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

Magnetar funds sell calls on 1M CoreWeave shares

CoreWeave, Inc. reported a Form 4 showing that investment funds advised by Magnetar Financial LLC and related entities entered into derivative sales tied to CoreWeave stock.

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

Rhea-AI Filing Summary

CoreWeave, Inc. reported a Form 4 showing that investment funds advised by Magnetar Financial LLC and related entities entered into derivative sales tied to CoreWeave stock. On May 1, 2026, these Magnetar-managed funds sold call options labeled as an obligation to sell, referencing a total of 1,000,000 shares of CoreWeave Class A Common Stock. The options carry strike prices of $155 and $160 per share and expire on December 18, 2026. The positions are held indirectly by various Magnetar funds such as CW Opportunity 2 LP and CW Opportunity LLC, while Magnetar Financial, Magnetar Capital Partners, Supernova Management and David J. Snyderman each disclaim beneficial ownership except for 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 1,000,000 shs
Type Security Shares Price Value
Sale Call option (obligation to sell) 42,403 $858,660.75 $36.41B
Sale Call option (obligation to sell) 42,403 $858,660.75 $36.41B
Sale Call option (obligation to sell) 134,466 $2,722,936.50 as filed --
Sale Call option (obligation to sell) 134,466 $2,722,936.50 as filed --
Sale Call option (obligation to sell) 17,629 $356,987.25 $6.29B
Sale Call option (obligation to sell) 17,629 $356,987.25 $6.29B
Sale Call option (obligation to sell) 1,822 $36,895.50 $67.22M
Sale Call option (obligation to sell) 1,822 $36,895.50 $67.22M
Sale Call option (obligation to sell) 39,297 $795,764.25 $31.27B
Sale Call option (obligation to sell) 39,298 $795,784.50 $31.27B
Sale Call option (obligation to sell) 53,951 $1,092,507.75 $58.94B
Sale Call option (obligation to sell) 53,951 $1,092,507.75 $58.94B
Sale Call option (obligation to sell) 67,628 $1,369,467.00 $92.61B
Sale Call option (obligation to sell) 67,627 $1,369,446.75 $92.61B
Sale Call option (obligation to sell) 15,280 $309,420.00 $4.73B
Sale Call option (obligation to sell) 15,280 $309,420.00 $4.73B
Sale Call option (obligation to sell) 57,526 $1,164,901.50 $67.01B
Sale Call option (obligation to sell) 57,527 $1,164,921.75 $67.01B
Sale Call option (obligation to sell) 35,454 $717,943.50 $25.45B
Sale Call option (obligation to sell) 35,453 $717,923.25 $25.45B
Sale Call option (obligation to sell) 28,560 $578,340.00 $16.52B
Sale Call option (obligation to sell) 28,560 $578,340.00 $16.52B
Sale Call option (obligation to sell) 5,984 $121,176.00 $725.12M
Sale Call option (obligation to sell) 5,984 $121,176.00 $725.12M
  • Call option (obligation to sell), May 1, 2026. Price shown as filed: $2,722,936.50 per share is far above the $119.01 close on May 1, 2026, so no transaction value is shown.
  • Call option (obligation to sell), May 1, 2026. Price shown as filed: $2,722,936.50 per share is far above the $119.01 close on May 1, 2026, so no transaction value is shown.
Holdings After Transaction: Call option (obligation to sell) — 5,000,000 contracts (Indirect, Footnotes)
Footnotes (15)
  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, 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.
Underlying shares for call options sold 1,000,000 shares Total underlying Class A Common Stock referenced in derivative sales on May 1, 2026
Strike price series 1 $160 per share Conversion or exercise price on multiple call option positions expiring December 18, 2026
Strike price series 2 $155 per share Alternative conversion or exercise price on related call option positions expiring December 18, 2026
Derivative sale count 24 transactions Total number of derivative transactions reported in the Form 4
Net share direction -1,000,000 shares Net sell direction from transaction summary for underlying shares tied to options
Largest remaining derivative line item 671,085 options Total shares following transaction for one call option position at $155–$160 strikes
Ten percent owner status 4 reporting persons Magnetar Financial, Magnetar Capital Partners, Supernova Management and David J. Snyderman listed as ten percent owners
Call option (obligation to sell) financial
"security_title: "Call option (obligation to sell)" on each derivative line"
Class A Common Stock financial
"underlying_security_title: "Class A Common Stock" for all option positions"
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.
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.
pecuniary interest financial
"disclaims beneficial ownership ... except to the extent of its or his pecuniary interest therein"
ten percent owner regulatory
"each reporting person flagged as is_ten_percent_owner: 1"
indirect ownership financial
"direct_or_indirect: "I" and ownership_type: "indirect" for all transactions"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many CoreWeave (CRWV) shares are referenced in the reported call options?
The reported call option transactions reference a total of 1,000,000 CoreWeave Class A Common shares. This figure comes from the Form 4 transaction summary, which aggregates all derivative sales disclosed for the May 1, 2026 trading date.

What are the strike prices and expiration date of the CoreWeave (CRWV) call options?
The call options reported have strike prices of $155 and $160 per share and expire on December 18, 2026. Each option is described as a call option with an obligation to sell CoreWeave Class A Common Stock at those exercise prices.

