Postgame
FilingsForm 4

$44.94 million of CoreWeave shares held by Magnetar funds were sold on Oct 31, 2025

From the public record1 min read

Published Filed
Value$44.94 million, held indirectly
Shares331,324, held indirectly
Average price$135.65
FiledOct 31

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 the company's shares, showed 331,324 CoreWeave shares sold on Oct 31, 2025, for $44.94 million at an average $135.65 a share. Its footnotes said Magnetar funds held the shares directly, among them CW Opportunity 2 LP, CW Opportunity LLC and Longhorn Special Opportunities Fund LP, each advised by Magnetar Financial LLC. The form named Magnetar Financial LLC, an owner of more than 10% of CoreWeave's shares, as its first reporting owner and marked no transaction as made under a Rule 10b5-1 plan, a trading plan set up in advance. The source is the form, filed with the SEC on Oct 31, 2025 and published on the SEC's EDGAR site.1234567891011121314

How each figure was checked14 facts
  1. the side of the tradesaleOur database
  2. the shares of the sale lines331,324Our database
  3. the first trade dateOct 31, 2025Our database
  4. the value of the sale lines$44.94 millionOur database
  5. the average price of the sale lines$135.65Our database
  6. what the form calls the funds it namesMagnetar FundsFootnotes of the Form 4 filed Oct 31, 2025 ↗
  7. the fund that held the shares of some sale lines directlyCW Opportunity 2 LPFootnotes of the Form 4 filed Oct 31, 2025 ↗
  8. the fund that held the shares of some sale lines directlyCW Opportunity LLCFootnotes of the Form 4 filed Oct 31, 2025 ↗
  9. the fund that held the shares of some sale lines directlyLonghorn Special Opportunities Fund LPFootnotes of the Form 4 filed Oct 31, 2025 ↗
  10. Magnetar Financial advises these fundsCW Opportunity 2 LP, CW Opportunity LLC, Longhorn Special Opportunities Fund LPFootnotes of the Form 4 filed Oct 31, 2025 ↗
  11. the first reporting ownerMagnetar Financial LLCOur database
  12. the owner's relationship to the companyowner of more than 10% of the sharesOur database
  13. the Rule 10b5-1 checkboxnot ticked: the filing marks no transaction on the form as made under a Rule 10b5-1 planOur database
  14. the day the form was filedOct 31, 2025Our database

