Magnetar funds sell call options on CoreWeave stock
CoreWeave, Inc. reported that investment funds advised by Magnetar Financial entered into open-market sale transactions in call options described as an obligation to sell, referencing a total of 550,000 shares of Class A common stock on May 6, 2026.
Rhea-AI Filing Summary
CoreWeave, Inc. reported that investment funds advised by Magnetar Financial entered into open-market sale transactions in call options described as an obligation to sell, referencing a total of 550,000 shares of Class A common stock on May 6, 2026.
The options have exercise prices of $190.00 and $195.00 per share and are scheduled to be exercisable and to expire on December 18, 2026. The securities are held directly by CW Opportunity 2 LP, CW Opportunity LLC and other Magnetar-branded funds, while Magnetar Financial, its parent entities and David J. Snyderman disclaim beneficial ownership except to the extent of any pecuniary interest.
Positive
- None.
Negative
- None.
Insider Trade Summary
Net Seller: 550,000 shares
Net Sell
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
Sold
550,000 shs
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Sale | Call option (obligation to sell) | 43,739 | $887,901.70 | $38.84B |
| Sale | Call option (obligation to sell) | 4,375 | $87,500.00 | $382.81M |
| Sale | Call option (obligation to sell) | 138,705 | $2,815,711.50 as filed | -- |
| Sale | Call option (obligation to sell) | 13,870 | $277,400.00 | $3.85B |
| Sale | Call option (obligation to sell) | 18,185 | $369,155.50 | $6.71B |
| Sale | Call option (obligation to sell) | 1,818 | $36,360.00 | $66.10M |
| Sale | Call option (obligation to sell) | 1,880 | $38,164.00 | $71.75M |
| Sale | Call option (obligation to sell) | 188 | $3,760.00 | $707K |
| Sale | Call option (obligation to sell) | 40,536 | $822,880.80 | $33.36B |
| Sale | Call option (obligation to sell) | 4,054 | $81,080.00 | $328.70M |
| Sale | Call option (obligation to sell) | 55,652 | $1,129,735.60 | $62.87B |
| Sale | Call option (obligation to sell) | 5,565 | $111,300.00 | $619.38M |
| Sale | Call option (obligation to sell) | 69,759 | $1,416,107.70 | $98.79B |
| Sale | Call option (obligation to sell) | 6,976 | $139,520.00 | $973.29M |
| Sale | Call option (obligation to sell) | 59,340 | $1,204,602.00 | $71.48B |
| Sale | Call option (obligation to sell) | 5,934 | $118,680.00 | $704.25M |
| Sale | Call option (obligation to sell) | 36,571 | $742,391.30 | $27.15B |
| Sale | Call option (obligation to sell) | 3,657 | $73,140.00 | $267.47M |
| Sale | Call option (obligation to sell) | 29,460 | $598,038.00 | $17.62B |
| Sale | Call option (obligation to sell) | 2,946 | $58,920.00 | $173.58M |
| Sale | Call option (obligation to sell) | 6,173 | $125,311.90 | $773.55M |
| Sale | Call option (obligation to sell) | 617 | $12,340.00 | $7.61M |
- Price shown as filed: $2,815,711.50 per share is far above the $137.98 close on May 6, 2026, so no transaction value is shown.
Holdings After Transaction:
Call option (obligation to sell) — 550,000 contracts (Indirect, Footnotes)
Footnotes (14)
- F1. 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 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").
- F2. 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.
- F3. 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.
- F4. These securities are held directly by CW Opportunity 2 LP.
- 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 Structured Credit Fund, LP DBA Magnetar Constellation Onshore Fund. They are not separate legal entities.
- F12. These securities are held directly by Magnetar Xing He Master Fund Ltd.
- F13. These securities are held directly by Purpose Alternative Credit Fund - F LLC.
- F14. These securities are held directly by Purpose Alternative Credit Fund - T LLC.
Key Figures
Underlying shares: 550,000 shares
Strike price 1: $190.00 per share
Strike price 2: $195.00 per share
+4 more
7 metrics
Underlying shares
550,000 shares
Total CoreWeave Class A shares tied to call options sold
Strike price 1
<money>$190.00</money> per share
Exercise price on certain call options expiring December 18, 2026
Strike price 2
<money>$195.00</money> per share
Exercise price on other call options expiring December 18, 2026
Derivative transactions
22 entries
Number of call option sale transactions reported in Form 4
Net share direction
-550,000 shares
Net-sell balance across reported derivative transactions
Transaction date
<date>May 6, 2026</date>
Date for all reported call option sale transactions
Expiry date
<date>December 18, 2026</date>
Exercise and expiration date for the reported call options
Key Terms
Call option (obligation to sell), investment adviser, pecuniary interest, ten percent owner, +1 more
5 terms
Call option (obligation to sell) financial
"security_title: Call option (obligation to sell)"
investment adviser financial
"Magnetar Financial LLC serves as the investment adviser to each of CW Opportunity 2 LP"
An investment adviser is a person or firm that professionally manages money and gives recommendations about buying, selling, or holding investments. Like a financial coach or guide, they have a legal duty to act in a client's best financial interest, so their advice, fees and potential conflicts can directly affect returns and risk — making their role important for investors who want informed, accountable help with portfolios.
pecuniary interest financial
"disclaims beneficial ownership of these shares of Common Stock, except to the extent of its or his pecuniary interest therein"
ten percent owner regulatory
"reporting person is listed with is_ten_percent_owner: 1 in the Form 4 data"
beneficial ownership regulatory
"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.
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What insider derivatives activity did Magnetar entities report for CoreWeave (CRWV)?
Magnetar-affiliated funds reported open-market sale transactions in call options referencing 550,000 CoreWeave Class A shares. These options are described as an obligation to sell and were all dated May 6, 2026, according to the Form 4 summary data provided.
What are the strike prices and maturity date of the CoreWeave call options?
The call options have exercise prices of $190.00 and $195.00 per share, with all listed options becoming exercisable and expiring on December 18, 2026. These terms apply to the call options referencing CoreWeave Class A shares.
Who actually holds the CoreWeave securities in the Magnetar Form 4 filing?
The securities are held directly by entities such as CW Opportunity 2 LP, CW Opportunity LLC and various Magnetar-branded funds. Magnetar Financial and related upstream entities act as adviser or general partner and disclaim beneficial ownership except to the extent of any pecuniary interest.
How many derivative transactions did the CoreWeave Form 4 disclose?
The Form 4 data show 22 derivative transactions in total, all coded as sales of call options. These derivative entries collectively account for 550,000 shares of underlying CoreWeave Class A stock, producing a net-sell direction in the transaction summary.
Do Magnetar and David J. Snyderman claim full beneficial ownership of these CoreWeave options?
No. The filing states that each Magnetar fund, Magnetar Financial, Magnetar Capital Partners, Supernova Management and David J. Snyderman disclaim beneficial ownership of the CoreWeave common stock, except to the extent of its or his pecuniary interest in those securities.
AI-generated analysis. How Rhea-AI works. Not financial advice.
