CWT insider transaction filings
CALIFORNIA WATER SERVICE GROUP — 50 most recent Form 4 filings from SEC EDGAR, normalized by FilingPulse. Latest filing: 2026-09-08. Screen CWT transaction legs live →
Insider transaction summary — last 90 days
2026-06-24 to 2026-09-22, from the filings listed below: 16 Form 4 filings. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): 2 legs across 2 filings by 2 insiders — 4,200 shares, $211,456 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 26.
- Largest priced transaction: sale of 3,700 shares @ $50.37 ($186,350) by Krummel Thomas M, filed 2026-08-14.
By insider — same window
Open-market purchase/sale legs on non-derivative securities, grouped by the filing's reporting owner(s); joint filings appear once. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Insider | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|
| Krummel Thomas M — Director | 1 | — | 1 leg · 3,700 sh · $186,350 | — |
| Snow Lester A — Director | 1 | — | 1 leg · 500 sh · $25,105 | — |
| Bunting Shawn C — SVP, Chief Legal Officer & BD | 1 | — | — | 2 |
| Dean Shannon C — SVP, Cust Svc & Chief Sust Of | 1 | — | — | 2 |
| James Sophie Marwieh — VP Water Qual | 1 | — | — | 2 |
| Jenkins Kenneth G — VP Water Res Plan & Sustain | 1 | — | — | 2 |
| KROPELNICKI MARTIN A — Chairman President & CEO | 1 | — | — | 2 |
| Luu Michael B — SVP Corp Svce & Chief Risk Of | 1 | — | — | 2 |
| Lynch James Patrick — SVP CFO and Treasurer | 1 | — | — | 2 |
| Mares Michael S JR — SVP Operations | 1 | — | — | 2 |
+6 more insiders in the window, not shown — every filing appears in the table below.
Recent Form 4 filings — CALIFORNIA WATER SERVICE GROUP
| Filed | Form | Insider | Reported transactions | Source |
|---|---|---|---|---|
| 2026-09-08 | 4 | Peters Todd Kenneth — Vice President, Engineering | Tax withholding (F): 41 @ $50.03 · Tax withholding (F): 40 @ $50.03 | EDGAR |
| 2026-09-08 | 4 | Scanlon Thomas A — VP, Corporate Controller & PAO | Tax withholding (F): 30 @ $50.03 · Tax withholding (F): 30 @ $50.03 | EDGAR |
| 2026-09-08 | 4 | Mares Michael S JR — SVP Operations | Tax withholding (F): 69 @ $50.03 · Tax withholding (F): 67 @ $50.03 | EDGAR |
| 2026-09-08 | 4 | Mortensen Michelle R — VP Corp Sect, Gov & Assurance | Tax withholding (F): 75 @ $50.03 · Tax withholding (F): 73 @ $50.03 | EDGAR |
| 2026-09-08 | 4 | Ouyang Elissa Y — VP Facilities Fleet Procure IT | Tax withholding (F): 68 @ $50.03 · Tax withholding (F): 66 @ $50.03 | EDGAR |
| 2026-09-08 | 4 | Luu Michael B — SVP Corp Svce & Chief Risk Of | Tax withholding (F): 70 @ $50.03 · Tax withholding (F): 68 @ $50.03 | EDGAR |
| 2026-09-08 | 4 | Lynch James Patrick — SVP CFO and Treasurer | Tax withholding (F): 50 @ $50.03 · Tax withholding (F): 48 @ $50.03 | EDGAR |
| 2026-09-08 | 4 | KROPELNICKI MARTIN A — Chairman President & CEO | Tax withholding (F): 505 @ $50.03 · Tax withholding (F): 493 @ $50.03 | EDGAR |
| 2026-09-08 | 4 | Jenkins Kenneth G — VP Water Res Plan & Sustain | Tax withholding (F): 64 @ $50.03 · Tax withholding (F): 38 @ $50.03 | EDGAR |
| 2026-09-08 | 4 | HAMNER KRISTAN A — VP, Chief Human Resource Offcr | Tax withholding (F): 42 @ $50.03 | EDGAR |
| 2026-09-08 | 4 | James Sophie Marwieh — VP Water Qual | Tax withholding (F): 51 @ $50.03 · Tax withholding (F): 50 @ $50.03 | EDGAR |
| 2026-09-08 | 4 | Bunting Shawn C — SVP, Chief Legal Officer & BD | Tax withholding (F): 71 @ $50.03 · Tax withholding (F): 69 @ $50.03 | EDGAR |
