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California Water Service Group (CWT)

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Insider transactions

A complete record of Form 4 filings tracking every share acquisition and disposal by executives, directors, and senior officers. Filterable by date range and transaction type, the table exposes the direct market actions of those with the deepest knowledge of a company's operations — providing a factual, data-driven signal of internal conviction that complements traditional fundamental and technical analysis.

Transaction date
Executive
Executive Title
Security Type
Acquisition / Disposal
Shares
Share price
Sep 5, 2026JAMES, SOPHIE MARWIEHVP Water QualCommon StockDisposal50$50.03
Sep 5, 2026PETERS, TODD KENNETHVice President, EngineeringCommon StockDisposal40$50.03
Sep 5, 2026OUYANG, ELISSA YVP Facilities Fleet Procure ITCommon StockDisposal66$50.03
Sep 5, 2026MORTENSEN, MICHELLE RVP Corp Sect, Gov & AssuranceCommon StockDisposal73$50.03
Sep 5, 2026JENKINS, KENNETH GVP Water Res Plan & SustainCommon StockDisposal38$50.03
Sep 5, 2026BUNTING, SHAWN CSVP, Chief Legal Officer & BDCommon StockDisposal69$50.03
Sep 5, 2026KROPELNICKI, MARTIN AChairman President & CEOCommon StockDisposal493$50.03
Sep 5, 2026SCANLON, THOMAS AVP, Corporate Controller & PAOCommon StockDisposal30$50.03
Sep 5, 2026LYNCH, JAMES PATRICKSVP CFO and TreasurerCommon StockDisposal48$50.03
Sep 5, 2026DEAN, SHANNON CSVP, Cust Svc & Chief Sust OfCommon StockDisposal72$50.03
Sep 5, 2026MARES, MICHAEL S JRSVP OperationsCommon StockDisposal67$50.03
Sep 5, 2026LUU, MICHAEL BSVP Corp Svce & Chief Risk OfCommon StockDisposal68$50.03
Sep 4, 2026KROPELNICKI, MARTIN AChairman President & CEOCommon StockDisposal505$50.03
Sep 4, 2026LYNCH, JAMES PATRICKSVP CFO and TreasurerCommon StockDisposal50$50.03
Sep 4, 2026SCANLON, THOMAS AVP, Corporate Controller & PAOCommon StockDisposal30$50.03
Sep 4, 2026JENKINS, KENNETH GVP Water Res Plan & SustainCommon StockDisposal64$50.03
Sep 4, 2026DEAN, SHANNON CSVP, Cust Svc & Chief Sust OfCommon StockDisposal75$50.03
Sep 4, 2026MARES, MICHAEL S JRSVP OperationsCommon StockDisposal69$50.03
Sep 4, 2026LUU, MICHAEL BSVP Corp Svce & Chief Risk OfCommon StockDisposal70$50.03
Sep 4, 2026OUYANG, ELISSA YVP Facilities Fleet Procure ITCommon StockDisposal68$50.03
Sep 4, 2026PETERS, TODD KENNETHVice President, EngineeringCommon StockDisposal41$50.03
Sep 4, 2026BUNTING, SHAWN CSVP, Chief Legal Officer & BDCommon StockDisposal71$50.03
Sep 4, 2026MORTENSEN, MICHELLE RVP Corp Sect, Gov & AssuranceCommon StockDisposal75$50.03
Sep 4, 2026JAMES, SOPHIE MARWIEHVP Water QualCommon StockDisposal51$50.03
Sep 4, 2026HAMNER, KRISTAN AVP, Chief Human Resource OffcrCommon StockDisposal42$50.03
Sep 1, 2026SNOW, LESTER ADirectorCommon StockDisposal500$50.21
Aug 13, 2026KRUMMEL, THOMAS MDirectorCommon StockDisposal3,700$50.37
Aug 4, 2026SHIMANSKY, GREGORY DALEVP, Rates & Reg AffairsCommon StockAcquisition446$0
Jun 5, 2026MILLEMAN, GREG AVP Rates & Regulatory AffairsCommon StockDisposal66$45.82
