Form 4 Filing for Todd Kenneth Peters

Todd Kenneth Peters, Vice President of Engineering at CALIFORNIA WATER SERVICE GROUP (CWT), reported the disposition of 40 shares of Common Stock on June 4, 2026, for $45.24 per share, and another 40 shares on June 5, 2026, for $45.82 per share. These dispositions were made to satisfy tax withholding obligations related to the vesting of Restricted Stock Awards. Following these transactions, Mr. Peters owns 8,340 shares of Common Stock directly.