Affiliates of Magnetar moved a substantial block of CoreWeave, Inc. Class A common stock on April 15, 2026, according to regulatory filings. The combined sales by Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC and Snyderman David J. amounted to $309,022,617.
The filings indicate the transactions occurred at prices that varied. One summary put the overall sale prices between $117.79 and $119.34, while further detail in the filings identifies tranches executed at three discrete bands: $117.06 to $118.00; $118.20 to $119.11; and $119.20 to $119.50.
CoreWeave shares have appreciated markedly over the past year, increasing roughly 199% over that period. At the time of the filing disclosure, the stock was quoted at $116.85, which the notice says is slightly below InvestingPro's Fair Value estimate. The filings also point investors to a Pro Research Report available through InvestingPro for a deeper analysis of CoreWeave's valuation and growth prospects.
Who sold and how the holdings are structured
The seller group is composed of several Magnetar-related entities. Magnetar Financial serves as the investment adviser to multiple Magnetar funds; Magnetar Capital Partners is listed as the sole member and parent holding company of Magnetar Financial; Supernova Management LLC is identified as the general partner of Magnetar Capital Partners; and David J. Snyderman is named as the administrative manager of Supernova Management.
The filings include a legal disclaimer stating that the entities and Mr. Snyderman disclaim beneficial ownership of the shares except to the extent of their pecuniary interest. The shares themselves are reported to be held directly by a set of funds and vehicles: CW Opportunity LLC, CW Opportunity 2 LP, Magnetar Capital Master Fund, Ltd, Magnetar Constellation Master Fund, Ltd, Magnetar Longhorn Fund LP, Magnetar SC Fund Ltd, the general partner of Magnetar Structured Credit Fund, LP, and the manager of Magnetar Alpha Star Fund LLC and Magnetar Lake Credit Fund LLC.
Corporate developments at CoreWeave noted in filings
The filings accompany a cluster of recent items related to CoreWeave's financing and commercial activity. CoreWeave reported a $6 billion agreement with Jane Street under which Jane Street will utilize the company’s compute capacity across multiple facilities. As part of the same development, Jane Street is investing $1 billion in CoreWeave at $109 per share, a transaction that equates to approximately 9.17 million shares.
Following the Jane Street announcement, several brokerages and research firms adjusted their recommendations and targets. Cantor Fitzgerald raised its price target for CoreWeave to $156 and maintained an Overweight rating. Evercore ISI increased its target to $150 from $120 while retaining an Outperform rating. Wolfe Research initiated coverage with an Outperform rating and a $150 price target, citing CoreWeave’s position in the neocloud market.
Separately, CoreWeave priced a private offering of $1 billion in senior notes due 2031 with a 9.750% interest rate. The filings indicate these notes will be guaranteed on a senior unsecured basis by certain wholly-owned subsidiaries and that the offering is expected to close on April 21, 2026, subject to customary closing conditions.
Context and implications
The Magnetar disclosures document a significant one-day liquidation of CoreWeave stock across a set of affiliated funds and vehicles. The transactions were executed across multiple price points within a fairly narrow band, and the sales come amid material financing and commercial announcements from CoreWeave. The filings also clarify legal ownership and the nature of the Magnetar entities’ interests in the shares.
Investors seeking in-depth valuation and growth analysis are directed in the filings to the InvestingPro Pro Research Report available for this and more than 1,400 other U.S. equities.