STOCK TITAN

Magnetar-linked funds sell 1.2M CoreWeave (CRWV) shares in open market

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

Rhea-AI Filing Summary

CoreWeave, Inc. saw significant insider activity as Magnetar-affiliated funds executed multiple open-market sales of Class A Common Stock. Investment entities advised or controlled by Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC and associated with David J. Snyderman, all reporting as ten percent owners, sold an aggregate of 1,202,656 shares on May 6, 2026. The trades were executed across 29 transactions at weighted average prices generally between about $134 and $138 per share, with detailed price ranges disclosed in the footnotes. The securities are held directly by several Magnetar funds, including CW Opportunity 2 LP, CW Opportunity LLC, Magnetar Alpha Star Fund LLC, Magnetar Capital Master Fund, Ltd, Magnetar Constellation Master Fund, Ltd and Magnetar Lake Credit Fund LLC, while the reporting persons disclaim beneficial ownership beyond their pecuniary interests. Post-trade holdings for the largest referenced account in the filing reached 18,583,060 Class A shares held indirectly.

Positive

  • None.

Negative

  • None.
Insider Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC, Snyderman David J.
Role null | null | null | null
Sold 1,202,656 shs ($164.44M)
Type Security Shares Price Value
Sale Class A Common Stock 30,973 $134.51 $4.17M
Sale Class A Common Stock 3,936 $135.78 $534K
Sale Class A Common Stock 87,537 $136.85 $11.98M
Sale Class A Common Stock 54,883 $137.89 $7.57M
Sale Class A Common Stock 161 $138.63 $22K
Sale Class A Common Stock 98,279 $134.51 $13.22M
Sale Class A Common Stock 12,482 $135.78 $1.69M
Sale Class A Common Stock 277,563 $136.85 $37.98M
Sale Class A Common Stock 174,066 $137.89 $24.00M
Sale Class A Common Stock 497 $138.63 $69K
Sale Class A Common Stock 12,880 $134.51 $1.73M
Sale Class A Common Stock 1,636 $135.78 $222K
Sale Class A Common Stock 36,391 $136.85 $4.98M
Sale Class A Common Stock 13,435 $137.86 $1.85M
Sale Class A Common Stock 1,325 $134.51 $178K
Sale Class A Common Stock 169 $135.78 $23K
Sale Class A Common Stock 3,763 $136.85 $515K
Sale Class A Common Stock 2,358 $137.89 $325K
Sale Class A Common Stock 7 $138.63 $970.41
Sale Class A Common Stock 28,710 $134.51 $3.86M
Sale Class A Common Stock 3,649 $135.78 $495K
Sale Class A Common Stock 81,124 $136.85 $11.10M
Sale Class A Common Stock 50,861 $137.89 $7.01M
Sale Class A Common Stock 146 $138.63 $20K
Sale Class A Common Stock 39,413 $134.51 $5.30M
Sale Class A Common Stock 5,009 $135.78 $680K
Sale Class A Common Stock 111,373 $136.85 $15.24M
Sale Class A Common Stock 69,830 $137.89 $9.63M
Sale Class A Common Stock 200 $138.63 $28K
Holdings After Transaction: Class A Common Stock — 4,374,260 shares (Indirect, Footnotes)
Footnotes (1)
  1. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $134.38 to $135.30, inclusive. The reporting person undertakes to provide to CoreWeave, Inc. (the "Issuer"), any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote and in footnotes 2, 3, 4, 5, and 6. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $135.50 to $136.00, inclusive. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $136.50 to $137.43, inclusive. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $137.50 to $138.05, inclusive. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $137.50 to $138.10, inclusive. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $138.50 to $138.68, inclusive. 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, and Magnetar Constellation Master Fund, Ltd 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.
Total shares sold 1,202,656 shares Aggregate open-market sales on May 6, 2026
Price range (F1 footnote) $134.38–$135.30 Weighted average sale price range for certain transactions
Price range (F6 footnote) $138.50–$138.68 Weighted average sale price range for certain transactions
Example block sale 277,563 shares at $136.85 One reported open-market sale of Class A Common Stock
Largest post-trade holding 18,583,060 shares Indirect Class A holdings in the largest referenced account after sales
Number of sale transactions 29 transactions Non-derivative open-market sales reported on Form 4
weighted average price financial
"The price reported in Column 4 is a weighted average price."
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
ten percent owner regulatory
"each reporting person is identified as a ten percent owner of the issuer"
beneficial ownership regulatory
"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
"except to the extent of its or his pecuniary interest therein"
Class A Common Stock financial
"security title is reported as 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.
open-market sale financial
"transaction_action is described as open-market sale"
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.
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)
05/06/2026
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 Stock05/06/2026S30,973D$134.51(1)4,374,260IFootnotes(7)(8)(9)(10)
Class A Common Stock05/06/2026S3,936D$135.78(2)4,370,324IFootnotes(7)(8)(9)(10)
Class A Common Stock05/06/2026S87,537D$136.85(3)4,282,787IFootnotes(7)(8)(9)(10)
Class A Common Stock05/06/2026S54,883D$137.89(5)4,227,904IFootnotes(7)(8)(9)(10)
Class A Common Stock05/06/2026S161D$138.63(6)4,227,743IFootnotes(7)(8)(9)(10)
Class A Common Stock05/06/2026S98,279D$134.51(1)18,583,060IFootnotes(7)(8)(9)(11)
Class A Common Stock05/06/2026S12,482D$135.78(2)18,570,578IFootnotes(7)(8)(9)(11)
Class A Common Stock05/06/2026S277,563D$136.85(3)18,293,015IFootnotes(7)(8)(9)(11)
Class A Common Stock05/06/2026S174,066D$137.89(5)18,118,949IFootnotes(7)(8)(9)(11)
Class A Common Stock05/06/2026S497D$138.63(6)18,118,452IFootnotes(7)(8)(9)(11)
Class A Common Stock05/06/2026S12,880D$134.51(1)1,100,379IFootnotes(7)(8)(9)(12)
Class A Common Stock05/06/2026S1,636D$135.78(2)1,098,743IFootnotes(7)(8)(9)(12)
Class A Common Stock05/06/2026S36,391D$136.85(3)1,062,352IFootnotes(7)(8)(9)(12)
Class A Common Stock05/06/2026S13,435D$137.86(4)1,048,917IFootnotes(7)(8)(9)(12)
Class A Common Stock05/06/2026S1,325D$134.51(1)251,842IFootnotes(7)(8)(9)(13)
Class A Common Stock05/06/2026S169D$135.78(2)251,673IFootnotes(7)(8)(9)(13)
Class A Common Stock05/06/2026S3,763D$136.85(3)247,910IFootnotes(7)(8)(9)(13)
Class A Common Stock05/06/2026S2,358D$137.89(5)245,552IFootnotes(7)(8)(9)(13)
Class A Common Stock05/06/2026S7D$138.63(6)245,545IFootnotes(7)(8)(9)(13)
Class A Common Stock05/06/2026S28,710D$134.51(1)3,973,492IFootnotes(7)(8)(9)(14)
Class A Common Stock05/06/2026S3,649D$135.78(2)3,969,843IFootnotes(7)(8)(9)(14)
Class A Common Stock05/06/2026S81,124D$136.85(3)3,888,719IFootnotes(7)(8)(9)(14)
Class A Common Stock05/06/2026S50,861D$137.89(5)3,837,858IFootnotes(7)(8)(9)(14)
Class A Common Stock05/06/2026S146D$138.63(6)3,837,712IFootnotes(7)(8)(9)(14)
Class A Common Stock05/06/2026S39,413D$134.51(1)4,905,610IFootnotes(7)(8)(9)(15)
Class A Common Stock05/06/2026S5,009D$135.78(2)4,900,601IFootnotes(7)(8)(9)(15)
Class A Common Stock05/06/2026S111,373D$136.85(3)4,789,228IFootnotes(7)(8)(9)(15)
Class A Common Stock05/06/2026S69,830D$137.89(5)4,719,398IFootnotes(7)(8)(9)(15)
Class A Common Stock05/06/2026S200D$138.63(6)4,719,198IFootnotes(7)(8)(9)(15)
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. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $134.38 to $135.30, inclusive. The reporting person undertakes to provide to CoreWeave, Inc. (the "Issuer"), any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote and in footnotes 2, 3, 4, 5, and 6.
2. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $135.50 to $136.00, inclusive.
3. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $136.50 to $137.43, inclusive.
4. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $137.50 to $138.05, inclusive.
5. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $137.50 to $138.10, inclusive.
6. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $138.50 to $138.68, inclusive.
7. 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, and Magnetar Constellation Master Fund, Ltd and the manager of Magnetar Alpha Star Fund LLC and Magnetar Lake Credit Fund LLC (collectively, the "Magnetar Funds").
8. 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.
9. 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.
10. These securities are held directly by CW Opportunity 2 LP.
11. These securities are held directly by CW Opportunity LLC.
12. These securities are held directly by Magnetar Alpha Star Fund LLC.
13. These securities are held directly by Magnetar Capital Master Fund, Ltd.
14. These securities are held directly by Magnetar Constellation Master Fund, Ltd.
15. These securities are held directly by Magnetar Lake Credit Fund 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 LLC05/08/2026
/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 LP05/08/2026
/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman, as Administrative Manager of Supernova Management LLC05/08/2026
/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman05/08/2026
** 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

