Form 4: Magnetar-Linked Entities Sell CoreWeave Shares, Retain Large Holdings
Rhea-AI Filing Summary
Magnetar-related reporting persons disclosed multiple sales of CoreWeave, Inc. (CRWV) Class A common stock on 09/17/2025. The Form 4 lists numerous dispositions executed at weighted-average prices in several ranges (approximately $118.50–$121.50 per share), with individual line items showing sales from 1,218 shares up to 206,824 shares. Post-transaction beneficial ownership figures appear throughout the filing, with several indirect holdings reported in the millions of shares (examples include 28,251,939, 11,178,750 and 9,531,882 shares). Footnotes explain the reporting chain: Magnetar Financial LLC is adviser to multiple Magnetar funds, Magnetar Capital Partners LP is the sole member of Magnetar Financial, Supernova Management LLC is the general partner, and David J. Snyderman is manager; each disclaims beneficial ownership except for pecuniary interest. The transactions were signed by an attorney-in-fact on behalf of the reporting parties.
Positive
- Detailed disclosure of multiple transactions including weighted-average price ranges and post-transaction ownership balances
- Clear attribution of reporting chain (Magnetar Funds, Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC, David J. Snyderman) with disclaimers
- Signed and dated filings with attorney-in-fact attestations, indicating procedural compliance
Negative
- Large aggregate dispositions reported on a single day (multiple lines show six-figure share sales), which may be viewed negatively by some investors
- Form does not disclose the aggregate total number of shares sold across all line items in a single summary figure
Insights
TL;DR Multiple large, disclosed sales by Magnetar-affiliated entities on 09/17/2025 at prices near $119–$121 per share; substantial indirect holdings remain.
The filing documents an extensive set of dispositions of Class A common stock executed the same day across many accounts managed or affiliated with Magnetar. Weighted-average prices and ranges are provided in footnotes, and the post-sale beneficial ownership balances shown in the table indicate the reporting group continues to hold material indirect positions in CRWV. For analysts, the key facts are the transaction date, price ranges, and the retained indirect holdings reported in the millions of shares; the filing is a compliance disclosure rather than an explanatory statement of strategy.
TL;DR Form 4 properly discloses insider-related sales and the reporting structure; filings include clear attribution and disclaimers.
The Form 4 includes detailed footnotes clarifying the relationship among entities (adviser, parent, general partner, manager) and states disclaimers of beneficial ownership except for pecuniary interest, meeting standard disclosure practices. The signature block shows an attorney-in-fact executed the filing. From a governance perspective, the filing is thorough on attribution and pricing transparency, with weighted-average price ranges and offer to provide transaction-level details upon request.
Insider Trade Summary
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Sale | Class A Common Stock | 18,457 | $118.96 | $2.20M |
| Sale | Class A Common Stock | 45,850 | $119.87 | $5.50M |
| Sale | Class A Common Stock | 29,443 | $121.00 | $3.56M |
| Sale | Class A Common Stock | 4,556 | $121.50 | $554K |
| Sale | Class A Common Stock | 89,695 | $119.06 | $10.68M |
| Sale | Class A Common Stock | 206,824 | $119.97 | $24.81M |
| Sale | Class A Common Stock | 110,398 | $121.17 | $13.38M |
| Sale | Class A Common Stock | 11,761 | $119.06 | $1.40M |
| Sale | Class A Common Stock | 27,115 | $119.97 | $3.25M |
| Sale | Class A Common Stock | 14,473 | $121.17 | $1.75M |
| Sale | Class A Common Stock | 1,218 | $119.06 | $145K |
| Sale | Class A Common Stock | 2,805 | $119.97 | $337K |
| Sale | Class A Common Stock | 1,497 | $121.17 | $181K |
| Sale | Class A Common Stock | 26,217 | $119.06 | $3.12M |
| Sale | Class A Common Stock | 60,445 | $119.97 | $7.25M |
| Sale | Class A Common Stock | 32,265 | $121.17 | $3.91M |
| Sale | Class A Common Stock | 35,993 | $119.06 | $4.29M |
| Sale | Class A Common Stock | 82,986 | $119.97 | $9.96M |
| Sale | Class A Common Stock | 44,297 | $121.17 | $5.37M |
| Sale | Class A Common Stock | 45,109 | $119.06 | $5.37M |
| Sale | Class A Common Stock | 104,020 | $119.97 | $12.48M |
| Sale | Class A Common Stock | 55,525 | $121.17 | $6.73M |
| Sale | Class A Common Stock | 10,192 | $119.06 | $1.21M |
| Sale | Class A Common Stock | 23,500 | $119.97 | $2.82M |
| Sale | Class A Common Stock | 12,544 | $121.17 | $1.52M |
| Sale | Class A Common Stock | 38,376 | $119.06 | $4.57M |
| Sale | Class A Common Stock | 88,484 | $119.97 | $10.62M |
| Sale | Class A Common Stock | 47,232 | $121.17 | $5.72M |
Footnotes (1)
- The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $118.50 to $119.49, inclusive. The reporting person undertakes to provide to CoreWeave, Inc. (the "Issuer"), any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote and in footnotes 2, 3, 4, 5 and 6. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $119.50 to $120.24, inclusive. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $120.50 to $121.46, inclusive. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $118.75 to $119.50, inclusive. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $119.75 to $120.51, inclusive. The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $120.95 to $121.50, inclusive. Magnetar Financial LLC ("Magnetar Financial") serves as the investment adviser to each of 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 (collectively, the "Magnetar Funds"). 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 manager of Supernova Management is David J. Snyderman, a citizen of the United States of America. 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. These securities are held directly by CW Opportunity 2 LP. These securities are held directly by CW Opportunity LLC. These securities are held directly by Magnetar Alpha Star Fund LLC. These securities are held directly by Magnetar Capital Master Fund, Ltd. These securities are held directly by Magnetar Constellation Master Fund, Ltd. These securities are held directly by Magnetar Lake Credit Fund LLC. These securities are held directly by Magnetar Longhorn Fund LP. These securities are held directly by Magnetar SC Fund Ltd. These securities are held directly by Magnetar Structured Credit Fund, LP.