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FilingsForm 4

Form 4 for Magnetar Financial LLC reported $128.07 million of CoreWeave shares sold on Oct 9, 2025

From the public record1 min read

Published Filed
Value$128.07 million, held indirectly
Shares907,277, held indirectly
Average price$141.16
FiledOct 10

Written by Claude Sonnet 5.5, an AI model, from public records. Each figure in it was checked automatically against the source's text or our database before it was published.

A Form 4 (the form an insider files when trading a company's shares) listing Magnetar Financial LLC first, as an owner of more than 10% of CoreWeave's shares, reported the sale of 907,277 shares on Oct 9, 2025, for $128.07 million at an average of $141.16 a share. The form also named Magnetar Capital Partners LP, Supernova Management LLC and David J. Snyderman as reporting owners, listed the shares as held indirectly, and said in its footnotes that funds held them directly, among them CW Opportunity 2 LP and CW Opportunity LLC. The source is the Form 4 filed with the SEC on Oct 10, 2025.12345678910111213

How each figure was checked13 facts
  1. the reporting owner the form lists firstMagnetar Financial LLCOur database
  2. the owner's relationship to the companyowner of more than 10% of the sharesOur database
  3. the side of the tradesaleOur database
  4. shares sold907,277Our database
  5. first day of the tradesOct 9, 2025Our database
  6. last day of the tradesOct 9, 2025Our database
  7. value of the sale$128.07 millionOur database
  8. average price per share$141.16Our database
  9. every reporting owner of the formMagnetar Financial LLC (owner of more than 10% of the shares); Magnetar Capital Partners LP (owner of more than 10% of the shares); Supernova Management LLC (owner of more than 10% of the shares); David J. Snyderman (filed as Snyderman David J.; owner of more than 10% of the shares)Our database
  10. how the sold shares are held28 sale lines held indirectly (Footnotes)Our database
  11. a footnote naming a holder of the sharesheld directly by CW Opportunity 2 LPFootnotes of the Form 4 filed Oct 10, 2025 ↗
  12. a second footnote naming a holder of the sharesheld directly by CW Opportunity LLCFootnotes of the Form 4 filed Oct 10, 2025 ↗
  13. the day the form was filedOct 10, 2025Our database

