STOCK TITAN
  1. Home
  2. Sec-filings
  3. CRWV
  4. [Form 4] CoreWeave, Inc. Insider Trading Activity

Derivative sales on 1M CoreWeave (CRWV) shares by Magnetar funds

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

Rhea-AI Filing Summary

Magnetar‑managed funds and related entities reported a series of derivative transactions linked to CoreWeave, Inc. Class A common stock. On May 4, 2026, they executed 12 open‑market sales of call options described as an obligation to sell, tied to an aggregate of 1,000,000 underlying shares at a $175.00 per share exercise price, with options expiring on December 18, 2026. The securities are held indirectly through various Magnetar funds, and each Magnetar entity and David J. Snyderman disclaim beneficial ownership except to the extent of their pecuniary interest.

Positive

  • None.

Negative

  • None.

Insights

Magnetar‑associated funds sold call options on 1,000,000 CoreWeave shares in a sizable but structured derivative move.

The filing shows 12 open‑market sales of call options referencing 1,000,000 shares of CoreWeave Class A common stock at an exercise price of $175.00 per share, all dated May 4, 2026. The options expire on December 18, 2026, and are recorded as indirect holdings.

The securities are held across multiple Magnetar funds, with footnotes stating each fund, Magnetar entities, and David J. Snyderman disclaim beneficial ownership except for their pecuniary interest. This suggests the transactions reflect portfolio‑level positioning rather than a personal discretionary trade by an individual executive.

Because the filing does not show remaining derivative or share positions, the overall size of Magnetar‑related exposure relative to CoreWeave’s equity is not visible here. Subsequent company and ownership filings may provide more clarity on how these derivative positions fit into broader holdings.

Insider Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC, Snyderman David J.
Role null | null | null | null
Sold 1,000,000 shs ($2838.66B)
Type Security Shares Price Value
Sale Call option (obligation to sell) 84,806 $1,725,802.10 $146.36B
Sale Call option (obligation to sell) 268,932 $5,472,766.20 $1471.80B
Sale Call option (obligation to sell) 35,258 $717,500.30 $25.30B
Sale Call option (obligation to sell) 3,644 $74,155.40 $270.22M
Sale Call option (obligation to sell) 78,595 $1,599,408.25 $125.71B
Sale Call option (obligation to sell) 107,902 $2,195,805.70 $236.93B
Sale Call option (obligation to sell) 135,255 $2,752,439.25 $372.28B
Sale Call option (obligation to sell) 30,560 $621,896.00 $19.01B
Sale Call option (obligation to sell) 115,053 $2,341,328.55 $269.38B
Sale Call option (obligation to sell) 70,907 $1,442,957.45 $102.32B
Sale Call option (obligation to sell) 57,120 $1,162,392.00 $66.40B
Sale Call option (obligation to sell) 11,968 $243,548.80 $2.91B
Holdings After Transaction: Call option (obligation to sell) — 84,806 shares (Indirect, Footnotes)
Footnotes (1)
  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, 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"). 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 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 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.
Underlying shares in call options sold 1,000,000 shares Aggregate underlying CoreWeave Class A common stock
Exercise price of call options $175.00 per share Conversion/exercise price for Class A common stock
Number of derivative transactions 12 transactions Open-market sales of call options on May 4, 2026
Net share direction 1,000,000 shares net sold Net sell direction from transaction summary
Option expiration date December 18, 2026 Expiration for reported call options
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.
indirect ownership financial
"ownership_type: "indirect", ownership_code: "I""
pecuniary interest financial
"disclaims beneficial ownership ... except to the extent of its or his pecuniary interest therein"
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.
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)
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
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)$17505/04/2026S84,80612/18/202612/18/2026Class A Common Stock84,806$1,725,802.184,806IFootnotes(1)(2)(3)(4)
Call option (obligation to sell)$17505/04/2026S268,93212/18/202612/18/2026Class A Common Stock268,932$5,472,766.2268,932IFootnotes(1)(2)(3)(5)
Call option (obligation to sell)$17505/04/2026S35,25812/18/202612/18/2026Class A Common Stock35,258$717,500.335,258IFootnotes(1)(2)(3)(6)
Call option (obligation to sell)$17505/04/2026S3,64412/18/202612/18/2026Class A Common Stock3,644$74,155.43,644IFootnotes(1)(2)(3)(7)
Call option (obligation to sell)$17505/04/2026S78,59512/18/202612/18/2026Class A Common Stock78,595$1,599,408.2578,595IFootnotes(1)(2)(3)(8)
Call option (obligation to sell)$17505/04/2026S107,90212/18/202612/18/2026Class A Common Stock107,902$2,195,805.7107,902IFootnotes(1)(2)(3)(9)
Call option (obligation to sell)$17505/04/2026S135,25512/18/202612/18/2026Class A Common Stock135,255$2,752,439.25135,255IFootnotes(1)(2)(3)(10)
Call option (obligation to sell)$17505/04/2026S30,56012/18/202612/18/2026Class A Common Stock30,560$621,89630,560IFootnotes(1)(2)(3)(11)
Call option (obligation to sell)$17505/04/2026S115,05312/18/202612/18/2026Class A Common Stock115,053$2,341,328.55115,053IFootnotes(1)(2)(3)(12)
Call option (obligation to sell)$17505/04/2026S70,90712/18/202612/18/2026Class A Common Stock70,907$1,442,957.4570,907IFootnotes(1)(2)(3)(13)
Call option (obligation to sell)$17505/04/2026S57,12012/18/202612/18/2026Class A Common Stock57,120$1,162,39257,120IFootnotes(1)(2)(3)(14)
Call option (obligation to sell)$17505/04/2026S11,96812/18/202612/18/2026Class A Common Stock11,968$243,548.811,968IFootnotes(1)(2)(3)(15)
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, 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.
/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

FAQ

How many CoreWeave (CRWV) shares are linked to the reported call option sales?

The reported call option sales reference an aggregate of 1,000,000 underlying CoreWeave Class A shares. Each transaction involves a call option described as an obligation to sell, meaning the sellers could be required to deliver shares at the $175.00 exercise price.

Who is responsible for the CoreWeave (CRWV) derivative transactions reported in this Form 4?

The transactions are attributed to Magnetar-managed funds and related entities, including CW Opportunity 2 LP and other Magnetar funds. Footnotes state each Magnetar entity and David J. Snyderman disclaim beneficial ownership except for their pecuniary interest in the securities.

Are the CoreWeave (CRWV) Form 4 transactions direct stock sales or derivatives?

The filing reports derivative transactions, not direct stock sales. Each entry involves a call option (obligation to sell) on CoreWeave Class A common stock, with an exercise price of $175.00 per share and expiration on December 18, 2026.