California Water Service Group (CWT) has 20 known insider and institutional holders on record. The largest holder is KROPELNICKI MARTIN A with 146,523 shares. Other notable holders include Smegal Thomas F III and Townsley Paul G..
Over the last 12 months, insiders have made 138 transactions in CWT stock — 25 buys (valued at $23.54K) and 4 sells (valued at $300.06K). Insider buying has outpaced selling during this period, which may signal confidence in the company's prospects.
CWT Insider Ownership
Top Holder
KROPELNICKI MARTIN A
146,523 shares
Buys (12 mo)
25
$23.54K value
Sells (12 mo)
4
$300.06K value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Kropelnicki Martin A |
Chairman President & CEO |
146,523 |
2026-03-09 |
|
| 2 |
Smegal Thomas F Iii |
VP, CFO & Treasurer |
46,831 |
2023-06-05 |
|
| 3 |
Townsley Paul G. |
VP, Rates & Reg Matters |
31,100 |
2023-06-05 |
|
| 4 |
Krummel Thomas M |
Director |
27,505 |
2026-03-05 |
|
| 5 |
Mcghee Lynne P |
VP, General Counsel |
27,039 |
2023-06-05 |
|
| 6 |
Webb Ronald D |
VP, Human Resources |
26,580 |
2025-03-11 |
|
| 7 |
Aliff Gregory E |
Director |
26,395 |
2026-03-05 |
|
| 8 |
Luu Michael B |
Sr. VP Corp Svcs & Chief Risk |
23,655 |
2026-03-24 |
|
| 9 |
Dean Shannon C |
Sr. VP, Cust Svc & Chief Sust |
23,509 |
2026-03-09 |
|
| 10 |
Nelson Peter C |
Director |
20,420 |
2023-03-09 |
|
| 11 |
Snow Lester A |
Director |
19,416 |
2026-03-05 |
|
| 12 |
Pottenger Carol M |
Director |
19,187 |
2026-03-05 |
|
| 13 |
Esque Shelly Marian |
Director |
18,331 |
2026-03-05 |
|
| 14 |
Bayer Terry |
Director |
16,257 |
2022-03-03 |
|
| 15 |
Wagner Patricia K |
Director |
15,214 |
2026-03-05 |
|
| 16 |
Morris Scott L |
Director |
15,209 |
2026-03-05 |
|
| 17 |
Treloar Timothy D |
VP, Ops and Water Quality |
14,907 |
2019-12-09 |
|
| 18 |
Ouyang Elissa Y |
VP Facilities Fleet & Procure |
14,711 |
2026-03-09 |
|
| 19 |
Milleman Greg A |
VP Rates & Regulatory Affairs |
13,030 |
2026-03-09 |
|
| 20 |
Kuta Robert J |
VP, Engineering |
12,861 |
2023-06-05 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-03-20 |
Mares Michael S Jr |
Vice President, Operations |
Informative Sell |
3,892 |
$44.00 |
$171.25K |
| 2026-03-20 |
Luu Michael B |
Sr. VP Corp Svcs & Chief Risk |
Informative Sell |
740 |
$44.53 |
$32.95K |
| 2026-03-07 |
James Sophie Marwieh |
VP Water Qual & Envir Affairs |
Tax Withholding of RSU |
27 |
$45.59 |
$1.23K |
| 2026-03-05 |
James Sophie Marwieh |
VP Water Qual & Envir Affairs |
Tax Withholding of RSU |
57 |
$45.78 |
$2.61K |
| 2026-03-07 |
Jenkins Kenneth G |
VP Water Res Plan & Sustain |
Tax Withholding of RSU |
33 |
$45.59 |
$1.5K |
| 2026-03-05 |
Jenkins Kenneth G |
VP Water Res Plan & Sustain |
Tax Withholding of RSU |
42 |
$45.78 |
$1.92K |
| 2026-03-07 |
Bunting Shawn C |
Sr. VP, Gc and Business Dev |
Tax Withholding of RSU |
49 |
$45.59 |
$2.23K |
| 2026-03-05 |
Bunting Shawn C |
Sr. VP, Gc and Business Dev |
Tax Withholding of RSU |
76 |
$45.78 |
$3.48K |
| 2026-03-07 |
Peters Todd Kenneth |
Vice President, Engineering |
Tax Withholding of RSU |
34 |
$45.59 |
$1.55K |
| 2026-03-05 |
Peters Todd Kenneth |
Vice President, Engineering |
Tax Withholding of RSU |
44 |
$45.78 |
$2.01K |
| 2026-03-07 |
Scanlon Thomas A |
VP, Corporate Controller & CAO |
Tax Withholding of RSU |
26 |
$45.59 |
$1.19K |
| 2026-03-05 |
Scanlon Thomas A |
VP, Corporate Controller & CAO |
Tax Withholding of RSU |
34 |
$45.78 |
$1.56K |
| 2026-03-07 |
Mares Michael S Jr |
SVP Operations |
Tax Withholding of RSU |
58 |
$45.59 |
$2.64K |
| 2026-03-05 |
Mares Michael S Jr |
SVP Operations |
Tax Withholding of RSU |
75 |
$45.78 |
$3.43K |
| 2026-03-07 |
Milleman Greg A |
VP Rates & Regulatory Affairs |
Tax Withholding of RSU |
57 |
$45.59 |
$2.6K |
| 2026-03-05 |
Milleman Greg A |
VP Rates & Regulatory Affairs |
Tax Withholding of RSU |
73 |
$45.78 |
$3.34K |
| 2026-03-07 |
Ouyang Elissa Y |
VP Facilities Fleet & Procure |
Tax Withholding of RSU |
57 |
$45.59 |
$2.6K |
| 2026-03-05 |
Ouyang Elissa Y |
VP Facilities Fleet & Procure |
Tax Withholding of RSU |
74 |
$45.78 |
$3.39K |
| 2026-03-07 |
Dean Shannon C |
Sr. VP, Cust Svc & Chief Sust |
Tax Withholding of RSU |
62 |
$45.59 |
$2.83K |
| 2026-03-05 |
Dean Shannon C |
Sr. VP, Cust Svc & Chief Sust |
Tax Withholding of RSU |
80 |
$45.78 |
$3.66K |
| 2026-03-07 |
Mortensen Michelle R |
VP Corp Sect & Chief of Staff |
Tax Withholding of RSU |
63 |
$45.59 |
$2.87K |
| 2026-03-05 |
Mortensen Michelle R |
VP Corp Sect & Chief of Staff |
Tax Withholding of RSU |
80 |
$45.78 |
$3.66K |
| 2026-03-07 |
Luu Michael B |
SVP Corp Svce & Chief Risk Of |
Tax Withholding of RSU |
504 |
$45.59 |
$22.98K |
| 2026-03-05 |
Luu Michael B |
SVP Corp Svce & Chief Risk Of |
Tax Withholding of RSU |
76 |
$45.78 |
$3.48K |
| 2026-03-05 |
Lynch James Patrick |
SVP CFO and Treasurer |
Tax Withholding of RSU |
56 |
$45.78 |
$2.56K |
