California Water Service Group (CWT) Insider Ownership

Historic Insider Ownership Trends

Over the 90-day window ending February 19, 2026, California Water Service's three dominant insider ownership positions are held by Chairman President & Ceo Martin A Kropelnicki (136.25K shares), Director Richard P Magnuson (59.73K shares), Vp And Cfo & Treasurer Thomas F Iii Smegal (46.78K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares Report Date
Martin A Kropelnicki Chairman President & Ceo 136,254 09 Dec, 2025
Richard P Magnuson 59,733 03 Mar, 2022
Thomas F Iii Smegal Vp And Cfo & Treasurer 46,777 05 Jun, 2023
Paul G. Townsley Vp And Rates & Reg Matters 31,540 05 Jun, 2023
Lynne P Mcghee Vp And General Counsel 26,981 05 Jun, 2023
Ronald D Webb Vp And Human Resources 26,580 11 Mar, 2025
Lester A Snow 26,349 13 Jun, 2025
Thomas M Krummel 24,624 06 Mar, 2025
Gregory E Aliff 23,060 06 Mar, 2025
Michael B Luu Svp Corp Svce & Chief Risk Of 22,611 09 Dec, 2025
Shannon C Dean Sr. Vp And Cust Svc & Chief Sust 22,166 09 Dec, 2025
Peter C Nelson 20,420 09 Mar, 2023
Carol M Pottenger 16,306 06 Mar, 2025
Terry Bayer 16,257 03 Mar, 2022
Shelly Marian Esque 15,358 06 Mar, 2025
Elissa Y Ouyang Vp Facilities Fleet & Procure 13,445 09 Dec, 2025
Robert J Kuta Vp And Engineering 12,805 05 Jun, 2023
Patricia K Wagner 12,333 06 Mar, 2025
Scott L Morris 12,328 06 Mar, 2025
Greg A Milleman Vp Rates & Regulatory Affairs 11,553 09 Dec, 2025
Michelle R Mortensen Vp And Corp Sec &Chief Of Staff 11,512 23 Dec, 2025
Michael S Jr Mares Svp Operations 10,710 09 Dec, 2025
Yvonne Aida Maldonado 9,754 06 Mar, 2025
Gerald A Simon Chief Safety & Preparedness 6,620 07 Jun, 2021
Sophie Marwieh James Vp Water Qual & Envir Affairs 6,604 09 Dec, 2025
Charles R. Patton 6,215 06 Mar, 2025
Jeffrey Kightlinger 5,518 06 Mar, 2025
James Patrick Lynch Svp Cfo And Treasurer 4,619 11 Dec, 2025
Thomas A Scanlon Corporate Controller & Pao 3,975 09 Dec, 2025
Kenneth G Jenkins Vp Water Res Plan & Sustain 3,756 09 Dec, 2025
Shawn C Bunting Sr. Vp And Gc And Business Dev 3,304 09 Dec, 2025
David B Healey Vp And Ceo And Treasurer 2,381 05 Mar, 2024
Kristen A Hamner Vp And Chief Human Resource Offcr 1,378 05 Mar, 2025

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
23 Dec, 2025 Michelle R Mortensen Common Stock D 924 $43.34 11,512 D S
10 Dec, 2025 James Patrick Lynch Common Stock A 550 $42.80 4,619 D P
07 Dec, 2025 Martin A Kropelnicki Common Stock D 385 $44.88 136,254 D F
07 Dec, 2025 Michael B Luu Common Stock D 54 $44.88 22,611 D D
07 Dec, 2025 Michelle R Mortensen Common Stock D 57 $44.88 12,436 D F
07 Dec, 2025 Shannon C Dean Common Stock D 57 $44.88 22,166 D F
07 Dec, 2025 Elissa Y Ouyang Common Stock D 52 $44.88 13,445 D F
07 Dec, 2025 Greg A Milleman Common Stock D 51 $44.88 11,553 D F
07 Dec, 2025 Michael S Jr Mares Common Stock D 53 $44.88 10,710 D F
07 Dec, 2025 Thomas A Scanlon Common Stock D 23 $44.88 3,975 D F
07 Dec, 2025 Shawn C Bunting Common Stock D 45 $44.88 3,304 D F
07 Dec, 2025 Kenneth G Jenkins Common Stock D 29 $44.88 3,756 D F
07 Dec, 2025 Sophie Marwieh James Common Stock D 24 $44.88 6,604 D F
05 Dec, 2025 Martin A Kropelnicki Common Stock D 492 $44.88 139,639 D F
05 Dec, 2025 Martin A Kropelnicki Common Stock D 3,000 $0.00 136,639 D G
05 Dec, 2025 James Patrick Lynch Common Stock D 48 $44.88 4,069 D F
05 Dec, 2025 Michael B Luu Common Stock D 69 $44.88 22,665 D F
05 Dec, 2025 Michelle R Mortensen Common Stock D 73 $44.88 12,493 D F
05 Dec, 2025 Shannon C Dean Common Stock D 73 $44.88 22,223 D F
05 Dec, 2025 Elissa Y Ouyang Common Stock D 66 $44.88 13,497 D F