Magnetar Financial LLC

Magnetar Financial (10% owner) sold 112,111 shares of CRWV for $14.6M on 2026-06-02; prior CRWV sells all well-timed (5/5), yet company unprofitable (-$740.0M net income).

Magnetar Financial executed 18 separate sales totaling 112,111 shares for $14,636,919.32, reducing its stake from 785,044 to 672,933 shares (-14.3%). This liquidation occurred at a blended average price of $130.56, now trading 40.7% below its 52-week high and down 11.6% in the prior 30 days. The insider's track record at CoreWeave itself is striking: all 5 prior sales at CRWV (on 2026-05-07) were well-timed at the 90-day mark, with returns ranging from -8.1% to -10.3%—every sale preceded further declines. Against this backdrop of consistent predictive accuracy at this ticker, the current sale pattern warrants attention given the company's unprofitability ($-740,000,000.00 net income over its most recent fiscal year) and the sharp recent momentum shift. The seller's demonstrated ability to exit before downturns, combined with deteriorating fundamentals, suggests the liquidation may signal anticipated further pressure.

Magnetar Financial, a 10% owner, sells 159,168 shares of CoreWeave for ~$20.7M in large portfolio liquidation on single day.

Magnetar Financial, an institutional investor holding 10% of CoreWeave, executed a substantial single-day liquidation of shares across 15 transactions totaling roughly $20.7 million. This is portfolio management activity by a fund, not insider knowledge, but the sheer size warrants context: the sale occurred while CoreWeave stock was trading well below its 52-week high despite significant recent gains. The company itself remains unprofitable on a reported basis, posting a substantial net loss on an annual basis, though revenue growth has been extraordinary. Magnetar's track record at CoreWeave consists entirely of prior sales with no available outcome data yet, so we cannot determine whether this fund has successfully timed exits in this stock previously. The fund has sold shares three separate times in the past week alone, suggesting a deliberate and steady reduction of its CoreWeave position rather than a one-time rebalancing event.

Magnetar Financial (10% owner) sells ~587k shares of CRWV for $76.3M in single-day execution.

Magnetar Financial, a beneficial owner holding roughly 10% of CoreWeave, executed a large single-day liquidation on May 7, 2026, selling approximately 587,000 shares across 30 tranches for roughly $76.3 million. This represents portfolio activity by an institutional holder rather than insider conviction — Magnetar is filing due to ownership size, not operational knowledge. The timing of the sale is notable: CoreWeave's stock had surged significantly in the prior months (up approximately 59% in 30 days and 72% in 90 days) before trading roughly 30% below its 52-week high at the time of sale. The company itself remains unprofitable with substantial operating losses, though revenue has grown sharply. Magnetar's prior trading history at this stock shows five recent sales, all too recent to measure outcomes, suggesting the fund has been consistently reducing its position. Without measurable timing data on the prior five sales, it remains unclear whether this pattern reflects successful tactical exits or whether the fund is chasing the stock lower after missing the bulk of the recent rally.

Magnetar Financial, a 10% owner, sells $109M in CRWV shares on single trading day as stock trades below 52-week highs amid unprofitable fundamentals.

Magnetar Financial, as a 10% beneficial owner, disposed of nearly 798,000 shares in a single session, realizing approximately $109 million in proceeds. This is a large portfolio adjustment from an institutional holder, not an insider with direct operational knowledge. The stock is currently trading well below its 52-week high and has experienced significant gains over the past quarter, yet CoreWeave remains unprofitable on an annual basis despite strong revenue growth. Magnetar's prior sales at this ticker are too recent to evaluate for timing—five prior sales from early May are marked with outcomes not yet available—so there is no track record to assess whether this fund has successfully timed its CRWV exits. The sheer transaction volume (24 distinct sales across a range of prices) and the single-day execution suggest systematic portfolio rebalancing rather than a targeted directional bet, though the financial picture of a loss-making company combined with valuation levels below the 52-week high creates an ambiguous backdrop for evaluating whether this is opportunistic selling or a gradual reduction of a large stake.

Magnetar Financial (10% owner) sells 1.2M shares in 29 tranches; stock down from highs, company unprofitable.

Magnetar Financial, a beneficial owner holding 10% of CoreWeave, executed a large dispositive trade on a single day, selling over 1.2 million shares across 29 separate transactions totaling $164 million. As an institutional holder rather than an officer or director, this activity reflects portfolio management decisions, not insider knowledge of company operations. The timing is notable: CoreWeave trades well below its 52-week high and the company remains unprofitable despite strong revenue growth, suggesting Magnetar may be taking advantage of a risen stock price to trim an outsized position. Magnetar's prior trading history at this ticker consists entirely of sales, all too recent to evaluate outcomes yet, though the pattern of repeat selling by this 10% holder warrants monitoring. Without comparative context from other major shareholders or officers, this appears to be a straightforward institutional rebalancing rather than a material signal about company fundamentals.

