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  4. [Form 4] CoreWeave, Inc. Insider Trading Activity

CoreWeave (CRWV) Magnetar-managed funds sell 307,131 Class A shares in August trades

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

Rhea-AI Filing Summary

CoreWeave, Inc. reported that entities associated with Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC and David J. Snyderman, each a ten percent owner, executed a series of open-market sales of Class A Common Stock on August 14, 2026. Across 24 non-derivative transactions, Magnetar-managed funds sold a total of 307,131 shares at per-share prices including weighted average prices of $108.48 for trades within a $108.00–$108.72 range, as well as individual trades at $109.99 and $110.00. The shares were held indirectly by various Magnetar Funds identified in the footnotes, and each Magnetar entity and Mr. Snyderman disclaim beneficial ownership except to the extent of their pecuniary interest.

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Insider Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC, Snyderman David J.
Role 10% Owner | 10% Owner | 10% Owner | 10% Owner
Sold 307,131 shs ($33.40M)
Type Security Shares Price Value
Sale Class A Common Stock F1, F2, F3, F4, F5 24,708 $108.48 $2.68M
Sale Class A Common Stock F2, F3, F4, F5 4,912 $109.99 $540K
Sale Class A Common Stock F2, F3, F4, F5 552 $110.00 $61K
Sale Class A Common Stock F1, F2, F3, F4, F6 24,743 $108.48 $2.68M
Sale Class A Common Stock F2, F3, F4, F6 4,919 $109.99 $541K
Sale Class A Common Stock F2, F3, F4, F6 553 $110.00 $61K
Sale Class A Common Stock F1, F2, F3, F4, F7 84,544 $108.48 $9.17M
Sale Class A Common Stock F2, F3, F4, F7 16,807 $109.99 $1.85M
Sale Class A Common Stock F2, F3, F4, F7 1,887 $110.00 $208K
Sale Class A Common Stock F1, F2, F3, F4, F8 1,146 $108.48 $124K
Sale Class A Common Stock F2, F3, F4, F8 228 $109.99 $25K
Sale Class A Common Stock F2, F3, F4, F8 26 $110.00 $3K
Sale Class A Common Stock F1, F2, F3, F4, F9 33,922 $108.48 $3.68M
Sale Class A Common Stock F2, F3, F4, F9 6,743 $109.99 $742K
Sale Class A Common Stock F2, F3, F4, F9 758 $110.00 $83K
Sale Class A Common Stock F1, F2, F3, F4, F10 36,168 $108.48 $3.92M
Sale Class A Common Stock F2, F3, F4, F10 7,190 $109.99 $791K
Sale Class A Common Stock F2, F3, F4, F10 808 $110.00 $89K
Sale Class A Common Stock F1, F2, F3, F4, F11 3,763 $108.48 $408K
Sale Class A Common Stock F2, F3, F4, F11 748 $109.99 $82K
Sale Class A Common Stock F2, F3, F4, F11 84 $110.00 $9K
Sale Class A Common Stock F1, F2, F3, F4, F12 42,519 $108.48 $4.61M
Sale Class A Common Stock F2, F3, F4, F12 8,453 $109.99 $930K
Sale Class A Common Stock F2, F3, F4, F12 950 $110.00 $105K
holding Class A Common Stock F2, F3, F4, F13 -- -- --
holding Class A Common Stock F2, F3, F4, F14 -- -- --
holding Class A Common Stock F2, F3, F4, F15 -- -- --
holding Class A Common Stock F2, F3, F4, F16 -- -- --
holding Class A Common Stock F2, F3, F4, F17 -- -- --
Holdings After Transaction: Class A Common Stock — 13,327,765 shares (Indirect, Footnotes)
Footnotes (17)
  1. F1. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $108.00 to $108.72, 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.
  2. F2. Magnetar Financial LLC ("Magnetar Financial") serves as the investment adviser to each of CW Opportunity 2 LP, CW Opportunity LLC, Longhorn Special Opportunities Fund LP, 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").
  3. F3. 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.
  4. F4. 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.
  5. F5. These securities are held directly by CW Opportunity 2 LP.
  6. F6. These securities are held directly by CW Opportunity LLC.
  7. F7. These securities are held directly by Longhorn Special Opportunities Fund LP.
  8. F8. These securities are held directly by Magnetar Capital Master Fund, Ltd.
  9. F9. These securities are held directly by Magnetar Constellation Master Fund, Ltd.
  10. F10. These securities are held directly by Magnetar Lake Credit Fund LLC.
  11. F11. These securities are held directly by Magnetar Structured Credit Fund, LP DBA Magnetar Constellation Onshore Fund. They are not separate legal entities.
  12. F12. These securities are held directly by Purpose Alternative Credit Fund - T LLC.
  13. F13. These securities are held directly by Magnetar Alpha Star Fund LLC.
  14. F14. These securities are held directly by Magnetar Longhorn Fund LP.
  15. F15. These securities are held directly by Magnetar SC Fund Ltd.
  16. F16. These securities are held directly by Magnetar Xing He Master Fund Ltd.
  17. F17. These securities are held directly by Purpose Alternative Credit Fund - F LLC.
Shares sold 307,131 shares Total Class A Common Stock sold across 24 non-derivative transactions on August 14, 2026
Number of sale transactions 24 transactions Non-derivative open-market or private sales of Class A Common Stock
Weighted average sale price $108.48 per share Weighted average for certain sales executed between $108.00 and $108.72
Reported price range $108.00–$110.00 per share Approximate range of per-share prices across the reported CoreWeave stock sales
Holding entries 5 entries Indirect holdings referenced with footnotes but without share counts in this report
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
"disclaims beneficial ownership ... except to the extent of its or his pecuniary interest"
indirect ownership financial
"These securities are held directly by CW Opportunity 2 LP."
ten percent owner financial
"each of the reporting persons is indicated as a ten_percent_owner"

