| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Snow Lester A | Director | C/O CALIFORNIA WATER SERVICE GROUP, SAN JOSE | /s/ Michelle R. Mortensen on behalf of Lester A. Snow | 13 Jun 2025 | 0001513841 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | CWT | Common Stock | Sale | $55,812 | -1,200 | -4.4% | $46.51 | 26,349 | 12 Jun 2025 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | This transaction was executed in multiple trades at prices ranging from $46.5045 to 45.61. The price reported above reflects the average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. |