Jun 5, 2026LUU, MICHAEL BSVP Corp Svce & Chief Risk OfCommon StockDisposal69$45.82
Jun 5, 2026LYNCH, JAMES PATRICKSVP CFO and TreasurerCommon StockDisposal49$45.82
Jun 5, 2026DEAN, SHANNON CSR. VP, Cust Svc & Chief SustCommon StockDisposal73$45.82
Jun 5, 2026BUNTING, SHAWN CSr. VP, GC and Business DevCommon StockDisposal69$45.82
Jun 5, 2026OUYANG, ELISSA YVP Facilities Fleet Procure ITCommon StockDisposal66$45.82
Jun 5, 2026SCANLON, THOMAS AVP, Corporate Controller & PAOCommon StockDisposal30$45.82
Jun 5, 2026MORTENSEN, MICHELLE RVP Corp Sect, Gov & AssuranceCommon StockDisposal73$45.82
Jun 5, 2026PETERS, TODD KENNETHVice President, EngineeringCommon StockDisposal40$45.82
Jun 5, 2026MARES, MICHAEL S JRSVP OperationsCommon StockDisposal68$45.82
Jun 5, 2026KROPELNICKI, MARTIN AChairman President & CEOCommon StockDisposal493$45.82
Jun 5, 2026JAMES, SOPHIE MARWIEHVP Water QualCommon StockDisposal50$45.82
Jun 5, 2026JENKINS, KENNETH GVP Water Res Plan & SustainCommon StockDisposal38$45.82
Jun 4, 2026MORTENSEN, MICHELLE RVP Corp Sect, Gov & AssuranceCommon StockDisposal74$45.24
Jun 4, 2026HAMNER, KRISTAN AVP, Chief Human Resource OffcrCommon StockDisposal41$45.24
Jun 4, 2026KROPELNICKI, MARTIN AChairman President & CEOCommon StockDisposal504$45.24
Jun 4, 2026PETERS, TODD KENNETHVice President, EngineeringCommon StockDisposal40$45.24
Jun 4, 2026JAMES, SOPHIE MARWIEHVP Water QualCommon StockDisposal51$45.24
Jun 4, 2026JENKINS, KENNETH GVP Water Res Plan & SustainCommon StockDisposal63$45.24
Jun 4, 2026MILLEMAN, GREG AVP Rates & Regulatory AffairsCommon StockDisposal67$45.24
Jun 4, 2026MARES, MICHAEL S JRSVP OperationsCommon StockDisposal69$45.24
Jun 4, 2026BUNTING, SHAWN CSr. VP, GC and Business DevCommon StockDisposal70$45.24
Jun 4, 2026LUU, MICHAEL BSVP Corp Svce & Chief Risk OfCommon StockDisposal70$45.24
Jun 4, 2026LYNCH, JAMES PATRICKSVP CFO and TreasurerCommon StockDisposal49$45.24
Jun 4, 2026OUYANG, ELISSA YVP Facilities Fleet Procure ITCommon StockDisposal67$45.24
Jun 4, 2026DEAN, SHANNON CSR. VP, Cust Svc & Chief SustCommon StockDisposal74$45.24
Jun 4, 2026SCANLON, THOMAS AVP, Corporate Controller & PAOCommon StockDisposal30$45.24
May 27, 2026SNOW, LESTER ADirectorCommon StockDisposal1,100$44
May 21, 2026KRUMMEL, THOMAS MDirectorCommon StockDisposal3,700$43.30
Mar 20, 2026LUU, MICHAEL BSr. VP Corp Svcs & Chief RiskCommon StockDisposal739.85$44.53
Mar 20, 2026MARES, MICHAEL S JRVice President, OperationsCommon StockDisposal3,892$44
Mar 7, 2026SCANLON, THOMAS AVP, Corporate Controller & CAOCommon StockDisposal226$45.59
Mar 7, 2026DEAN, SHANNON CSR. VP, Cust Svc & Chief SustCommon StockAcquisition900$0
Mar 7, 2026BUNTING, SHAWN CSr. VP, GC and Business DevCommon StockDisposal422$45.59
Mar 7, 2026KROPELNICKI, MARTIN AChairman President & CEOCommon StockDisposal385$45.59
Mar 7, 2026OUYANG, ELISSA YVP Facilities Fleet & ProcureCommon StockDisposal57$45.59
Mar 7, 2026SCANLON, THOMAS AVP, Corporate Controller & CAOCommon StockDisposal26$45.59
