Form 4 Filing for Thomas M. Krummel - Officer/Director Transaction

This filing details a transaction by Thomas M. Krummel, a director at CALIFORNIA WATER SERVICE GROUP. On May 21, 2026, Mr. Krummel disposed of 3,700 shares of Common Stock at a weighted average price of $43.3012 per share. Following this transaction, Mr. Krummel directly owns 23,805 shares of the company's stock. The filing includes an undertaking from the reporting person to provide full information regarding the number of shares and prices at which the transaction was effected, upon request from the SEC staff, the issuer, or a security holder.