FAQ

What did Magnetar report in its Form 4 for CoreWeave (CRWV)?
Magnetar-related reporting persons disclosed multiple open-market sales of CoreWeave (CRWV) Class A Common Stock on August 14, 2026. The transactions were executed through various Magnetar-managed funds that indirectly hold the shares, rather than by the reporting individuals and entities directly.

How many CoreWeave (CRWV) shares were sold in this Magnetar filing?
The Form 4 reports open-market sales totaling 307,131 shares of CoreWeave (CRWV) Class A Common Stock. These shares were sold across 24 separate transactions by multiple Magnetar-managed funds, as detailed in the non-derivative transaction table and related ownership footnotes.

What price range did the Magnetar funds receive for CoreWeave (CRWV) shares?
Reported sale prices for CoreWeave (CRWV) Class A shares range from $108.00 to $110.00 per share. Several transactions used a weighted average price of $108.48 for trades executed between $108.00 and $108.72, while others were reported at $109.99 and $110.00.

Were the CoreWeave (CRWV) shares sold directly by Magnetar or by its funds?
The shares were held and sold indirectly through various Magnetar-managed funds, such as CW Opportunity 2 LP and other named vehicles. Footnotes specify which fund held each block, and the Magnetar entities and David J. Snyderman disclaim beneficial ownership except for their pecuniary interests.

Was Magnetar’s CoreWeave (CRWV) selling under a Rule 10b5-1 plan?
The filing’s Rule 10b5-1 checkbox is not marked as using a plan, and the footnotes do not reference any 10b5-1 trading arrangement. The reported CoreWeave (CRWV) sales are therefore presented without any stated pre-arranged trading plan context in this disclosure.

What does it mean that Magnetar disclaims beneficial ownership of CoreWeave (CRWV) shares?
The disclosure states that Magnetar entities and David J. Snyderman disclaim beneficial ownership of the CoreWeave (CRWV) shares held by the funds, except for their pecuniary interest. This means the economic exposure is acknowledged, while voting and investment power may reside with the individual fund entities.

