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Magnetar funds trim CoreWeave (CRWV) stake with 420,227-share sale

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

Rhea-AI Filing Summary

CoreWeave, Inc. received a Form 4 showing that investment entities associated with Magnetar Financial LLC and related Magnetar-managed funds indirectly sold 420,227 shares of Class A Common Stock on May 4, 2026.

The sales were open-market transactions at weighted average prices, with underlying trade ranges between $125.79 and $129.50 per share as described in the footnotes. All positions are reported as indirect holdings through various Magnetar funds, and Magnetar entities and David J. Snyderman disclaim beneficial ownership beyond their pecuniary interest. The filing also notes that significant indirect holdings remain across multiple Magnetar-managed funds as of the same date.

Positive

  • None.

Negative

  • None.
Insider Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC, Snyderman David J.
Role 10% Owner | 10% Owner | 10% Owner | 10% Owner
Sold 420,227 shs ($53.49M)
Type Security Shares Price Value
Sale Class A Common Stock 3,302 $126.52 $418K
Sale Class A Common Stock 3,439 $127.46 $438K
Sale Class A Common Stock 574 $128.87 $74K
Sale Class A Common Stock 496 $129.38 $64K
Sale Class A Common Stock 78,685 $126.52 $9.96M
Sale Class A Common Stock 81,879 $127.46 $10.44M
Sale Class A Common Stock 13,664 $128.86 $1.76M
Sale Class A Common Stock 11,810 $129.38 $1.53M
Sale Class A Common Stock 48,495 $126.52 $6.14M
Sale Class A Common Stock 50,466 $127.46 $6.43M
Sale Class A Common Stock 8,421 $128.86 $1.09M
Sale Class A Common Stock 7,278 $129.38 $942K
Sale Class A Common Stock 39,068 $126.52 $4.94M
Sale Class A Common Stock 40,651 $127.46 $5.18M
Sale Class A Common Stock 6,782 $128.86 $874K
Sale Class A Common Stock 5,862 $129.38 $758K
Sale Class A Common Stock 8,180 $126.52 $1.03M
Sale Class A Common Stock 8,521 $127.46 $1.09M
Sale Class A Common Stock 1,424 $128.86 $183K
Sale Class A Common Stock 1,230 $129.38 $159K
holding Class A Common Stock -- -- --
Holdings After Transaction: Class A Common Stock — 874,918 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 $125.79 to $126.67, 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, and 4. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $127.04 to $128.00, inclusive. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $128.07 to $129.00, inclusive. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $129.27 to $129.50, inclusive. Magnetar Financial LLC ("Magnetar Financial") serves as the investment adviser to each Longhorn Special Opportunities 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 and the general partner of Magnetar Structured Credit Fund, LP DBA Magnetar Constellation Onshore Fund (They are not separate legal entities), (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 Magnetar SC Fund Ltd. These securities are held directly by Magnetar Structured Credit Fund, LP DBA Magnetar Constellation Onshore Fund. They are not separate legal entities. 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.
Shares sold 420,227 shares Net open-market sales of Class A Common Stock on May 4, 2026
Low trade range $125.79/share Lowest price in reported weighted-average sale ranges
High trade range $129.50/share Highest price in reported weighted-average sale ranges
Sale transactions 20 entries Number of sale transactions reported in transaction summary
Net buy/sell direction Net sale of 420,227 shares Transaction summary netBuySellShares and netBuySellDirection fields
weighted average price financial
"The price reported in Column 4 is a weighted average price."
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
open-market sale financial
"transaction_action": "open-market sale""
An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.
ten percent owner regulatory
"is_ten_percent_owner": 1"
pecuniary interest financial
"disclaims beneficial ownership ... except to the extent of its or his pecuniary interest"
beneficial ownership regulatory
"disclaims beneficial ownership of these shares of Common Stock"
Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.
indirect ownership regulatory
""ownership_type": "indirect", "ownership_code": "I""

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FAQ

At what prices were the CoreWeave (CRWV) shares sold by Magnetar funds?
The Form 4 reports weighted average prices, with underlying trade ranges between $125.79 and $129.50 per share. Several footnotes explain that individual sales occurred in multiple transactions within narrower ranges inside this overall band.

Who is officially listed as the reporting person in the CoreWeave (CRWV) Form 4?
The reporting persons are Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC, and David J. Snyderman, each identified as a ten percent owner. However, they report holdings indirectly through various Magnetar-managed funds rather than in personal accounts.

Do Magnetar entities claim full beneficial ownership of the CoreWeave (CRWV) shares?
No. The Form 4 states that each Magnetar fund and related entity, including David J. Snyderman, disclaims beneficial ownership of the CoreWeave shares except to the extent of its or his pecuniary interest, limiting the scope of their reported economic stake.

Which investment funds are involved in the CoreWeave (CRWV) transactions?
Footnotes identify several Magnetar-managed funds, including Magnetar SC Fund Ltd, Magnetar Xing He Master Fund Ltd, Magnetar Structured Credit Fund LP, Purpose Alternative Credit Fund vehicles, and Longhorn Special Opportunities Fund LP, as the direct holders of the CoreWeave Class A Common Stock.