Mar 7, 2026OUYANG, ELISSA YVP Facilities Fleet & ProcureCommon StockDisposal488$45.59
Mar 7, 2026SCANLON, THOMAS AVP, Corporate Controller & CAOCommon StockAcquisition548$0
Mar 7, 2026BUNTING, SHAWN CSr. VP, GC and Business DevCommon StockAcquisition750$0
Mar 7, 2026LUU, MICHAEL BSVP Corp Svce & Chief Risk OfCommon StockAcquisition205$0
Mar 7, 2026MARES, MICHAEL S JRSVP OperationsCommon StockAcquisition900$0
Mar 7, 2026KROPELNICKI, MARTIN AChairman President & CEOCommon StockDisposal3,817$45.59
Mar 7, 2026LUU, MICHAEL BSVP Corp Svce & Chief Risk OfCommon StockDisposal504$45.59
Mar 7, 2026LUU, MICHAEL BSVP Corp Svce & Chief Risk OfCommon StockDisposal115$45.59
Mar 7, 2026DEAN, SHANNON CSR. VP, Cust Svc & Chief SustCommon StockDisposal62$45.59
Mar 7, 2026BUNTING, SHAWN CSr. VP, GC and Business DevCommon StockDisposal49$45.59
Mar 7, 2026LUU, MICHAEL BSVP Corp Svce & Chief Risk OfCommon StockDisposal59$45.59
Mar 7, 2026LUU, MICHAEL BSVP Corp Svce & Chief Risk OfCommon StockAcquisition900$0
Mar 7, 2026OUYANG, ELISSA YVP Facilities Fleet & ProcureCommon StockAcquisition900$0
Mar 7, 2026MARES, MICHAEL S JRSVP OperationsCommon StockDisposal495$45.59
Mar 7, 2026MARES, MICHAEL S JRSVP OperationsCommon StockDisposal58$45.59
Mar 7, 2026JENKINS, KENNETH GVP Water Res Plan & SustainCommon StockAcquisition548$0
Mar 7, 2026JENKINS, KENNETH GVP Water Res Plan & SustainCommon StockDisposal33$45.59
Mar 7, 2026JENKINS, KENNETH GVP Water Res Plan & SustainCommon StockDisposal281$45.59
Mar 7, 2026DEAN, SHANNON CSR. VP, Cust Svc & Chief SustCommon StockDisposal531$45.59
Mar 7, 2026MILLEMAN, GREG AVP Rates & Regulatory AffairsCommon StockDisposal57$45.59
Mar 7, 2026PETERS, TODD KENNETHVice President, EngineeringCommon StockDisposal296$45.59
Mar 7, 2026PETERS, TODD KENNETHVice President, EngineeringCommon StockDisposal34$45.59
Mar 7, 2026PETERS, TODD KENNETHVice President, EngineeringCommon StockAcquisition548$0
Mar 7, 2026MILLEMAN, GREG AVP Rates & Regulatory AffairsCommon StockAcquisition900$0
Mar 7, 2026MILLEMAN, GREG AVP Rates & Regulatory AffairsCommon StockDisposal486$45.59
Mar 7, 2026KROPELNICKI, MARTIN AChairman President & CEOCommon StockAcquisition6,507$0
Mar 7, 2026JAMES, SOPHIE MARWIEHVP Water Qual & Envir AffairsCommon StockDisposal27$45.59
Mar 7, 2026MORTENSEN, MICHELLE RVP Corp Sect & Chief of StaffCommon StockAcquisition900$0
Mar 7, 2026MORTENSEN, MICHELLE RVP Corp Sect & Chief of StaffCommon StockDisposal534$45.59
Mar 7, 2026JAMES, SOPHIE MARWIEHVP Water Qual & Envir AffairsCommon StockDisposal232$45.59
Mar 7, 2026MORTENSEN, MICHELLE RVP Corp Sect & Chief of StaffCommon StockDisposal63$45.59
Mar 7, 2026JAMES, SOPHIE MARWIEHVP Water Qual & Envir AffairsCommon StockAcquisition548$0
Mar 5, 2026MARES, MICHAEL S JRSVP OperationsCommon StockDisposal75$45.78
Mar 5, 2026MORTENSEN, MICHELLE RVP Corp Sect & Chief of StaffCommon StockDisposal80$45.78
Mar 5, 2026KROPELNICKI, MARTIN AChairman President & CEOCommon StockDisposal493$45.78
Mar 5, 2026SCANLON, THOMAS AVP, Corporate Controller & CAOCommon StockDisposal34$45.78
