STOCK TITAN

Magnetar-linked funds trim CoreWeave (CRWV) stake with 857k-share sale

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

Rhea-AI Filing Summary

CoreWeave, Inc. large shareholder entities associated with Magnetar reported multiple open-market sales of Class A Common Stock. On 2026-04-22, Magnetar-related funds sold a combined 857,367 shares across 28 transactions, at weighted average prices generally between $118.00 and $124.75 per share.

The shares are held directly by specific Magnetar funds, including Magnetar Constellation Master Fund, Magnetar Lake Credit Fund, Magnetar Longhorn Fund and Magnetar SC Fund, while Magnetar Financial LLC and related entities are listed as ten percent owners. Following the transactions, individual fund positions reported include figures such as 8,150,501 shares and 4,566,875 shares. Each Magnetar fund and related entity, as well as David J. Snyderman, disclaims beneficial ownership beyond their pecuniary interest.

Positive

  • None.

Negative

  • None.
Insider Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC, Snyderman David J.
Role null | null | null | null
Sold 857,367 shs ($104.72M)
Type Security Shares Price Value
Sale Class A Common Stock 2,744 $118.31 $325K
Sale Class A Common Stock 11,761 $119.48 $1.41M
Sale Class A Common Stock 19,603 $120.27 $2.36M
Sale Class A Common Stock 3,921 $121.00 $474K
Sale Class A Common Stock 108,248 $122.06 $13.21M
Sale Class A Common Stock 32,541 $124.00 $4.04M
Sale Class A Common Stock 12,445 $124.59 $1.55M
Sale Class A Common Stock 3,768 $118.31 $446K
Sale Class A Common Stock 16,147 $119.48 $1.93M
Sale Class A Common Stock 26,913 $120.27 $3.24M
Sale Class A Common Stock 5,383 $121.00 $651K
Sale Class A Common Stock 148,613 $122.06 $18.14M
Sale Class A Common Stock 44,676 $124.00 $5.54M
Sale Class A Common Stock 17,086 $124.59 $2.13M
Sale Class A Common Stock 4,723 $118.31 $559K
Sale Class A Common Stock 20,242 $119.48 $2.42M
Sale Class A Common Stock 33,734 $120.27 $4.06M
Sale Class A Common Stock 6,746 $121.00 $816K
Sale Class A Common Stock 186,284 $122.06 $22.74M
Sale Class A Common Stock 55,998 $124.00 $6.94M
Sale Class A Common Stock 21,418 $124.59 $2.67M
Sale Class A Common Stock 1,066 $118.31 $126K
Sale Class A Common Stock 4,573 $119.48 $546K
Sale Class A Common Stock 7,623 $120.27 $917K
Sale Class A Common Stock 1,525 $121.00 $185K
Sale Class A Common Stock 42,092 $122.06 $5.14M
Sale Class A Common Stock 12,654 $124.00 $1.57M
Sale Class A Common Stock 4,840 $124.59 $603K
Holdings After Transaction: Class A Common Stock — 4,566,875 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 $118.00 to $118.50, 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, and 5. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $119.00 to $119.90, inclusive. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $120.00 to $120.75, inclusive. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $123.50 to $124.35, inclusive. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $124.50 to $124.75, inclusive. Magnetar Financial LLC ("Magnetar Financial") serves as the investment adviser to each of Magnetar Constellation Master Fund, Ltd, Magnetar Longhorn Fund LP, and Magnetar SC Fund Ltd, and the manager of 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 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.
Shares sold 857,367 shares Total open-market sales of Class A Common Stock on April 22, 2026
Number of sale transactions 28 transactions Non-derivative open-market sales reported in the Form 4
Price range band 1 $118.00–$118.50 Weighted-average sale price range described in footnote F1
Price range band 2 $119.00–$119.90 Weighted-average sale price range described in footnote F2
Price range band 3 $120.00–$120.75 Weighted-average sale price range described in footnote F3
Price range band 4 $123.50–$124.35 Weighted-average sale price range described in footnote F4
Price range band 5 $124.50–$124.75 Weighted-average sale price range described in footnote F5
Example post-transaction holding 8,150,501 shares One Magnetar fund’s reported indirect CoreWeave position after sales
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.
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
"except to the extent of its or his pecuniary interest therein"
investment adviser financial
"Magnetar Financial LLC serves as the investment adviser to each of Magnetar"
An investment adviser is a person or firm that professionally manages money and gives recommendations about buying, selling, or holding investments. Like a financial coach or guide, they have a legal duty to act in a client's best financial interest, so their advice, fees and potential conflicts can directly affect returns and risk — making their role important for investors who want informed, accountable help with portfolios.
ten percent owner financial
"reporting persons are marked as is_ten_percent_owner: 1 in the data"
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)
04/22/2026
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 Stock04/22/2026S2,744D$118.31(1)4,566,875IFootnotes(6)(7)(8)(9)
Class A Common Stock04/22/2026S11,761D$119.48(2)4,555,114IFootnotes(6)(7)(8)(9)
Class A Common Stock04/22/2026S19,603D$120.27(3)4,535,511IFootnotes(6)(7)(8)(9)
Class A Common Stock04/22/2026S3,921D$1214,531,590IFootnotes(6)(7)(8)(9)
Class A Common Stock04/22/2026S108,248D$122.064,423,342IFootnotes(6)(7)(8)(9)
Class A Common Stock04/22/2026S32,541D$124(4)4,390,801IFootnotes(6)(7)(8)(9)
Class A Common Stock04/22/2026S12,445D$124.59(5)4,378,356IFootnotes(6)(7)(8)(9)
Class A Common Stock04/22/2026S3,768D$118.31(1)5,720,264IFootnotes(6)(7)(8)(10)
Class A Common Stock04/22/2026S16,147D$119.48(2)5,704,117IFootnotes(6)(7)(8)(10)
Class A Common Stock04/22/2026S26,913D$120.27(3)5,677,204IFootnotes(6)(7)(8)(10)
Class A Common Stock04/22/2026S5,383D$1215,671,821IFootnotes(6)(7)(8)(10)
Class A Common Stock04/22/2026S148,613D$122.065,523,208IFootnotes(6)(7)(8)(10)
Class A Common Stock04/22/2026S44,676D$124(4)5,478,532IFootnotes(6)(7)(8)(10)
Class A Common Stock04/22/2026S17,086D$124.59(5)5,461,446IFootnotes(6)(7)(8)(10)
Class A Common Stock04/22/2026S4,723D$118.31(1)8,150,501IFootnotes(6)(7)(8)(11)
Class A Common Stock04/22/2026S20,242D$119.48(2)8,130,259IFootnotes(6)(7)(8)(11)
Class A Common Stock04/22/2026S33,734D$120.27(3)8,096,525IFootnotes(6)(7)(8)(11)
Class A Common Stock04/22/2026S6,746D$1218,089,779IFootnotes(6)(7)(8)(11)
Class A Common Stock04/22/2026S186,284D$122.067,903,495IFootnotes(6)(7)(8)(11)
Class A Common Stock04/22/2026S55,998D$124(4)7,847,497IFootnotes(6)(7)(8)(11)
Class A Common Stock04/22/2026S21,418D$124.59(5)7,826,079IFootnotes(6)(7)(8)(11)
Class A Common Stock04/22/2026S1,066D$118.31(1)1,006,501IFootnotes(6)(7)(8)(12)
Class A Common Stock04/22/2026S4,573D$119.48(2)1,001,928IFootnotes(6)(7)(8)(12)
Class A Common Stock04/22/2026S7,623D$120.27(3)994,305IFootnotes(6)(7)(8)(12)
Class A Common Stock04/22/2026S1,525D$121992,780IFootnotes(6)(7)(8)(12)
Class A Common Stock04/22/2026S42,092D$122.06950,688IFootnotes(6)(7)(8)(12)
Class A Common Stock04/22/2026S12,654D$124(4)938,034IFootnotes(6)(7)(8)(12)
Class A Common Stock04/22/2026S4,840D$124.59(5)933,194IFootnotes(6)(7)(8)(12)
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 $118.00 to $118.50, 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, and 5.
2. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $119.00 to $119.90, inclusive.
3. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $120.00 to $120.75, inclusive.
4. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $123.50 to $124.35, inclusive.
5. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $124.50 to $124.75, inclusive.
6. Magnetar Financial LLC ("Magnetar Financial") serves as the investment adviser to each of Magnetar Constellation Master Fund, Ltd, Magnetar Longhorn Fund LP, and Magnetar SC Fund Ltd, and the manager of Magnetar Lake Credit Fund LLC (collectively, the "Magnetar Funds").
7. 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.
8. 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.
9. These securities are held directly by Magnetar Constellation Master Fund, Ltd.
10. These securities are held directly by Magnetar Lake Credit Fund LLC.
11. These securities are held directly by Magnetar Longhorn Fund LP.
12. These securities are held directly by Magnetar SC Fund Ltd.
/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 LLC04/24/2026
/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 LP04/24/2026
/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman, as Administrative Manager of Supernova Management LLC04/24/2026
/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman04/24/2026
** 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