| 2026-09-08 | 4 | Dean Shannon C — SVP, Cust Svc & Chief Sust Of | Tax withholding (F): 75 @ $50.03 · Tax withholding (F): 72 @ $50.03 | EDGAR |
| 2026-09-01 | 4 | Snow Lester A — Director | Sale (S): 500 @ $50.21 | EDGAR |
| 2026-08-14 | 4 | Krummel Thomas M — Director | Sale (S): 3,700 @ $50.37 | EDGAR |
| 2026-08-05 | 4 | Shimansky Gregory Dale — VP, Rates & Reg Affairs | Grant/award (A): 446 @ $0 | EDGAR |
| 2026-06-08 | 4 | HAMNER KRISTAN A — VP, Chief Human Resource Offcr | Tax withholding (F): 41 @ $45.24 | EDGAR |
| 2026-06-08 | 4 | James Sophie Marwieh — VP Water Qual | Tax withholding (F): 51 @ $45.24 · Tax withholding (F): 50 @ $45.82 | EDGAR |
| 2026-06-08 | 4 | Jenkins Kenneth G — VP Water Res Plan & Sustain | Tax withholding (F): 63 @ $45.24 · Tax withholding (F): 38 @ $45.82 | EDGAR |
| 2026-06-08 | 4 | Bunting Shawn C — Sr. VP, GC and Business Dev | Tax withholding (F): 70 @ $45.24 · Tax withholding (F): 69 @ $45.82 | EDGAR |
| 2026-06-08 | 4 | Peters Todd Kenneth — Vice President, Engineering | Tax withholding (F): 40 @ $45.24 · Tax withholding (F): 40 @ $45.82 | EDGAR |
| 2026-06-08 | 4 | Scanlon Thomas A — VP, Corporate Controller & PAO | Tax withholding (F): 30 @ $45.24 · Tax withholding (F): 30 @ $45.82 | EDGAR |
| 2026-06-08 | 4 | Mares Michael S JR — SVP Operations | Tax withholding (F): 69 @ $45.24 · Tax withholding (F): 68 @ $45.82 | EDGAR |
| 2026-06-08 | 4 | Milleman Greg A — VP Rates & Regulatory Affairs | Tax withholding (F): 67 @ $45.24 · Tax withholding (F): 66 @ $45.82 | EDGAR |
| 2026-06-08 | 4 | Ouyang Elissa Y — VP Facilities Fleet Procure IT | Tax withholding (F): 67 @ $45.24 · Tax withholding (F): 66 @ $45.82 | EDGAR |
| 2026-06-08 | 4 | Dean Shannon C — SR. VP, Cust Svc & Chief Sust | Tax withholding (F): 74 @ $45.24 · Tax withholding (F): 73 @ $45.82 | EDGAR |
| 2026-06-08 | 4 | Mortensen Michelle R — VP Corp Sect, Gov & Assurance | Tax withholding (F): 74 @ $45.24 · Tax withholding (F): 73 @ $45.82 | EDGAR |
| 2026-06-08 | 4 | Luu Michael B — SVP Corp Svce & Chief Risk Of | Tax withholding (F): 70 @ $45.24 · Tax withholding (F): 69 @ $45.82 | EDGAR |
| 2026-06-08 | 4 | Lynch James Patrick — SVP CFO and Treasurer | Tax withholding (F): 49 @ $45.24 · Tax withholding (F): 49 @ $45.82 | EDGAR |
| 2026-06-08 | 4 | KROPELNICKI MARTIN A — Chairman President & CEO | Tax withholding (F): 504 @ $45.24 · Tax withholding (F): 493 @ $45.82 | EDGAR |
| 2026-05-27 | 4 | Snow Lester A — Director | Sale (S): 1,100 @ $44 | EDGAR |
| 2026-05-21 | 4 | Krummel Thomas M — Director | Sale (S): 3,700 @ $43.30 | EDGAR |
| 2026-03-24 | 4 | Luu Michael B — Sr. VP Corp Svcs & Chief Risk | Sale (S): 739.85 @ $44.53 | EDGAR |
| 2026-03-24 | 4 | Mares Michael S JR — Vice President, Operations | Sale (S): 3,892 @ $44 | EDGAR |
| 2026-03-09 | 4 | James Sophie Marwieh — VP Water Qual & Envir Affairs | Tax withholding (F): 57 @ $45.78 · Grant/award (A): 548 @ $0 · Tax withholding (F): 232 @ $45.59 · Tax withholding (F): 27 @ $45.59 | EDGAR |
| 2026-03-09 | 4 | Jenkins Kenneth G — VP Water Res Plan & Sustain | Tax withholding (F): 42 @ $45.78 · Grant/award (A): 548 @ $0 · Tax withholding (F): 281 @ $45.59 · Tax withholding (F): 33 @ $45.59 | EDGAR |
| 2026-03-09 | 4 | Bunting Shawn C — Sr. VP, GC and Business Dev | Tax withholding (F): 76 @ $45.78 · Grant/award (A): 750 @ $0 · Tax withholding (F): 422 @ $45.59 · Tax withholding (F): 49 @ $45.59 | EDGAR |