Mar 5, 2026JENKINS, KENNETH GVP Water Res Plan & SustainCommon StockDisposal42$45.78
Mar 5, 2026MILLEMAN, GREG AVP Rates & Regulatory AffairsCommon StockDisposal73$45.78
Mar 5, 2026OUYANG, ELISSA YVP Facilities Fleet & ProcureCommon StockDisposal74$45.78
Mar 5, 2026DEAN, SHANNON CSR. VP, Cust Svc & Chief SustCommon StockDisposal80$45.78
Mar 5, 2026BUNTING, SHAWN CSr. VP, GC and Business DevCommon StockDisposal76$45.78
Mar 5, 2026LYNCH, JAMES PATRICKSVP CFO and TreasurerCommon StockDisposal56$45.78
Mar 5, 2026PETERS, TODD KENNETHVice President, EngineeringCommon StockDisposal44$45.78
Mar 5, 2026JAMES, SOPHIE MARWIEHVP Water Qual & Envir AffairsCommon StockDisposal57$45.78
Mar 5, 2026LUU, MICHAEL BSVP Corp Svce & Chief Risk OfCommon StockDisposal76$45.78
Mar 4, 2026LUU, MICHAEL BSVP Corp Svce & Chief Risk OfCommon StockDisposal309$46.99
Mar 4, 2026SCANLON, THOMAS ACorporate Controller & PAOCommon StockDisposal137$46.99
Mar 4, 2026PETERS, TODD KENNETHVice President, EngineeringCommon StockDisposal179$46.99
Mar 4, 2026LYNCH, JAMES PATRICKSVP CFO and TreasurerCommon StockDisposal226$46.99
Mar 4, 2026DEAN, SHANNON CSR. VP, Cust Svc & Chief SustCommon StockDisposal325$46.99
Mar 4, 2026BUNTING, SHAWN CSr. VP, GC and Business DevCommon StockDisposal310$46.99
Mar 4, 2026OUYANG, ELISSA YVP Facilities Fleet & ProcureCommon StockDisposal299$46.99
Mar 4, 2026KROPELNICKI, MARTIN AChairman President & CEOCommon StockDisposal2,017$46.99
Mar 4, 2026HAMNER, KRISTAN AVP, Chief Human Resource OffcrCommon StockDisposal190$46.99
Mar 4, 2026MARES, MICHAEL S JRSVP OperationsCommon StockDisposal303$46.99
Mar 4, 2026MORTENSEN, MICHELLE RVP Corp Sect & Chief of StaffCommon StockDisposal327$46.99
Mar 4, 2026JAMES, SOPHIE MARWIEHVP Water Qual & Envir AffairsCommon StockDisposal233$46.99
Mar 4, 2026JENKINS, KENNETH GVP Water Res Plan & SustainCommon StockDisposal283$46.99
Mar 4, 2026MILLEMAN, GREG AVP Rates & Regulatory AffairsCommon StockDisposal298$46.99
Mar 3, 2026SCANLON, THOMAS ACorporate Controller & PAOCommon StockAcquisition1,650$0
Mar 3, 2026LYNCH, JAMES PATRICKSVP CFO and TreasurerCommon StockAcquisition1,650$0
Mar 3, 2026BUNTING, SHAWN CSr. VP, GC and Business DevCommon StockAcquisition1,650$0
Mar 3, 2026WAGNER, PATRICIA KDirectorCommon StockAcquisition2,816$0
Mar 3, 2026DEAN, SHANNON CSR. VP, Cust Svc & Chief SustCommon StockAcquisition1,650$0
Mar 3, 2026OUYANG, ELISSA YVP Facilities Fleet & ProcureCommon StockAcquisition1,650$0
Mar 3, 2026KROPELNICKI, MARTIN AChairman President & CEOCommon StockAcquisition10,295$0
Mar 3, 2026HAMNER, KRISTAN AVP, Chief Human Resource OffcrCommon StockAcquisition1,650$0
Mar 3, 2026KRUMMEL, THOMAS MDirectorCommon StockAcquisition2,816$0
Mar 3, 2026PETERS, TODD KENNETHVice President, EngineeringCommon StockAcquisition1,650$0
Mar 3, 2026MORRIS, SCOTT LDirectorCommon StockAcquisition2,816$0
Mar 3, 2026ESQUE, SHELLY MARIANDirectorCommon StockAcquisition2,816$0
Mar 3, 2026POTTENGER, CAROL MDirectorCommon StockAcquisition2,816$0
