Form 4 Filing for NorthWestern Energy Group, Inc. - Insider Transaction

Linda G. Sullivan, a director at NorthWestern Energy Group, Inc., acquired 834 shares of common stock on April 7, 2026, through a stock grant under the company's compensation schedule for non-employee directors. The shares were acquired at a price of $65.94 per share. Following this transaction, Ms. Sullivan owns 33,650 shares of common stock. The filing also notes that shares acquired through dividend reinvestment are included in the post-transaction holdings. This transaction is classified as an insider transaction and does not involve any derivative securities.