CWT · California Water Service Group

$51.88 +0.54 (+1.05%) At close · Jul 17

Market Cap

$3.11B

59,853,262

Trades by corporate insiders — officers, directors and holders of more than 10% of the shares — disclosed to the SEC on Forms 3, 4 and 5. Form 4 must be filed within two business days of the trade.

Insider Sentiment Score

Peer-relative 0–100 rank of how aggressively insiders accumulated over the trailing 90 days. See the full ranking.

Net buyers

-2

Net shares bought

-0.01%

Net buy value

-$208,614

Date	Insider	Role	Type	Security	Shares	Price	Value	After
2026-06-05	Peters Todd Kenneth	Vice President, Engineering	Tax↓ Filing footnotes — Common Stock (Direct) Represents the number of shares withheld and surrendered to the issuer to satisfy the tax withholding obligations that arose in connection with the vesting of Restricted Stock (RSA) Award granted on June 5, 2024.	Common Stock	40	$45.82	$1,833	8,340
2026-06-05	Jenkins Kenneth G	VP Water Res Plan & Sustain	Tax↓ Filing footnotes — Common Stock (Direct) Represents the number of shares withheld and surrendered to the issuer to satisfy the tax withholding obligations that arose in connection with the vesting of Restricted Stock (RSA) Award granted on June 5, 2024.	Common Stock	38	$45.82	$1,741	5,228
2026-06-05	Lynch James Patrick	SVP CFO and Treasurer	Tax↓ Filing footnotes — Common Stock (Direct) Represents the number of shares withheld and surrendered to the issuer to satisfy the tax withholding obligations that arose in connection with the vesting of Restricted Stock (RSA) Award granted on June 5, 2024.	Common Stock	49	$45.82	$2,245	6,583
2026-06-05	Bunting Shawn C	Sr. VP, GC and Business Dev	Tax↓ Filing footnotes — Common Stock (Direct) Represents the number of shares withheld and surrendered to the issuer to satisfy the tax withholding obligations that arose in connection with the vesting of Restricted Stock (RSA) Award granted on June 5, 2024.	Common Stock	69	$45.82	$3,162	4,714
2026-06-05	Scanlon Thomas A	VP, Corporate Controller & CAO	Tax↓ Filing footnotes — Common Stock (Direct) Represents the number of shares withheld and surrendered to the issuer to satisfy the tax withholding obligations that arose in connection with the vesting of Restricted Stock (RSA) Award granted on June 5, 2024.	Common Stock	30	$45.82	$1,375	5,723
2026-06-05	James Sophie Marwieh	VP Water Qual & Envir Affairs	Tax↓ Filing footnotes — Common Stock (Direct) Represents the number of shares withheld and surrendered to the issuer to satisfy the tax withholding obligations that arose in connection with the vesting of Restricted Stock (RSA) Award granted on June 5, 2024.	Common Stock	50	$45.82	$2,291	8,321
2026-06-05	KROPELNICKI MARTIN A	Chairman President & CEO	Tax↓ Filing footnotes — Common Stock (Direct) Represents the number of shares withheld and surrendered to the issuer to satisfy the tax withholding obligations that arose in connection with the vesting of Restricted Stock (RSA) Award granted on June 5, 2024.	Common Stock	493	$45.82	$22,589	148,284
2026-06-05	Mares Michael S JR	Vice President, Operations	Tax↓ Filing footnotes — Common Stock (Direct) Represents the number of shares withheld and surrendered to the issuer to satisfy the tax withholding obligations that arose in connection with the vesting of Restricted Stock (RSA) Award granted on June 5, 2024.	Common Stock	68	$45.82	$3,116	8,387
2026-06-05	Mortensen Michelle R	VP Corp Sect & Chief of Staff	Tax↓ Filing footnotes — Common Stock (Direct) Represents the number of shares withheld and surrendered to the issuer to satisfy the tax withholding obligations that arose in connection with the vesting of Restricted Stock (RSA) Award granted on June 5, 2024.	Common Stock	73	$45.82	$3,345	12,953
