California Water Service Group (NYSE: CWT) director gets 2,816-share award

Rhea-AI Filing Summary

California Water Service Group director Jeffrey Kightlinger acquired 2,816 shares of restricted common stock as an equity award. The grant was made on March 3, 2026 under the company’s equity incentive plan at no cash cost per share and is exempt under Rule 16b-3.

The restricted stock vests on a one-year cliff schedule, with 100% vesting on the first anniversary of the grant date. Following this grant and prior dividend reinvestment activity, Kightlinger now directly holds 8,354.7 shares of common stock.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Kightlinger Jeffrey

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	2,816	$0.00	--

Holdings After Transaction: Common Stock — 8,354.7 shares (Direct)

Footnotes (1)

1. Restricted stock granted on 3/3/2026 pursuant to the California Water Service Group equity incentive plan in a transaction exempt under Rule 16-b-3 vests with a one-year cliff vesting term, vesting 100% on the first anniversary of the grant date. Includes shares acquired through Dividend Reinvestment.

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^*

Kightlinger Jeffrey

(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)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

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

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	03/03/2026		A		2,816(1)	A	$0.0	8,354.7(2)	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. Restricted stock granted on 3/3/2026 pursuant to the California Water Service Group equity incentive plan in a transaction exempt under Rule 16-b-3 vests with a one-year cliff vesting term, vesting 100% on the first anniversary of the grant date.

2. Includes shares acquired through Dividend Reinvestment.

	By: /s/ Michelle R. Mortensen For: Jeffrey Kightlinger	03/05/2026
	** 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.

FAQ

What did California Water Service Group (CWT) director Jeffrey Kightlinger report on this Form 4?

Jeffrey Kightlinger reported receiving an award of 2,816 shares of restricted common stock. The grant came under California Water Service Group’s equity incentive plan and involved no cash purchase, reflecting stock-based compensation rather than an open-market transaction.

How many California Water Service Group (CWT) shares were granted to Jeffrey Kightlinger?

Jeffrey Kightlinger was granted 2,816 shares of restricted common stock. These shares were issued as an equity incentive award, not bought in the market, and form part of his overall ownership position in California Water Service Group.

What are the vesting terms of Jeffrey Kightlinger’s 2,816 restricted CWT shares?

The 2,816 restricted shares vest on a one-year cliff schedule, with 100% vesting on the first anniversary of the March 3, 2026 grant date. Until vesting, the award remains subject to the conditions of California Water Service Group’s equity incentive plan.

Did Jeffrey Kightlinger pay a purchase price for the newly acquired CWT shares?

No, the reported transaction price per share was $0.0000. This indicates the 2,816 shares were received as a stock grant under California Water Service Group’s equity incentive plan, rather than being purchased for cash in the open market.

What is Jeffrey Kightlinger’s total California Water Service Group share ownership after this grant?

After the 2,816-share restricted stock grant, Jeffrey Kightlinger directly holds 8,354.7 shares of California Water Service Group common stock. This total includes shares previously acquired through the company’s Dividend Reinvestment program, as noted in the filing footnotes.

Is the Form 4 transaction for Jeffrey Kightlinger classified as a buy or an award of CWT stock?

The transaction is classified as a grant, award, or other acquisition, coded “A” on Form 4. It reflects an equity award under the California Water Service Group incentive plan, not an open-market buy or sell transaction by director Jeffrey Kightlinger.