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CoreWeave, Inc.·4

Mar 20, 8:17 PM ET

Magnetar Financial LLC 4

4 · CoreWeave, Inc. · Filed Mar 20, 2026

Research Summary

AI-generated summary of this filing

Updated

CoreWeave (CRWV) 10% Owner Magnetar Financial: Derivative Positions Expire

What Happened
Magnetar Financial LLC, reported as adviser to several Magnetar funds and a 10% owner of CoreWeave (CRWV), recorded the expiration of multiple short derivative positions tied to CoreWeave Class A common stock on March 20, 2026. In total, 1,400,000 underlying shares (sum of listed positions) expired unexercised and for no value ($0), as the options were part of a collar arrangement entered on August 22, 2025 and the stock closed between the call and put strike prices on expiration. These were expirations of derivative contracts (transaction code "E"), not open-market sales or purchases of stock.

Key Details

  • Transaction date: 2026-03-20 (filing date 2026-03-20 — same day).
  • Total underlying shares expired: 1,400,000 (multiple positions listed, each expired for $0.00).
  • Reported transaction type: Expiration of short derivative positions (code E); one footnote references expiration of a long derivative for no value (code K).
  • Reason: Collar options (call and put entered 8/22/2025) expired unexercised because the closing price was between the call and put strike prices (Footnote F1).
  • Holdings: The securities subject to the expired derivatives are held directly by various Magnetar funds (see footnotes F5–F15). Magnetar Financial is the investment adviser to those funds (F2).
  • Shares owned after transaction: Not specified in the provided filing details.
  • Beneficial-ownership note: Magnetar entities and related parties disclaim beneficial ownership except to the extent of pecuniary interest (F4).
  • Filing timeliness: Filed on the same date as the reported expirations (no late filing indicated).

Context
These transactions are expirations of derivative contracts under a collar — no shares changed hands and no cash proceeded from the expirations. This is an institutional/investment-manager action (Magnetar and its funds), not an executive insider sale or purchase; such expirations typically reflect contract terms reaching maturity rather than a direct market sentiment signal.

Insider Transaction Report

Form 4
Period: 2026-03-20
CoreWeave, Inc.CRWV
Magnetar Financial LLC
10% Owner
Transactions
  • ExpirationSwap

    Call option (obligation to sell)

    [F1][F2][F3][F4][F5]
    2026-03-20−205,695→ 235,080 total(indirect: Footnotes)
    Exercise: $160.00From: 2026-03-20Exp: 2026-03-20→ Class A Common Stock (205,695 underlying)
  • ExpirationSwap

    Put option (right to sell)

    [F1][F16][F2][F3][F4][F5]
    2026-03-20−205,695→ 235,080 total(indirect: Footnotes)
    Exercise: $70.00From: 2026-03-20Exp: 2026-03-20→ Class A Common Stock (205,695 underlying)
  • ExpirationSwap

    Call option (obligation to sell)

    [F1][F2][F3][F4][F6]
    2026-03-20−26,968→ 30,820 total(indirect: Footnotes)
    Exercise: $160.00From: 2026-03-20Exp: 2026-03-20→ Class A Common Stock (26,968 underlying)
  • ExpirationSwap

    Put option (right to sell)

    [F1][F16][F2][F3][F4][F6]
    2026-03-20−26,968→ 30,820 total(indirect: Footnotes)
    Exercise: $70.00From: 2026-03-20Exp: 2026-03-20→ Class A Common Stock (26,968 underlying)
  • ExpirationSwap

    Call option (obligation to sell)

    [F1][F2][F3][F4][F7]
    2026-03-20−2,787→ 3,187 total(indirect: Footnotes)
    Exercise: $160.00From: 2026-03-20Exp: 2026-03-20→ Class A Common Stock (2,787 underlying)
  • ExpirationSwap

    Put option (right to sell)

    [F1][F16][F2][F3][F4][F7]
    2026-03-20−2,787→ 3,187 total(indirect: Footnotes)
    Exercise: $70.00From: 2026-03-20Exp: 2026-03-20→ Class A Common Stock (2,787 underlying)
  • ExpirationSwap

    Call option (obligation to sell)

    [F1][F2][F3][F4][F8]
    2026-03-20−60,115→ 68,703 total(indirect: Footnotes)
    Exercise: $160.00From: 2026-03-20Exp: 2026-03-20→ Class A Common Stock (60,115 underlying)
  • ExpirationSwap

    Put option (right to sell)

    [F1][F16][F2][F3][F4][F8]
    2026-03-20−60,115→ 68,703 total(indirect: Footnotes)
    Exercise: $70.00From: 2026-03-20Exp: 2026-03-20→ Class A Common Stock (60,115 underlying)
  • ExpirationSwap

    Call option (obligation to sell)

    [F1][F2][F3][F4][F9]
    2026-03-20−82,531→ 94,321 total(indirect: Footnotes)
    Exercise: $160.00From: 2026-03-20Exp: 2026-03-20→ Class A Common Stock (82,531 underlying)
  • ExpirationSwap

    Put option (right to sell)

    [F1][F16][F2][F3][F4][F9]
    2026-03-20−82,531→ 94,321 total(indirect: Footnotes)
    Exercise: $70.00From: 2026-03-20Exp: 2026-03-20→ Class A Common Stock (82,531 underlying)
  • ExpirationSwap