2026-06-05	Milleman Greg A	VP Rates & Regulatory Affairs	Tax↓ Filing footnotes — Common Stock (Direct) Represents the number of shares withheld and surrendered to the issuer to satisfy the tax withholding obligations that arose in connection with the vesting of Restricted Stock (RSA) Award granted on June 5, 2024.	Common Stock	66	$45.82	$3,024	13,708
2026-06-05	Luu Michael B	Sr. VP Corp Svcs & Chief Risk	Tax↓ Filing footnotes — Common Stock (Direct) Represents the number of shares withheld and surrendered to the issuer to satisfy the tax withholding obligations that arose in connection with the vesting of Restricted Stock (RSA) Award granted on June 5, 2024.	Common Stock	69	$45.82	$3,162	23,806
2026-06-05	Dean Shannon C	SR. VP, Cust Svc & Chief Sust	Tax↓ Filing footnotes — Common Stock (Direct) Represents the number of shares withheld and surrendered to the issuer to satisfy the tax withholding obligations that arose in connection with the vesting of Restricted Stock (RSA) Award granted on June 5, 2024.	Common Stock	73	$45.82	$3,345	23,741
2026-06-05	Ouyang Elissa Y	VP Facilities Fleet & Procure	Tax↓ Filing footnotes — Common Stock (Direct) Represents the number of shares withheld and surrendered to the issuer to satisfy the tax withholding obligations that arose in connection with the vesting of Restricted Stock (RSA) Award granted on June 5, 2024.	Common Stock	66	$45.82	$3,024	14,939
2026-06-04	James Sophie Marwieh	VP Water Qual & Envir Affairs	Tax↓ Filing footnotes — Common Stock (Direct) Represents the number of shares withheld and surrendered to the issuer to satisfy the tax withholding obligations that arose in connection with the vesting of Restricted Stock (RSA) Award granted on March 4,2025 Includes shares acquired through the Employee Stock Purchase Program (ESPP).	Common Stock	51	$45.24	$2,307	8,371
2026-06-04	Bunting Shawn C	Sr. VP, GC and Business Dev	Tax↓ Filing footnotes — Common Stock (Direct) Represents the number of shares withheld and surrendered to the issuer to satisfy the tax withholding obligations that arose in connection with the vesting of Restricted Stock (RSA) Award granted on March 4,2025	Common Stock	70	$45.24	$3,167	4,783
2026-06-04	Mares Michael S JR	Vice President, Operations	Tax↓ Filing footnotes — Common Stock (Direct) Represents the number of shares withheld and surrendered to the issuer to satisfy the tax withholding obligations that arose in connection with the vesting of Restricted Stock (RSA) Award granted on March 4,2025	Common Stock	69	$45.24	$3,122	8,455
2026-06-04	Lynch James Patrick	SVP CFO and Treasurer	Tax↓ Filing footnotes — Common Stock (Direct) Represents the number of shares withheld and surrendered to the issuer to satisfy the tax withholding obligations that arose in connection with the vesting of Restricted Stock (RSA) Award granted on March 4,2025 Includes shares acquired through the Employee Stock Purchase Program (ESPP).	Common Stock	49	$45.24	$2,217	6,632
2026-06-04	Dean Shannon C	SR. VP, Cust Svc & Chief Sust	Tax↓ Filing footnotes — Common Stock (Direct) Represents the number of shares withheld and surrendered to the issuer to satisfy the tax withholding obligations that arose in connection with the vesting of Restricted Stock (RSA) Award granted on March 4,2025 Includes shares acquired through the Employee Stock Purchase Program (ESPP).	Common Stock	74	$45.24	$3,348	23,814
2026-06-04	Peters Todd Kenneth	Vice President, Engineering	Tax↓ Filing footnotes — Common Stock (Direct) Represents the number of shares withheld and surrendered to the issuer to satisfy the tax withholding obligations that arose in connection with the vesting of Restricted Stock (RSA) Award granted on March 4,2025	Common Stock	40	$45.24	$1,810	8,380
2026-06-04	KROPELNICKI MARTIN A	Chairman President & CEO	Tax↓ Filing footnotes — Common Stock (Direct) Represents the number of shares withheld and surrendered to the issuer to satisfy the tax withholding obligations that arose in connection with the vesting of Restricted Stock (RSA) Award granted on March 4,2025 Includes shares acquired through the Employee Stock Purchase Program (ESPP).	Common Stock	504	$45.24	$22,801	148,777
