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  4. [Form 4] CoreWeave, Inc. Insider Trading Activity

Magnetar funds sell 2,770 CoreWeave (CRWV) shares in open market

Filing Impact
(Moderate)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

Magnetar-affiliated funds reported small open-market sales of CoreWeave, Inc. Class A Common Stock while retaining large indirect positions. On April 24, 2026, entities advised or managed by Magnetar reported selling a total of 2,770 shares at $119.56 per share across multiple accounts.

After these transactions, individual Magnetar-related vehicles still held sizeable stakes, including post-transaction positions such as 19,888,169 shares, 7,789,771 shares and other multi-hundred-thousand-share holdings. Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC and David J. Snyderman each disclaim beneficial ownership except to the extent of their pecuniary interest.

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 2,770 shs ($331K)
Type Security Shares Price Value
Sale Class A Common Stock 242 $119.56 $29K
Sale Class A Common Stock 742 $119.56 $89K
Sale Class A Common Stock 98 $119.56 $12K
Sale Class A Common Stock 11 $119.56 $1K
Sale Class A Common Stock 217 $119.56 $26K
Sale Class A Common Stock 298 $119.56 $36K
Sale Class A Common Stock 373 $119.56 $45K
Sale Class A Common Stock 85 $119.56 $10K
Sale Class A Common Stock 317 $119.56 $38K
Sale Class A Common Stock 196 $119.56 $23K
Sale Class A Common Stock 158 $119.56 $19K
Sale Class A Common Stock 33 $119.56 $4K
holding Class A Common Stock -- -- --
Holdings After Transaction: Class A Common Stock — 2,737,379 shares (Indirect, Footnotes)
Footnotes (16)
  1. F1. 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 DBA Magnetar Constellation Onshore Fund (They are not separate legal entities), and the manager of Magnetar Alpha Star Fund LLC and Magnetar Lake Credit Fund LLC (collectively, the "Magnetar Funds").
  2. F2. 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.
  3. F3. 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.
  4. F4. These securities are held directly by CW Opportunity 2 LP.
  5. F5. These securities are held directly by CW Opportunity LLC.
  6. F6. These securities are held directly by Magnetar Alpha Star Fund LLC.
  7. F7. These securities are held directly by Magnetar Capital Master Fund, Ltd.
  8. F8. These securities are held directly by Magnetar Constellation Master Fund, Ltd.
  9. F9. These securities are held directly by Magnetar Lake Credit Fund LLC.
  10. F10. These securities are held directly by Magnetar Longhorn Fund LP.
  11. F11. These securities are held directly by Magnetar SC Fund Ltd.
  12. F12. These securities are held directly by Magnetar Structured Credit Fund, LP DBA Magnetar Constellation Onshore Fund. They are not separate legal entities.
  13. F13. These securities are held directly by Magnetar Xing He Master Fund Ltd.
  14. F14. These securities are held directly by Purpose Alternative Credit Fund - F LLC.
  15. F15. These securities are held directly by Purpose Alternative Credit Fund - T LLC.
  16. F16. These securities are held directly by Longhorn Special Opportunities Fund LP.
Total shares sold 2,770 shares Aggregate open-market sales on April 24, 2026
Sale price $119.56 per share Price for each reported sale transaction
Largest post-transaction holding 19,888,169 shares Indirect Class A Common Stock position after sales
Other large holding 7,789,771 shares Indirect Class A Common Stock position after sales
Indirect holding example 1,973,782 shares Class A Common Stock holding following a reported entry
Sell transactions count 12 transactions Number of sale entries reported for April 24, 2026
open-market sale financial
"transaction_action: "open-market sale" for non-derivative entries"
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.
Class A Common Stock financial
"security_title: "Class A Common Stock" for each transaction"
Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.
indirect ownership financial
"direct_or_indirect: "I" and ownership_type: "indirect""
beneficial ownership financial
"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.
pecuniary interest financial
"except to the extent of its or his pecuniary interest therein"
investment adviser financial
"Magnetar Financial LLC serves as the investment adviser"
An investment adviser is a person or firm that professionally manages money and gives recommendations about buying, selling, or holding investments. Like a financial coach or guide, they have a legal duty to act in a client's best financial interest, so their advice, fees and potential conflicts can directly affect returns and risk — making their role important for investors who want informed, accountable help with portfolios.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Form 4 Insider Transactions: What Each Field Means →

FAQ

How many CoreWeave (CRWV) shares did Magnetar funds sell and at what price?
Magnetar-associated funds sold 2,770 shares of CoreWeave Class A Common Stock. The reported transactions occurred at a price of $119.56 per share on April 24, 2026, and were classified as open-market or private sales of non-derivative equity securities.