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The record

Issuer
CoreWeave (CIK 1769628, filed as CoreWeave, Inc.)
Form
4
Accession
0001104659-25-098834
Filed
Oct 10, 2025
Period of report
Oct 9, 2025
Reporting owner 1
Magnetar Financial LLC (CIK 1352851)
Relationship
owner of more than 10% of the shares
Reporting owner 2
Magnetar Capital Partners LP (CIK 1353085)
Relationship
owner of more than 10% of the shares
Reporting owner 3
Supernova Management LLC (CIK 1368026)
Relationship
owner of more than 10% of the shares
Reporting owner 4
David J. Snyderman (CIK 1953511, filed as Snyderman David J.)
Relationship
owner of more than 10% of the shares
Rule 10b5-1 checkbox
Not ticked
Line 1
S (sale) · 4,509 Class A Common Stock at $139.50 · Oct 9, 2025 · disposed, indirectly, Footnotes · 6,162,736 held after · footnotes F1, F8, F9, F10 and F11
Line 2
S (sale) · 61,148 Class A Common Stock at $140.88 · Oct 9, 2025 · disposed, indirectly, Footnotes · 6,101,588 held after · footnotes F2, F8, F9, F10 and F11
Line 3
S (sale) · 8,293 Class A Common Stock at $141.53 · Oct 9, 2025 · disposed, indirectly, Footnotes · 6,093,295 held after · footnotes F3, F8, F9, F10 and F11
Line 4
S (sale) · 11,682 Class A Common Stock at $142.88 · Oct 9, 2025 · disposed, indirectly, Footnotes · 6,081,613 held after · footnotes F4, F8, F9, F10 and F11
Line 5
S (sale) · 14,268 Class A Common Stock at $139.48 · Oct 9, 2025 · disposed, indirectly, Footnotes · 24,823,198 held after · footnotes F5, F8, F9, F10 and F12
Line 6
S (sale) · 258,125 Class A Common Stock at $140.91 · Oct 9, 2025 · disposed, indirectly, Footnotes · 24,565,073 held after · footnotes F6, F8, F9, F10 and F12
Line 7
S (sale) · 34,499 Class A Common Stock at $141.52 · Oct 9, 2025 · disposed, indirectly, Footnotes · 24,530,574 held after · footnotes F3, F8, F9, F10 and F12
Line 8
S (sale) · 44,119 Class A Common Stock at $142.89 · Oct 9, 2025 · disposed, indirectly, Footnotes · 24,486,455 held after · footnotes F7, F8, F9, F10 and F12
Line 9
S (sale) · 7,170 Class A Common Stock at $139.48 · Oct 9, 2025 · disposed, indirectly, Footnotes · 3,022,176 held after · footnotes F5, F8, F9, F10 and F13
Line 10
S (sale) · 129,800 Class A Common Stock at $140.91 · Oct 9, 2025 · disposed, indirectly, Footnotes · 2,892,376 held after · footnotes F6, F8, F9, F10 and F13
Line 11
S (sale) · 17,351 Class A Common Stock at $141.52 · Oct 9, 2025 · disposed, indirectly, Footnotes · 2,875,025 held after · footnotes F3, F8, F9, F10 and F13
Line 12
S (sale) · 22,187 Class A Common Stock at $142.89 · Oct 9, 2025 · disposed, indirectly, Footnotes · 2,852,838 held after · footnotes F7, F8, F9, F10 and F13
Line 13
S (sale) · 1,865 Class A Common Stock at $139.48 · Oct 9, 2025 · disposed, indirectly, Footnotes · 1,918,485 held after · footnotes F5, F8, F9, F10 and F14
Line 14
S (sale) · 33,817 Class A Common Stock at $140.91 · Oct 9, 2025 · disposed, indirectly, Footnotes · 1,884,668 held after · footnotes F6, F8, F9, F10 and F14
Line 15
S (sale) · 4,523 Class A Common Stock at $141.52 · Oct 9, 2025 · disposed, indirectly, Footnotes · 1,880,145 held after · footnotes F3, F8, F9, F10 and F14
Line 16
S (sale) · 5,786 Class A Common Stock at $142.89 · Oct 9, 2025 · disposed, indirectly, Footnotes · 1,874,359 held after · footnotes F7, F8, F9, F10 and F14
Line 17
S (sale) · 193 Class A Common Stock at $139.48 · Oct 9, 2025 · disposed, indirectly, Footnotes · 336,470 held after · footnotes F5, F8, F9, F10 and F15
Line 18
S (sale) · 3,494 Class A Common Stock at $140.91 · Oct 9, 2025 · disposed, indirectly, Footnotes · 332,976 held after · footnotes F6, F8, F9, F10 and F15
Line 19
S (sale) · 468 Class A Common Stock at $141.52 · Oct 9, 2025 · disposed, indirectly, Footnotes · 332,508 held after · footnotes F3, F8, F9, F10 and F15
Line 20
S (sale) · 600 Class A Common Stock at $142.89 · Oct 9, 2025 · disposed, indirectly, Footnotes · 331,908 held after · footnotes F7, F8, F9, F10 and F15
Line 21
S (sale) · 4,165 Class A Common Stock at $139.48 · Oct 9, 2025 · disposed, indirectly, Footnotes · 5,797,221 held after · footnotes F5, F8, F9, F10 and F16
Line 22
S (sale) · 75,415 Class A Common Stock at $140.91 · Oct 9, 2025 · disposed, indirectly, Footnotes · 5,721,806 held after · footnotes F6, F8, F9, F10 and F16
Line 23
S (sale) · 10,083 Class A Common Stock at $141.52 · Oct 9, 2025 · disposed, indirectly, Footnotes · 5,711,723 held after · footnotes F3, F8, F9, F10 and F16
Line 24
S (sale) · 12,896 Class A Common Stock at $142.89 · Oct 9, 2025 · disposed, indirectly, Footnotes · 5,698,827 held after · footnotes F7, F8, F9, F10 and F16
Line 25
S (sale) · 5,722 Class A Common Stock at $139.48 · Oct 9, 2025 · disposed, indirectly, Footnotes · 7,289,722 held after · footnotes F5, F8, F9, F10 and F17
Line 26
S (sale) · 103,552 Class A Common Stock at $140.91 · Oct 9, 2025 · disposed, indirectly, Footnotes · 7,186,170 held after · footnotes F6, F8, F9, F10 and F17
Line 27
S (sale) · 13,843 Class A Common Stock at $141.52 · Oct 9, 2025 · disposed, indirectly, Footnotes · 7,172,327 held after · footnotes F3, F8, F9, F10 and F17
Line 28
S (sale) · 17,704 Class A Common Stock at $142.89 · Oct 9, 2025 · disposed, indirectly, Footnotes · 7,154,623 held after · footnotes F7, F8, F9, F10 and F17
Footnote F1
The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $139.03 to $140.00, 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, 6 and 7.
Footnote F2
The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $140.10 to $141.04, inclusive.
Footnote F3
The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $141.17 to $142.00, inclusive.
Footnote F4
The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $142.17 to $143.13, inclusive.
Footnote F5
The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $139.15 to $140.00, inclusive.
Footnote F6
The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $140.15 to $141.04, inclusive.
Footnote F7
The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $142.50 to $143.13, inclusive.
Footnote F8
Magnetar Financial LLC ("Magnetar Financial") serves as the investment adviser to each of CW Opportunity LLC, CW Opportunity 2 LP, Magnetar Capital Master Fund, Ltd, Magnetar Constellation Master Fund, Ltd and Longhorn Special Opportunities Fund LP, and the manager of Magnetar Alpha Star Fund LLC and Magnetar Lake Credit Fund LLC (collectively, the "Magnetar Funds").
Footnote F9
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.
Footnote F10
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.
Footnote F11
These securities are held directly by CW Opportunity 2 LP.
Footnote F12
These securities are held directly by CW Opportunity LLC.
Footnote F13
These securities are held directly by Longhorn Special Opportunities Fund LP.
Footnote F14
These securities are held directly by Magnetar Alpha Star Fund LLC.
Footnote F15
These securities are held directly by Magnetar Capital Master Fund, Ltd.
Footnote F16
These securities are held directly by Magnetar Constellation Master Fund, Ltd.
Footnote F17
These securities are held directly by Magnetar Lake Credit Fund LLC.
Open the source ↗

Insider purchases and sales of CoreWeave shares, since Aug 29, 2025

Total$2.96 billion sold
Magnetar Financial LLC · sold, held indirectly$2.3 billion
Brannin McBee · sold, held indirectly$186.7 million
Brannin McBee · sold$132.54 million
Jack Cogen · sold, held indirectly$105.3 million
Brian Venturo · sold, held indirectly$104.61 million
Michael Intrator · sold$34.69 million
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About CoreWeave

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Revenue$5.13 billionYear to Dec 31, 2025 · +167.94% year over year
Operating income−$46 millionYear to Dec 31, 2025 · −114.2% year over year
Net income−$1.17 billionYear to Dec 31, 2025 · −35.23% year over year

Source: SEC EDGAR XBRL financial data · filed Aug 12, 2026

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Sources

  1. SEC EDGAR, Form 4 filed Oct 10, 2025
  2. How we collect our data
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