Are the CoreWeave (CRWV) option positions held directly by David J. Snyderman?
No, the filing states that the securities are held directly by specific Magnetar funds, not by David J. Snyderman personally. Snyderman and the other reporting entities disclaim beneficial ownership of the CoreWeave shares except for any pecuniary interest they may have.

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

Form 4 Insider Transactions: What Each Field Means →
See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google
Add on Google
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)
05/01/2026		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)$15505/01/2026S42,40312/18/202612/18/2026Class A Common Stock42,403$858,660.75216,253IFootnotes(1)(2)(3)(4)
Call option (obligation to sell)$16005/01/2026S42,40312/18/202612/18/2026Class A Common Stock42,403$858,660.75216,253IFootnotes(1)(2)(3)(4)
Call option (obligation to sell)$15505/01/2026S134,46612/18/202612/18/2026Class A Common Stock134,466$2,722,936.5671,085IFootnotes(1)(2)(3)(5)
Call option (obligation to sell)$16005/01/2026S134,46612/18/202612/18/2026Class A Common Stock134,466$2,722,936.5671,085IFootnotes(1)(2)(3)(5)
Call option (obligation to sell)$15505/01/2026S17,62912/18/202612/18/2026Class A Common Stock17,629$356,987.2587,981IFootnotes(1)(2)(3)(6)
Call option (obligation to sell)$16005/01/2026S17,62912/18/202612/18/2026Class A Common Stock17,629$356,987.2587,981IFootnotes(1)(2)(3)(6)
Call option (obligation to sell)$15505/01/2026S1,82212/18/202612/18/2026Class A Common Stock1,822$36,895.59,094IFootnotes(1)(2)(3)(7)
Call option (obligation to sell)$16005/01/2026S1,82212/18/202612/18/2026Class A Common Stock1,822$36,895.59,094IFootnotes(1)(2)(3)(7)
Call option (obligation to sell)$15505/01/2026S39,29712/18/202612/18/2026Class A Common Stock39,297$795,764.25196,122IFootnotes(1)(2)(3)(8)
Call option (obligation to sell)$16005/01/2026S39,29812/18/202612/18/2026Class A Common Stock39,298$795,784.5196,123IFootnotes(1)(2)(3)(8)
Call option (obligation to sell)$15505/01/2026S53,95112/18/202612/18/2026Class A Common Stock53,951$1,092,507.75269,256IFootnotes(1)(2)(3)(9)
Call option (obligation to sell)$16005/01/2026S53,95112/18/202612/18/2026Class A Common Stock53,951$1,092,507.75269,256IFootnotes(1)(2)(3)(9)
Call option (obligation to sell)$15505/01/2026S67,62812/18/202612/18/2026Class A Common Stock67,628$1,369,467337,511IFootnotes(1)(2)(3)(10)
Call option (obligation to sell)$16005/01/2026S67,62712/18/202612/18/2026Class A Common Stock67,627$1,369,446.75337,510IFootnotes(1)(2)(3)(10)
Call option (obligation to sell)$15505/01/2026S15,28012/18/202612/18/2026Class A Common Stock15,280$309,42076,259IFootnotes(1)(2)(3)(11)
Call option (obligation to sell)$16005/01/2026S15,28012/18/202612/18/2026Class A Common Stock15,280$309,42076,259IFootnotes(1)(2)(3)(11)
Call option (obligation to sell)$15505/01/2026S57,52612/18/202612/18/2026Class A Common Stock57,526$1,164,901.5287,099IFootnotes(1)(2)(3)(12)
Call option (obligation to sell)$16005/01/2026S57,52712/18/202612/18/2026Class A Common Stock57,527$1,164,921.75287,099IFootnotes(1)(2)(3)(12)
Call option (obligation to sell)$15505/01/2026S35,45412/18/202612/18/2026Class A Common Stock35,454$717,943.5176,940IFootnotes(1)(2)(3)(13)
Call option (obligation to sell)$16005/01/2026S35,45312/18/202612/18/2026Class A Common Stock35,453$717,923.25176,940IFootnotes(1)(2)(3)(13)
Call option (obligation to sell)$15505/01/2026S28,56012/18/202612/18/2026Class A Common Stock28,560$578,340142,536IFootnotes(1)(2)(3)(14)
Call option (obligation to sell)$16005/01/2026S28,56012/18/202612/18/2026Class A Common Stock28,560$578,340142,536IFootnotes(1)(2)(3)(14)
Call option (obligation to sell)$15505/01/2026S5,98412/18/202612/18/2026Class A Common Stock5,984$121,17629,864IFootnotes(1)(2)(3)(15)
Call option (obligation to sell)$16005/01/2026S5,98412/18/202612/18/2026Class A Common Stock5,984$121,17629,864IFootnotes(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 LLC05/01/2026
/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 LP05/01/2026
/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman, as Administrative Manager of Supernova Management LLC05/01/2026
/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman05/01/2026
** 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

Keep reading

More on CRWV

Trending in the feed

Open the live feed

From our desk