CoreWeave 10% owner’s collar expires worthless
CoreWeave, Inc. disclosed that investment entities advised by Magnetar Financial had a collar options position on its Class A Common Stock expire worthless.
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Form Type
4
Rhea-AI Filing Summary
CoreWeave, Inc. disclosed that investment entities advised by Magnetar Financial had a collar options position on its Class A Common Stock expire worthless. On June 18, 2026, paired put options with a $115.00 strike and call options with a $200.00 strike covering multiple blocks of shares expired unexercised for no value. The positions were held indirectly through various Magnetar-managed funds, and Magnetar Financial, Magnetar Capital Partners, Supernova Management and David J. Snyderman each disclaim beneficial ownership beyond any pecuniary interest.
Insider Trade Summary
Derivative Expiration: 1,000,000 shares
Derivative Expiration
24 txns
Insider
Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC, Snyderman David J.
Role
10% Owner | 10% Owner | 10% Owner | 10% Owner
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Derivative Expiration | Call option (obligation to sell) | 30,371 | $0.00 | $0.00 |
| Derivative Expiration | Put option (right to sell) | 30,371 | $0.00 | $0.00 |
| Derivative Expiration | Call option (obligation to sell) | 138,001 | $0.00 | $0.00 |
| Derivative Expiration | Put option (right to sell) | 138,001 | $0.00 | $0.00 |
| Derivative Expiration | Call option (obligation to sell) | 18,092 | $0.00 | $0.00 |
| Derivative Expiration | Put option (right to sell) | 18,092 | $0.00 | $0.00 |
| Derivative Expiration | Call option (obligation to sell) | 1,871 | $0.00 | $0.00 |
| Derivative Expiration | Put option (right to sell) | 1,871 | $0.00 | $0.00 |
| Derivative Expiration | Call option (obligation to sell) | 40,331 | $0.00 | $0.00 |
| Derivative Expiration | Put option (right to sell) | 40,331 | $0.00 | $0.00 |
| Derivative Expiration | Call option (obligation to sell) | 55,370 | $0.00 | $0.00 |
| Derivative Expiration | Put option (right to sell) | 55,370 | $0.00 | $0.00 |
| Derivative Expiration | Call option (obligation to sell) | 69,405 | $0.00 | $0.00 |
| Derivative Expiration | Put option (right to sell) | 69,405 | $0.00 | $0.00 |
| Derivative Expiration | Call option (obligation to sell) | 15,682 | $0.00 | $0.00 |
| Derivative Expiration | Put option (right to sell) | 15,682 | $0.00 | $0.00 |
| Derivative Expiration | Call option (obligation to sell) | 59,039 | $0.00 | $0.00 |
| Derivative Expiration | Put option (right to sell) | 59,039 | $0.00 | $0.00 |
| Derivative Expiration | Call option (obligation to sell) | 36,386 | $0.00 | $0.00 |
| Derivative Expiration | Put option (right to sell) | 36,386 | $0.00 | $0.00 |
| Derivative Expiration | Call option (obligation to sell) | 29,311 | $0.00 | $0.00 |
| Derivative Expiration | Put option (right to sell) | 29,311 | $0.00 | $0.00 |
| Derivative Expiration | Call option (obligation to sell) | 6,141 | $0.00 | $0.00 |
| Derivative Expiration | Put option (right to sell) | 6,141 | $0.00 | $0.00 |
Holdings After Transaction:
Call option (obligation to sell) — 0 contracts (Indirect, Footnotes);
Put option (right to sell) — 0 contracts (Indirect, Footnotes)
Footnotes (17)
- F1. In connection with the expiration of a call option and a put option entered into on September 30, 2025, as part of a collar arrangement, both options expired unexercised and for no value on June 18, 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.
- F2. Magnetar Financial LLC ("Magnetar Financial") serves as the investment adviser to each of CW Opportunity 2 LP, 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 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").
- 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 2 LP.
- F6. These securities are held directly by CW Opportunity LLC.
- F7. These securities are held directly by Magnetar Alpha Star Fund LLC.
- F8. These securities are held directly by Magnetar Capital Master Fund, Ltd.
- F9. These securities are held directly by Magnetar Constellation Master Fund, Ltd.
- F10. These securities are held directly by Magnetar Lake Credit Fund LLC.
- F11. These securities are held directly by Magnetar Longhorn Fund LP.
- F12. These securities are held directly by Magnetar SC Fund Ltd.
- F13. These securities are held directly by Magnetar Structured Credit Fund, LP DBA Magnetar Constellation Onshore Fund (They are not separate legal entities).
- F14. These securities are held directly by Magnetar Xing He Master Fund Ltd.
- F15. These securities are held directly by Purpose Alternative Credit Fund - F LLC.
- F16. These securities are held directly by Purpose Alternative Credit Fund - T LLC.
- F17. Expiration of a long derivative security for no value, transaction code "K" only.
Key Figures
Put option strike: $115.00 per share
Call option strike: $200.00 per share
Largest underlying block: 138,001 shares
+3 more
6 metrics
Put option strike
$115.00 per share
Strike price of put options on CoreWeave Class A Common Stock
Call option strike
$200.00 per share
Strike price of call options on CoreWeave Class A Common Stock
Largest underlying block
138,001 shares
Underlying CoreWeave Class A Common Stock for one put/call pair
Derivative transactions
24 transactions
All reported as expirations of short derivative positions
Other transaction count
24
All transactions classified as 'other' in transaction summary
Total shares after each derivative
0 shares
Total shares following each reported derivative expiration
Key Terms
collar arrangement, beneficial ownership, pecuniary interest, derivative security, +1 more
5 terms
collar arrangement financial
"entered into on September 30, 2025, as part of a collar arrangement, both options expired unexercised"
beneficial ownership regulatory
"disclaims beneficial ownership of these shares of Common Stock of the Issuer, except to the extent of its or his pecuniary interest"
Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.
pecuniary interest financial
"disclaims beneficial ownership of these shares of Common Stock of the Issuer, except to the extent of its or his pecuniary interest therein"
derivative security financial
"Expiration of a long derivative security for no value, transaction code "K" only"
A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.
short derivative position financial
"transaction code description: Expiration of short derivative position"
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What were the strike prices of the CoreWeave (CRWV) options in Magnetar’s collar?
The collar used a put option with a strike price of $115.00 and a call option with a strike price of $200.00. Both related to CoreWeave Class A Common Stock and expired unexercised for no value on June 18, 2026.
Which entities actually held the CoreWeave (CRWV) securities referenced in this Form 4?
The securities were held directly by various Magnetar-managed funds, including CW Opportunity 2 LP, CW Opportunity LLC and multiple Magnetar and Purpose funds. Magnetar Financial and related entities are advisers or parents and disclaim beneficial ownership beyond their pecuniary interest.
How many derivative transactions did the CoreWeave (CRWV) Form 4 report for Magnetar?
The filing reports 24 derivative transactions, all classified as expirations of short derivative positions. These cover multiple put and call option blocks under a collar arrangement, each tied to CoreWeave Class A Common Stock and expiring unexercised for no value.
Does this CoreWeave (CRWV) Form 4 show remaining derivative positions for Magnetar entities?
The filing’s derivative summary shows no remaining derivative positions from these contracts. All reported puts and calls under the collar arrangement expired on June 18, 2026, with total shares following each transaction listed as zero.
AI-generated analysis. How Rhea-AI works. Not financial advice.
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