2026-06-04	Mortensen Michelle R	VP Corp Sect & Chief of Staff	Tax↓ Filing footnotes — Common Stock (Direct) Represents the number of shares withheld and surrendered to the issuer to satisfy the tax withholding obligations that arose in connection with the vesting of Restricted Stock (RSA) Award granted on March 4,2025	Common Stock	74	$45.24	$3,348	13,026
2026-06-04	Luu Michael B	Sr. VP Corp Svcs & Chief Risk	Tax↓ Filing footnotes — Common Stock (Direct) Represents the number of shares withheld and surrendered to the issuer to satisfy the tax withholding obligations that arose in connection with the vesting of Restricted Stock (RSA) Award granted on March 4,2025 Includes shares acquired through the Employee Stock Purchase Program (ESPP).	Common Stock	70	$45.24	$3,167	23,875
2026-06-04	Jenkins Kenneth G	VP Water Res Plan & Sustain	Tax↓ Filing footnotes — Common Stock (Direct) Represents the number of shares withheld and surrendered to the issuer to satisfy the tax withholding obligations that arose in connection with the vesting of Restricted Stock (RSA) Award granted on March 4,2025	Common Stock	63	$45.24	$2,850	5,266
2026-06-04	Ouyang Elissa Y	VP Facilities Fleet & Procure	Tax↓ Filing footnotes — Common Stock (Direct) Represents the number of shares withheld and surrendered to the issuer to satisfy the tax withholding obligations that arose in connection with the vesting of Restricted Stock (RSA) Award granted on March 4,2025 Includes shares acquired through the Employee Stock Purchase Program (ESPP).	Common Stock	67	$45.24	$3,031	15,005
2026-06-04	HAMNER KRISTAN A	VP, Chief Human Resource Offcr	Tax↓ Filing footnotes — Common Stock (Direct) Represents the number of shares withheld and surrendered to the issuer to satisfy the tax withholding obligations that arose in connection with the vesting of Restricted Stock (RSA) Award granted on March 4,2025 Includes shares acquired through the Employee Stock Purchase Program (ESPP).	Common Stock	41	$45.24	$1,855	3,003
2026-06-04	Milleman Greg A	VP Rates & Regulatory Affairs	Tax↓ Filing footnotes — Common Stock (Direct) Represents the number of shares withheld and surrendered to the issuer to satisfy the tax withholding obligations that arose in connection with the vesting of Restricted Stock (RSA) Award granted on March 4,2025 Includes shares acquired through the Employee Stock Purchase Program (ESPP).	Common Stock	67	$45.24	$3,031	13,774
2026-06-04	Scanlon Thomas A	VP, Corporate Controller & CAO	Tax↓ Filing footnotes — Common Stock (Direct) Represents the number of shares withheld and surrendered to the issuer to satisfy the tax withholding obligations that arose in connection with the vesting of Restricted Stock (RSA) Award granted on March 4,2025	Common Stock	30	$45.24	$1,357	5,753
2026-05-27	Snow Lester A	Director	Sell↓ Filing footnotes — Common Stock (Direct) This transaction was a single trade at a price of $44.00. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.	Common Stock	1,100	$44.00	$48,400	18,316
2026-05-21	Krummel Thomas M	Director	Sell↓ Filing footnotes — Common Stock (Direct) This transaction was executed in multiple trades with a weighted average price of $43.3012. The reporting person hereby undertakes to provide to the SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares and prices at which the transaction was effected.	Common Stock	3,700	$43.30	$160,214	23,805
2026-03-20	Mares Michael S JR	Vice President, Operations	Sell↓ Filing footnotes — Common Stock (Direct) The sale of 3,892 shares executed in multiple transactions with share price of $44.00. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or security holder of the issuer full information regarding the number of shares and price at which the transaction was effected.	Common Stock	3,892	$44.00	$171,248	8,524
