California Water Service Group (CWT) officer reports RSA tax share withholding

Rhea-AI Filing Summary

California Water Service Group officer Shawn C. Bunting, Sr. VP, GC and Business Development, reported routine share-withholding transactions related to vested restricted stock awards. On December 5, 2025, 69 shares of common stock were withheld at $44.88 per share, and on December 7, 2025, 45 shares were withheld at the same price. In both cases, the shares were surrendered to the company to cover tax withholding obligations arising from previously granted Restricted Stock (RSA) awards. After these transactions, Bunting directly beneficially owned 3,304 shares of California Water Service Group common stock.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Bunting Shawn C

Role Sr. VP, GC and Business Dev

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock	45	$44.88	$2K
Tax Withholding	Common Stock	69	$44.88	$3K

Holdings After Transaction: Common Stock — 3,304 shares (Direct)

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 June 5, 2024. 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.

Form 4 Insider Transactions: What Each Field Means →

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^*

Bunting Shawn C

(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)
	Sr. VP, GC and Business Dev

3. Date of Earliest Transaction (Month/Day/Year)
12/05/2025

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	12/05/2025		F		69(1)	D	$44.88	3,349	D
Common Stock	12/07/2025		F		45(2)	D	$44.88	3,304	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: Shawn C. Bunting	12/09/2025
	** 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 insider transaction did California Water Service Group (CWT) report?

An officer, Shawn C. Bunting, reported small routine transactions where a total of 114 shares of common stock were withheld and surrendered to cover tax obligations on vested restricted stock awards.

Who is the reporting person in this California Water Service Group (CWT) Form 4?

The reporting person is Shawn C. Bunting, who serves as Senior Vice President, General Counsel and Business Development of California Water Service Group.

On what dates did the CWT insider share-withholding transactions occur?

The reported transactions took place on December 5, 2025 and December 7, 2025.

What was the share price used for the CWT tax-withholding transactions?

Both transactions used a price of $44.88 per share for the common stock withheld to satisfy tax obligations.

How many CWT shares does the insider own after these transactions?

After the reported transactions, Shawn C. Bunting directly beneficially owned 3,304 shares of California Water Service Group common stock.

Why were California Water Service Group (CWT) shares surrendered in this Form 4?

The shares were withheld and surrendered to the issuer to satisfy tax withholding obligations tied to the vesting of Restricted Stock (RSA) awards granted on June 5, 2024 and March 7, 2023.