CoreWeave holder reports collar option expiration
CoreWeave, Inc. investment vehicles managed by Magnetar Financial LLC reported the expiration of a collar made up of put and call options on Class A Common Stock.
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Form Type
4
Rhea-AI Filing Summary
CoreWeave, Inc. investment vehicles managed by Magnetar Financial LLC reported the expiration of a collar made up of put and call options on Class A Common Stock. According to the filing, put and call options entered into on August 21, 2025 expired unexercised and for no value on June 18, 2026, as the stock’s closing price fell between the put strike of $70 and the call strike of $155.
The positions were short derivative contracts held indirectly through entities such as CW Opportunity LLC and various Magnetar funds, which disclaim beneficial ownership except for their pecuniary interests.
Insider Trade Summary
Derivative Expiration: 4,000,000 shares
Derivative Expiration
22 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) | 587,701 | $0.00 | $0.00 |
| Derivative Expiration | Put option (right to sell) | 587,701 | $0.00 | $0.00 |
| Derivative Expiration | Call option (obligation to sell) | 77,050 | $0.00 | $0.00 |
| Derivative Expiration | Put option (right to sell) | 77,050 | $0.00 | $0.00 |
| Derivative Expiration | Call option (obligation to sell) | 7,966 | $0.00 | $0.00 |
| Derivative Expiration | Put option (right to sell) | 7,966 | $0.00 | $0.00 |
| Derivative Expiration | Call option (obligation to sell) | 171,756 | $0.00 | $0.00 |
| Derivative Expiration | Put option (right to sell) | 171,756 | $0.00 | $0.00 |
| Derivative Expiration | Call option (obligation to sell) | 235,802 | $0.00 | $0.00 |
| Derivative Expiration | Put option (right to sell) | 235,802 | $0.00 | $0.00 |
| Derivative Expiration | Call option (obligation to sell) | 295,575 | $0.00 | $0.00 |
| Derivative Expiration | Put option (right to sell) | 295,575 | $0.00 | $0.00 |
| Derivative Expiration | Call option (obligation to sell) | 66,784 | $0.00 | $0.00 |
| Derivative Expiration | Put option (right to sell) | 66,784 | $0.00 | $0.00 |
| Derivative Expiration | Call option (obligation to sell) | 251,430 | $0.00 | $0.00 |
| Derivative Expiration | Put option (right to sell) | 251,430 | $0.00 | $0.00 |
| Derivative Expiration | Call option (obligation to sell) | 154,956 | $0.00 | $0.00 |
| Derivative Expiration | Put option (right to sell) | 154,956 | $0.00 | $0.00 |
| Derivative Expiration | Call option (obligation to sell) | 124,827 | $0.00 | $0.00 |
| Derivative Expiration | Put option (right to sell) | 124,827 | $0.00 | $0.00 |
| Derivative Expiration | Call option (obligation to sell) | 26,153 | $0.00 | $0.00 |
| Derivative Expiration | Put option (right to sell) | 26,153 | $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 (16)
- F1. In connection with the expiration of a call option and a put option entered into on August 21, 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 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 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.
- 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 DBA Magnetar Constellation Onshore Fund. They are not separate legal entities.
- 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.
Key Figures
Largest underlying share block: 587,701 shares
Put strike price: $70.00
Call strike price: $155.00
+1 more
4 metrics
Largest underlying share block
587,701 shares
Underlying Class A Common Stock for expiring options
Put strike price
$70.00
Strike price of put options in collar arrangement
Call strike price
$155.00
Strike price of call options in collar arrangement
Derivative transactions reported
22 transactions
All coded as expirations of short derivative positions
Key Terms
collar arrangement, beneficial ownership, pecuniary interest, derivative security
4 terms
collar arrangement financial
"entered into on August 21, 2025, as part of a collar arrangement, both options expired"
beneficial ownership financial
"disclaims beneficial ownership of these shares of Common Stock of the Issuer"
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 ... except to the extent of its or his pecuniary interest"
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.
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What were the strike prices of the CoreWeave (CRWV) options that expired?
The collar used put options with a $70 strike price and call options with a $155 strike price. The filing notes the options expired unexercised because the Class A Common Stock’s closing price on June 18, 2026 was between these two strike levels.
When did the CoreWeave (CRWV) option collar start and end?
The options were entered into on August 21, 2025 as part of a collar arrangement and expired on June 18, 2026. On the expiration date, the underlying CoreWeave Class A Common Stock closed between the collar’s put and call strike prices, so the options lapsed for no value.
Who actually held the CoreWeave (CRWV) derivative positions in this Form 4?
The derivative positions were held by entities such as CW Opportunity LLC and various Magnetar funds. Magnetar Financial LLC acts as investment adviser or manager, while related entities and David J. Snyderman disclaim beneficial ownership except to the extent of their pecuniary interests.
What does it mean that the CoreWeave (CRWV) options expired for no value?
It means both the put and call options in the collar finished out-of-the-money on expiration, so they were not exercised and became worthless. No cash settlement or share delivery occurred for these short derivative positions when they expired on June 18, 2026.
AI-generated analysis. How Rhea-AI works. Not financial advice.
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