10% Owner Magnetar Reports Over $11 Trillion Derivative Sale Amidst Positive Company News
CRWV has more than doubled off its 52-week low of $33.515.
Summary
Magnetar Financial LLC, a 10% owner, reported the sale of call options with a reported underlying value of over $11 trillion, significantly reducing their exposure to CoreWeave.
Key Events · Ownership and Investor Activity · CRWV
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Massive Derivative Sale Reported
Magnetar Financial LLC, a 10% owner, reported the sale of call options with a total value of $11,417,973,409,489 on April 15, 2026.
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Significant Reduction in Holdings
The transaction involved the disposition of 2,000,000 underlying shares, representing approximately 79% of Magnetar's prior indirect holdings in CoreWeave.
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Conflicting Signal Amidst Positive News
This substantial derivative sale by a major investor occurs shortly after CoreWeave announced significant AI infrastructure agreements with Meta, Anthropic, and Jane Street, as well as a $3.5 billion convertible notes offering.
Analysis · CRWV · Technology
This Form 4 filing reports an extraordinary sale of call options by Magnetar Financial LLC, a 10% owner, with a reported total value exceeding $11 trillion. While the nature of derivative transactions can be complex, this reported value is astronomically high, far surpassing CoreWeave's market capitalization. The sale of such a large volume of call options, which obligates the seller to deliver shares, typically indicates a bearish outlook or a substantial hedging strategy by the investor. This transaction occurs amidst a period of highly positive news for CoreWeave, including major AI infrastructure agreements with Meta, Anthropic, and Jane Street, and a significant convertible notes offering. The reported scale of this derivative disposition by a major institutional investor, representing a disposition of approximately 79% of their prior holdings, presents a conflicting signal against the company's recent operational successes.
How filings like this one have moved
In the 30 days to Sep 18, 2026, 40.1% of the 367 measured filings Wiseek scored 9 moved their stock by 5% or more by the next session's close. The median move was -0.64%. These are measured outcomes after filings of this importance, not a forecast for this one.
Measured one observation per ticker per day, after exclusions. Current figures: Filing Impact Tracker · open dataset
At the time of this filing, CRWV was trading at $116.99 on NASDAQ in the Technology sector, with a market capitalization of approximately $61.4B. The 52-week trading range was $33.52 to $187.00. This filing was assessed with negative market sentiment and an importance score of 9 out of 10.