Michael S. Mares - 05 Dec 2025 Form 4 Insider Report for CALIFORNIA WATER SERVICE GROUP (CWT)

Role
SVP Operations
Signature
By: /s/ Michelle R. Mortensen For: Michael S. Mares
Issuer symbol
CWT
Transactions as of
05 Dec 2025
Transactions value $
-$5,386
Form type
4
Filing time
09 Dec 2025, 16:58:38
Previous filing
09 Sep 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Mares Michael S JR SVP Operations 1720 NORTH FIRST STREET, SAN JOSE By: /s/ Michelle R. Mortensen For: Michael S. Mares 2025-12-09 0001763820

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction CWT Common Stock Tax liability -$3.01K -67 -0.62% $44.88 10.8K 05 Dec 2025 Direct F1
transaction CWT Common Stock Tax liability -$2.38K -53 -0.49% $44.88 10.7K 07 Dec 2025 Direct F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Represents the number of shares withheld and surrendered to the issuer to satisfy the tax withholding obligations that arose in connection with the vesting of Restricted Stock (RSA) Award granted on June 5, 2024.
F2 Represents the number of shares withheld and surrendered to the issuer to satisfy the tax withholding obligations that arose in connection with the vesting of Restricted Stock (RSA) Award granted on March 7, 2023.