California Water VP has 102 shares withheld for tax

Rhea-AI Filing Summary

CALIFORNIA WATER SERVICE GROUP (CWT) reports that officer Kenneth G. Jenkins, Vice President of Water Resources Planning & Sustainability, disposed of common shares back to the issuer to cover tax withholding obligations arising from the vesting of previously granted Restricted Stock (RSA) awards. On September 4, 2026, 64 shares were withheld at a reference value of $50.03 per share, tied to an RSA granted on March 4, 2025, and on September 5, 2026, 38 shares were withheld at $50.03 per share, tied to an RSA granted on June 5, 2024. These are not open-market purchases or sales, and no Rule 10b5-1 trading plan is reported.

Insider Trade Summary

Tax Withholding: 102 shares

Tax Withholding 2 txns

Insider Jenkins Kenneth G

Role VP Water Res Plan & Sustain

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock F2	38	$50.03	$2K
Tax Withholding	Common Stock F1	64	$50.03	$3K

Holdings After Transaction: Common Stock — 5,125.854 shares (Direct)

Footnotes (2)

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. 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 surrendered for tax withholding (September 4, 2026): 64 shares Shares surrendered for tax withholding (September 5, 2026): 38 shares Total shares surrendered for tax withholding: 102 shares +1 more

4 metrics

Shares surrendered for tax withholding (September 4, 2026) 64 shares Common stock withheld and surrendered to issuer for tax withholding on RSA granted March 4, 2025

Shares surrendered for tax withholding (September 5, 2026) 38 shares Common stock withheld and surrendered to issuer for tax withholding on RSA granted June 5, 2024

Total shares surrendered for tax withholding 102 shares Aggregate across both September 4 and 5, 2026 tax-withholding dispositions

Reference price per share for withheld shares $50.03 per share Used for both September 4 and 5, 2026 tax-withholding dispositions

Key Terms

Restricted Stock (RSA) Award, tax withholding obligations, withheld and surrendered, Rule 10b5-1

4 terms

Restricted Stock (RSA) Award financial

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

tax withholding obligations financial

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

withheld and surrendered financial

"Represents the number of shares withheld and surrendered to the issuer"

Rule 10b5-1 regulatory

"No Rule 10b5-1 trading plan is reported for these dispositions"

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

FAQ

What insider transactions did CWT report for Kenneth G. Jenkins in this Form 4?

The filing reports that 102 CWT common shares were withheld and surrendered by Kenneth G. Jenkins to the issuer on September 4 and 5, 2026 to satisfy tax withholding obligations from vesting Restricted Stock (RSA) awards, rather than open-market trading.

Were the CWT Form 4 transactions by Kenneth G. Jenkins open-market sales?

No. Both transactions are coded as F, described as payment of tax liability by delivering or withholding securities. Footnotes state the shares were withheld and surrendered to the issuer to satisfy tax withholding obligations from vesting Restricted Stock (RSA) awards.

How many CWT shares were surrendered by Kenneth G. Jenkins for tax withholding and at what value?

A total of 102 common shares were surrendered: 64 shares on September 4, 2026 and 38 shares on September 5, 2026. Both transactions reference a value of $50.03 per share for the withheld shares.

What equity awards are linked to the CWT tax-withholding transactions for Kenneth G. Jenkins?

The 64-share withholding on September 4, 2026 relates to a Restricted Stock (RSA) Award granted on March 4, 2025. The 38-share withholding on September 5, 2026 relates to a Restricted Stock (RSA) Award granted on June 5, 2024.

Does the CWT Form 4 indicate use of a Rule 10b5-1 trading plan?

No. The filing’s Rule 10b5-1 checkbox is not checked, and there is no footnote indicating that these tax-withholding dispositions were made under a Rule 10b5-1 or similar pre-arranged trading plan.

What is the role of Kenneth G. Jenkins at California Water Service Group (CWT)?

The Form 4 identifies Kenneth G. Jenkins as an officer of California Water Service Group, holding the title Vice President, Water Resources Planning & Sustainability.

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Available on EDGAR 09/08/2026 - 04:21 PM Accepted by SEC EDGAR 09/08/2026 - 04:20 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^*

Jenkins Kenneth G

(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 Res Plan & Sustain

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		64(1)	D	$50.03	5,163.854	D
Common Stock	09/05/2026		F		38(2)	D	$50.03	5,125.854	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. 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: Kenneth G Jenkins	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)