Postgame
FilingsForm 4

Funds tied to Magnetar Financial sold 1,004,073 CoreWeave shares for $144.1 million on Oct 16, 2025

From the public record1 min read

Published Filed
Value$144.1 million, held indirectly
Shares1,004,073, held indirectly
Average price$143.51
FiledOct 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.

On Oct 17, 2025, Magnetar Financial LLC, which the form lists as an owner of more than 10% of CoreWeave's shares, filed a Form 4 (the form insiders file when they trade their company's shares) reporting sales of 1,004,073 CoreWeave shares made on Oct 16, 2025. The sales averaged $143.51 a share, for $144.1 million in all. The form's footnotes say the shares sold were held directly by CW Opportunity 2 LP, CW Opportunity LLC and Longhorn Special Opportunities Fund LP, funds that Magnetar Financial LLC advises. The Form 4 can be opened on the SEC's EDGAR site.123456789101112

How each figure was checked12 facts
  1. the reporting owner as filedMagnetar Financial LLCOur database
  2. the owner's relationship to the companyowner of more than 10% of the sharesOur database
  3. shares sold, whole form1,004,073Our database
  4. date of the tradesOct 16, 2025Our database
  5. day the Form 4 was filedOct 17, 2025Our database
  6. side of the tradessaleOur database
  7. value of the sales, whole form (USD)$144.1 millionOur database
  8. average price per share across the form (USD)$143.51Our database
  9. footnote F12: what Magnetar Financial is to the funds2Footnotes of the Form 4 filed Oct 17, 2025 ↗
  10. footnote F15: the shares of some lines are held directly by CW Opportunity 2 LP2Footnotes of the Form 4 filed Oct 17, 2025 ↗
  11. footnote F16: the shares of some lines are held directly by CW Opportunity LLCFootnotes of the Form 4 filed Oct 17, 2025 ↗
  12. footnote F17: the shares of some lines are held directly by Longhorn Special Opportunities Fund LPFootnotes of the Form 4 filed Oct 17, 2025 ↗

