California Water exec has 147 shares withheld for tax

CWT’s SVP had small amounts of stock withheld to cover taxes on prior restricted stock vesting, not as open-market sales.

Rhea-AI Filing Summary

CALIFORNIA WATER SERVICE GROUP (CWT) reported that executive Dean Shannon C, Senior Vice President, Customer Service & Chief Sustainability Officer, had a total of 147 shares of common stock withheld on September 4 and 5, 2026, to satisfy tax withholding obligations arising from vesting Restricted Stock Awards granted in June 2024 and March 2025. These dispositions were reported as shares delivered or withheld for tax payments, and no Rule 10b5-1 trading plan is reported.

Insider Trade Summary

Tax Withholding: 147 shares

Tax Withholding 2 txns

Insider Dean Shannon C

Role SVP, Cust Svc & Chief Sust Of

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock F3	72	$50.03	$4K
Tax Withholding	Common Stock F1, F2	75	$50.03	$4K

Holdings After Transaction: Common Stock — 23,612.681 shares (Direct)

Footnotes (3)

1. 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 March 4,2025
2. F2. Includes shares acquired through the Employee Stock Purchase Program (ESPP).
3. F3. 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

Shares withheld for taxes on Sept. 4, 2026: 75 shares Shares withheld for taxes on Sept. 5, 2026: 72 shares Total shares withheld for tax liability: 147 shares +3 more

6 metrics

Shares withheld for taxes on Sept. 4, 2026 75 shares Common stock withheld to satisfy tax withholding obligations from RSA granted March 4, 2025

Shares withheld for taxes on Sept. 5, 2026 72 shares Common stock withheld to satisfy tax withholding obligations from RSA granted June 5, 2024

Total shares withheld for tax liability 147 shares Aggregate of two code F transactions reported for September 4 and 5, 2026

Reference price per share $50.03 per share Price used for both tax-withholding dispositions of common stock

RSA grant date (first award) March 4, 2025 Restricted Stock (RSA) Award whose vesting created the Sept. 4, 2026 tax obligation

RSA grant date (second award) June 5, 2024 Restricted Stock (RSA) Award whose vesting created the Sept. 5, 2026 tax obligation

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"

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"

FAQ

What insider activity did CWT report for executive Dean Shannon C on this Form 4?

CWT reported that Dean Shannon C had 147 shares of common stock withheld on September 4 and 5, 2026, as payment of tax liabilities tied to vesting Restricted Stock Awards, rather than as open-market sales.

How many CWT (CWT) shares were involved in the September 4, 2026 transaction?

On September 4, 2026, 75 shares of CWT common stock were withheld at a reference price of $50.03 per share to satisfy tax withholding obligations from a Restricted Stock (RSA) Award granted on March 4, 2025.

How many CWT (CWT) shares were involved in the September 5, 2026 transaction?

On September 5, 2026, 72 shares of CWT common stock were withheld at a reference price of $50.03 per share to satisfy tax withholding obligations from a Restricted Stock (RSA) Award granted on June 5, 2024.

Were the CWT insider transactions made under a Rule 10b5-1 trading plan?

No. The filing’s Rule 10b5-1 checkbox is not marked as affirming such a plan, and the footnotes describe the events as shares withheld and surrendered to satisfy tax withholding obligations on Restricted Stock Awards.

Do the reported CWT transactions involve the Employee Stock Purchase Program (ESPP)?

Yes. A footnote states that the reporting person’s holdings include shares acquired through the Employee Stock Purchase Program (ESPP), although the September 4 and 5, 2026 transactions themselves relate to tax withholding on Restricted Stock Awards.

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Available on EDGAR 09/08/2026 - 04:12 PM Accepted by SEC EDGAR 09/08/2026 - 04:11 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^*

Dean Shannon C

(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)
	SVP, Cust Svc & Chief Sust Of

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/04/2026

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	09/04/2026		F		75(1)	D	$50.03	23,684.681(2)	D
Common Stock	09/05/2026		F		72(3)	D	$50.03	23,612.681	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: Shannon C Dean	09/08/2026
	** 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)