What caused the tax-withholding share dispositions reported for CWT’s CFO?

The dispositions resulted from tax withholding obligations triggered by vesting Restricted Stock (RSA) Awards granted on March 4, 2025 and June 5, 2024. To meet these obligations, a total of 98 shares were withheld and surrendered to California Water Service Group rather than paid in cash.

Cal Water (NYSE: CWT) CFO has 98 shares withheld to cover tax obligations

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

CALIFORNIA WATER SERVICE GROUP SVP, CFO and Treasurer James Patrick Lynch reported two small tax-related share dispositions. A total of 98 shares of Common Stock were withheld and surrendered to the issuer at prices of $45.82 and $45.24 per share to satisfy tax withholding obligations on vested restricted stock awards. After these transactions, he directly holds about 6,583 Common Stock shares, and no open‑market buys or sells were reported.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Lynch James Patrick

Role SVP CFO and Treasurer

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock	49	$45.82	$2K
Tax Withholding	Common Stock	49	$45.24	$2K

Holdings After Transaction: Common Stock — 6,583.363 shares (Direct, null)

Footnotes (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: 98 shares Tax-withheld lot 1: 49 shares at $45.82 Tax-withheld lot 2: 49 shares at $45.24 +1 more

4 metrics

Tax-withheld shares total 98 shares Shares withheld and surrendered for tax obligations

Tax-withheld lot 1 49 shares at $45.82 Withheld on 2026-06-05 to satisfy tax obligations

Tax-withheld lot 2 49 shares at $45.24 Withheld on 2026-06-04 to satisfy tax obligations

Shares held after transactions 6,583.363 shares Direct Common Stock ownership after tax withholding

Key Terms

Restricted Stock (RSA) Award, Employee Stock Purchase Program (ESPP), tax withholding obligations, Form 4

4 terms

Restricted Stock (RSA) Award financial

"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"

Form 4 regulatory

"INSIDER FILING DATA (Form 4):"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 06/08/2026 - 05:34 PM Accepted by SEC EDGAR 06/08/2026 - 05:33 PM

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^*

Lynch James Patrick

(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 CFO and Treasurer

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	06/04/2026		F		49⁽¹⁾	D	$45.24	6,632.363⁽²⁾	D
Common Stock	06/05/2026		F		49⁽³⁾	D	$45.82	6,583.363	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

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: James P Lynch	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)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transactions did CWT executive James Patrick Lynch report?

James Patrick Lynch reported two Form 4 transactions where 49 shares each time, totaling 98 Common Stock shares, were withheld and surrendered to California Water Service Group to cover tax obligations from vesting restricted stock awards, rather than open-market sales or purchases.

Were the CWT insider transactions by James Patrick Lynch open-market sales?

The reported transactions were not open-market sales. They involved 98 Common Stock shares withheld and surrendered to California Water Service Group to satisfy tax withholding obligations tied to vesting Restricted Stock Awards, a routine compensation-related event rather than a discretionary stock sale.

At what prices were James Patrick Lynch’s CWT shares withheld for taxes?

The 98 withheld shares were split between two dates: 49 shares at $45.82 per share and 49 shares at $45.24 per share. These values reflect the share prices used when shares were surrendered to cover tax liabilities from restricted stock vesting.

How many CWT shares does James Patrick Lynch hold after these transactions?

After the tax-withholding dispositions, James Patrick Lynch directly holds approximately 6,583.363 shares of California Water Service Group Common Stock. This figure reflects his remaining direct ownership after 98 shares were surrendered to the issuer to settle tax obligations on vested restricted stock awards.