How many CoreWeave (CRWV) shares did Magnetar funds sell and at what prices?

Magnetar-related funds sold 857,367 CoreWeave Class A shares in 28 open-market trades. Weighted average sale prices were reported within ranges from $118.00 to $124.75 per share, based on detailed footnotes describing multiple executions within each price band.

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

The shares are held directly by Magnetar Constellation Master Fund, Magnetar Lake Credit Fund, Magnetar Longhorn Fund and Magnetar SC Fund. Magnetar Financial LLC and related entities are listed as ten percent owners but act as adviser or manager to these funds rather than direct holders.

Do Magnetar and David J. Snyderman claim full beneficial ownership of the CoreWeave shares?

No. The filing states that each Magnetar fund, Magnetar Financial, Magnetar Capital Partners, Supernova Management and David J. Snyderman disclaims beneficial ownership of CoreWeave common stock, except to the extent of its or his pecuniary interest in the relevant holdings.

What CoreWeave (CRWV) positions remain after the reported Magnetar sales?

Post-transaction figures in the filing show large remaining indirect holdings for several Magnetar funds, including reported positions such as 8,150,501 shares and 4,566,875 shares of CoreWeave Class A common stock, indicating that these sales represent only part of their overall exposure.

Were the CoreWeave (CRWV) sale prices in the Magnetar Form 4 single trades or averages?

The filing explains that reported prices are weighted averages. Individual trades occurred in multiple executions within ranges such as $118.00–$118.50, $119.00–$119.90, $120.00–$120.75, $123.50–$124.35 and $124.50–$124.75 per share, across the different reported transactions.