FilingsForm 4
Magnetar funds sold 244,203 CoreWeave shares for $33.36 million on Oct 17, 2025
Value$33.36 million, held indirectly
Shares244,203, held indirectly
Average price$136.62
FiledOct 17
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 244,203 shares on Oct 17, 2025, at an average of $136.62 a share, for $33.36 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, general partner 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 17, 2025.1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22
How each figure was checked
- reporting owner as the form names itMagnetar Financial LLC
- the owner's relationship to the issuerowner of more than 10% of the shares
- 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)
- shares sold on the form244,203
- day of the tradesOct 17, 2025
- average price per share$136.62
- value of the sales on the form$33.36 million
- how the sale lines are held30 sale lines held indirectly (Footnotes)
- footnote on Magnetar Financial's role toward the Magnetar FundsMagnetar Financial: adviser to the funds this part of the footnote listsFootnotes of the same Form 4 ↗
- footnote on Magnetar Financial's role toward the Magnetar FundsMagnetar Financial: general partner of a fund; manager of a fund; the footnote calls these funds the Magnetar FundsFootnotes of the same Form 4 ↗
- footnote F8: who held shares directlyheld directly by CW Opportunity 2 LPFootnotes of the same Form 4 ↗
- footnote F9: who held shares directlyheld directly by CW Opportunity LLCFootnotes of the same Form 4 ↗
- footnote F10: who held shares directlyheld directly by Longhorn Special Opportunities Fund LPFootnotes of the same Form 4 ↗
- footnote F11: who held shares directlyheld directly by Magnetar Alpha Star Fund LLCFootnotes of the same Form 4 ↗
- footnote F12: who held shares directlyheld directly by Magnetar Capital Master Fund, LtdFootnotes of the same Form 4 ↗
- footnote F13: who held shares directlyheld directly by Magnetar Constellation Master Fund, LtdFootnotes of the same Form 4 ↗
- footnote F14: who held shares directlyheld directly by Magnetar Lake Credit Fund LLCFootnotes of the same Form 4 ↗
- footnote F15: who held shares directlyheld directly by Magnetar SC Fund LtdFootnotes of the same Form 4 ↗
- footnote F16: who held shares directlyheld directly by Magnetar Structured Credit Fund, LPFootnotes of the same Form 4 ↗
- footnote F17: who held shares directlyheld directly by Magnetar Xing He Master Fund LtdFootnotes of the same Form 4 ↗
- the Rule 10b5-1 boxnot ticked: the filing marks no transaction on the form as made under a Rule 10b5-1 plan
- day the form was filedOct 17, 2025
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The record
- Issuer
- CoreWeave (CIK 1769628, filed as CoreWeave, Inc.)
- Form
- 4
- Accession
- 0001104659-25-100521
- Filed
- Oct 17, 2025
- Period of report
- Oct 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) · 18,250 Class A Common Stock at $136.37 · Oct 17, 2025 · disposed, indirectly, Footnotes · 5,771,111 held after · footnotes F1, F5, F6, F7 and F8
- Line 2
- S (sale) · 305 Class A Common Stock at $139.18 · Oct 17, 2025 · disposed, indirectly, Footnotes · 5,770,806 held after · footnotes F2, F5, F6, F7 and F8
- Line 3
- S (sale) · 732 Class A Common Stock at $140.20 · Oct 17, 2025 · disposed, indirectly, Footnotes · 5,770,074 held after · footnotes F3, F5, F6, F7 and F8
- Line 4
- S (sale) · 66,792 Class A Common Stock at $136.39 · Oct 17, 2025 · disposed, indirectly, Footnotes · 23,214,644 held after · footnotes F4, F5, F6, F7 and F9
- Line 5
- S (sale) · 1,375 Class A Common Stock at $139.18 · Oct 17, 2025 · disposed, indirectly, Footnotes · 23,213,269 held after · footnotes F2, F5, F6, F7 and F9
- Line 6
- S (sale) · 3,300 Class A Common Stock at $140.20 · Oct 17, 2025 · disposed, indirectly, Footnotes · 23,209,969 held after · footnotes F3, F5, F6, F7 and F9
- Line 7
- S (sale) · 33,597 Class A Common Stock at $136.39 · Oct 17, 2025 · disposed, indirectly, Footnotes · 2,213,190 held after · footnotes F4, F5, F6, F7 and F10
- Line 8
- S (sale) · 695 Class A Common Stock at $139.18 · Oct 17, 2025 · disposed, indirectly, Footnotes · 2,212,495 held after · footnotes F2, F5, F6, F7 and F10
- Line 9
- S (sale) · 1,668 Class A Common Stock at $140.20 · Oct 17, 2025 · disposed, indirectly, Footnotes · 2,210,827 held after · footnotes F3, F5, F6, F7 and F10
- Line 10
- S (sale) · 8,756 Class A Common Stock at $136.39 · Oct 17, 2025 · disposed, indirectly, Footnotes · 1,707,605 held after · footnotes F4, F5, F6, F7 and F11
- Line 11
- S (sale) · 180 Class A Common Stock at $139.18 · Oct 17, 2025 · disposed, indirectly, Footnotes · 1,707,425 held after · footnotes F2, F5, F6, F7 and F11
- Line 12
- S (sale) · 432 Class A Common Stock at $140.20 · Oct 17, 2025 · disposed, indirectly, Footnotes · 1,706,993 held after · footnotes F3, F5, F6, F7 and F11
- Line 13
