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CALIFORNIA WATER SERVICE GROUP

For the period ended Dec 31, 2025. Filed Feb 27, 2026.

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About this filing

A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2025 · Filed Feb 27, 2026

CWT$50.16-1.7%Stored close · as of Nov 9, 2026

Extracted filing text, with the paragraph anchors used by the comparison.

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Contents

Signatures

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized

CALIFORNIA WATER SERVICE GROUP
By/s/ MARTIN A. KROPELNICKI
Date: February 26, 2026MARTIN A. KROPELNICKI, Chairman, President and Chief Executive Officer

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated. The members of the Board of Directors who have signed below constitute a majority of the Board of Directors.

/s/ MARTIN A. KROPELNICKIPresident and Chief Executive Officer; Principal Executive Officer; Chairman, Board of DirectorsDate: February 26, 2026
MARTIN A. KROPELNICKI
/s/ GREGORY E. ALIFFMember, Board of DirectorsDate: February 26, 2026
GREGORY E. ALIFF
/s/ SHELLY M. ESQUEMember, Board of DirectorsDate: February 26, 2026
SHELLY M. ESQUE
/s/ JEFFREY KIGHTLINGERMember, Board of DirectorsDate: February 26, 2026
JEFFREY KIGHTLINGER
/s/ THOMAS M. KRUMMELMember, Board of DirectorsDate: February 26, 2026
THOMAS M. KRUMMEL, M.D.
/s/ YVONNE A. MALDONADOMember, Board of DirectorsDate: February 26, 2026
YVONNE A. MALDONADO, M.D.
/s/ SCOTT L. MORRISMember, Board of DirectorsDate: February 26, 2026
SCOTT L. MORRIS
/s/ CHARLES R. PATTONMember, Board of DirectorsDate: February 26, 2026
CHARLES R. PATTON
/s/ CAROL M. POTTENGERMember, Board of DirectorsDate: February 26, 2026
CAROL M. POTTENGER
/s/ LESTER A. SNOWMember, Board of DirectorsDate: February 26, 2026
LESTER A. SNOW
/s/ PATRICIA K. WAGNERMember, Board of DirectorsDate: February 26, 2026
PATRICIA K. WAGNER
/s/ JAMES P. LYNCHSenior Vice President, Chief Financial Officer, Principal Financial Officer, and TreasurerDate: February 26, 2026
JAMES P. LYNCH
/s/ THOMAS A. SCANLONVice President, Corporate Controller, Chief Accounting Officer, and Principal Accounting OfficerDate: February 26, 2026
THOMAS A. SCANLON
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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.