STOCK TITAN

Magnetar funds trim CoreWeave (CRWV) stake with 620,672-share open-market sale

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

Rhea-AI Filing Summary

CoreWeave, Inc. large shareholder activity: On April 22, 2026, investment funds advised by Magnetar Financial LLC reported open-market sales totaling 620,672 shares of CoreWeave Class A Common Stock. The reported weighted average sale prices were within ranges from $118.00 to $124.75 per share.

The shares are held indirectly through multiple Magnetar-managed funds, including Magnetar Structured Credit Fund LP, Magnetar Xing He Master Fund Ltd, Purpose Alternative Credit Fund – F LLC, Purpose Alternative Credit Fund – T LLC and Longhorn Special Opportunities Fund LP. Magnetar Financial, Magnetar Capital Partners LP, Supernova Management LLC and David J. Snyderman each disclaim beneficial ownership beyond any 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 620,672 shs ($75.81M)
Type Security Shares Price Value
Sale Class A Common Stock 4,018 $118.31 $475K
Sale Class A Common Stock 17,219 $119.48 $2.06M
Sale Class A Common Stock 28,697 $120.27 $3.45M
Sale Class A Common Stock 5,739 $121.00 $694K
Sale Class A Common Stock 158,460 $122.06 $19.34M
Sale Class A Common Stock 47,637 $124.00 $5.91M
Sale Class A Common Stock 18,219 $124.59 $2.27M
Sale Class A Common Stock 2,476 $118.31 $293K
Sale Class A Common Stock 10,613 $119.48 $1.27M
Sale Class A Common Stock 17,687 $120.27 $2.13M
Sale Class A Common Stock 3,537 $121.00 $428K
Sale Class A Common Stock 97,658 $122.06 $11.92M
Sale Class A Common Stock 29,360 $124.00 $3.64M
Sale Class A Common Stock 11,230 $124.59 $1.40M
Sale Class A Common Stock 1,995 $118.31 $236K
Sale Class A Common Stock 8,549 $119.48 $1.02M
Sale Class A Common Stock 14,247 $120.27 $1.71M
Sale Class A Common Stock 2,849 $121.00 $345K
Sale Class A Common Stock 78,670 $122.06 $9.60M
Sale Class A Common Stock 23,650 $124.00 $2.93M
Sale Class A Common Stock 9,046 $124.59 $1.13M
Sale Class A Common Stock 418 $118.31 $49K
Sale Class A Common Stock 1,789 $119.48 $214K
Sale Class A Common Stock 2,983 $120.27 $359K
Sale Class A Common Stock 597 $121.00 $72K
Sale Class A Common Stock 16,483 $122.06 $2.01M
Sale Class A Common Stock 4,952 $124.00 $614K
Sale Class A Common Stock 1,894 $124.59 $236K
holding Class A Common Stock -- -- --
Holdings After Transaction: Class A Common Stock — 8,090,054 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 Longhorn Special Opportunities Fund LP, Magnetar Xing He Master Fund Ltd, Purpose Alternative Credit Fund - F LLC, and Purpose Alternative Credit Fund - T LLC, and the general partner of Magnetar Structured Credit Fund, LP DBA Magnetar Constellation Onshore Fund (They are not separate legal entities), (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 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. These securities are held directly by Longhorn Special Opportunities Fund LP.
Shares sold 620,672 shares Open-market sales on April 22, 2026 by Magnetar-advised funds
Price range (low) $118.00/share Lower end of weighted-average price range disclosed in footnotes
Price range (high) $124.75/share Upper end of weighted-average price range disclosed in footnotes
Sell transactions 28 separate sales Non-derivative open-market sales of Class A Common Stock
Net direction Net sell of 620,672 shares Form 4 transaction summary net-buy/sell direction
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 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."
investment adviser financial
"Magnetar Financial LLC serves as the investment adviser to each of"
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 regulatory
"is_ten_percent_owner": 1"
