Postgame
FilingsForm 4

Magnetar Financial LLC reported selling 211,835 CoreWeave shares for $25.44 million on Sep 17, 2025

From the public record1 min read

Published Filed
Value$25.44 million, held indirectly
Shares211,835, held indirectly
Average price$120.09
FiledSep 17

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.

Magnetar Financial LLC, listed as an owner of more than 10% of CoreWeave's shares, reported selling 211,835 shares for $25.44 million on Sep 17, 2025, at an average of $120.09 a share. The Form 4, the form an insider files when trading a company's shares, listed the shares as held indirectly; its footnotes said funds such as Magnetar Xing He Master Fund Ltd, to which Magnetar Financial LLC was investment adviser, held them directly. The Form 4 was filed on Sep 17, 2025 and can be read on SEC EDGAR.12345678910

How each figure was checked10 facts
  1. ownerMagnetar Financial LLCOur database
  2. relationshipowner of more than 10% of the sharesOur database
  3. shares211,835Our database
  4. value$25.44 millionOur database
  5. first dateSep 17, 2025Our database
  6. average price$120.09Our database
  7. holding9 sale lines held indirectly (Footnotes)Our database
  8. Magnetar Financial LLC is investment adviser to a fund named in the footnotesinvestment adviser to Magnetar Xing He Master Fund LtdFootnotes of the Form 4 filed Sep 17, 2025 ↗
  9. a fund holds shares of this form directlyheld directly by Magnetar Xing He Master Fund LtdFootnotes of the Form 4 filed Sep 17, 2025 ↗
  10. filed onSep 17, 2025Our database

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The record

Issuer
CoreWeave (CIK 1769628, filed as CoreWeave, Inc.)
Form
4
Accession
0001104659-25-090962
Filed
Sep 17, 2025
Period of report
Sep 17, 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) · 23,651 Class A Common Stock at $119.06 · Sep 17, 2025 · disposed, indirectly, Footnotes · 4,777,199 held after · footnotes F1, F4, F5, F6 and F7
Line 2
S (sale) · 54,533 Class A Common Stock at $119.97 · Sep 17, 2025 · disposed, indirectly, Footnotes · 4,722,666 held after · footnotes F2, F4, F5, F6 and F7
Line 3
S (sale) · 29,111 Class A Common Stock at $121.17 · Sep 17, 2025 · disposed, indirectly, Footnotes · 4,693,555 held after · footnotes F3, F4, F5, F6 and F7
Line 4
S (sale) · 19,054 Class A Common Stock at $119.06 · Sep 17, 2025 · disposed, indirectly, Footnotes · 4,249,066 held after · footnotes F1, F4, F5, F6 and F8
Line 5
S (sale) · 43,931 Class A Common Stock at $119.97 · Sep 17, 2025 · disposed, indirectly, Footnotes · 4,205,135 held after · footnotes F2, F4, F5, F6 and F8
Line 6
S (sale) · 23,449 Class A Common Stock at $121.17 · Sep 17, 2025 · disposed, indirectly, Footnotes · 4,181,686 held after · footnotes F3, F4, F5, F6 and F8
Line 7
S (sale) · 3,991 Class A Common Stock at $119.06 · Sep 17, 2025 · disposed, indirectly, Footnotes · 1,127,540 held after · footnotes F1, F4, F5, F6 and F9
Line 8
S (sale) · 9,203 Class A Common Stock at $119.97 · Sep 17, 2025 · disposed, indirectly, Footnotes · 1,118,337 held after · footnotes F2, F4, F5, F6 and F9
Line 9
S (sale) · 4,912 Class A Common Stock at $121.17 · Sep 17, 2025 · disposed, indirectly, Footnotes · 1,113,425 held after · footnotes F3, F4, F5, F6 and F9
Footnote F1
The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $118.75 to $119.50, 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 and 3.
Footnote F2
The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $119.75 to $120.51, 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 $120.95 to $121.50, inclusive.
Footnote F4
Magnetar Financial LLC ("Magnetar Financial") serves as the investment adviser to each of Magnetar Xing He Master Fund Ltd, Purpose Alternative Credit Fund - F LLC, Purpose Alternative Credit Fund - T LLC, and Longhorn Special Opportunities Fund LP (collectively, the "Magnetar Funds").
Footnote F5
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 manager of Supernova Management is David J. Snyderman, a citizen of the United States of America.
Footnote F6
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 F7
These securities are held directly by Magnetar Xing He Master Fund Ltd.
Footnote F8
These securities are held directly by Purpose Alternative Credit Fund - F LLC.
Footnote F9
These securities are held directly by Purpose Alternative Credit Fund - T LLC.
Footnote F10
These securities are held directly by Longhorn Special Opportunities Fund LP.
Open the source ↗

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

Total$871.55 million sold
Magnetar Financial LLC · sold, held indirectly$556.88 million
Jack Cogen · sold, held indirectly$105.3 million
Brannin McBee · sold, held indirectly$72.24 million
Brannin McBee · sold$48.16 million
Kristen McVeety · sold$29.68 million
Brian Venturo · sold, held indirectly$29.1 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

Open roles
294 open roles · 7 posted this week · 1 job board
Layoffs, 12 months
No WARN notices in the US states we read

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Sources

  1. SEC EDGAR, Form 4 filed Sep 17, 2025
  2. How we collect our data
CoreWeave

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