Postgame
FilingsForm 4

Magnetar funds sold 639,675 CoreWeave shares for $88.67 million on Oct 28, 2025

From the public record1 min read

Published Filed
Value$88.67 million, held indirectly
Shares639,675, held indirectly
Average price$138.61
FiledOct 29

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) that lists Magnetar Financial LLC as a reporting owner and an owner of more than 10% of CoreWeave's shares reported the sale of 639,675 shares on Oct 28, 2025, at an average of $138.61 a share, for $88.67 million. The form lists the shares as held indirectly, and its footnotes say they were held directly by funds for which Magnetar Financial served as adviser or manager. The form's Rule 10b5-1 box, which flags trades made under a pre-arranged plan, was not ticked. The filing is on the SEC's EDGAR database and was filed on Oct 29, 2025.123456789101112131415

How each figure was checked15 facts
  1. reporting owner as the form names itMagnetar Financial LLCOur database
  2. the owner's relationship to the issuerowner of more than 10% of the sharesOur database
  3. 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
  4. shares sold on the form639,675Our database
  5. day of the tradesOct 28, 2025Our database
  6. average price per share$138.61Our database
  7. value of the sales on the form$88.67 millionOur database
  8. how the sale lines are held25 sale lines held indirectly (Footnotes)Our database
  9. footnote on Magnetar Financial's role toward the Magnetar FundsMagnetar Financial: adviser to the funds this part of the footnote lists; manager of a fund; the footnote calls these funds the Magnetar FundsFootnotes of the same Form 4 ↗
  10. footnote F14: who held shares directlyheld directly by CW Opportunity 2 LPFootnotes of the same Form 4 ↗
  11. footnote F15: who held shares directlyheld directly by CW Opportunity LLCFootnotes of the same Form 4 ↗
  12. footnote F16: who held shares directlyheld directly by Longhorn Special Opportunities Fund LPFootnotes of the same Form 4 ↗
  13. footnote F17: who held shares directlyheld directly by Magnetar Alpha Star Fund LLCFootnotes of the same Form 4 ↗
  14. the Rule 10b5-1 boxnot ticked: the filing marks no transaction on the form as made under a Rule 10b5-1 planOur database
  15. day the form was filedOct 29, 2025Our database

