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CIK 0001035201 · Large accelerated filer

CALIFORNIA WATER SERVICE GROUP

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Ticker
CWT
Exchange
NYSE
Industry
Water Supply
FY end
Dec 31
Incorporated
DE
Entity type
operating
EIN
770448994
Phone
4083678200
Business address
1720 N FIRST ST, C/O CALIFORNIA WATER SERVICE CO, SAN JOSE, CA, 95112
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$394,692
in 4 filings

Net −$394,692. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Pace of trading Bought Sold

Who's trading

90 days

  1. Krummel Thomas M −$188K Director sold 18% of stake
  2. Pottenger Carol M −$133K Director sold 14% of stake
  3. Shimansky Gregory Dale −$49K VP, Rates & Reg Affairs sold 69% of stake
  4. Snow Lester A −$25K Director sold 3% of stake

Reading 100 more Form 4s from the SEC; this list fills in as they're read.

Date Insider Transaction Shares Price Value Owned after
2026-06-05 Mortensen Michelle R VP Corp Sect, Gov & Assurance Shares withheld for taxes −73 $45.82 $3K 12,953.8
2026-06-05 Luu Michael B SVP Corp Svce & Chief Risk Of Shares withheld for taxes −69 $45.82 $3K 23,806.77
2026-06-05 Lynch James Patrick SVP CFO and Treasurer Shares withheld for taxes −49 $45.82 $2K 6,583.36
2026-06-05 KROPELNICKI MARTIN A Chairman President & CEO Shares withheld for taxes −493 $45.82 $23K 148,284.72
2026-06-04 HAMNER KRISTAN A VP, Chief Human Resource Offcr Shares withheld for taxes −41 $45.24 $2K 3,003.82
2026-06-04 James Sophie Marwieh VP Water Qual Shares withheld for taxes −51 $45.24 $2K 8,371.2
2026-06-04 Jenkins Kenneth G VP Water Res Plan & Sustain Shares withheld for taxes −63 $45.24 $3K 5,266
2026-06-04 Bunting Shawn C Sr. VP, GC and Business Dev Shares withheld for taxes −70 $45.24 $3K 4,783
2026-06-04 Peters Todd Kenneth Vice President, Engineering Shares withheld for taxes −40 $45.24 $2K 8,380
2026-06-04 Scanlon Thomas A VP, Corporate Controller & PAO Shares withheld for taxes −30 $45.24 $1K 5,753.14
2026-06-04 Mares Michael S JR SVP Operations Shares withheld for taxes −69 $45.24 $3K 8,455.6
2026-06-04 Milleman Greg A VP Rates & Regulatory Affairs Shares withheld for taxes −67 $45.24 $3K 13,774.22
2026-06-04 Ouyang Elissa Y VP Facilities Fleet Procure IT Shares withheld for taxes −67 $45.24 $3K 15,005.04
2026-06-04 Dean Shannon C SR. VP, Cust Svc & Chief Sust Shares withheld for taxes −74 $45.24 $3K 23,814.59
2026-06-04 Mortensen Michelle R VP Corp Sect, Gov & Assurance Shares withheld for taxes −74 $45.24 $3K 13,026.8
2026-06-04 Luu Michael B SVP Corp Svce & Chief Risk Of Shares withheld for taxes −70 $45.24 $3K 23,875.77
2026-06-04 Lynch James Patrick SVP CFO and Treasurer Shares withheld for taxes −49 $45.24 $2K 6,632.36
2026-06-04 KROPELNICKI MARTIN A Chairman President & CEO Shares withheld for taxes −504 $45.24 $23K 148,777.72
2026-05-27 Snow Lester A Director Sale −1,100 $44.00 $48K 18,316
2026-05-21 Krummel Thomas M Director Sale −3,700 $43.30 $160K 23,805

Page 3 of 17 · 334 trades