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The record

Issuer
CoreWeave (CIK 1769628, filed as CoreWeave, Inc.)
Form
4
Accession
0001104659-25-105078
Filed
Oct 31, 2025
Period of report
Oct 31, 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) · 1,588 Class A Common Stock at $134.15 · Oct 31, 2025 · disposed, indirectly, Footnotes · 5,535,790 held after · footnotes F1, F8, F9, F10 and F11
Line 2
S (sale) · 21,714 Class A Common Stock at $135.10 · Oct 31, 2025 · disposed, indirectly, Footnotes · 5,514,076 held after · footnotes F2, F8, F9, F10 and F11
Line 3
S (sale) · 7,572 Class A Common Stock at $136.51 · Oct 31, 2025 · disposed, indirectly, Footnotes · 5,506,504 held after · footnotes F3, F8, F9, F10 and F11
Line 4
S (sale) · 3,506 Class A Common Stock at $137.82 · Oct 31, 2025 · disposed, indirectly, Footnotes · 5,502,998 held after · footnotes F4, F8, F9, F10 and F11
Line 5
S (sale) · 2,200 Class A Common Stock at $134.01 · Oct 31, 2025 · disposed, indirectly, Footnotes · 22,243,575 held after · footnotes F5, F8, F9, F10 and F12
Line 6
S (sale) · 96,396 Class A Common Stock at $135.10 · Oct 31, 2025 · disposed, indirectly, Footnotes · 22,147,179 held after · footnotes F6, F8, F9, F10 and F12
Line 7
S (sale) · 32,136 Class A Common Stock at $136.52 · Oct 31, 2025 · disposed, indirectly, Footnotes · 22,115,043 held after · footnotes F8, F9, F10 and F12
Line 8
S (sale) · 12,743 Class A Common Stock at $137.86 · Oct 31, 2025 · disposed, indirectly, Footnotes · 22,102,300 held after · footnotes F7, F8, F9, F10 and F12
Line 9
S (sale) · 512 Class A Common Stock at $134.01 · Oct 31, 2025 · disposed, indirectly, Footnotes · 2,006,974 held after · footnotes F5, F8, F9, F10 and F13
Line 10
S (sale) · 22,314 Class A Common Stock at $135.10 · Oct 31, 2025 · disposed, indirectly, Footnotes · 1,984,660 held after · footnotes F6, F8, F9, F10 and F13
Line 11
S (sale) · 7,439 Class A Common Stock at $136.52 · Oct 31, 2025 · disposed, indirectly, Footnotes · 1,977,221 held after · footnotes F8, F9, F10 and F13
Line 12
S (sale) · 2,950 Class A Common Stock at $137.86 · Oct 31, 2025 · disposed, indirectly, Footnotes · 1,974,271 held after · footnotes F7, F8, F9, F10 and F13
Line 13
S (sale) · 288 Class A Common Stock at $134.01 · Oct 31, 2025 · disposed, indirectly, Footnotes · 1,580,281 held after · footnotes F5, F8, F9, F10 and F14
Line 14
S (sale) · 12,636 Class A Common Stock at $135.10 · Oct 31, 2025 · disposed, indirectly, Footnotes · 1,567,645 held after · footnotes F6, F8, F9, F10 and F14
Line 15
S (sale) · 4,213 Class A Common Stock at $136.52 · Oct 31, 2025 · disposed, indirectly, Footnotes · 1,563,432 held after · footnotes F8, F9, F10 and F14
Line 16
S (sale) · 1,671 Class A Common Stock at $137.86 · Oct 31, 2025 · disposed, indirectly, Footnotes · 1,561,761 held after · footnotes F7, F8, F9, F10 and F14
Line 17
S (sale) · 32 Class A Common Stock at $134.01 · Oct 31, 2025 · disposed, indirectly, Footnotes · 301,458 held after · footnotes F5, F8, F9, F10 and F15
Line 18
S (sale) · 1,305 Class A Common Stock at $135.10 · Oct 31, 2025 · disposed, indirectly, Footnotes · 300,153 held after · footnotes F6, F8, F9, F10 and F15
Line 19
S (sale) · 435 Class A Common Stock at $136.52 · Oct 31, 2025 · disposed, indirectly, Footnotes · 299,718 held after · footnotes F8, F9, F10 and F15
Line 20
S (sale) · 175 Class A Common Stock at $137.86 · Oct 31, 2025 · disposed, indirectly, Footnotes · 299,543 held after · footnotes F7, F8, F9, F10 and F15
Line 21
S (sale) · 648 Class A Common Stock at $134.01 · Oct 31, 2025 · disposed, indirectly, Footnotes · 5,043,271 held after · footnotes F5, F8, F9, F10 and F16
Line 22
S (sale) · 28,168 Class A Common Stock at $135.10 · Oct 31, 2025 · disposed, indirectly, Footnotes · 5,015,103 held after · footnotes F6, F8, F9, F10 and F16
Line 23
S (sale) · 9,390 Class A Common Stock at $136.52 · Oct 31, 2025 · disposed, indirectly, Footnotes · 5,005,713 held after · footnotes F8, F9, F10 and F16
Line 24
S (sale) · 3,724 Class A Common Stock at $137.86 · Oct 31, 2025 · disposed, indirectly, Footnotes · 5,001,989 held after · footnotes F7, F8, F9, F10 and F16
Line 25
S (sale) · 888 Class A Common Stock at $134.01 · Oct 31, 2025 · disposed, indirectly, Footnotes · 6,254,688 held after · footnotes F5, F8, F9, F10 and F17
Line 26
S (sale) · 38,674 Class A Common Stock at $135.10 · Oct 31, 2025 · disposed, indirectly, Footnotes · 6,216,014 held after · footnotes F6, F8, F9, F10 and F17
Line 27
S (sale) · 12,893 Class A Common Stock at $136.52 · Oct 31, 2025 · disposed, indirectly, Footnotes · 6,203,121 held after · footnotes F8, F9, F10 and F17
Line 28
S (sale) · 5,114 Class A Common Stock at $137.86 · Oct 31, 2025 · disposed, indirectly, Footnotes · 6,198,007 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 $133.75 to $134.53, 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 $135.00 to $135.50 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 $136.06 to $136.80, 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 $137.50 to $138.26, 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 $133.75 to $134.50, 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 $135.00 to $135.10, 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 $137.54 to $138.26, inclusive.
Footnote F8
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, 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").
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$4.19 billion sold
Magnetar Financial LLC · sold, held indirectly$3.46 billion
Brannin McBee · sold, held indirectly$186.7 million
Brian Venturo · sold, held indirectly$164.75 million
Brannin McBee · sold$132.54 million
Jack Cogen · sold, held indirectly$105.3 million
Michael Intrator · sold$38.54 million
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About CoreWeave

CoreWeave page →
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 31, 2025
  2. How we collect our data
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