STOCK TITAN

Form 4: Magnetar entities report large CRWV dispositions totaling 185,627 shares

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

Rhea-AI Filing Summary

CoreWeave, Inc. (CRWV) Form 4 disclosure describes multiple insider sales by affiliated reporting persons tied to Magnetar entities and an individual manager. On 09/25/2025 the filing reports a series of dispositions totaling 185,627 shares of Class A common stock sold across multiple transactions at weighted-average prices in the range of roughly $135.94 to $138.00 per share. The reporting chain shows Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC and David J. Snyderman as related reporting persons, with the sold shares held by various Magnetar funds. After the transactions the filing shows an indicated indirect beneficial ownership position of 9,202,863 shares for certain affiliated accounts. The filing includes detailed footnotes explaining the fund relationships and weighted-average price ranges.

Positive

  • Transparent disclosure of multiple sales with weighted-average prices and price ranges included
  • Clear ownership mapping showing the relationship among Magnetar Financial, Magnetar Capital Partners, Supernova Management and David J. Snyderman
  • Signed attestations are provided by an attorney-in-fact, indicating procedural compliance

Negative

  • Large aggregated dispositions of 185,627 Class A shares on a single date, which materially reduce holdings in the sold tranches
  • Concentrated insider selling by affiliated funds could be viewed negatively by some investors monitoring insider activity

Insights

TL;DR: Multiple affiliated insiders sold 185,627 Class A shares on 09/25/2025 at weighted-average prices near $136–$138.

The filing reports concentrated dispositions executed across affiliated Magnetar funds with clear footnotes on ownership structure and disclaimers of beneficial ownership except for pecuniary interest. The sales are reported with weighted-average prices and ranges, improving transparency. The post-transaction indirect ownership lines reported (including an entry of 9,202,863 shares) provide investors with a snapshot of continued affiliated holdings despite the sales. This is a routine Section 16 disclosure documenting sales rather than an issuance or derivative activity.

TL;DR: Related-party disclosures are complete and include managerial signing authority; the transactions appear properly documented.

The Form 4 clearly maps the chain from funds to parent entities and the manager, and includes attestations signed by an attorney-in-fact, which supports procedural compliance. Footnotes explicitly identify which fund directly held each block of shares and contain price-range detail, aiding any follow-up requests. The filing shows significant sales by affiliated funds but retains substantial indirect holdings, consistent with reallocation or portfolio management by the reporting group rather than an outright exit.

Insider Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC, Snyderman David J.
Role 10% Owner | 10% Owner | 10% Owner | 10% Owner
Sold 185,627 shs ($25.32M)
Type Security Shares Price Value
Sale Class A Common Stock 70,370 $136.03 $9.57M
Sale Class A Common Stock 16,374 $137.17 $2.25M
Sale Class A Common Stock 7,278 $138.00 $1.00M
Sale Class A Common Stock 56,686 $136.03 $7.71M
Sale Class A Common Stock 13,190 $137.17 $1.81M
Sale Class A Common Stock 5,862 $138.00 $809K
Sale Class A Common Stock 11,876 $136.03 $1.62M
Sale Class A Common Stock 2,763 $137.17 $379K
Sale Class A Common Stock 1,228 $138.00 $169K
holding Class A Common Stock -- -- --
Holdings After Transaction: Class A Common Stock — 4,278,153 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 $135.94 to $136.50, 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 footnote 2. 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 Magnetar Longhorn Fund LP, Magnetar Xing He Master Fund Ltd, Purpose Alternative Credit Fund - F LLC and Purpose Alternative Credit Fund - T 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 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.
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 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)
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)
Code V Amount (A) or (D) Price
Class A Common Stock 09/25/2025 S 70,370 D $136.03(1) 4,278,153 I Footnotes(3)(4)(5)(6)
Class A Common Stock 09/25/2025 S 16,374 D $137.17(2) 4,261,779 I Footnotes(3)(4)(5)(6)
Class A Common Stock 09/25/2025 S 7,278 D $138 4,254,501 I Footnotes(3)(4)(5)(6)
Class A Common Stock 09/25/2025 S 56,686 D $136.03(1) 3,847,040 I Footnotes(3)(4)(5)(7)
Class A Common Stock 09/25/2025 S 13,190 D $137.17(2) 3,833,850 I Footnotes(3)(4)(5)(7)
Class A Common Stock 09/25/2025 S 5,862 D $138 3,827,988 I Footnotes(3)(4)(5)(7)
Class A Common Stock 09/25/2025 S 11,876 D $136.03(1) 1,043,318 I Footnotes(3)(4)(5)(8)
Class A Common Stock 09/25/2025 S 2,763 D $137.17(2) 1,040,555 I Footnotes(3)(4)(5)(8)
Class A Common Stock 09/25/2025 S 1,228 D $138 1,039,327 I Footnotes(3)(4)(5)(8)
Class A Common Stock 9,202,863 I Footnotes(3)(4)(5)(9)
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 $135.94 to $136.50, 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 footnote 2.
2. 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.
3. Magnetar Financial LLC ("Magnetar Financial") serves as the investment adviser to each of Magnetar Longhorn Fund LP, Magnetar Xing He Master Fund Ltd, Purpose Alternative Credit Fund - F LLC and Purpose Alternative Credit Fund - T LLC (collectively, the "Magnetar Funds").
4. 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.
5. 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.
6. These securities are held directly by Magnetar Xing He Master Fund Ltd.
7. These securities are held directly by Purpose Alternative Credit Fund - F LLC.
8. These securities are held directly by Purpose Alternative Credit Fund - T LLC.
9. 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 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.

FAQ

What insider transactions does the CRWV Form 4 report?

The Form 4 reports multiple sales on 09/25/2025 totaling 185,627 Class A shares at weighted-average prices in the approximate range of $135.94 to $138.00 per share.

Which entities filed the Form 4 for CoreWeave (CRWV)?

The filing lists Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC and David J. Snyderman as reporting persons, with sales attributable to various Magnetar funds.

How much indirect beneficial ownership remains after the reported transactions?

The Form 4 includes an indicated indirect beneficial ownership line showing 9,202,863 shares for certain affiliated accounts.

Are the price details of the sales provided?

Yes. The filing provides weighted-average prices and footnote ranges: one range $135.94–$136.50, another $137.00–$137.50, and specific entries at $138.00.

Who signed the Form 4 filing?

The filing is signed by Hayley A. Stein as attorney-in-fact for David J. Snyderman in his managerial roles, with signature dates of 09/26/2025.