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Magnetar entities (CRWV) report call options on 2M CoreWeave Class A shares

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

Rhea-AI Filing Summary

Magnetar-affiliated entities reported derivative sales tied to CoreWeave, Inc. (CRWV). On 2026-08-12, funds advised or managed by Magnetar Financial LLC entered into nine transactions involving call options described as an obligation to sell, referencing a total of 2,000,000 shares of Class A Common Stock with a $130.00 exercise price and an exercise and expiration date of March 19, 2027. The options are held indirectly through various Magnetar funds, and Magnetar Financial, Magnetar Capital Partners LP, Supernova Management LLC and David J. Snyderman each disclaim beneficial ownership except to the extent of their pecuniary interest.

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Insider Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC, Snyderman David J.
Role 10% Owner | 10% Owner | 10% Owner | 10% Owner
Sold 2,000,000 shs ($14241.30B)
Type Security Shares Price Value
Sale Call option (obligation to sell) F1, F2, F3, F4 183,640 $3,659,027.00 $671.94B
Sale Call option (obligation to sell) F1, F2, F3, F5 627,486 $12,502,658.55 $7845.24B
Sale Call option (obligation to sell) F1, F2, F3, F6 8,503 $169,422.28 $1.44B
Sale Call option (obligation to sell) F1, F2, F3, F7 183,381 $3,653,866.43 $670.05B
Sale Call option (obligation to sell) F1, F2, F3, F8 251,762 $5,016,357.85 $1262.93B
Sale Call option (obligation to sell) F1, F2, F3, F9 315,583 $6,287,991.28 $1984.38B
Sale Call option (obligation to sell) F1, F2, F3, F10 268,446 $5,348,786.55 $1435.86B
Sale Call option (obligation to sell) F1, F2, F3, F11 133,276 $2,655,524.30 $353.92B
Sale Call option (obligation to sell) F1, F2, F3, F12 27,923 $556,365.78 $15.54B
Holdings After Transaction: Call option (obligation to sell) — 2,000,000 shares (Indirect, Footnotes)
Footnotes (12)
  1. F1. Magnetar Financial LLC ("Magnetar Financial") serves as the investment adviser to each of CW Opportunity 2 LP, CW Opportunity LLC, Magnetar Capital Master Fund, Ltd, Magnetar Constellation Master Fund, Ltd, Magnetar Longhorn Fund LP, 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 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 Capital Master Fund, Ltd.
  7. F7. These securities are held directly by Magnetar Constellation Master Fund, Ltd.
  8. F8. These securities are held directly by Magnetar Lake Credit Fund LLC.
  9. F9. These securities are held directly by Magnetar Longhorn Fund LP.
  10. F10. These securities are held directly by Magnetar Structured Credit Fund, LP DBA Magnetar Constellation Onshore Fund. They are not separate legal entities.
  11. F11. These securities are held directly by Purpose Alternative Credit Fund - F LLC.
  12. F12. These securities are held directly by Purpose Alternative Credit Fund - T LLC.
Underlying shares 2,000,000 shares Total Class A Common Stock referenced by reported call options
Exercise price $130.00 per share Exercise price for each reported call option position
Exercise and expiration date March 19, 2027 Exercise and expiration date for the call options
Number of derivative transactions 9 transactions Total derivative entries reported in this insider filing
Net derivative direction 2,000,000 shares sold Net derivative exposure from call options described as an obligation to sell
Call option (obligation to sell financial
"security_title: "Call option (obligation to sell)""
Class A Common Stock financial
"underlying_security_title: "Class A Common Stock""
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.
pecuniary interest financial
"disclaims beneficial ownership ... except to the extent of its or his pecuniary interest therein"
indirect ownership financial
"direct_or_indirect: "I" and nature_of_ownership: "Footnotes""
beneficial ownership financial
"disclaims beneficial ownership of these shares of Common Stock of the Issuer"
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.

FAQ

How many CoreWeave (CRWV) shares are referenced by the reported call options?
The reported call option positions reference 2,000,000 underlying shares of CoreWeave Class A Common Stock. Each option has an exercise price of $130.00 and an exercise and expiration date of March 19, 2027, according to the disclosure.

What type of derivative did Magnetar entities report for CoreWeave (CRWV)?
The filing lists call options described as an obligation to sell referencing CoreWeave Class A Common Stock. These derivatives carry a $130.00 exercise price and a shared exercise and expiration date of March 19, 2027 across the nine reported transactions.

Were the CoreWeave (CRWV) derivative holdings reported as direct or indirect by Magnetar?
All reported positions are classified as indirect ownership, held through specific Magnetar-managed funds such as CW Opportunity 2 LP and others. The advisers and parent entities disclaim beneficial ownership except for any pecuniary interest they may have.

Which entities directly hold the CoreWeave (CRWV) call options reported by Magnetar?
The options are held directly by various Magnetar funds, including CW Opportunity 2 LP, CW Opportunity LLC, Magnetar Capital Master Fund, Magnetar Constellation Master Fund, Magnetar Lake Credit Fund, Magnetar Longhorn Fund, Magnetar Structured Credit Fund and two Purpose Alternative Credit Funds.

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Form 4 Insider Transactions: What Each Field Means →
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)
08/12/2026		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
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
Call option (obligation to sell)$13008/12/2026S183,64003/19/202703/19/2027Class A Common Stock183,640$3,659,027183,640IFootnotes(1)(2)(3)(4)
Call option (obligation to sell)$13008/12/2026S627,48603/19/202703/19/2027Class A Common Stock627,486$12,502,658.55627,486IFootnotes(1)(2)(3)(5)
Call option (obligation to sell)$13008/12/2026S8,50303/19/202703/19/2027Class A Common Stock8,503$169,422.288,503IFootnotes(1)(2)(3)(6)
Call option (obligation to sell)$13008/12/2026S183,38103/19/202703/19/2027Class A Common Stock183,381$3,653,866.43183,381IFootnotes(1)(2)(3)(7)
Call option (obligation to sell)$13008/12/2026S251,76203/19/202703/19/2027Class A Common Stock251,762$5,016,357.85251,762IFootnotes(1)(2)(3)(8)
Call option (obligation to sell)$13008/12/2026S315,58303/19/202703/19/2027Class A Common Stock315,583$6,287,991.28315,583IFootnotes(1)(2)(3)(9)
Call option (obligation to sell)$13008/12/2026S268,44603/19/202703/19/2027Class A Common Stock268,446$5,348,786.55268,446IFootnotes(1)(2)(3)(10)
Call option (obligation to sell)$13008/12/2026S133,27603/19/202703/19/2027Class A Common Stock133,276$2,655,524.3133,276IFootnotes(1)(2)(3)(11)
Call option (obligation to sell)$13008/12/2026S27,92303/19/202703/19/2027Class A Common Stock27,923$556,365.7827,923IFootnotes(1)(2)(3)(12)
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, Magnetar Capital Master Fund, Ltd, Magnetar Constellation Master Fund, Ltd, Magnetar Longhorn Fund LP, 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 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 Capital Master Fund, Ltd.
7. These securities are held directly by Magnetar Constellation Master Fund, Ltd.
8. These securities are held directly by Magnetar Lake Credit Fund LLC.
9. These securities are held directly by Magnetar Longhorn Fund LP.
10. These securities are held directly by Magnetar Structured Credit Fund, LP DBA Magnetar Constellation Onshore Fund. They are not separate legal entities.
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.
/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 LLC08/14/2026
/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 LP08/14/2026
/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman, as Administrative Manager of Supernova Management LLC08/14/2026
/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman08/14/2026
** 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