California Water Service (CWT) Officer Withholds Shares for Taxes After RSA Vesting

Rhea-AI Filing Summary

Kenneth G. Jenkins, Vice President, Water Resource Planning & Sustainability at California Water Service Group (CWT), reported two small disposals of common stock executed at $47.09 per share. The first disposal on 09/05/2025 surrendered 38 shares and left a beneficial ownership of 3,852 shares; the second on 09/07/2025 surrendered 29 shares and left 3,823 shares. Both transactions are reported as share withholdings to satisfy tax obligations tied to the vesting of Restricted Stock Awards granted on June 5, 2024 and March 7, 2023.

The filings indicate routine insider tax-withholding activity rather than open-market sales or transfers, and there is no indication of additional derivative transactions or changes in ownership form reported.

Positive

• Transparent disclosure of tax-withholding share surrenders related to restricted stock vesting
• Small, administrative transactions that do not materially change insider ownership or control

Negative

• None.

Insights

Corporate Governance Expert

TL;DR: Routine tax-withholding share surrenders by an officer; immaterial to shareholder control or company valuation.

The reported disposals appear to be the issuer withholding shares to satisfy tax withholding on vested Restricted Stock Awards, a common administrative action under executive compensation programs. The quantities are small relative to total outstanding shares and Jenkins retains beneficial ownership after the transactions, indicating no substantive change in alignment with shareholders. No derivative positions or additional transfers are disclosed that would alter governance or voting power.

Executive Compensation Specialist

TL;DR: Standard RSU/RSA tax-satisfaction withholding; reflects vesting events from prior award grants.

The explanation explicitly ties the share surrenders to tax obligations from RSA awards granted on June 5, 2024 and March 7, 2023. Such withholdings are typical when restricted stock vests and do not represent discretionary sales by the executive. The transactions were executed at $47.09 per share, and the remaining beneficial holdings are documented, providing transparent disclosure on compensation-related share movements.

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
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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^*

Jenkins Kenneth G

(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 Res Plan & Sustain

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		38(1)	D	$47.09	3,852	D
Common Stock	09/07/2025		F		29(2)	D	$47.09	3,823	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.

	By: /s/ Michelle R. Mortensen For: Kenneth G. Jenkins	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 Kenneth G. Jenkins report for CWT?

He reported two disposals of common stock executed at $47.09 per share: 38 shares on 09/05/2025 and 29 shares on 09/07/2025.

Why were shares surrendered in the Form 4 for CWT?

The Form 4 states the shares were withheld and surrendered to satisfy tax withholding obligations arising from the vesting of Restricted Stock Awards.

Which restricted stock grants triggered the withholdings reported in the CWT Form 4?

Withholdings related to RSA awards granted on June 5, 2024 and March 7, 2023 are cited in the filing.

How many shares did Jenkins beneficially own after the reported transactions?

After the 09/05/2025 disposition the filing reports 3,852 shares beneficially owned, and after the 09/07/2025 disposition it reports 3,823 shares.

Do these Form 4 transactions indicate any derivative holdings or option exercises for CWT insider?

No. Table II shows no derivative securities reported; the transactions disclosed are non-derivative share withholdings.