Were the CoreWeave (CRWV) sales direct insider trades or through entities?
All reported CoreWeave sales are indirect, made through Magnetar-managed funds that directly hold the shares. The reporting persons attribute the transactions to these funds and indicate indirect ownership, with beneficial interest limited to their economic stakes.
SEC Form 4
FORM 4UNITED 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 ILLINOIS 60201
(City)(State)(Zip)
UNITED STATES
(Country)		2. Issuer Name and Ticker or Trading Symbol
CoreWeave, Inc. [ CRWV ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
DirectorX10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
05/04/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
Form filed by One Reporting Person
XForm filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

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)
CodeVAmount(A) or (D)Price
Class A Common Stock05/04/2026S3,302D$126.52(1)874,918IFootnotes(5)(6)(7)(8)
Class A Common Stock05/04/2026S3,439D$127.46(2)871,479IFootnotes(5)(6)(7)(8)
Class A Common Stock05/04/2026S574D$128.87(3)870,905IFootnotes(5)(6)(7)(8)
Class A Common Stock05/04/2026S496D$129.38(4)870,409IFootnotes(5)(6)(7)(8)
Class A Common Stock05/04/2026S78,685D$126.52(1)7,528,438IFootnotes(5)(6)(7)(9)
Class A Common Stock05/04/2026S81,879D$127.46(2)7,446,559IFootnotes(5)(6)(7)(9)
Class A Common Stock05/04/2026S13,664D$128.86(3)7,432,895IFootnotes(5)(6)(7)(9)
Class A Common Stock05/04/2026S11,810D$129.38(4)7,421,085IFootnotes(5)(6)(7)(9)
Class A Common Stock05/04/2026S48,495D$126.52(1)2,417,045IFootnotes(5)(6)(7)(10)
Class A Common Stock05/04/2026S50,466D$127.46(2)2,366,579IFootnotes(5)(6)(7)(10)
Class A Common Stock05/04/2026S8,421D$128.86(3)2,358,158IFootnotes(5)(6)(7)(10)
Class A Common Stock05/04/2026S7,278D$129.38(4)2,350,880IFootnotes(5)(6)(7)(10)
Class A Common Stock05/04/2026S39,068D$126.52(1)2,399,154IFootnotes(5)(6)(7)(11)
Class A Common Stock05/04/2026S40,651D$127.46(2)2,358,503IFootnotes(5)(6)(7)(11)
Class A Common Stock05/04/2026S6,782D$128.86(3)2,351,721IFootnotes(5)(6)(7)(11)
Class A Common Stock05/04/2026S5,862D$129.38(4)2,345,859IFootnotes(5)(6)(7)(11)
Class A Common Stock05/04/2026S8,180D$126.52(1)737,458IFootnotes(5)(6)(7)(12)
Class A Common Stock05/04/2026S8,521D$127.46(2)728,937IFootnotes(5)(6)(7)(12)
Class A Common Stock05/04/2026S1,424D$128.86(3)727,513IFootnotes(5)(6)(7)(12)
Class A Common Stock05/04/2026S1,230D$129.38(4)726,283IFootnotes(5)(6)(7)(12)
Class A Common Stock1,973,782IFootnotes(5)(6)(7)(13)
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
1. Name and Address of Reporting Person*
Magnetar Financial LLC
(Last)(First)(Middle)
1603 ORRINGTON AVENUE
13TH FLOOR
(Street)
EVANSTON ILLINOIS 60201
(City)(State)(Zip)
UNITED STATES
(Country)
Relationship of Reporting Person(s) to Issuer
DirectorX10% 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 ILLINOIS 60201
(City)(State)(Zip)
UNITED STATES
(Country)
Relationship of Reporting Person(s) to Issuer
DirectorX10% 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 ILLINOIS 60201
(City)(State)(Zip)
UNITED STATES
(Country)
Relationship of Reporting Person(s) to Issuer
DirectorX10% 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 ILLINOIS 60201
(City)(State)(Zip)
UNITED STATES
(Country)
Relationship of Reporting Person(s) to Issuer
DirectorX10% 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 $125.79 to $126.67, 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, and 4.
2. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $127.04 to $128.00, inclusive.
3. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $128.07 to $129.00, inclusive.
4. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $129.27 to $129.50, inclusive.
5. Magnetar Financial LLC ("Magnetar Financial") serves as the investment adviser to each Longhorn Special Opportunities 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 and the general partner of Magnetar Structured Credit Fund, LP DBA Magnetar Constellation Onshore Fund (They are not separate legal entities), (collectively, the "Magnetar Funds").
6. 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.
7. 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.
8. These securities are held directly by Magnetar SC Fund Ltd.
9. These securities are held directly by Magnetar Structured Credit Fund, LP DBA Magnetar Constellation Onshore Fund. They are not separate legal entities.
10. These securities are held directly by Magnetar Xing He Master Fund Ltd.
11. These securities are held directly by Purpose Alternative Credit Fund - F LLC.
12. These securities are held directly by Purpose Alternative Credit Fund - T LLC.
13. These securities are held directly by Longhorn Special Opportunities Fund LP.
/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman, as Administrative 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 LLC05/06/2026
/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman, as Administrative Manager of Supernova Management LLC, which is the General Partner of Magnetar Capital Partners LP05/06/2026
/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman, as Administrative Manager of Supernova Management LLC05/06/2026
/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman05/06/2026
** Signature of Reporting PersonDate
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.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR