California Water Service VP sells 978 shares

Q: Did the CWT insider sale include Employee Stock Purchase Plan shares?

Yes. The transaction included shares acquired through the Employee Stock Purchase Plan (ESPP).

The VP, Rates & Reg Affairs reported 446 directly held shares after the sale; the transaction included Employee Stock Purchase Plan shares.

Available on EDGAR 11/05/2026 - 04:50 PM EST Accepted by SEC EDGAR 11/05/2026 - 04:49 PM EST

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Filing Sentiment

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Form Type

Rhea-AI Filing Summary

California Water Service Group's VP, Rates & Reg Affairs, Gregory Dale Shimansky, reported a direct sale of 978 shares of common stock on November 4, 2026, at $50.00 per share in a single trade. The transaction included shares acquired through the Employee Stock Purchase Plan. His reported direct holdings after the sale were 446 shares. No Rule 10b5-1 plan is reported.

Insider Trade Summary

Net Seller: 978.426 shares

Net Sell 1 txn

Insider Shimansky Gregory Dale

Role VP, Rates & Reg Affairs

Sold 978.426 shs ($49K)

Share of Position Sold 68.7%

Type	Security	Shares	Price	Value
Sale	Common Stock ^{F1, F2}	978.426	$50.00	$49K

Holdings After Transaction: Common Stock — 446 shares (Direct)

Holdings Before and After: Common Stock, 1,424.426 to 446 shares (Direct)

Other Insiders: 1 other insider reported open-market sales of this stock in the 30 days up to this filing.

Footnotes (2)

F1. Includes shares acquired through the Employee Stock Purchase Plan (ESPP).
F2. This transaction was a single trade at a price of $50.00.

Key Figures

Common shares sold: 978 shares Sale price: $50.00 per share Direct shares held after sale: 446 shares

3 metrics

Common shares sold 978 shares Direct sale on November 4, 2026

Sale price $50.00 per share Single trade on November 4, 2026

Direct shares held after sale 446 shares Reported following the transaction

Key Terms

Employee Stock Purchase Plan (ESPP)

1 terms

Employee Stock Purchase Plan (ESPP) financial

"shares acquired through the Employee Stock Purchase Plan (ESPP)"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many CWT shares did Gregory Dale Shimansky sell, and at what price?

Gregory Dale Shimansky, VP, Rates & Reg Affairs at California Water Service Group, reported selling 978 shares of common stock on November 4, 2026, at $50.00 per share in a single trade. The transaction included shares acquired through the Employee Stock Purchase Plan, and his reported direct holdings afterward were 446 shares.

Did the CWT insider sale include Employee Stock Purchase Plan shares?

Yes. The transaction included shares acquired through the Employee Stock Purchase Plan (ESPP).

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 4 Insider Transactions: What Each Field Means →

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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^*

Shimansky Gregory Dale

(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, Rates & Reg Affairs

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
11/04/2026

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	11/04/2026		S		978.426⁽¹⁾	D	$50⁽²⁾	446	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. Includes shares acquired through the Employee Stock Purchase Plan (ESPP).

2. This transaction was a single trade at a price of $50.00.

Remarks:

	/s/ Michelle R. Mortensen on behalf of Gregory Dale Shimansky	11/05/2026
	** 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.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR