FilingsForm 4
A Form 4 reported that funds tied to Magnetar Financial sold $38.25 million of CoreWeave shares on Apr 21, 2026
Value$38.25 million, held indirectly
Shares323,452, held indirectly
Average price$118.26
FiledApr 22
Funds tied to Magnetar Financial LLC sold 323,452 CoreWeave shares on Apr 21, 2026 for $38.25 million, at an average price of $118.26 a share, according to a Form 4 (the form an insider files when trading a company's shares). The form lists Magnetar Financial as an owner of more than 10% of CoreWeave's shares, and its footnotes say the shares sold were held directly by funds for which Magnetar Financial serves as investment adviser, general partner or manager. The form's Rule 10b5-1 box, which marks trades made under a pre-set trading plan, is not ticked. The Form 4, filed on Apr 22, 2026, is on the SEC's EDGAR database.1,2,3,4,5,6,7,8,9,10,11,12,13
How each figure was checked
- the reporting owner as filedMagnetar Financial LLC
- shares sold323,452
- value of the sale$38.25 million
- day of the saleApr 21, 2026
- average price per share$118.26
- side of the tradesale
- footnote: Magnetar Financial is investment adviser to fundsinvestment adviserFootnotes of the Form 4 filed Apr 22, 2026 ↗
- footnote: Magnetar Financial is general partner of a fundgeneral partnerFootnotes of the Form 4 filed Apr 22, 2026 ↗
- footnote: Magnetar Financial is manager of fundsmanagerFootnotes of the Form 4 filed Apr 22, 2026 ↗
- the owner's relationship to the companyowner of more than 10% of the shares
- footnote F5: held directly by a fundheld directly by CW Opportunity 2 LPFootnotes of the Form 4 filed Apr 22, 2026 ↗
- the Rule 10b5-1 checkboxnot ticked: the filing marks no transaction on the form as made under a Rule 10b5-1 plan
- day the form was filedApr 22, 2026
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The record
- Issuer
- CoreWeave (CIK 1769628, filed as CoreWeave, Inc.)
- Form
- 4
- Accession
- 0001104659-26-046993
- Filed
- Apr 22, 2026
- Period of report
- Apr 21, 2026
- 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) · 28,117 Class A Common Stock at $118.26 · Apr 21, 2026 · disposed, indirectly, Footnotes · 5,023,856 held after · footnotes F1, F2, F3, F4 and F5
- Line 2
- S (sale) · 86,783 Class A Common Stock at $118.26 · Apr 21, 2026 · disposed, indirectly, Footnotes · 20,622,833 held after · footnotes F1, F2, F3, F4 and F6
- Line 3
- S (sale) · 11,376 Class A Common Stock at $118.26 · Apr 21, 2026 · disposed, indirectly, Footnotes · 1,367,799 held after · footnotes F1, F2, F3, F4 and F7
- Line 4
- S (sale) · 1,179 Class A Common Stock at $118.26 · Apr 21, 2026 · disposed, indirectly, Footnotes · 279,489 held after · footnotes F1, F2, F3, F4 and F8
- Line 5
- S (sale) · 25,361 Class A Common Stock at $118.26 · Apr 21, 2026 · disposed, indirectly, Footnotes · 4,569,619 held after · footnotes F1, F2, F3, F4 and F9
- Line 6
- S (sale) · 34,817 Class A Common Stock at $118.26 · Apr 21, 2026 · disposed, indirectly, Footnotes · 5,724,032 held after · footnotes F1, F2, F3, F4 and F10
- Line 7
- S (sale) · 43,649 Class A Common Stock at $118.26 · Apr 21, 2026 · disposed, indirectly, Footnotes · 8,155,224 held after · footnotes F1, F2, F3, F4 and F11
- Line 8
- S (sale) · 9,859 Class A Common Stock at $118.26 · Apr 21, 2026 · disposed, indirectly, Footnotes · 1,007,567 held after · footnotes F1, F2, F3, F4 and F12
- Line 9
- S (sale) · 37,129 Class A Common Stock at $118.26 · Apr 21, 2026 · disposed, indirectly, Footnotes · 8,094,072 held after · footnotes F1, F2, F3, F4 and F13
- Line 10
- S (sale) · 22,886 Class A Common Stock at $118.26 · Apr 21, 2026 · disposed, indirectly, Footnotes · 2,765,650 held after · footnotes F1, F2, F3, F4 and F14
- Line 11
- S (sale) · 18,435 Class A Common Stock at $118.26 · Apr 21, 2026 · disposed, indirectly, Footnotes · 2,679,978 held after · footnotes F1, F2, F3, F4 and F15
- Line 12
- S (sale) · 3,861 Class A Common Stock at $118.26 · Apr 21, 2026 · disposed, indirectly, Footnotes · 796,282 held after · footnotes F1, F2, F3, F4 and F16
- Footnote F1
- The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $118.00 to $118.74, 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.
- Footnote F2
- 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, Magnetar Constellation Master Fund, Ltd, Magnetar Longhorn Fund LP, Magnetar SC Fund Ltd, Magnetar Xing He Master Fund Ltd, Purpose Alternative Credit Fund - F LLC, and Purpose Alternative Credit Fund - T LLC, the general partner of Magnetar Structured Credit Fund, LP DBA Magnetar Constellation Onshore Fund (They are not separate legal entities), and the manager of Magnetar Alpha Star Fund LLC and Magnetar Lake Credit Fund LLC (collectively, the "Magnetar Funds").
- Footnote F3
- 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 F4
- 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 F5
- These securities are held directly by CW Opportunity 2 LP.
- Footnote F6
- These securities are held directly by CW Opportunity LLC.
- Footnote F7
- These securities are held directly by Magnetar Alpha Star Fund LLC.
- Footnote F8
- These securities are held directly by Magnetar Capital Master Fund, Ltd.
- Footnote F9
- These securities are held directly by Magnetar Constellation Master Fund, Ltd.
- Footnote F10
- These securities are held directly by Magnetar Lake Credit Fund LLC.
- Footnote F11
- These securities are held directly by Magnetar Longhorn Fund LP.
- Footnote F12
- These securities are held directly by Magnetar SC Fund Ltd.
- Footnote F13
- These securities are held directly by Magnetar Structured Credit Fund, LP DBA Magnetar Constellation Onshore Fund. They are not separate legal entities.
- Footnote F14
- These securities are held directly by Magnetar Xing He Master Fund Ltd.
- Footnote F15
- These securities are held directly by Purpose Alternative Credit Fund - F LLC.
- Footnote F16
- These securities are held directly by Purpose Alternative Credit Fund - T LLC.
- Footnote F17
- These securities are held directly by Longhorn Special Opportunities Fund LP.
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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