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 Stock04/22/2026S4,018D$118.31(1)8,090,054IFootnotes(6)(7)(8)(9)
Class A Common Stock04/22/2026S17,219D$119.48(2)8,072,835IFootnotes(6)(7)(8)(9)
Class A Common Stock04/22/2026S28,697D$120.27(3)8,044,138IFootnotes(6)(7)(8)(9)
Class A Common Stock04/22/2026S5,739D$1218,038,399IFootnotes(6)(7)(8)(9)
Class A Common Stock04/22/2026S158,460D$122.067,879,939IFootnotes(6)(7)(8)(9)
Class A Common Stock04/22/2026S47,637D$124(4)7,832,302IFootnotes(6)(7)(8)(9)
Class A Common Stock04/22/2026S18,219D$124.59(5)7,814,083IFootnotes(6)(7)(8)(9)
Class A Common Stock04/22/2026S2,476D$118.31(1)2,763,174IFootnotes(6)(7)(8)(10)
Class A Common Stock04/22/2026S10,613D$119.48(2)2,752,561IFootnotes(6)(7)(8)(10)
Class A Common Stock04/22/2026S17,687D$120.27(3)2,734,874IFootnotes(6)(7)(8)(10)
Class A Common Stock04/22/2026S3,537D$1212,731,337IFootnotes(6)(7)(8)(10)
Class A Common Stock04/22/2026S97,658D$122.062,633,679IFootnotes(6)(7)(8)(10)
Class A Common Stock04/22/2026S29,360D$124(4)2,604,319IFootnotes(6)(7)(8)(10)
Class A Common Stock04/22/2026S11,230D$124.59(5)2,593,089IFootnotes(6)(7)(8)(10)
Class A Common Stock04/22/2026S1,995D$118.31(1)2,677,983IFootnotes(6)(7)(8)(11)
Class A Common Stock04/22/2026S8,549D$119.48(2)2,669,434IFootnotes(6)(7)(8)(11)
Class A Common Stock04/22/2026S14,247D$120.27(3)2,655,187IFootnotes(6)(7)(8)(11)
Class A Common Stock04/22/2026S2,849D$1212,652,338IFootnotes(6)(7)(8)(11)
Class A Common Stock04/22/2026S78,670D$122.062,573,668IFootnotes(6)(7)(8)(11)
Class A Common Stock04/22/2026S23,650D$124(4)2,550,018IFootnotes(6)(7)(8)(11)
Class A Common Stock04/22/2026S9,046D$124.59(5)2,540,972IFootnotes(6)(7)(8)(11)
Class A Common Stock04/22/2026S418D$118.31(1)795,864IFootnotes(6)(7)(8)(12)
Class A Common Stock04/22/2026S1,789D$119.48(2)794,075IFootnotes(6)(7)(8)(12)
Class A Common Stock04/22/2026S2,983D$120.27(3)791,092IFootnotes(6)(7)(8)(12)
Class A Common Stock04/22/2026S597D$121790,495IFootnotes(6)(7)(8)(12)
Class A Common Stock04/22/2026S16,483D$122.06774,012IFootnotes(6)(7)(8)(12)
Class A Common Stock04/22/2026S4,952D$124(4)769,060IFootnotes(6)(7)(8)(12)
Class A Common Stock04/22/2026S1,894D$124.59(5)767,166IFootnotes(6)(7)(8)(12)
Class A Common Stock1,973,782IFootnotes(6)(7)(8)(13)
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 Longhorn Special Opportunities Fund LP, Magnetar Xing He Master Fund Ltd, Purpose Alternative Credit Fund - F LLC, and Purpose Alternative Credit Fund - T LLC, and the general partner of Magnetar Structured Credit Fund, LP DBA Magnetar Constellation Onshore Fund (They are not separate legal entities), (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 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.
13. These securities are held directly by Longhorn Special Opportunities Fund LP.
/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

At what prices did the CoreWeave (CRWV) shares sell in the Magnetar Form 4?

The reported sales used weighted average prices, with individual trades occurring in ranges from $118.00 to $124.75 per share. Several footnotes explain that the shares were sold in multiple transactions within these price bands.

Who actually holds the CoreWeave (CRWV) shares mentioned in the Magnetar filing?

The shares are held directly by several Magnetar-managed funds, including Magnetar Structured Credit Fund LP, Magnetar Xing He Master Fund Ltd, Purpose Alternative Credit Fund vehicles, and Longhorn Special Opportunities Fund LP, rather than by the reporting entities personally.

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

No. The Form 4 states that each Magnetar fund and entity, and David J. Snyderman, disclaims beneficial ownership of the CoreWeave common stock, except to the extent of its or his pecuniary interest in those securities.