A Form 4 reported that funds tied to Magnetar Financial sold $24.17 million of CoreWeave shares on Apr 17, 2026
Funds tied to Magnetar Financial LLC sold 203,356 CoreWeave shares on Apr 17, 2026 for $24.17 million, at an average price of $118.85 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 17, 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 sold203,356
- value of the sale$24.17 million
- day of the saleApr 17, 2026
- average price per share$118.85
- side of the tradesale
- footnote: Magnetar Financial is investment adviser to fundsinvestment adviserFootnotes of the Form 4 filed Apr 17, 2026 ↗
- footnote: Magnetar Financial is general partner of a fundgeneral partnerFootnotes of the Form 4 filed Apr 17, 2026 ↗
- footnote: Magnetar Financial is manager of fundsmanagerFootnotes of the Form 4 filed Apr 17, 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 17, 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 17, 2026
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The record
- Issuer
- CoreWeave (CIK 1769628, filed as CoreWeave, Inc.)
- Form
- 4
- Accession
- 0001104659-26-045073
- Filed
- Apr 17, 2026
- Period of report
- Apr 17, 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) · 13,236 Class A Common Stock at $118.18 · Apr 17, 2026 · disposed, indirectly, Footnotes · 5,084,212 held after · footnotes F2, F3, F4 and F5
- Line 2
- S (sale) · 4,437 Class A Common Stock at $120.86 · Apr 17, 2026 · disposed, indirectly, Footnotes · 5,079,775 held after · footnotes F1, F2, F3, F4 and F5
- Line 3
- S (sale) · 40,851 Class A Common Stock at $118.18 · Apr 17, 2026 · disposed, indirectly, Footnotes · 20,809,143 held after · footnotes F2, F3, F4 and F6
- Line 4
- S (sale) · 13,715 Class A Common Stock at $120.86 · Apr 17, 2026 · disposed, indirectly, Footnotes · 20,795,428 held after · footnotes F1, F2, F3, F4 and F6
- Line 5
- S (sale) · 5,356 Class A Common Stock at $118.18 · Apr 17, 2026 · disposed, indirectly, Footnotes · 1,392,224 held after · footnotes F2, F3, F4 and F7
- Line 6
- S (sale) · 1,798 Class A Common Stock at $120.86 · Apr 17, 2026 · disposed, indirectly, Footnotes · 1,390,426 held after · footnotes F1, F2, F3, F4 and F7
- Line 7
- S (sale) · 554 Class A Common Stock at $118.18 · Apr 17, 2026 · disposed, indirectly, Footnotes · 282,016 held after · footnotes F2, F3, F4 and F8
- Line 8
- S (sale) · 184 Class A Common Stock at $120.86 · Apr 17, 2026 · disposed, indirectly, Footnotes · 281,832 held after · footnotes F1, F2, F3, F4 and F8
- Line 9
- S (sale) · 11,939 Class A Common Stock at $118.18 · Apr 17, 2026 · disposed, indirectly, Footnotes · 4,624,064 held after · footnotes F2, F3, F4 and F9
- Line 10
- S (sale) · 4,006 Class A Common Stock at $120.86 · Apr 17, 2026 · disposed, indirectly, Footnotes · 4,620,058 held after · footnotes F1, F2, F3, F4 and F9
- Line 11
- S (sale) · 16,390 Class A Common Stock at $118.18 · Apr 17, 2026 · disposed, indirectly, Footnotes · 5,798,782 held after · footnotes F2, F3, F4 and F10
- Line 12
- S (sale) · 5,500 Class A Common Stock at $120.86 · Apr 17, 2026 · disposed, indirectly, Footnotes · 5,793,282 held after · footnotes F1, F2, F3, F4 and F10
- Line 13
- S (sale) · 20,545 Class A Common Stock at $118.18 · Apr 17, 2026 · disposed, indirectly, Footnotes · 8,248,929 held after · footnotes F2, F3, F4 and F11
- Line 14
- S (sale) · 6,898 Class A Common Stock at $120.86 · Apr 17, 2026 · disposed, indirectly, Footnotes · 8,242,031 held after · footnotes F1, F2, F3, F4 and F11
- Line 15
- S (sale) · 4,642 Class A Common Stock at $118.18 · Apr 17, 2026 · disposed, indirectly, Footnotes · 1,028,732 held after · footnotes F2, F3, F4 and F12
- Line 16
- S (sale) · 1,555 Class A Common Stock at $120.86 · Apr 17, 2026 · disposed, indirectly, Footnotes · 1,027,177 held after · footnotes F1, F2, F3, F4 and F12
- Line 17
- S (sale) · 17,477 Class A Common Stock at $118.18 · Apr 17, 2026 · disposed, indirectly, Footnotes · 8,173,781 held after · footnotes F2, F3, F4 and F13
- Line 18
- S (sale) · 5,866 Class A Common Stock at $120.86 · Apr 17, 2026 · disposed, indirectly, Footnotes · 8,167,915 held after · footnotes F1, F2, F3, F4 and F13
- Line 19
- S (sale) · 10,771 Class A Common Stock at $118.18 · Apr 17, 2026 · disposed, indirectly, Footnotes · 2,814,779 held after · footnotes F2, F3, F4 and F14
- Line 20
- S (sale) · 3,617 Class A Common Stock at $120.86 · Apr 17, 2026 · disposed, indirectly, Footnotes · 2,811,162 held after · footnotes F1, F2, F3, F4 and F14
- Line 21
- S (sale) · 8,677 Class A Common Stock at $118.18 · Apr 17, 2026 · disposed, indirectly, Footnotes · 2,719,553 held after · footnotes F2, F3, F4 and F15
- Line 22
- S (sale) · 2,912 Class A Common Stock at $120.86 · Apr 17, 2026 · disposed, indirectly, Footnotes · 2,716,641 held after · footnotes F1, F2, F3, F4 and F15
- Line 23
- S (sale) · 1,818 Class A Common Stock at $118.18 · Apr 17, 2026 · disposed, indirectly, Footnotes · 804,573 held after · footnotes F2, F3, F4 and F16
- Line 24
- S (sale) · 612 Class A Common Stock at $120.86 · Apr 17, 2026 · disposed, indirectly, Footnotes · 803,961 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 $120.65 to $121.29, 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 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.
- 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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