27 insiders reported 274 Form 4 transactions for CALIFORNIA WATER SERVICE GROUP (CWT) over the past 18 months (most recent 2026-08-14). Recent activity: Krummel Thomas M (Director) Sell 3,700 shares, Shimansky Gregory Dale (VP, Rates & Reg Affairs) Buy 446 shares, Ouyang Elissa Y (VP Facilities Fleet Procure IT) Sell 67 shares, James Sophie Marwieh (VP Water Qual) Sell 51 shares, Lynch James Patrick (SVP CFO and Treasurer) Sell 49 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-14 | Krummel Thomas M | Director | Sell | 3,700 | $186,350 |
| 2026-08-05 | Shimansky Gregory Dale | VP, Rates & Reg Affairs | Buy | 446 | $0 |
| 2026-06-08 | Ouyang Elissa Y | VP Facilities Fleet Procure IT | Sell | 67 | $3,031 |
| 2026-06-08 | James Sophie Marwieh | VP Water Qual | Sell | 51 | $2,307 |
| 2026-06-08 | Lynch James Patrick | SVP CFO and Treasurer | Sell | 49 | $2,217 |
| 2026-06-08 | Jenkins Kenneth G | VP Water Res Plan & Sustain | Sell | 63 | $2,850 |
| 2026-06-08 | Luu Michael B | SVP Corp Svce & Chief Risk Of | Sell | 70 | $3,167 |
| 2026-06-08 | Bunting Shawn C | Sr. VP, GC and Business Dev | Sell | 70 | $3,167 |
| 2026-06-08 | Mortensen Michelle R | VP Corp Sect, Gov & Assurance | Sell | 74 | $3,348 |
| 2026-06-08 | HAMNER KRISTAN A | VP, Chief Human Resource Offcr | Sell | 41 | $1,855 |
| 2026-06-08 | Dean Shannon C | SR. VP, Cust Svc & Chief Sust | Sell | 74 | $3,348 |
| 2026-06-08 | KROPELNICKI MARTIN A | Chairman President & CEO | Sell | 504 | $22,801 |
| 2026-06-08 | Mares Michael S JR | SVP Operations | Sell | 69 | $3,122 |
| 2026-06-08 | Peters Todd Kenneth | Vice President, Engineering | Sell | 40 | $1,810 |
| 2026-06-08 | Milleman Greg A | VP Rates & Regulatory Affairs | Sell | 67 | $3,031 |
| 2026-06-08 | Scanlon Thomas A | VP, Corporate Controller & PAO | Sell | 30 | $1,357 |
| 2026-06-08 | Milleman Greg A | VP Rates & Regulatory Affairs | Sell | 66 | $3,024 |
| 2026-06-08 | Mares Michael S JR | SVP Operations | Sell | 68 | $3,116 |
| 2026-06-08 | Ouyang Elissa Y | VP Facilities Fleet Procure IT | Sell | 66 | $3,024 |
| 2026-06-08 | Scanlon Thomas A | VP, Corporate Controller & PAO | Sell | 30 | $1,375 |
| 2026-06-08 | Dean Shannon C | SR. VP, Cust Svc & Chief Sust | Sell | 73 | $3,345 |
| 2026-06-08 | Peters Todd Kenneth | Vice President, Engineering | Sell | 40 | $1,833 |
| 2026-06-08 | Luu Michael B | SVP Corp Svce & Chief Risk Of | Sell | 69 | $3,162 |
| 2026-06-08 | KROPELNICKI MARTIN A | Chairman President & CEO | Sell | 493 | $22,589 |
| 2026-06-08 | Lynch James Patrick | SVP CFO and Treasurer | Sell | 49 | $2,245 |
Source: SEC Form 4 filings · as of 2026-08-14