CoreWeave: principal accounting officer Jeff Baker sold 5 shares

What happened Jeff Baker, principal accounting officer, sold 5 shares in an open-market transaction on Sep 30, 2026 at $87.69 per share for $438. The Form 4 also reports the exercise or conversion of 8 restricted stock units (RSUs) on Sep 30, 2026.

Key details

• Transaction date(s) and price(s): Sep 30, 2026 — 5 shares sold at $87.69 each for $438; 8 shares reported as exercised/converted (price N/A).
• Shares owned after the transaction: not stated in the filing.
• Relevant footnotes: F1 (each RSU converts to 1 share on settlement); F2 (the 5 shares sold were sold to satisfy tax withholding related to RSU vesting/settlement); F3 (vesting schedule: 1/4 vested Mar 31, 2026 and 1/16 vesting each quarter-end thereafter, subject to continued service); F4 (RSUs do not expire).
• Filing date: Oct 2, 2026 (the Form 4 reports the Sep 30, 2026 transactions).

Why it may matter

• The filing shows settlement/conversion of RSUs (derivative exercise) and a contemporaneous sale of 5 shares to satisfy tax withholding rather than a market purchase or gift.
• The sale is reported as an open-market sale and is linked in the footnotes to tax withholding from RSU vesting.
• A filing does not show why the insider traded or why the company acted.