    Call option (obligation to sell)

    [F1][F2][F3][F4][F10]
    2026-03-20−103,451→ 118,230 total(indirect: Footnotes)
    Exercise: $160.00From: 2026-03-20Exp: 2026-03-20→ Class A Common Stock (103,451 underlying)
  • ExpirationSwap

    Put option (right to sell)

    [F1][F16][F2][F3][F4][F10]
    2026-03-20−103,451→ 118,230 total(indirect: Footnotes)
    Exercise: $70.00From: 2026-03-20Exp: 2026-03-20→ Class A Common Stock (103,451 underlying)
  • ExpirationSwap

    Call option (obligation to sell)

    [F1][F2][F3][F4][F11]
    2026-03-20−23,374→ 26,713 total(indirect: Footnotes)
    Exercise: $160.00From: 2026-03-20Exp: 2026-03-20→ Class A Common Stock (23,374 underlying)
  • ExpirationSwap

    Put option (right to sell)

    [F1][F16][F2][F3][F4][F11]
    2026-03-20−23,374→ 26,713 total(indirect: Footnotes)
    Exercise: $70.00From: 2026-03-20Exp: 2026-03-20→ Class A Common Stock (23,374 underlying)
  • ExpirationSwap

    Call option (obligation to sell)

    [F1][F2][F3][F4][F12]
    2026-03-20−88,000→ 100,572 total(indirect: Footnotes)
    Exercise: $160.00From: 2026-03-20Exp: 2026-03-20→ Class A Common Stock (88,000 underlying)
  • ExpirationSwap

    Put option (right to sell)

    [F1][F16][F2][F3][F4][F12]
    2026-03-20−88,000→ 100,572 total(indirect: Footnotes)
    Exercise: $70.00From: 2026-03-20Exp: 2026-03-20→ Class A Common Stock (88,000 underlying)
  • ExpirationSwap

    Call option (obligation to sell)

    [F1][F2][F3][F4][F13]
    2026-03-20−54,235→ 61,982 total(indirect: Footnotes)
    Exercise: $160.00From: 2026-03-20Exp: 2026-03-20→ Class A Common Stock (54,235 underlying)
  • ExpirationSwap

    Put option (right to sell)

    [F1][F16][F2][F3][F4][F13]
    2026-03-20−54,235→ 61,982 total(indirect: Footnotes)
    Exercise: $70.00From: 2026-03-20Exp: 2026-03-20→ Class A Common Stock (54,235 underlying)
  • ExpirationSwap

    Call option (obligation to sell)

    [F1][F2][F3][F4][F14]
    2026-03-20−43,690→ 49,931 total(indirect: Footnotes)
    Exercise: $160.00From: 2026-03-20Exp: 2026-03-20→ Class A Common Stock (43,690 underlying)
  • ExpirationSwap

    Put option (right to sell)

    [F1][F16][F2][F3][F4][F14]
    2026-03-20−43,690→ 49,931 total(indirect: Footnotes)
    Exercise: $70.00From: 2026-03-20Exp: 2026-03-20→ Class A Common Stock (43,690 underlying)
  • ExpirationSwap

    Call option (obligation to sell)

    [F1][F2][F3][F4][F15]
    2026-03-20−9,154→ 10,461 total(indirect: Footnotes)
    Exercise: $160.00From: 2026-03-20Exp: 2026-03-20→ Class A Common Stock (9,154 underlying)
  • ExpirationSwap

    Put option (right to sell)

    [F1][F16][F2][F3][F4][F15]
    2026-03-20−9,154→ 10,461 total(indirect: Footnotes)
    Exercise: $70.00From: 2026-03-20Exp: 2026-03-20→ Class A Common Stock (9,154 underlying)
Footnotes (16)
  • [F1]In connection with the expiration of a call option and a put option entered into on August 22, 2025, as part of a collar arrangement, both options expired unexercised and for no value on March 20, 2026, as the closing price of the Class A Common Stock on such date was between the call strike price and the put strike price.
  • [F10]These securities are held directly by Magnetar Longhorn Fund LP.
  • [F11]These securities are held directly by Magnetar SC Fund Ltd.
  • [F12]These securities are held directly by Magnetar Structured Credit Fund, LP.
  • [F13]These securities are held directly by Magnetar Xing He Master Fund Ltd.
  • [F14]These securities are held directly by Purpose Alternative Credit Fund - F LLC.
  • [F15]These securities are held directly by Purpose Alternative Credit Fund - T LLC.
  • [F16]Expiration of a long derivative security for no value, transaction code "K" only.
  • [F2]Magnetar Financial LLC ("Magnetar Financial") serves as the investment adviser to each of CW Opportunity LLC, 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").
  • [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.
  • [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.
  • [F5]These securities are held directly by CW Opportunity LLC.
  • [F6]These securities are held directly by Magnetar Alpha Star Fund LLC.
  • [F7]These securities are held directly by Magnetar Capital Master Fund, Ltd.
  • [F8]These securities are held directly by Magnetar Constellation Master Fund, Ltd.
  • [F9]These securities are held directly by Magnetar Lake Credit Fund LLC.

Documents

1 file
  • 4
    tm269479-4_4seq1.xmlPrimary

    OWNERSHIP DOCUMENT