Kristan A. Hamner

CIK: 0002058905

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)2 (40.0%)

Compensation grants

Other (G, F, J, C, D, …)3 (60.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

CWT

CALIFORNIA WATER SERVICE GROUP

Officer

Discretionary Trading P&L

Holdings

Transaction History (5 total)

CWT
CALIFORNIA WATER SERVICE GROUP
Sep 4, 2026
Tax Payment(F)
Direct
42 shares at avg. $50.03$2K
CWT
CALIFORNIA WATER SERVICE GROUP
Jun 4, 2026
Tax Payment(F)
Direct
41 shares at avg. $45.24$2K
CWT
CALIFORNIA WATER SERVICE GROUP
Mar 4, 2026
Tax Payment(F)
Direct
190 shares at avg. $46.99$9K
CWT
CALIFORNIA WATER SERVICE GROUP
Mar 3, 2026
Award(A)
Direct
1.7K shares-
CWT
CALIFORNIA WATER SERVICE GROUP
Mar 4, 2025
Award(A)
Direct
1.4K shares-

		Type	Shares	Price		Ownership
Sep 4, 2026	CWT CALIFORNIA WATER SERVICE GROUP	Tax Payment(F)	42	$50.03	$2,101	Direct
Jun 4, 2026	CWT CALIFORNIA WATER SERVICE GROUP	Tax Payment(F)	41	$45.24	$1,855	Direct
Mar 4, 2026	CWT CALIFORNIA WATER SERVICE GROUP	Tax Payment(F)	190	$46.99	$8,928	Direct
Mar 3, 2026	CWT CALIFORNIA WATER SERVICE GROUP	Award(A)	1,650	-	$0	Direct
Mar 4, 2025	CWT CALIFORNIA WATER SERVICE GROUP	Award(A)	1,378	-	-	Direct

1-5 of 5 transactions

About HAMNER KRISTAN A

HAMNER KRISTAN A (SEC CIK 0002058905) files insider reports with the SEC as VP, Chief Human Resource Offcr of CALIFORNIA WATER SERVICE GROUP (CWT).

Signal8 holds 5 ownership filings by HAMNER KRISTAN A (1 Form 3, 4 Form 4), filed between Mar 4, 2025 and Sep 8, 2026. Those filings report 5 transactions, from Mar 4, 2025 to Sep 4, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on HAMNER KRISTAN A's filings is in SAN JOSE, CA.

Recent filings by HAMNER KRISTAN A

Sep 4, 2026: Tax withholding of CWT shares (Form 4, code F).
Jun 4, 2026: Tax withholding of CWT shares (Form 4, code F).
Mar 4, 2026: Tax withholding of CWT shares (Form 4, code F).
Mar 3, 2026: Grant or award of CWT shares (Form 4, code A).
Mar 4, 2025: Grant or award of CWT shares (Form 4, code A).

Other insiders filing for CALIFORNIA WATER SERVICE GROUP (CWT)

Scanlon Thomas A, VP, Corporate Controller & PAO
Peters Todd Kenneth, Vice President, Engineering
Ouyang Elissa Y, VP Facilities Fleet Procure IT
Mortensen Michelle R, VP Corp Sect, Gov & Assurance
Mares Michael S JR, SVP Operations
Lynch James Patrick, SVP CFO and Treasurer

How to read Form 4 transaction codes