Updated Jul 16, 2026 · Last SEC filing 2026-06-08
CALIFORNIA WATER SERVICE GROUP (CWT) has filed 16 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-06-08. 5 Form 8-K material event filings were reported by CWT in the last 90 days. 1 Form 144 notices of proposed sale were filed for CWT stock. InsiderAlpha tracks every CWT SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SEC CIK | 0001035201 |
|---|
| Form 4 filings (90d) | 16 |
|---|---|
| Form 8-K filings (90d) | 5 |
| Form 144 notices (90d) | 1 |
| Latest Form 4 filing | 2026-06-08 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Peters Todd Kenneth | Vice President, Engineering | F — Tax withholding / forfeiture | 40 | $45.82 | $2K | SEC | |
| Mares Michael S JR | SVP Operations | F — Tax withholding / forfeiture | 68 | $45.82 | $3K | SEC | |
| Jenkins Kenneth G | VP Water Res Plan & Sustain | F — Tax withholding / forfeiture | 38 | $45.82 | $2K | SEC | |
| Scanlon Thomas A | VP, Corporate Controller & PAO | F — Tax withholding / forfeiture | 30 | $45.82 | $1K | SEC | |
| Mortensen Michelle R | VP Corp Sect, Gov & Assurance | F — Tax withholding / forfeiture | 73 | $45.82 | $3K | SEC | |
| Milleman Greg A | VP Rates & Regulatory Affairs | F — Tax withholding / forfeiture | 66 | $45.82 | $3K | SEC | |
| Lynch James Patrick | SVP CFO and Treasurer | F — Tax withholding / forfeiture | 49 | $45.82 | $2K | SEC | |
| KROPELNICKI MARTIN A | Chairman President & CEO | F — Tax withholding / forfeiture | 493 | $45.82 | $23K | SEC | |
| James Sophie Marwieh | VP Water Qual | F — Tax withholding / forfeiture | 50 | $45.82 | $2K | SEC | |
| Luu Michael B | SVP Corp Svce & Chief Risk Of | F — Tax withholding / forfeiture | 69 | $45.82 | $3K | SEC | |
| Ouyang Elissa Y | VP Facilities Fleet Procure IT | F — Tax withholding / forfeiture | 66 | $45.82 | $3K | SEC | |
| Dean Shannon C | SR. VP, Cust Svc & Chief Sust | F — Tax withholding / forfeiture | 73 | $45.82 | $3K | SEC | |
| Bunting Shawn C | Sr. VP, GC and Business Dev | F — Tax withholding / forfeiture | 69 | $45.82 | $3K | SEC | |
| Mares Michael S JR | SVP Operations | F — Tax withholding / forfeiture | 69 | $45.24 | $3K | SEC | |
| Dean Shannon C | SR. VP, Cust Svc & Chief Sust | F — Tax withholding / forfeiture | 74 | $45.24 | $3K | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for CALIFORNIA WATER SERVICE GROUP (CWT). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| James Sophie Marwieh | 2 | $5K |
| Dean Shannon C | 2 | $7K |
| Jenkins Kenneth G | 2 | $5K |
| KROPELNICKI MARTIN A | 2 | $45K |
| Bunting Shawn C | 2 | $6K |
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in CWT insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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