

Reporting persons include Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC and David J. Snyderman as manager, with various Magnetar funds holding the sold shares.

How much ownership remained after the reported transactions?

The filing lists post-transaction indirect holdings for each entity; individual balances are shown in the table (for example, one line shows 7,178,233 shares indirect ownership following a disposition).

Does the Form 4 explain why the Magnetar entities sold shares?

No. The Form 4 discloses the transactions, prices and holdings but does not provide any explanation or rationale for the sales.

Is the price information precise or averaged on the CRWV Form 4?

The filing includes a footnote stating a weighted average price and discloses that sales occurred at prices ranging from $102.09 to $102.39.