| 2026-03-09 | 4 | Peters Todd Kenneth — Vice President, Engineering | Tax withholding (F): 44 @ $45.78 · Grant/award (A): 548 @ $0 · Tax withholding (F): 296 @ $45.59 · Tax withholding (F): 34 @ $45.59 | EDGAR |
| 2026-03-09 | 4 | Scanlon Thomas A — VP, Corporate Controller & CAO | Tax withholding (F): 34 @ $45.78 · Grant/award (A): 548 @ $0 · Tax withholding (F): 226 @ $45.59 · Tax withholding (F): 26 @ $45.59 | EDGAR |
| 2026-03-09 | 4 | Mares Michael S JR — SVP Operations | Tax withholding (F): 75 @ $45.78 · Grant/award (A): 900 @ $0 · Tax withholding (F): 495 @ $45.59 · Tax withholding (F): 58 @ $45.59 | EDGAR |
| 2026-03-09 | 4 | Milleman Greg A — VP Rates & Regulatory Affairs | Tax withholding (F): 73 @ $45.78 · Grant/award (A): 900 @ $0 · Tax withholding (F): 486 @ $45.59 · Tax withholding (F): 57 @ $45.59 | EDGAR |
| 2026-03-09 | 4 | Ouyang Elissa Y — VP Facilities Fleet & Procure | Tax withholding (F): 74 @ $45.78 · Grant/award (A): 900 @ $0 · Tax withholding (F): 488 @ $45.59 · Tax withholding (F): 57 @ $45.59 | EDGAR |
| 2026-03-09 | 4 | Dean Shannon C — SR. VP, Cust Svc & Chief Sust | Tax withholding (F): 80 @ $45.78 · Grant/award (A): 900 @ $0 · Tax withholding (F): 531 @ $45.59 · Tax withholding (F): 62 @ $45.59 | EDGAR |
| 2026-03-09 | 4 | Mortensen Michelle R — VP Corp Sect & Chief of Staff | Tax withholding (F): 80 @ $45.78 · Grant/award (A): 900 @ $0 · Tax withholding (F): 534 @ $45.59 · Tax withholding (F): 63 @ $45.59 | EDGAR |
| 2026-03-09 | 4 | Luu Michael B — SVP Corp Svce & Chief Risk Of | Tax withholding (F): 76 @ $45.78 · Grant/award (A): 900 @ $0 · Tax withholding (F): 504 @ $45.59 · Grant/award (A): 205 @ $0 · Tax withholding (F): 115 @ $45.59 · Tax withholding (F): 59 @ $45.59 | EDGAR |
| 2026-03-09 | 4 | Lynch James Patrick — SVP CFO and Treasurer | Tax withholding (F): 56 @ $45.78 | EDGAR |
| 2026-03-09 | 4 | KROPELNICKI MARTIN A — Chairman President & CEO | Tax withholding (F): 493 @ $45.78 · Grant/award (A): 6,507 @ $0 · Tax withholding (F): 3,817 @ $45.59 · Tax withholding (F): 385 @ $45.59 | EDGAR |
| 2026-03-05 | 4 | Patton Charles R. — Director | Grant/award (A): 2,816 @ $0 | EDGAR |
| 2026-03-05 | 4 | KROPELNICKI MARTIN A — Chairman President & CEO | Grant/award (A): 10,295 @ $0 · Tax withholding (F): 2,017 @ $46.99 | EDGAR |
| 2026-03-05 | 4 | MORRIS SCOTT L — Director | Grant/award (A): 2,816 @ $0 | EDGAR |
Recent 8-K events — CALIFORNIA WATER SERVICE GROUP
| Filed | Form | Items reported | Source |
|---|---|---|---|
| 2026-07-30 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-07-29 | 8-K | 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-05-21 | 8-K | 5.07 — Submission of Matters to a Vote of Security Holders | EDGAR |
| 2026-05-20 | 8-K | 7.01 — Regulation FD Disclosure 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-05-01 | 8-K | 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-04-30 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-04-29 | 8-K | 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-03-18 | 8-K | 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-03-05 | 8-K | 7.01 — Regulation FD Disclosure | EDGAR |
| 2026-02-25 | 8-K | 2.02 — Results of Operations and Financial Condition 7.01 — Regulation FD Disclosure 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
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