STOCK TITAN

Magnetar funds trim CoreWeave (CRWV) warrant stake but retain large holdings

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

Rhea-AI Filing Summary

CoreWeave, Inc. received a Form 4 showing an open-market sale of derivative securities by Magnetar-affiliated entities. An entity managed by Magnetar Financial LLC sold warrants representing 50,000 shares of Class A Common Stock at $127.0005 per share, with an exercise price of $1.5495 and expiration on October 17, 2029. After this transaction, that warrant position shows 24,505 underlying shares remaining, while other warrant holdings continue, including positions over 229,011 and 218,601 underlying shares. The reporting persons and related Magnetar funds disclaim beneficial ownership except to the extent of their pecuniary interest.

Positive

  • None.

Negative

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Insights

Magnetar-linked funds reported a sizable warrant sale but retain large remaining positions.

Entities associated with Magnetar Financial LLC reported selling warrants linked to 50,000 CoreWeave Class A shares at about $127.0005 per share. These are derivative securities with a low exercise price of $1.5495, expiring on October 17, 2029.

The filing also lists multiple remaining warrant positions, including tranches over 229,011 and 218,601 underlying shares, suggesting this is a partial adjustment rather than a full exit. Each Magnetar entity and David J. Snyderman disclaim beneficial ownership beyond their economic interest, indicating these are fund-level positions rather than personal trades.

Insider Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC, Snyderman David J.
Role null | null | null | null
Sold 50,000 shs ($6.35M)
Type Security Shares Price Value
Sale Warrant (right to buy) 50,000 $127.0005 $6.35M
holding Warrant (right to buy) -- -- --
holding Warrant (right to buy) -- -- --
holding Warrant (right to buy) -- -- --
holding Warrant (right to buy) -- -- --
holding Warrant (right to buy) -- -- --
holding Warrant (right to buy) -- -- --
holding Warrant (right to buy) -- -- --
holding Warrant (right to buy) -- -- --
Holdings After Transaction: Warrant (right to buy) — 24,505 shares (Indirect, Footnotes)
Footnotes (1)
  1. Magnetar Financial LLC ("Magnetar Financial") serves as the investment adviser to each of 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 Magnetar SC Fund Ltd. These securities are held directly by Magnetar Alpha Star Fund LLC. 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 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.
Warrants sold 50,000 underlying shares Open-market sale of warrants on Class A Common Stock
Sale price $127.0005 per share Transaction price for underlying shares in warrant sale
Exercise price $1.5495 per share Warrant exercise price for CoreWeave Class A Common Stock
Remaining shares in sold tranche 24,505 underlying shares Total shares following the 50,000-share warrant sale
Large remaining warrant block 229,011 underlying shares One of several remaining warrant positions held indirectly
Second large warrant block 218,601 underlying shares Another remaining warrant position held indirectly
Warrant expiration October 17, 2029 Expiration date for all listed warrant positions
Net share direction 50,000 net-sell shares Net buy/sell direction across reported transactions
Warrant (right to buy) financial
"Security title is listed as "Warrant (right to buy)" tied to Class A shares."
Class A Common Stock financial
"Each warrant’s underlying security title is "Class A Common Stock" of CoreWeave."
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 regulatory
"The disclosure states they disclaim beneficial ownership except for pecuniary interest."
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.
ten percent owner regulatory
"Each reporting person is identified as a ten percent owner of the issuer."
pecuniary interest financial
"They disclaim beneficial ownership except to the extent of their pecuniary interest therein."
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)
05/05/2026
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
Warrant (right to buy)$1.549505/05/2026S50,00010/17/202210/17/2029Class A Common Stock50,000$127.000524,505IFootnotes(1)(2)(3)(4)
Warrant (right to buy)$1.549510/17/202210/17/2029Class A Common Stock114,505114,505IFootnotes(1)(2)(3)(5)
Warrant (right to buy)$1.549510/17/202210/17/2029Class A Common Stock124,915124,915IFootnotes(1)(2)(3)(6)
Warrant (right to buy)$1.549510/17/202210/17/2029Class A Common Stock218,601218,601IFootnotes(1)(2)(3)(7)
Warrant (right to buy)$1.549510/17/202210/17/2029Class A Common Stock20,81920,819IFootnotes(1)(2)(3)(8)
Warrant (right to buy)$1.549510/17/202210/17/2029Class A Common Stock62,45762,457IFootnotes(1)(2)(3)(9)
Warrant (right to buy)$1.549510/17/202210/17/2029Class A Common Stock229,011229,011IFootnotes(1)(2)(3)(10)
Warrant (right to buy)$1.549510/17/202210/17/2029Class A Common Stock145,734145,734IFootnotes(1)(2)(3)(11)
Warrant (right to buy)$1.549510/17/202210/17/2029Class A Common Stock10,40910,409IFootnotes(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 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 Magnetar SC Fund Ltd.
5. These securities are held directly by Magnetar Alpha Star Fund LLC.
6. These securities are held directly by Magnetar Constellation Master Fund, Ltd.
7. These securities are held directly by Magnetar Lake Credit Fund LLC.
8. These securities are held directly by Magnetar Longhorn Fund LP.
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.
/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)

FAQ

What type of security did Magnetar funds transact in for CoreWeave (CRWV)?

The transaction involved a Warrant (right to buy) linked to CoreWeave Class A Common Stock. Each warrant allows purchase at an exercise price of $1.5495 per share, with the warrants expiring on October 17, 2029, according to the disclosure details.

How large is the reported CoreWeave (CRWV) warrant sale by Magnetar entities?

The Form 4 shows an open-market sale of warrants representing 50,000 underlying shares of CoreWeave Class A Common Stock at about $127.0005 per share. After the sale, that specific warrant position reports 24,505 underlying shares remaining.

Do Magnetar and David J. Snyderman claim full beneficial ownership of the CoreWeave (CRWV) warrants?

No. The disclosure states that the Magnetar funds, Magnetar Financial, Magnetar Capital Partners, Supernova Management and David J. Snyderman disclaim beneficial ownership, except to the extent of their pecuniary interest. This indicates the positions are primarily held at the fund level.

What CoreWeave (CRWV) warrant holdings remain after this reported sale?

The filing lists multiple remaining warrant positions with an exercise price of $1.5495 and expiration on October 17, 2029. These include tranches over 229,011 and 218,601 underlying shares, alongside other indirect holdings managed by Magnetar-related entities.