California Water (NYSE: CWT) VP reports 101 shares withheld to cover RSA taxes

Rhea-AI Filing Summary

California Water Service Group vice president James Sophie Marwieh reported routine tax-related share dispositions. On June 4 and June 5, 2026, a total of 101 shares of common stock were withheld and surrendered to the company to cover tax obligations arising from the vesting of Restricted Stock Awards granted in 2024 and 2025. These are not open-market sales. After these transactions, Marwieh directly holds 8,321.196 shares of common stock, including shares acquired through the Employee Stock Purchase Program.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider James Sophie Marwieh

Role VP Water Qual

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock	50	$45.82	$2K
Tax Withholding	Common Stock	51	$45.24	$2K

Holdings After Transaction: Common Stock — 8,321.196 shares (Direct, null)

Footnotes (1)

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 March 4,2025 Includes shares acquired through the Employee Stock Purchase Program (ESPP). 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.

Key Figures

Tax-withheld shares total: 101 shares Shares withheld on 2026-06-04: 51 shares at $45.24 Shares withheld on 2026-06-05: 50 shares at $45.82 +1 more

4 metrics

Tax-withheld shares total 101 shares Shares withheld to satisfy tax obligations from RSA vesting

Shares withheld on 2026-06-04 51 shares at $45.24 Tax-withholding disposition of common stock

Shares withheld on 2026-06-05 50 shares at $45.82 Tax-withholding disposition of common stock

Shares held after 2026-06-05 8,321.196 shares Direct common stock holdings following tax withholdings

Key Terms

Restricted Stock (RSA) Award, Employee Stock Purchase Program (ESPP), tax withholding obligations

3 terms

Restricted Stock (RSA) Award financial

"in connection with the vesting of Restricted Stock (RSA) Award granted on March 4,2025"

Employee Stock Purchase Program (ESPP) financial

"Includes shares acquired through the Employee Stock Purchase Program (ESPP)."

tax withholding obligations financial

"to satisfy the tax withholding obligations that arose in connection with the vesting of Restricted Stock"

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 06/08/2026 - 05:24 PM Accepted by SEC EDGAR 06/08/2026 - 05:23 PM Learn about SEC filing dates

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 CALIFORNIA 95112

(City) (State) (Zip)

UNITED STATES

(Country)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/04/2026

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

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

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

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	06/04/2026		F		51(1)	D	$45.24	8,371.196(2)	D
Common Stock	06/05/2026		F		50(3)	D	$45.82	8,321.196	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 March 4,2025

2. Includes shares acquired through the Employee Stock Purchase Program (ESPP).

3. 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.

	By: /s/ Michelle R. Mortensen For: Sophie M James	06/08/2026
	** 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.
* Form 4: SEC 1474 (03-26)

FAQ

What did CWT executive James Sophie Marwieh report in this Form 4?

James Sophie Marwieh reported tax-related dispositions of California Water Service Group common stock. A total of 101 shares were withheld and surrendered to the issuer to satisfy tax obligations from vesting Restricted Stock Awards, rather than being sold on the open market.

How many CWT shares were withheld for taxes in Marwieh’s transactions?

A total of 101 CWT common shares were withheld for taxes. The transactions covered 51 shares at $45.24 per share and 50 shares at $45.82 per share, satisfying tax obligations from Restricted Stock Awards vesting in 2024 and 2025.

Are these CWT Form 4 transactions open-market sales or tax withholdings?

These Form 4 transactions are tax withholdings, not open-market sales. The company withheld and received the shares to satisfy Marwieh’s tax obligations triggered by vesting Restricted Stock Awards, as described in the filing’s footnotes.

How many California Water Service Group shares does Marwieh hold after these transactions?

After the tax-withholding dispositions, Marwieh holds 8,321.196 CWT common shares directly. This post-transaction balance includes shares acquired through the Employee Stock Purchase Program, as noted in the filing’s footnotes.

What awards caused the tax obligations in this CWT Form 4 filing?

The tax obligations arose from the vesting of Restricted Stock (RSA) Awards. One award was granted on June 5, 2024, and another on March 4, 2025, leading to the share withholdings reported in this Form 4.