- S (sale) · 901 Class A Common Stock at $136.40 · Oct 17, 2025 · disposed, indirectly, Footnotes · 314,640 held after · footnotes F4, F5, F6, F7 and F12
- Line 14
- S (sale) · 20 Class A Common Stock at $139.18 · Oct 17, 2025 · disposed, indirectly, Footnotes · 314,620 held after · footnotes F2, F5, F6, F7 and F12
- Line 15
- S (sale) · 48 Class A Common Stock at $140.20 · Oct 17, 2025 · disposed, indirectly, Footnotes · 314,572 held after · footnotes F3, F5, F6, F7 and F12
- Line 16
- S (sale) · 19,523 Class A Common Stock at $136.39 · Oct 17, 2025 · disposed, indirectly, Footnotes · 5,327,122 held after · footnotes F4, F5, F6, F7 and F13
- Line 17
- S (sale) · 405 Class A Common Stock at $139.18 · Oct 17, 2025 · disposed, indirectly, Footnotes · 5,326,717 held after · footnotes F2, F5, F6, F7 and F13
- Line 18
- S (sale) · 972 Class A Common Stock at $140.20 · Oct 17, 2025 · disposed, indirectly, Footnotes · 5,325,745 held after · footnotes F3, F5, F6, F7 and F13
- Line 19
- S (sale) · 26,801 Class A Common Stock at $136.39 · Oct 17, 2025 · disposed, indirectly, Footnotes · 6,644,337 held after · footnotes F4, F5, F6, F7 and F14
- Line 20
- S (sale) · 555 Class A Common Stock at $139.18 · Oct 17, 2025 · disposed, indirectly, Footnotes · 6,643,782 held after · footnotes F2, F5, F6, F7 and F14
- Line 21
- S (sale) · 1,332 Class A Common Stock at $140.20 · Oct 17, 2025 · disposed, indirectly, Footnotes · 6,642,450 held after · footnotes F3, F5, F6, F7 and F14
- Line 22
- S (sale) · 7,592 Class A Common Stock at $136.39 · Oct 17, 2025 · disposed, indirectly, Footnotes · 1,302,083 held after · footnotes F4, F5, F6, F7 and F15
- Line 23
- S (sale) · 155 Class A Common Stock at $139.18 · Oct 17, 2025 · disposed, indirectly, Footnotes · 1,301,928 held after · footnotes F2, F5, F6, F7 and F15
- Line 24
- S (sale) · 372 Class A Common Stock at $140.20 · Oct 17, 2025 · disposed, indirectly, Footnotes · 1,301,556 held after · footnotes F3, F5, F6, F7 and F15
- Line 25
- S (sale) · 28,582 Class A Common Stock at $136.39 · Oct 17, 2025 · disposed, indirectly, Footnotes · 9,023,670 held after · footnotes F4, F5, F6, F7 and F16
- Line 26
- S (sale) · 590 Class A Common Stock at $139.18 · Oct 17, 2025 · disposed, indirectly, Footnotes · 9,023,080 held after · footnotes F2, F5, F6, F7 and F16
- Line 27
- S (sale) · 1,416 Class A Common Stock at $140.20 · Oct 17, 2025 · disposed, indirectly, Footnotes · 9,021,664 held after · footnotes F3, F5, F6, F7 and F16
- Line 28
- S (sale) · 17,616 Class A Common Stock at $136.39 · Oct 17, 2025 · disposed, indirectly, Footnotes · 3,449,042 held after · footnotes F4, F5, F6, F7 and F17
- Line 29
- S (sale) · 365 Class A Common Stock at $139.18 · Oct 17, 2025 · disposed, indirectly, Footnotes · 3,448,677 held after · footnotes F2, F5, F6, F7 and F17
- Line 30
- S (sale) · 876 Class A Common Stock at $140.20 · Oct 17, 2025 · disposed, indirectly, Footnotes · 3,447,801 held after · footnotes F3, F5, F6, F7 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 $136.00 to $136.97, 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 and 4.
- Footnote F2
- The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $139.00 to $139.35, 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 $140.00 to $140.50, 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 $136.00 to $136.80, inclusive.
- Footnote F5
- 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, Magnetar SC Fund Ltd, Magnetar Xing He Master Fund Ltd and Longhorn Special Opportunities Fund LP, the general partner of Magnetar Structured Credit Fund, LP and the manager of Magnetar Alpha Star Fund LLC and Magnetar Lake Credit Fund LLC (collectively, the "Magnetar Funds").
- Footnote F6
- 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 F7
- 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 F8
- These securities are held directly by CW Opportunity 2 LP.
- Footnote F9
- These securities are held directly by CW Opportunity LLC.
- Footnote F10
- These securities are held directly by Longhorn Special Opportunities Fund LP.
- Footnote F11
- These securities are held directly by Magnetar Alpha Star Fund LLC.
- Footnote F12
- These securities are held directly by Magnetar Capital Master Fund, Ltd.
- Footnote F13
- These securities are held directly by Magnetar Constellation Master Fund, Ltd.
- Footnote F14
- These securities are held directly by Magnetar Lake Credit Fund LLC.
- Footnote F15
- These securities are held directly by Magnetar SC Fund Ltd.
- Footnote F16
- These securities are held directly by Magnetar Structured Credit Fund, LP.
- Footnote F17
- These securities are held directly by Magnetar Xing He Master Fund Ltd.
Insider purchases and sales of CoreWeave shares, since Aug 29, 2025
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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
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- Layoffs, 12 months
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