Calif. Water (NYSE: CWT) VP gets PSU shares, surrenders stock for taxes

Rhea-AI Filing Summary

California Water Service Group Vice President, Engineering Todd Kenneth Peters reported stock-based compensation activity in common stock. On March 7, 2026, he acquired 548 shares at $0.00 per share as a grant/award tied to a Performance Stock Unit (PSU) award granted on March 7, 2023, which vested based on Board-approved performance criteria and paid out at 46% of the original goal.

On March 5 and March 7, 2026, Peters disposed of shares in several Code F tax-withholding transactions at prices around $45.59–$45.78 per share, representing stock withheld and surrendered to the company to cover tax obligations on vesting of Restricted Stock Awards and PSU awards. After these transactions, he owned 8,420 common shares directly.

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

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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^*

Peters Todd Kenneth

(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)
	Vice President, Engineering

3. Date of Earliest Transaction (Month/Day/Year)
03/05/2026

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	03/05/2026		F		44(1)	D	$45.78	8,202	D
Common Stock	03/07/2026		A		548(2)	A	$0.0	8,750	D
Common Stock	03/07/2026		F		296(3)	D	$45.59	8,454	D
Common Stock	03/07/2026		F		34(1)	D	$45.59	8,420	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 by and surrendered to the Issuer to satisfy the tax withholding obligations that arose in connection with the vesting of the Restricted Stock Award (RSA)

2. The reporting person was granted a Performance Stock Unit (PSU) award on 3/7/2023. The PSU vested in full based on the satisfaction of certain performance criteria approved by the Board of Directors. The performance criteria was met resulting in 46% payout of the original goal

3. Represents the number of shares withheld by and surrendered to the Issuer to satisfy the tax withholding obligations that arose in connection with the vesting of a Performance Stock Unit (PSU) Award.

	By: /s/ Michelle R. Mortensen For: Todd Kenneth Peters	03/09/2026
	** 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).
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FAQ

What insider transactions did CWT executive Todd Kenneth Peters report?

Todd Kenneth Peters reported a stock award and related tax withholdings. He received 548 shares of California Water Service Group common stock as a grant, then surrendered multiple small share blocks to the issuer to satisfy tax withholding obligations upon vesting of equity awards.

How many California Water Service Group (CWT) shares did Peters acquire in the Form 4?

Peters acquired 548 shares of California Water Service Group common stock at $0.00 per share. The shares came from a vested Performance Stock Unit award granted on March 7, 2023, which vested based on performance criteria approved by the company’s Board of Directors.

What do the Code F transactions mean in the CWT Form 4 for Peters?

The Code F entries show tax-withholding dispositions. Shares were withheld by and surrendered to California Water Service Group at about $45.59–$45.78 per share to pay taxes arising from the vesting of Restricted Stock Awards and a Performance Stock Unit award.

How were performance goals reflected in Peters’ CWT stock award vesting?

Peters’ Performance Stock Unit award vested based on Board-approved performance criteria. The filing notes the performance criteria were met, resulting in a 46% payout of the original goal, which led to the delivery of common shares reported as a grant in the Form 4.

What is Peters’ direct common stock ownership in CWT after these transactions?

Following the reported grant and tax-withholding dispositions, Peters directly owned 8,420 shares of California Water Service Group common stock. This figure reflects his direct holdings after all March 5 and March 7, 2026 Form 4 transactions listed in the filing.

Were Peters’ CWT share dispositions open-market sales?

No. The dispositions are identified as Code F tax-withholding transactions. The filing explains that these shares were withheld by and surrendered to California Water Service Group to satisfy tax liabilities tied to the vesting of Restricted Stock Awards and a Performance Stock Unit award.