2026-03-20	Luu Michael B	Sr. VP Corp Svcs & Chief Risk	Sell↓ Filing footnotes — Common Stock (Direct) The sale of 739.848 shares in multiple transactions with share price between $44.53 and $44.21 with an average price of $44.53. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or security holder of the issuer full information regarding the number of shares and price at which the transaction was effected.	Common Stock	739	$44.53	$32,908	23,654
2026-03-07	Milleman Greg A	VP Rates & Regulatory Affairs	Tax↓ Filing footnotes — Common Stock (Direct) Represents the number of shares withheld by and surrendered to the Issuer to satisfy the tax withholding obligations that arose in connection with the vesting of the Restricted Stock Award (RSA)	Common Stock	57	$45.59	$2,599	13,387
2026-03-07	Dean Shannon C	SR. VP, Cust Svc & Chief Sust	Tax↓ Filing footnotes — Common Stock (Direct) Represents the number of shares withheld by and surrendered to the Issuer to satisfy the tax withholding obligations that arose in connection with the vesting of a Performance Stock Unit (PSU) Award.	Common Stock	531	$45.59	$24,208	23,878
2026-03-07	Ouyang Elissa Y	VP Facilities Fleet & Procure	Tax↓ Filing footnotes — Common Stock (Direct) Represents the number of shares withheld by and surrendered to the Issuer to satisfy the tax withholding obligations that arose in connection with the vesting of the Restricted Stock Award (RSA)	Common Stock	57	$45.59	$2,599	15,066
2026-03-07	Luu Michael B	Sr. VP Corp Svcs & Chief Risk	Tax↓ Filing footnotes — Common Stock (Direct) Represents the number of shares withheld by and surrendered to the Issuer to satisfy the tax withholding obligations that arose in connection with the vesting of the Restricted Stock Award (RSA)	Common Stock	59	$45.59	$2,690	24,394
2026-03-07	Scanlon Thomas A	VP, Corporate Controller & CAO	Tax↓ Filing footnotes — Common Stock (Direct) Represents the number of shares withheld by and surrendered to the Issuer to satisfy the tax withholding obligations that arose in connection with the vesting of a Performance Stock Unit (PSU) Award.	Common Stock	226	$45.59	$10,303	5,809
2026-03-07	Bunting Shawn C	Sr. VP, GC and Business Dev	Award↑ Filing footnotes — Common Stock (Direct) The reporting person was granted a Performance Stock Unit (PSU) award on 3/7/2023. The PSU vested in full based on the satisfaction of certain performance criteria approved by the Board of Directors. The performance criteria was met resulting in 46% payout of the original goal	Common Stock	750	—	—	5,324
2026-03-07	Scanlon Thomas A	VP, Corporate Controller & CAO	Award↑ Filing footnotes — Common Stock (Direct) The reporting person was granted a Performance Stock Unit (PSU) award on 3/7/2023. The PSU vested in full based on the satisfaction of certain performance criteria approved by the Board of Directors. The performance criteria was met resulting in 46% payout of the original goal	Common Stock	548	—	—	6,035
2026-03-07	Mares Michael S JR	Vice President, Operations	Tax↓ Filing footnotes — Common Stock (Direct) Represents the number of shares withheld by and surrendered to the Issuer to satisfy the tax withholding obligations that arose in connection with the vesting of a Performance Stock Unit (PSU) Award.	Common Stock	495	$45.59	$22,567	12,474
2026-03-07	Milleman Greg A	VP Rates & Regulatory Affairs	Tax↓ Filing footnotes — Common Stock (Direct) Represents the number of shares withheld by and surrendered to the Issuer to satisfy the tax withholding obligations that arose in connection with the vesting of a Performance Stock Unit (PSU) Award.	Common Stock	486	$45.59	$22,157	13,444
