California Water SVP surrenders 140 shares for tax

An executive of CWT settled tax obligations from vesting restricted stock by having 140 shares withheld and surrendered to the company.

Rhea-AI Filing Summary

CALIFORNIA WATER SERVICE GROUP (CWT) reported that Shawn C. Bunting, its SVP, Chief Legal Officer & BD, had common shares withheld in two transactions on September 4 and 5, 2026 to cover tax withholding obligations from vesting Restricted Stock Awards. The transactions involved a total of 140 shares delivered back to the issuer at a reference price of $50.03 per share and were reported as payments of tax liability by delivering or withholding securities; no Rule 10b5-1 plan is reported.

Insider Trade Summary

Tax Withholding: 140 shares

Tax Withholding 2 txns

Insider Bunting Shawn C

Role SVP, Chief Legal Officer & BD

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock F2	69	$50.03	$3K
Tax Withholding	Common Stock F1	71	$50.03	$4K

Holdings After Transaction: Common Stock — 4,573.731 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 withheld on September 4, 2026: 71 shares Shares withheld on September 5, 2026: 69 shares Total shares used for tax withholding: 140 shares +3 more

6 metrics

Shares withheld on September 4, 2026 71 shares Common stock delivered to issuer to satisfy tax withholding on RSA vesting

Shares withheld on September 5, 2026 69 shares Common stock delivered to issuer to satisfy tax withholding on RSA vesting

Total shares used for tax withholding 140 shares Aggregate of both code F dispositions reported in this Form 4

Reference price per share $50.03 per share Price associated with both tax-withholding dispositions

RSA grant date 1 March 4, 2025 Restricted Stock (RSA) Award whose vesting triggered part of the tax withholding

RSA grant date 2 June 5, 2024 Restricted Stock (RSA) Award whose vesting triggered part of the tax withholding

Key Terms

Restricted Stock (RSA) Award, tax withholding obligations, Rule 10b5-1 plan

3 terms

Restricted Stock (RSA) Award financial

"in connection with the vesting of Restricted Stock (RSA) Award granted on"

tax withholding obligations financial

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

Rule 10b5-1 plan regulatory

"no Rule 10b5-1 plan is reported for these tax-withholding dispositions"

A Rule 10b5-1 plan is a prearranged, written schedule that lets corporate insiders buy or sell company stock at set times or amounts, even if they later learn material nonpublic information. Think of it like setting an automatic thermostat for trades: it creates a clear record that trades were planned in advance, reducing the risk of insider-trading accusations and helping investors trust that insider transactions are routine rather than based on secret information.

FAQ

What insider transaction did CWT report for Shawn C. Bunting?

CWT reported that Shawn C. Bunting had 140 common shares withheld and surrendered to the company on September 4 and 5, 2026 to satisfy tax withholding obligations from vesting Restricted Stock (RSA) Awards.

How many CWT shares were involved on each date?

On September 4, 2026, 71 shares of CWT common stock were withheld. On September 5, 2026, an additional 69 shares were withheld. Together, the Form 4 reports 140 shares delivered back to the issuer for tax withholding.

What price per share is associated with the CWT insider tax-withholding transactions?

Both reported tax-withholding transactions for CWT common stock use a reference price of $50.03 per share, consistent across the 71-share and 69-share dispositions reported on September 4 and 5, 2026.

Why were CWT shares withheld from Shawn C. Bunting?

The footnotes state the shares were withheld and surrendered to CWT to satisfy tax withholding obligations arising from the vesting of Restricted Stock (RSA) Awards granted on March 4, 2025 and June 5, 2024.

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

No. The filing’s Rule 10b5-1 checkbox is not marked for these transactions, and the footnotes do not reference any trading plan, so no Rule 10b5-1 plan is reported for these tax-withholding dispositions.

Do the reported CWT transactions represent open market sales?

No. The Form 4 describes both entries as payments of tax liability by delivering or withholding securities, meaning the 140 shares were surrendered to the issuer rather than sold in open market transactions.

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

Bunting Shawn 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, Chief Legal Officer & BD

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		71(1)	D	$50.03	4,642.731	D
Common Stock	09/05/2026		F		69(2)	D	$50.03	4,573.731	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: Shawn C Bunting	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)