At what prices were the CoreWeave (CRWV) shares sold by Magnetar funds?

The reported prices are weighted averages, with transactions executed in ranges roughly between $134.38 and $138.68 per share. Footnotes explain that individual trades occurred at multiple prices within these bands, and full price breakdowns are available to the issuer, security holders, or SEC staff on request.

Who actually holds the CoreWeave (CRWV) shares involved in the Magnetar Form 4?

The shares are held directly by several Magnetar-managed funds, including CW Opportunity 2 LP, CW Opportunity LLC, Magnetar Alpha Star Fund LLC, Magnetar Lake Credit Fund LLC and certain master funds. Magnetar Financial, Magnetar Capital Partners, Supernova Management and David J. Snyderman report indirectly and disclaim beneficial ownership beyond pecuniary interest.

How many CoreWeave (CRWV) shares did Magnetar-linked entities hold after these trades?

The filing lists post-transaction positions for multiple accounts, with the largest referenced account showing 18,583,060 Class A shares held indirectly after the sales. Other accounts also report continuing indirect holdings, indicating that Magnetar-managed funds retain sizable positions following the disclosed transactions.

What does it mean that the CoreWeave (CRWV) sale prices are "weighted average"?

A weighted average price means shares were sold through many individual trades at different prices, then combined into a single average figure. Footnotes state that trades occurred within specified price ranges and that detailed, trade-by-trade pricing information can be provided upon request to eligible parties.