2026-03-07	Luu Michael B	Sr. VP Corp Svcs & Chief Risk	Award↑ Filing footnotes — Common Stock (Direct) The reporting person was granted a Performance Stock Unit (PSU) award on 6/1/2023. The PSU vested in full based on the satisfaction of certain performance criteria approved by the Board of Directors. The performance criteria was met resulting in 46% payout of the original goal	Common Stock	205	—	—	24,568
2026-03-07	Peters Todd Kenneth	Vice President, Engineering	Award↑ Filing footnotes — Common Stock (Direct) The reporting person was granted a Performance Stock Unit (PSU) award on 3/7/2023. The PSU vested in full based on the satisfaction of certain performance criteria approved by the Board of Directors. The performance criteria was met resulting in 46% payout of the original goal	Common Stock	548	—	—	8,750
2026-03-07	James Sophie Marwieh	VP Water Qual & Envir Affairs	Tax↓ Filing footnotes — Common Stock (Direct) Represents the number of shares withheld by and surrendered to the Issuer to satisfy the tax withholding obligations that arose in connection with the vesting of a Performance Stock Unit (PSU) Award.	Common Stock	232	$45.59	$10,577	8,353
2026-03-07	Mortensen Michelle R	VP Corp Sect & Chief of Staff	Tax↓ Filing footnotes — Common Stock (Direct) Represents the number of shares withheld by and surrendered to the Issuer to satisfy the tax withholding obligations that arose in connection with the vesting of a Performance Stock Unit (PSU) Award.	Common Stock	534	$45.59	$24,345	13,163
2026-03-07	Dean Shannon C	SR. VP, Cust Svc & Chief Sust	Tax↓ Filing footnotes — Common Stock (Direct) Represents the number of shares withheld by and surrendered to the Issuer to satisfy the tax withholding obligations that arose in connection with the vesting of the Restricted Stock Award (RSA)	Common Stock	62	$45.59	$2,827	23,816
2026-03-07	Bunting Shawn C	Sr. VP, GC and Business Dev	Tax↓ Filing footnotes — Common Stock (Direct) Represents the number of shares withheld by and surrendered to the Issuer to satisfy the tax withholding obligations that arose in connection with the vesting of a Performance Stock Unit (PSU) Award.	Common Stock	422	$45.59	$19,239	4,902
2026-03-07	KROPELNICKI MARTIN A	Chairman President & CEO	Award↑ Filing footnotes — Common Stock (Direct) The reporting person was granted a Performance Stock Unit (PSU) award on 3/7/2023. The PSU vested in full based on the satisfaction of certain performance criteria approved by the Board of Directors. The performance criteria was met resulting in 46% payout of the original goal	Common Stock	6,507	—	—	153,030
2026-03-07	Scanlon Thomas A	VP, Corporate Controller & CAO	Tax↓ Filing footnotes — Common Stock (Direct) Represents the number of shares withheld by and surrendered to the Issuer to satisfy the tax withholding obligations that arose in connection with the vesting of the Restricted Stock Award (RSA)	Common Stock	26	$45.59	$1,185	5,783
2026-03-07	Ouyang Elissa Y	VP Facilities Fleet & Procure	Award↑ Filing footnotes — Common Stock (Direct) The reporting person was granted a Performance Stock Unit (PSU) award on 3/7/2023. The PSU vested in full based on the satisfaction of certain performance criteria approved by the Board of Directors. The performance criteria was met resulting in 46% payout of the original goal	Common Stock	900	—	—	15,611
2026-03-07	James Sophie Marwieh	VP Water Qual & Envir Affairs	Award↑ Filing footnotes — Common Stock (Direct) The reporting person was granted a Performance Stock Unit (PSU) award on 3/7/2023. The PSU vested in full based on the satisfaction of certain performance criteria approved by the Board of Directors. The performance criteria was met resulting in 46% payout of the original goal	Common Stock	548	—	—	8,585

Legend Buy — open-market purchase Sell — open-market sale ↑ Shares acquired ↓ Shares disposed (gift, conversion, tax…)

Showing 1–50 of 1,143 transactions

Key facts CIK 1035201 CUSIP 130788102 13F (30d) 27 filings 26 filers Visit website Investor relations