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CRWV Form 4: Magnetar funds report open-market stock sales

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

Rhea-AI Filing Summary

CoreWeave, Inc. (CRWV): Magnetar‑affiliated reporting persons disclosed multiple open‑market sales of Class A common stock on 10/30/2025. Reported transactions include 12,377 shares at a weighted‑average price of $134.61, 1,871 shares at $135.36, and several blocks at a weighted‑average $134.69. Footnotes state these were executed in multiple trades within price ranges of $134.00–$134.90, $135.01–$135.86, and $134.62–$135.37.

Following the transactions, post‑transaction beneficial holdings reported for specific indirect holders include 5,539,249 shares, 22,245,775 shares, and 6,255,576 shares, among others, each tied to the relevant Magnetar funds. The filing notes the positions are held indirectly through various Magnetar vehicles and disclaims beneficial ownership except to the extent of pecuniary interest.

Positive

  • None.

Negative

  • None.

Insights

Routine Form 4 reporting multiple fund-level sales; neutral impact.

The filing lists several open‑market sales of CoreWeave Class A shares by entities advised or managed within the Magnetar complex on 10/30/2025. Prices were reported as weighted averages with underlying trade ranges: $134.00–$134.90, $135.01–$135.86, and $134.62–$135.37. Individual line items include 12,377 at $134.61 and 1,871 at $135.36, plus additional blocks at a weighted‑average of $134.69.

Post‑transaction beneficial holdings are reported at the fund level, for example 5,539,249 and 22,245,775 shares for specific entities. The disclosure states indirect holdings through Magnetar funds and includes a standard disclaimer of beneficial ownership except for pecuniary interest. As a Form 4, this is administrative disclosure; actual market impact depends on holder activity beyond the reported date.

Insider Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC, Snyderman David J.
Role 10% Owner | 10% Owner | 10% Owner | 10% Owner
Sold 216,010 shs ($29.09M)
Type Security Shares Price Value
Sale Class A Common Stock 12,377 $134.61 $1.67M
Sale Class A Common Stock 1,871 $135.36 $253K
Sale Class A Common Stock 59,288 $134.69 $7.99M
Sale Class A Common Stock 13,724 $134.69 $1.85M
Sale Class A Common Stock 7,772 $134.69 $1.05M
Sale Class A Common Stock 804 $134.69 $108K
Sale Class A Common Stock 17,325 $134.69 $2.33M
Sale Class A Common Stock 23,787 $134.69 $3.20M
Sale Class A Common Stock 16,095 $134.69 $2.17M
Sale Class A Common Stock 6,738 $134.69 $908K
Sale Class A Common Stock 25,364 $134.69 $3.42M
Sale Class A Common Stock 15,633 $134.69 $2.11M
Sale Class A Common Stock 12,594 $134.69 $1.70M
Sale Class A Common Stock 2,638 $134.69 $355K
Holdings After Transaction: Class A Common Stock — 5,539,249 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 $134.00 to $134.90 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 $135.01 to $135.86, inclusive. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $134.62 to $135.37, inclusive. Magnetar Financial LLC ("Magnetar Financial") serves as the investment adviser to each of CW Opportunity 2 LP, CW Opportunity LLC, Longhorn Special Opportunities Fund 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, and Purpose Alternative Credit Fund - T LLC, 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 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.
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)
10/30/2025
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 10/30/2025 S 12,377 D $134.61(1) 5,539,249 I Footnotes(4)(5)(6)(7)
Class A Common Stock 10/30/2025 S 1,871 D $135.36(2) 5,537,378 I Footnotes(4)(5)(6)(7)
Class A Common Stock 10/30/2025 S 59,288 D $134.69(3) 22,245,775 I Footnotes(4)(5)(6)(8)
Class A Common Stock 10/30/2025 S 13,724 D $134.69(3) 2,007,486 I Footnotes(4)(5)(6)(9)
Class A Common Stock 10/30/2025 S 7,772 D $134.69(3) 1,580,569 I Footnotes(4)(5)(6)(10)
Class A Common Stock 10/30/2025 S 804 D $134.69(3) 301,490 I Footnotes(4)(5)(6)(11)
Class A Common Stock 10/30/2025 S 17,325 D $134.69(3) 5,043,919 I Footnotes(4)(5)(6)(12)
Class A Common Stock 10/30/2025 S 23,787 D $134.69(3) 6,255,576 I Footnotes(4)(5)(6)(13)
Class A Common Stock 10/30/2025 S 16,095 D $134.69(3) 8,921,266 I Footnotes(4)(5)(6)(14)
Class A Common Stock 10/30/2025 S 6,738 D $134.69(3) 1,191,983 I Footnotes(4)(5)(6)(15)
Class A Common Stock 10/30/2025 S 25,364 D $134.69(3) 8,609,147 I Footnotes(4)(5)(6)(16)
Class A Common Stock 10/30/2025 S 15,633 D $134.69(3) 3,193,574 I Footnotes(4)(5)(6)(17)
Class A Common Stock 10/30/2025 S 12,594 D $134.69(3) 2,973,323 I Footnotes(4)(5)(6)(18)
Class A Common Stock 10/30/2025 S 2,638 D $134.69(3) 860,251 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)
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 $134.00 to $134.90 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 $135.01 to $135.86, inclusive.
3. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $134.62 to $135.37, inclusive.
4. Magnetar Financial LLC ("Magnetar Financial") serves as the investment adviser to each of CW Opportunity 2 LP, CW Opportunity LLC, Longhorn Special Opportunities Fund 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, and Purpose Alternative Credit Fund - T LLC, 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 administrative 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 Longhorn Special Opportunities Fund LP.
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.
15. These securities are held directly by Magnetar SC Fund Ltd.
16. These securities are held directly by Magnetar Structured Credit Fund, LP.
17. These securities are held directly by Magnetar Xing He Master Fund Ltd.
18. These securities are held directly by Purpose Alternative Credit Fund - F LLC.
19. These securities are held directly by Purpose Alternative Credit Fund - T LLC.
/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 10/31/2025
/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 10/31/2025
/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman, as Manager of Supernova Management LLC 10/31/2025
/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman 10/31/2025
** 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 CoreWeave (CRWV) insiders report on the Form 4?

Magnetar‑affiliated reporting persons disclosed multiple open‑market sales of Class A common stock on 10/30/2025, reported at weighted‑average prices with stated trade ranges.

What prices were the CRWV shares sold at in the reported transactions?

Weighted‑average prices include $134.61, $135.36, and $134.69, with underlying trade ranges of $134.00–$134.90, $135.01–$135.86, and $134.62–$135.37.

How many CRWV shares were in specific reported sales?

Examples include 12,377 shares at $134.61 and 1,871 shares at $135.36, plus several additional blocks at a weighted‑average price of $134.69.

What are the reported post‑transaction holdings for certain Magnetar funds?

Examples include 5,539,249 shares and 22,245,775 shares beneficially owned following the transactions, each tied to specific Magnetar entities.

How are the CRWV shares held according to the filing?

The positions are held indirectly through various Magnetar funds and related entities, with a disclaimer of beneficial ownership except to the extent of pecuniary interest.

Were the CRWV sales executed in multiple trades?

Yes. Footnotes state each weighted‑average price reflects multiple trades within the specified price ranges for that line item.