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Form 4 Insider Transactions: What Each Field Means →
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)
08/14/2026		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 Stock08/14/2026S24,708D$108.48(1)3,309,861IFootnotes(2)(3)(4)(5)
Class A Common Stock08/14/2026S4,912D$109.993,304,949IFootnotes(2)(3)(4)(5)
Class A Common Stock08/14/2026S552D$1103,304,397IFootnotes(2)(3)(4)(5)
Class A Common Stock08/14/2026S24,743D$108.48(1)3,713,016IFootnotes(2)(3)(4)(6)
Class A Common Stock08/14/2026S4,919D$109.993,708,097IFootnotes(2)(3)(4)(6)
Class A Common Stock08/14/2026S553D$1103,707,544IFootnotes(2)(3)(4)(6)
Class A Common Stock08/14/2026S84,544D$108.48(1)16,312,272IFootnotes(2)(3)(4)(7)
Class A Common Stock08/14/2026S16,807D$109.9916,295,465IFootnotes(2)(3)(4)(7)
Class A Common Stock08/14/2026S1,887D$11016,293,578IFootnotes(2)(3)(4)(7)
Class A Common Stock08/14/2026S1,146D$108.48(1)221,064IFootnotes(2)(3)(4)(8)
Class A Common Stock08/14/2026S228D$109.99220,836IFootnotes(2)(3)(4)(8)
Class A Common Stock08/14/2026S26D$110220,810IFootnotes(2)(3)(4)(8)
Class A Common Stock08/14/2026S33,922D$108.48(1)3,994,508IFootnotes(2)(3)(4)(9)
Class A Common Stock08/14/2026S6,743D$109.993,987,765IFootnotes(2)(3)(4)(9)
Class A Common Stock08/14/2026S758D$1103,987,007IFootnotes(2)(3)(4)(9)
Class A Common Stock08/14/2026S36,168D$108.48(1)6,249,941IFootnotes(2)(3)(4)(10)
Class A Common Stock08/14/2026S7,190D$109.996,242,751IFootnotes(2)(3)(4)(10)
Class A Common Stock08/14/2026S808D$1106,241,943IFootnotes(2)(3)(4)(10)
Class A Common Stock08/14/2026S3,763D$108.48(1)604,454IFootnotes(2)(3)(4)(11)
Class A Common Stock08/14/2026S748D$109.99603,706IFootnotes(2)(3)(4)(11)
Class A Common Stock08/14/2026S84D$110603,622IFootnotes(2)(3)(4)(11)
Class A Common Stock08/14/2026S42,519D$108.48(1)1,338,133IFootnotes(2)(3)(4)(12)
Class A Common Stock08/14/2026S8,453D$109.991,329,680IFootnotes(2)(3)(4)(12)
Class A Common Stock08/14/2026S950D$1101,328,730IFootnotes(2)(3)(4)(12)
Class A Common Stock932,981IFootnotes(2)(3)(4)(13)
Class A Common Stock6,622,946IFootnotes(2)(3)(4)(14)
Class A Common Stock768,748IFootnotes(2)(3)(4)(15)
Class A Common Stock1,891,986IFootnotes(2)(3)(4)(16)
Class A Common Stock1,782,374IFootnotes(2)(3)(4)(17)
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 $108.00 to $108.72, 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.
2. Magnetar Financial LLC ("Magnetar Financial") serves as the investment adviser to each of CW Opportunity 2 LP, CW Opportunity LLC, Longhorn Special Opportunities Fund LP, 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").
3. 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.
4. 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.
5. These securities are held directly by CW Opportunity 2 LP.
6. These securities are held directly by CW Opportunity LLC.
7. These securities are held directly by Longhorn Special Opportunities Fund LP.
8. These securities are held directly by Magnetar Capital Master Fund, Ltd.
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 Structured Credit Fund, LP DBA Magnetar Constellation Onshore Fund. They are not separate legal entities.
12. These securities are held directly by Purpose Alternative Credit Fund - T LLC.
13. These securities are held directly by Magnetar Alpha Star Fund LLC.
14. These securities are held directly by Magnetar Longhorn Fund LP.
15. These securities are held directly by Magnetar SC Fund Ltd.
16. These securities are held directly by Magnetar Xing He Master Fund Ltd.
17. These securities are held directly by Purpose Alternative Credit Fund - F 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 LLC08/14/2026
/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 LP08/14/2026
/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman, as Administrative Manager of Supernova Management LLC08/14/2026
/s/ Hayley A. Stein, Attorney-in-Fact for David J. Snyderman08/14/2026
** 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