Magnetar Financial liquidates significant stake in CoreWeave as stock recovers from depressed levels.

Magnetar Financial, a 10% beneficial owner of CoreWeave, executed a large portfolio liquidation on a single trading day, divesting hundreds of thousands of shares across 28 separate transactions as the stock recovered sharply from recent lows. The magnitude and methodical structure of this sale—spreading the shares across multiple price points within the same day—is consistent with a fund managing a large reduction while minimizing market impact, not an insider betting against the company's direction. This trade follows five consecutive sales the fund made just days prior, establishing a clear pattern of systematic position reduction. What makes this significant is the timing: CoreWeave remains unprofitable despite extraordinary revenue growth, and Magnetar's history shows twenty prior sales and zero purchases in this stock, indicating the fund has been consistently exiting its position rather than showing conviction. The stock has recovered substantially from recent lows but still trades well below its peak valuation, giving Magnetar a window to reduce exposure without accepting heavily depressed prices. For retail investors, this represents institutional portfolio rebalancing, not a vote of no-confidence by someone with operational knowledge of the business—but the cumulative pattern of selling into strength warrants attention to whether Magnetar sees valuation headwinds ahead.

Magnetar Financial, a 10% owner, sold 418K shares across multiple tranches on single trading day.

Magnetar Financial, a significant 10% beneficial owner of CoreWeave, executed a substantial block sale of shares on a single day, offloading roughly four percent of its total holdings. This is a portfolio-level decision by an institutional holder, not an insider with operational knowledge — Magnetar's prior trading history in this stock shows five consecutive sell transactions just three trading days earlier, indicating ongoing portfolio rebalancing rather than a response to material non-public information. The timing is notable: CoreWeave is unprofitable with significant operating losses, yet the stock has climbed sharply in recent weeks before this sale. Magnetar's institutional selling into this rally suggests the fund is reducing exposure while valuations appear stretched, a common institutional practice to lock in gains on volatile growth stocks. Without return data on the prior sales from May 1st, it's unclear whether this fund has benefited from previous exits, but the repeat selling pattern points to disciplined portfolio management during a period of strong share-price momentum.

Magnetar Financial sells $147M in CRWV shares in single trading day; 10% owner with 20-trade history of sells only.

Magnetar Financial, a 10% institutional owner of CoreWeave, executed a large sale totaling approximately $147 million across 28 separate transactions on a single day, with the stock trading well below its highs after a significant recent pullback. The trading history reveals this is not an isolated exit—Magnetar has sold CoreWeave shares exclusively for the past five recorded transactions, most recently just days before this filing, suggesting a consistent pattern of reducing exposure rather than maintaining confidence in the company. The underlying business remains unprofitable with substantial net losses, despite strong revenue growth, which may explain why an institutional holder is systematically trimming rather than adding to its position. While the sale magnitude triggers regulatory thresholds, the lack of any prior purchases and the mechanical nature of the transaction pattern—nearly identical share quantities across multiple price points on the same day—indicates this is portfolio rebalancing driven by ownership concentration targets, not a signal of executive conviction or operational concern about the company's prospects.

Magnetar Financial, a 10% institutional holder, sold 349K shares worth $44.6M in structured trades on May 5.

Magnetar Financial, an investment fund holding over 10% of CoreWeave, executed a large portfolio reduction on a single day, disposing of approximately 349,000 shares across 16 separate transactions totaling $44.6 million. This sale volume represents less than 9% of the fund's overall position, suggesting a modest rebalancing rather than a fundamental exit from the company. The timing is notable: CoreWeave shares are currently trading well below their 52-week high and have gained modestly over the past three months, yet the stock is deeply unprofitable with significant net losses despite strong revenue growth. Magnetar's prior sales at this ticker have all been well-timed in hindsight, with the stock declining after each of those exits, suggesting the fund has demonstrated sound judgment about CoreWeave's valuation in the past. However, this sale carries limited conviction signal because institutional holders regularly adjust positions for portfolio management reasons unrelated to company outlook—the fund's history of selling into strength at this particular stock is observable, but does not reveal whether this latest reduction reflects reassessment of CoreWeave's fundamentals or simply routine portfolio mechanics.

Magnetar Financial dumps ~984k shares across 27 tranches on single day, totaling $154M as CoreWeave trades well below recent highs.

Magnetar Financial, a significant 10% institutional holder of CoreWeave, executed a large coordinated sale of nearly 984,000 shares in one trading session for approximately $154 million. This is a portfolio liquidation by an investment fund, not insider trading based on operational knowledge. The sales occurred across 27 separate tranches at prices clustered around $119–$121 per share, suggesting algorithmic execution to manage market impact. The timing is notable: CoreWeave's stock is currently trading well below its recent highs and has experienced sharp volatility, with the company burning cash and reporting significant operating losses despite strong revenue growth. Magnetar's exit may reflect the fund's rebalancing or profit-taking given the stock's valuation uncertainty in the context of unprofitable operations and near-term cash burn risk.