California Water Service Insider Withholds 74 Shares for Taxes; Ownership 6,595.065

Rhea-AI Filing Summary

Insider sales to satisfy tax withholding for vested restricted stock awards. Sophie M. James, Vice President of Water Quality & Environmental Affairs at California Water Service Group (CWT), reported two small disposals of common stock at $47.09 per share. On 09/05/2025 she surrendered 50 shares and on 09/07/2025 she surrendered 24 shares to cover tax withholding arising from RSAs that vested on June 5, 2024 and March 7, 2023, respectively. After these transactions she beneficially owned 6,595.065 shares, which includes shares acquired through the company Employee Stock Purchase Program. The Form 4 was signed on 09/09/2025.

Insights

Securities Analyst

TL;DR: Routine tax-withholding share surrenders after RSA vesting; immaterial to company valuation.

The reported disposals are listed as transaction code F indicating shares were withheld and surrendered to satisfy tax withholding on vested restricted stock awards. The sizes are small (50 and 24 shares) and executed at $47.09 per share, reducing beneficial ownership to 6,595.065 shares. Including Employee Stock Purchase Program shares suggests ongoing participation in company equity programs. There is no indication these were open-market sales or signals of change in insider confidence. Impact on float and investor perception is minimal.

Corporate Governance Expert

TL;DR: Proper disclosure of withholding for RSAs; consistent with standard executive compensation practices.

The Form 4 discloses that the transactions correspond to tax withholding for RSAs granted on specific prior dates. The use of Code F and the explanatory footnotes align with SEC reporting norms. The filing appears timely and properly signed by an authorized filer. From a governance perspective, these entries reflect routine administration of equity awards rather than discretionary insider selling.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

James Sophie Marwieh

(Last) (First) (Middle)

1720 NORTH FIRST STREET

(Street)

SAN JOSE CA 95112

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
CALIFORNIA WATER SERVICE GROUP [ CWT ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	VP Water Qual & Envir Affairs

3. Date of Earliest Transaction (Month/Day/Year)
09/05/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	09/05/2025		F		50(1)	D	$47.09	6,619.065	D
Common Stock	09/07/2025		F		24(2)	D	$47.09	6,595.065(3)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. 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.

2. 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.

3. Includes shares acquired through the Employee Stock Purchase Program.

	By: /s/ Michelle R. Mortensen For: Sophie M. James	09/09/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What transactions did Sophie M. James report on the Form 4 for CWT?

She reported surrendering 50 shares on 09/05/2025 and 24 shares on 09/07/2025, both at $47.09 per share.

Why were the shares disposed of according to the filing?

The filing states the shares were withheld and surrendered to satisfy tax withholding obligations arising from vested Restricted Stock Awards granted on June 5, 2024 and March 7, 2023.

How many shares does the reporting person beneficially own after the transactions?

The Form 4 reports 6,595.065 shares beneficially owned following the reported transactions.

Do the transactions reflect open-market sales?

No. The transactions are reported with Code F, indicating shares were surrendered to the issuer to satisfy tax obligations rather than open-market sales.

When was the Form 4 signed and filed?

The Form 4 includes a signature block dated 09/09/2025.