FilingsForm 4

Magnetar Financial LLC reported selling 915,339 CoreWeave shares for $94.44 million on Aug 28, 2025

From the public record1 min read

Published Oct 27, 2026 · 23:21 UTCFiled Aug 29, 2025

Value$94.44 million, held indirectly

Shares915,339, held indirectly

Average price$103.17

FiledAug 29

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 915,339 shares for $94.44 million on Aug 28, 2025, at an average of $103.17 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 CW Opportunity 2 LP, to which Magnetar Financial LLC was investment adviser, held them directly. The form also listed 8 purchase lines and 8 sale lines for derivative securities, which are not part of these totals. The Form 4 was filed on Aug 29, 2025 and can be read on SEC EDGAR.1 2 3 4 5 6 7 8 9 10 11 12

How each figure was checked12 facts

ownerMagnetar Financial LLCOur database
relationshipowner of more than 10% of the sharesOur database
shares915,339Our database
value$94.44 millionOur database
first dateAug 28, 2025Our database
average price$103.17Our database
holding12 sale lines held indirectly (Footnotes)Our database
Magnetar Financial LLC is investment adviser to a fund named in the footnotesinvestment adviser to CW Opportunity 2 LPFootnotes of the Form 4 filed Aug 29, 2025 ↗
a fund holds shares of this form directlyheld directly by CW Opportunity 2 LPFootnotes of the Form 4 filed Aug 29, 2025 ↗
other linesThe form also lists 8 lines for purchase (derivative) and 8 lines for sale (derivative).Our database
by holderthe sale lines of this form, by who held the shares: Footnotes (held indirectly): 915339 shares for 94435463.1 USDOur database
filed onAug 29, 2025Our database