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The record

Issuer
CoreWeave (CIK 1769628, filed as CoreWeave, Inc.)
Form
4
Accession
0001104659-25-103909
Filed
Oct 29, 2025
Period of report
Oct 28, 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) · 3,309 Class A Common Stock at $134.93 · Oct 28, 2025 · disposed, indirectly, Footnotes · 5,728,611 held after · footnotes F1, F11, F12, F13 and F14
Line 2
S (sale) · 1,780 Class A Common Stock at $136.71 · Oct 28, 2025 · disposed, indirectly, Footnotes · 5,726,831 held after · footnotes F2, F11, F12, F13 and F14
Line 3
S (sale) · 1,637 Class A Common Stock at $137.57 · Oct 28, 2025 · disposed, indirectly, Footnotes · 5,725,194 held after · footnotes F3, F11, F12, F13 and F14
Line 4
S (sale) · 74,355 Class A Common Stock at $138.56 · Oct 28, 2025 · disposed, indirectly, Footnotes · 5,650,839 held after · footnotes F4, F11, F12, F13 and F14
Line 5
S (sale) · 9,791 Class A Common Stock at $139.66 · Oct 28, 2025 · disposed, indirectly, Footnotes · 5,641,048 held after · footnotes F5, F11, F12, F13 and F14
Line 6
S (sale) · 4,884 Class A Common Stock at $140.53 · Oct 28, 2025 · disposed, indirectly, Footnotes · 5,636,164 held after · footnotes F6, F11, F12, F13 and F14
Line 7
S (sale) · 441 Class A Common Stock at $141.74 · Oct 28, 2025 · disposed, indirectly, Footnotes · 5,635,723 held after · footnotes F11, F12, F13 and F14
Line 8
S (sale) · 14,000 Class A Common Stock at $134.88 · Oct 28, 2025 · disposed, indirectly, Footnotes · 23,037,994 held after · footnotes F1, F11, F12, F13 and F15
Line 9
S (sale) · 1,650 Class A Common Stock at $136.86 · Oct 28, 2025 · disposed, indirectly, Footnotes · 23,036,344 held after · footnotes F7, F11, F12, F13 and F15
Line 10
S (sale) · 253,201 Class A Common Stock at $138.38 · Oct 28, 2025 · disposed, indirectly, Footnotes · 22,783,143 held after · footnotes F8, F11, F12, F13 and F15
Line 11
S (sale) · 93,830 Class A Common Stock at $139.18 · Oct 28, 2025 · disposed, indirectly, Footnotes · 22,689,313 held after · footnotes F9, F11, F12, F13 and F15
Line 12
S (sale) · 34,165 Class A Common Stock at $140.21 · Oct 28, 2025 · disposed, indirectly, Footnotes · 22,655,148 held after · footnotes F10, F11, F12, F13 and F15
Line 13
S (sale) · 2,000 Class A Common Stock at $141.74 · Oct 28, 2025 · disposed, indirectly, Footnotes · 22,653,148 held after · footnotes F11, F12, F13 and F15
Line 14
S (sale) · 3,243 Class A Common Stock at $134.88 · Oct 28, 2025 · disposed, indirectly, Footnotes · 2,190,873 held after · footnotes F1, F11, F12, F13 and F16
Line 15
S (sale) · 384 Class A Common Stock at $136.86 · Oct 28, 2025 · disposed, indirectly, Footnotes · 2,190,489 held after · footnotes F7, F11, F12, F13 and F16
Line 16
S (sale) · 58,612 Class A Common Stock at $138.38 · Oct 28, 2025 · disposed, indirectly, Footnotes · 2,131,877 held after · footnotes F8, F11, F12, F13 and F16
Line 17
S (sale) · 21,720 Class A Common Stock at $139.18 · Oct 28, 2025 · disposed, indirectly, Footnotes · 2,110,157 held after · footnotes F9, F11, F12, F13 and F16
Line 18
S (sale) · 7,909 Class A Common Stock at $140.21 · Oct 28, 2025 · disposed, indirectly, Footnotes · 2,102,248 held after · footnotes F10, F11, F12, F13 and F16
Line 19
S (sale) · 463 Class A Common Stock at $141.74 · Oct 28, 2025 · disposed, indirectly, Footnotes · 2,101,785 held after · footnotes F11, F12, F13 and F16
Line 20
S (sale) · 1,836 Class A Common Stock at $134.88 · Oct 28, 2025 · disposed, indirectly, Footnotes · 1,684,446 held after · footnotes F1, F11, F12, F13 and F17
Line 21
S (sale) · 216 Class A Common Stock at $136.86 · Oct 28, 2025 · disposed, indirectly, Footnotes · 1,684,230 held after · footnotes F7, F11, F12, F13 and F17
Line 22
S (sale) · 33,196 Class A Common Stock at $138.38 · Oct 28, 2025 · disposed, indirectly, Footnotes · 1,651,034 held after · footnotes F8, F11, F12, F13 and F17
Line 23
S (sale) · 12,308 Class A Common Stock at $139.18 · Oct 28, 2025 · disposed, indirectly, Footnotes · 1,638,726 held after · footnotes F9, F11, F12, F13 and F17
Line 24
S (sale) · 4,482 Class A Common Stock at $140.21 · Oct 28, 2025 · disposed, indirectly, Footnotes · 1,634,244 held after · footnotes F10, F11, F12, F13 and F17
Line 25
S (sale) · 263 Class A Common Stock at $141.74 · Oct 28, 2025 · disposed, indirectly, Footnotes · 1,633,981 held after · footnotes F11, F12, F13 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 $134.83 to $135.80, 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, 7, 8, 9, and 10.
Footnote F2
The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $136.01 to $137.00, 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 $137.04 to $138.01, 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 $138.35 to $139.33, 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 $139.35 to $140.25, 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 $140.45 to $140.59, 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 $136.40 to $137.09, inclusive.
Footnote F8
The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $137.40 to $138.38, inclusive.
Footnote F9
The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $138.67 to $139.59, inclusive.
Footnote F10
The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $139.70 to $140.59, inclusive.
Footnote F11
Magnetar Financial LLC ("Magnetar Financial") serves as the investment adviser to each of CW Opportunity LLC, CW Opportunity 2 LP, and Longhorn Special Opportunities Fund LP and the manager of Magnetar Alpha Star Fund LLC (collectively, the "Magnetar Funds").
Footnote F12
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 F13
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 F14
These securities are held directly by CW Opportunity 2 LP.
Footnote F15
These securities are held directly by CW Opportunity LLC.
Footnote F16
These securities are held directly by Longhorn Special Opportunities Fund LP.
Footnote F17
These securities are held directly by Magnetar Alpha Star Fund LLC.
Open the source ↗

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

Total$4.05 billion sold
Magnetar Financial LLC · sold, held indirectly$3.36 billion
Brannin McBee · sold, held indirectly$186.7 million
Brannin McBee · sold$132.54 million
Brian Venturo · sold, held indirectly$126 million
Jack Cogen · sold, held indirectly$105.3 million
Michael Intrator · sold$38.54 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 29, 2025
  2. How we collect our data
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