Magnetar Financial LLC 4

What Happened
Magnetar Financial LLC (reported as a 10% owner through various Magnetar funds) disposed of a total of 200,000 shares of CoreWeave, Inc. (CRWV) on June 22, 2026. The disposals were the settlement of a variable prepaid forward contract entered October 8, 2025; because the June 18, 2026 settlement price ($117.95) was below the contract floor ($120.00), the entity delivered all pledged shares. The Form 4 reports these as "other acquisition or disposition (J)" and derivative-related disposals with $0 per-share price reported; using the $117.95 settlement price, the delivered shares equate to about $23.59 million in market value.

Key Details

• Transaction date: June 22, 2026 (settlement determined using June 18, 2026 Nasdaq close = $117.95).
• Shares transferred: 200,000 total (multiple lots documented across several Magnetar funds).
• Reported price on filing: $0.00 for the derivative entries (these reflect settlement of a variable prepaid forward, not an open-market sale).
• Approximate market value at settlement-price: 200,000 × $117.95 ≈ $23.59M.
• Who held the shares: held directly by various Magnetar funds (see filing footnotes — e.g., Magnetar Constellation Master Fund, Magnetar Lake Credit Fund, Magnetar Longhorn Fund, Magnetar SC Fund, others). Magnetar Financial serves as adviser to those funds and disclaims beneficial ownership except for any pecuniary interest.
• Relevant footnotes: contract entered 10/08/2025; number of shares deliverable was formula-based (floor/cap), and because settlement price ≤ floor the entity delivered all pledged shares; filing indicates the pledged shares were transferred to the counterparty.
• Filing date: Form 4 filed June 23, 2026 (timely per standard insider-reporting windows).

Context
This was a settlement of a derivative arrangement (variable prepaid forward), not a simple open-market sale by an executive. Variable prepaid forward settlements are contractual dispositions tied to prior financing/prepayment arrangements and are commonly used by large holders to monetize positions; they do not by themselves indicate insider sentiment about the company.