The record

Issuer: CoreWeave (CIK 1769628, filed as CoreWeave, Inc.)
Form: 4
Accession: 0001104659-25-085841
Filed: Aug 29, 2025
Period of report: Aug 28, 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) · 307,164 Class A Common Stock at $103.15 · Aug 28, 2025 · disposed, indirectly, Footnotes · 7,199,615 held after · footnotes F1, F2, F3, F4 and F5
Line 2: S (sale) · 178,714 Class A Common Stock at $103.18 · Aug 28, 2025 · disposed, indirectly, Footnotes · 29,013,965 held after · footnotes F2, F3, F4 and F6
Line 3: S (sale) · 23,429 Class A Common Stock at $103.18 · Aug 28, 2025 · disposed, indirectly, Footnotes · 2,467,940 held after · footnotes F2, F3, F4 and F7
Line 4: S (sale) · 2,421 Class A Common Stock at $103.18 · Aug 28, 2025 · disposed, indirectly, Footnotes · 393,283 held after · footnotes F2, F3, F4 and F8
Line 5: S (sale) · 52,229 Class A Common Stock at $103.18 · Aug 28, 2025 · disposed, indirectly, Footnotes · 7,022,006 held after · footnotes F2, F3, F4 and F9
Line 6: S (sale) · 71,704 Class A Common Stock at $103.18 · Aug 28, 2025 · disposed, indirectly, Footnotes · 8,971,194 held after · footnotes F2, F3, F4 and F10
Line 7: S (sale) · 89,881 Class A Common Stock at $103.18 · Aug 28, 2025 · disposed, indirectly, Footnotes · 9,915,133 held after · footnotes F2, F3, F4 and F11
Line 8: S (sale) · 20,309 Class A Common Stock at $103.18 · Aug 28, 2025 · disposed, indirectly, Footnotes · 1,961,100 held after · footnotes F2, F3, F4 and F12
Line 9: S (sale) · 76,456 Class A Common Stock at $103.18 · Aug 28, 2025 · disposed, indirectly, Footnotes · 11,504,765 held after · footnotes F2, F3, F4 and F13
Line 10: S (sale) · 47,120 Class A Common Stock at $103.18 · Aug 28, 2025 · disposed, indirectly, Footnotes · 4,978,125 held after · footnotes F2, F3, F4 and F14
Line 11: S (sale) · 37,959 Class A Common Stock at $103.18 · Aug 28, 2025 · disposed, indirectly, Footnotes · 4,410,924 held after · footnotes F2, F3, F4 and F15
Line 12: S (sale) · 7,953 Class A Common Stock at $103.18 · Aug 28, 2025 · disposed, indirectly, Footnotes · 1,161,455 held after · footnotes F2, F3, F4 and F16
Derivative line 1: S (sale) · 176,310 Call option (obligation to sell) at $1,234,170.00 · Aug 28, 2025 · disposed, indirectly, Footnotes · 176,310 held after · footnotes F2, F3, F4, F6 and F18
Derivative line 2: P (purchase) · 176,310 Put option (right to sell) at $1,410,480.00 · Aug 28, 2025 · acquired, indirectly, Footnotes · 176,310 held after · footnotes F2, F3, F4, F6 and F18
Derivative line 3: S (sale) · 23,115 Call option (obligation to sell) at $161,805.00 · Aug 28, 2025 · disposed, indirectly, Footnotes · 23,115 held after · footnotes F2, F3, F4, F7 and F18
Derivative line 4: P (purchase) · 23,115 Put option (right to sell) at $184,920.00 · Aug 28, 2025 · acquired, indirectly, Footnotes · 23,115 held after · footnotes F2, F3, F4, F7 and F18
Derivative line 5: S (sale) · 2,390 Call option (obligation to sell) at $16,730.00 · Aug 28, 2025 · disposed, indirectly, Footnotes · 2,390 held after · footnotes F2, F3, F4, F8 and F18
Derivative line 6: P (purchase) · 2,390 Put option (right to sell) at $19,120.00 · Aug 28, 2025 · acquired, indirectly, Footnotes · 2,390 held after · footnotes F2, F3, F4, F8 and F18
Derivative line 7: S (sale) · 51,527 Call option (obligation to sell) at $360,689.00 · Aug 28, 2025 · disposed, indirectly, Footnotes · 51,527 held after · footnotes F2, F3, F4, F9 and F18
Derivative line 8: P (purchase) · 51,527 Put option (right to sell) at $412,216.00 · Aug 28, 2025 · acquired, indirectly, Footnotes · 51,527 held after · footnotes F2, F3, F4, F9 and F18
Derivative line 9: S (sale) · 70,741 Call option (obligation to sell) at $495,187.00 · Aug 28, 2025 · disposed, indirectly, Footnotes · 70,741 held after · footnotes F2, F3, F4, F10 and F18
Derivative line 10: P (purchase) · 70,741 Put option (right to sell) at $565,928.00 · Aug 28, 2025 · acquired, indirectly, Footnotes · 70,741 held after · footnotes F2, F3, F4, F10 and F18
Derivative line 11: S (sale) · 88,673 Call option (obligation to sell) at $620,711.00 · Aug 28, 2025 · disposed, indirectly, Footnotes · 88,673 held after · footnotes F2, F3, F4, F11 and F18
Derivative line 12: P (purchase) · 88,673 Put option (right to sell) at $709,384.00 · Aug 28, 2025 · acquired, indirectly, Footnotes · 88,673 held after · footnotes F2, F3, F4, F11 and F18
Derivative line 13: S (sale) · 20,035 Call option (obligation to sell) at $140,245.00 · Aug 28, 2025 · disposed, indirectly, Footnotes · 20,035 held after · footnotes F2, F3, F4, F12 and F18
Derivative line 14: P (purchase) · 20,035 Put option (right to sell) at $160,280.00 · Aug 28, 2025 · acquired, indirectly, Footnotes · 20,035 held after · footnotes F2, F3, F4, F12 and F18
Derivative line 15: S (sale) · 75,428 Call option (obligation to sell) at $527,996.00 · Aug 28, 2025 · disposed, indirectly, Footnotes · 75,428 held after · footnotes F2, F3, F4, F13 and F18
Derivative line 16: P (purchase) · 75,428 Put option (right to sell) at $603,424.00 · Aug 28, 2025 · acquired, indirectly, Footnotes · 75,428 held after · footnotes F2, F3, F4, F13 and F18
Footnote F1: The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $102.97 to $103.18, 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 LLC, CW Opportunity 2 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, Purpose Alternative Credit Fund - T LLC, 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 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 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.
Footnote F18: The entity holding the underlying shares of Class A common stock (the "Common Stock") of the Issuer entered into a collar arrangement pursuant to which such entity wrote a covered call option and purchased a put option. Only one of the options can be in-the-money on the expiration date, at which time the in-the-money option will be exercised and settled in shares and the other option will expire. If neither option is in-the-money on the expiration date, both options will expire.