How is ownership of CoreWeave (CRWV) shares structured for Magnetar entities?
CoreWeave shares are held directly by various Magnetar funds and special-purpose vehicles, such as CW Opportunity 2 LP and Magnetar Capital Master Fund, Ltd. Magnetar Financial, Magnetar Capital Partners, Supernova Management and David J. Snyderman act as adviser or manager and disclaim beneficial ownership except for pecuniary interest.

Do Magnetar entities claim full beneficial ownership of their CoreWeave (CRWV) shares?
No. Each of the Magnetar Funds, Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC and David J. Snyderman expressly disclaims beneficial ownership of CoreWeave common stock, except to the extent of its or his pecuniary interest in the relevant fund or account.

Were the reported CoreWeave (CRWV) insider trades direct or indirect holdings?
All reported CoreWeave transactions involve indirect holdings. The Form 4 classifies each position as indirect, with nature of ownership referenced to footnotes that attribute direct holdings to specific Magnetar-managed funds and vehicles, rather than to the reporting persons individually.
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)
04/24/2026		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 Stock04/24/2026S242D$119.564,785,835IFootnotes(1)(2)(3)(4)
Class A Common Stock04/24/2026S742D$119.5619,888,169IFootnotes(1)(2)(3)(5)
Class A Common Stock04/24/2026S98D$119.561,271,483IFootnotes(1)(2)(3)(6)
Class A Common Stock04/24/2026S11D$119.56269,530IFootnotes(1)(2)(3)(7)
Class A Common Stock04/24/2026S217D$119.564,354,916IFootnotes(1)(2)(3)(8)
Class A Common Stock04/24/2026S298D$119.565,429,261IFootnotes(1)(2)(3)(9)
Class A Common Stock04/24/2026S373D$119.567,785,743IFootnotes(1)(2)(3)(10)
Class A Common Stock04/24/2026S85D$119.56924,078IFootnotes(1)(2)(3)(11)
Class A Common Stock04/24/2026S317D$119.567,779,771IFootnotes(1)(2)(3)(12)
Class A Common Stock04/24/2026S196D$119.562,571,944IFootnotes(1)(2)(3)(13)
Class A Common Stock04/24/2026S158D$119.562,523,936IFootnotes(1)(2)(3)(14)
Class A Common Stock04/24/2026S33D$119.56763,597IFootnotes(1)(2)(3)(15)
Class A Common Stock1,973,782IFootnotes(1)(2)(3)(16)
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. 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 DBA Magnetar Constellation Onshore Fund (They are not separate legal entities), and the manager of Magnetar Alpha Star Fund LLC and Magnetar Lake Credit Fund LLC (collectively, the "Magnetar Funds").
2. 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.
3. 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.
4. These securities are held directly by CW Opportunity 2 LP.
5. These securities are held directly by CW Opportunity LLC.
6. These securities are held directly by Magnetar Alpha Star Fund LLC.
7. These securities are held directly by Magnetar Capital Master Fund, Ltd.
8. These securities are held directly by Magnetar Constellation Master Fund, Ltd.
9. These securities are held directly by Magnetar Lake Credit Fund LLC.
10. These securities are held directly by Magnetar Longhorn Fund LP.
11. These securities are held directly by Magnetar SC Fund Ltd.
12. These securities are held directly by Magnetar Structured Credit Fund, LP DBA Magnetar Constellation Onshore Fund. They are not separate legal entities.
13. These securities are held directly by Magnetar Xing He Master Fund Ltd.
14. These securities are held directly by Purpose Alternative Credit Fund - F LLC.
15. These securities are held directly by Purpose Alternative Credit Fund - T LLC.
16. 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 LLC04/24/2026
/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 LP04/24/2026
/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman, as Administrative Manager of Supernova Management LLC04/24/2026
/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman04/24/2026
** 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