Mar 3, 2026MARES, MICHAEL S JRSVP OperationsCommon StockAcquisition1,650$0
Mar 3, 2026MALDONADO, YVONNE AIDADirectorCommon StockAcquisition2,816$0
Mar 3, 2026JAMES, SOPHIE MARWIEHVP Water Qual & Envir AffairsCommon StockAcquisition1,650$0
Mar 3, 2026PATTON, CHARLES R.DirectorCommon StockAcquisition2,816$0
Mar 3, 2026SNOW, LESTER ADirectorCommon StockAcquisition2,816$0
Mar 3, 2026ALIFF, GREGORY EDirectorCommon StockAcquisition2,816$0
Mar 3, 2026MORTENSEN, MICHELLE RVP Corp Sect & Chief of StaffCommon StockAcquisition1,650$0
Mar 3, 2026KIGHTLINGER, JEFFREYDirectorCommon StockAcquisition2,816$0
Mar 3, 2026MILLEMAN, GREG AVP Rates & Regulatory AffairsCommon StockAcquisition1,650$0
Mar 3, 2026JENKINS, KENNETH GVP Water Res Plan & SustainCommon StockAcquisition1,650$0
Mar 3, 2026LUU, MICHAEL BSVP Corp Svce & Chief Risk OfCommon StockAcquisition1,650$0
Dec 23, 2025MORTENSEN, MICHELLE RVP, Corp Sec &Chief of StaffCommon StockDisposal924$43.34
Dec 10, 2025LYNCH, JAMES PATRICKSVP CFO and TreasurerCommon StockAcquisition550$42.80
Dec 7, 2025MILLEMAN, GREG AVP Rates & Regulatory AffairsCommon StockDisposal51$44.88
Dec 7, 2025SCANLON, THOMAS ACorporate Controller & PAOCommon StockDisposal23$44.88
Dec 7, 2025JENKINS, KENNETH GVP Water Res Plan & SustainCommon StockDisposal29$44.88
Dec 7, 2025DEAN, SHANNON CSR. VP, Cust Svc & Chief SustCommon StockDisposal57$44.88
Dec 7, 2025JAMES, SOPHIE MARWIEHVP Water Qual & Envir AffairsCommon StockDisposal24$44.88
Dec 7, 2025KROPELNICKI, MARTIN AChairman President & CEOCommon StockDisposal385$44.88
Dec 7, 2025MORTENSEN, MICHELLE RVP Corp Sect & Chief of StaffCommon StockDisposal57$44.88
Dec 7, 2025OUYANG, ELISSA YVP Facilities Fleet & ProcureCommon StockDisposal52$44.88
Dec 7, 2025BUNTING, SHAWN CSr. VP, GC and Business DevCommon StockDisposal45$44.88
Dec 7, 2025MARES, MICHAEL S JRSVP OperationsCommon StockDisposal53$44.88
Dec 7, 2025LUU, MICHAEL BSVP Corp Svce & Chief Risk OfCommon StockDisposal54$44.88
Dec 5, 2025DEAN, SHANNON CSR. VP, Cust Svc & Chief SustCommon StockDisposal73$44.88
Dec 5, 2025LUU, MICHAEL BSVP Corp Svce & Chief Risk OfCommon StockDisposal69$44.88
Dec 5, 2025MILLEMAN, GREG AVP Rates & Regulatory AffairsCommon StockDisposal66$44.88
Dec 5, 2025OUYANG, ELISSA YVP Facilities Fleet & ProcureCommon StockDisposal66$44.88
Dec 5, 2025BUNTING, SHAWN CSr. VP, GC and Business DevCommon StockDisposal69$44.88
Dec 5, 2025LYNCH, JAMES PATRICKSVP CFO and TreasurerCommon StockDisposal48$44.88
Dec 5, 2025KROPELNICKI, MARTIN AChairman President & CEOCommon StockDisposal492$44.88
Dec 5, 2025JENKINS, KENNETH GVP Water Res Plan & SustainCommon StockDisposal38$44.88
Dec 5, 2025MORTENSEN, MICHELLE RVP Corp Sect & Chief of StaffCommon StockDisposal73$44.88
Dec 5, 2025JAMES, SOPHIE MARWIEHVP Water Qual & Envir AffairsCommon StockDisposal50$44.88
Dec 5, 2025KROPELNICKI, MARTIN AChairman President & CEOCommon StockDisposal3,000$0
Dec 5, 2025MARES, MICHAEL S JRSVP OperationsCommon StockDisposal67$44.88
Dec 5, 2025SCANLON, THOMAS ACorporate Controller & PAOCommon StockDisposal29$44.88