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The record

Issuer
CoreWeave (CIK 1769628, filed as CoreWeave, Inc.)
Form
4
Accession
0001104659-25-100515
Filed
Oct 17, 2025
Period of report
Oct 16, 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) · 1,619 Class A Common Stock at $140.00 · Oct 16, 2025 · disposed, indirectly, Footnotes · 5,916,435 held after · footnotes F12, F13, F14 and F15
Line 2
S (sale) · 5,058 Class A Common Stock at $141.42 · Oct 16, 2025 · disposed, indirectly, Footnotes · 5,911,377 held after · footnotes F1, F12, F13, F14 and F15
Line 3
S (sale) · 94,788 Class A Common Stock at $142.85 · Oct 16, 2025 · disposed, indirectly, Footnotes · 5,816,589 held after · footnotes F2, F12, F13, F14 and F15
Line 4
S (sale) · 6,537 Class A Common Stock at $143.33 · Oct 16, 2025 · disposed, indirectly, Footnotes · 5,810,052 held after · footnotes F3, F12, F13, F14 and F15
Line 5
S (sale) · 1,569 Class A Common Stock at $144.00 · Oct 16, 2025 · disposed, indirectly, Footnotes · 5,808,483 held after · footnotes F4, F12, F13, F14 and F15
Line 6
S (sale) · 5,328 Class A Common Stock at $145.42 · Oct 16, 2025 · disposed, indirectly, Footnotes · 5,803,155 held after · footnotes F5, F12, F13, F14 and F15
Line 7
S (sale) · 6,075 Class A Common Stock at $147.83 · Oct 16, 2025 · disposed, indirectly, Footnotes · 5,797,080 held after · footnotes F6, F12, F13, F14 and F15
Line 8
S (sale) · 4,607 Class A Common Stock at $148.59 · Oct 16, 2025 · disposed, indirectly, Footnotes · 5,792,473 held after · footnotes F7, F12, F13, F14 and F15
Line 9
S (sale) · 3,112 Class A Common Stock at $149.99 · Oct 16, 2025 · disposed, indirectly, Footnotes · 5,789,361 held after · footnotes F8, F12, F13, F14 and F15
Line 10
S (sale) · 6,899 Class A Common Stock at $140.00 · Oct 16, 2025 · disposed, indirectly, Footnotes · 23,856,982 held after · footnotes F12, F13, F14 and F16
Line 11
S (sale) · 22,766 Class A Common Stock at $141.42 · Oct 16, 2025 · disposed, indirectly, Footnotes · 23,834,216 held after · footnotes F1, F12, F13, F14 and F16
Line 12
S (sale) · 430,691 Class A Common Stock at $142.85 · Oct 16, 2025 · disposed, indirectly, Footnotes · 23,403,525 held after · footnotes F2, F12, F13, F14 and F16
Line 13
S (sale) · 29,351 Class A Common Stock at $143.32 · Oct 16, 2025 · disposed, indirectly, Footnotes · 23,374,174 held after · footnotes F9, F12, F13, F14 and F16
Line 14
S (sale) · 6,899 Class A Common Stock at $144.00 · Oct 16, 2025 · disposed, indirectly, Footnotes · 23,367,275 held after · footnotes F12, F13, F14 and F16
Line 15
S (sale) · 23,744 Class A Common Stock at $145.42 · Oct 16, 2025 · disposed, indirectly, Footnotes · 23,343,531 held after · footnotes F10, F12, F13, F14 and F16
Line 16
S (sale) · 27,598 Class A Common Stock at $147.83 · Oct 16, 2025 · disposed, indirectly, Footnotes · 23,315,933 held after · footnotes F6, F12, F13, F14 and F16
Line 17
S (sale) · 20,697 Class A Common Stock at $148.58 · Oct 16, 2025 · disposed, indirectly, Footnotes · 23,295,236 held after · footnotes F11, F12, F13, F14 and F16
Line 18
S (sale) · 13,800 Class A Common Stock at $150.00 · Oct 16, 2025 · disposed, indirectly, Footnotes · 23,281,436 held after · footnotes F12, F13, F14 and F16
Line 19
S (sale) · 3,470 Class A Common Stock at $140.00 · Oct 16, 2025 · disposed, indirectly, Footnotes · 2,536,252 held after · footnotes F12, F13, F14 and F17
Line 20
S (sale) · 11,446 Class A Common Stock at $141.42 · Oct 16, 2025 · disposed, indirectly, Footnotes · 2,524,806 held after · footnotes F1, F12, F13, F14 and F17
Line 21
S (sale) · 216,611 Class A Common Stock at $142.85 · Oct 16, 2025 · disposed, indirectly, Footnotes · 2,308,195 held after · footnotes F2, F12, F13, F14 and F17
Line 22
S (sale) · 14,763 Class A Common Stock at $143.32 · Oct 16, 2025 · disposed, indirectly, Footnotes · 2,293,432 held after · footnotes F9, F12, F13, F14 and F17
Line 23
S (sale) · 3,470 Class A Common Stock at $144.00 · Oct 16, 2025 · disposed, indirectly, Footnotes · 2,289,962 held after · footnotes F12, F13, F14 and F17
Line 24
S (sale) · 11,943 Class A Common Stock at $145.42 · Oct 16, 2025 · disposed, indirectly, Footnotes · 2,278,019 held after · footnotes F10, F12, F13, F14 and F17
Line 25
S (sale) · 13,881 Class A Common Stock at $147.83 · Oct 16, 2025 · disposed, indirectly, Footnotes · 2,264,138 held after · footnotes F6, F12, F13, F14 and F17
Line 26
S (sale) · 10,410 Class A Common Stock at $148.58 · Oct 16, 2025 · disposed, indirectly, Footnotes · 2,253,728 held after · footnotes F11, F12, F13, F14 and F17
Line 27
S (sale) · 6,941 Class A Common Stock at $150.00 · Oct 16, 2025 · disposed, indirectly, Footnotes · 2,246,787 held after · footnotes F12, F13, F14 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 $141.00 to $141.95, 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, 10 and 11.
Footnote F2
The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $142.00 to $142.89, 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 $143.00 to $143.85, 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 $144.00 to $144.24, 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 $145.00 to $145.78, 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 $147.30 to $148.00, 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 $148.50 to $148.97, 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 $149.75 to $150.00, 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 $143.00 to $143.50, 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 $145.00 to $145.54, inclusive.
Footnote F11
The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $148.50 to $148.75, inclusive.
Footnote F12
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 (collectively, the "Magnetar Funds").
Footnote F13
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 F14
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 F15
These securities are held directly by CW Opportunity 2 LP.
Footnote F16
These securities are held directly by CW Opportunity LLC.
Footnote F17
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$3.59 billion sold
Magnetar Financial LLC · sold, held indirectly$2.9 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$34.69 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 17, 2025
  2. How we collect our data
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