CWT Insider Trading

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Insider Ownership Percentage: 0.77%

Insider Buying (Last 12 Months): $0.00

Insider Selling (Last 12 Months): $55,812.00

California Water Service Group Insider Trading History Chart

California Water Service Group Share Price & Price History

^$44.27

▼ -0.243 (-0.55%)

As of 12/4/2025 04:59 PM ET

Days: 30 | 90 | 365

California Water Service Group Insider Trading History

Transaction Date	Insider Name	Title	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction
6/12/2025	Lester A. Snow	Director	Sell	1,200	$46.51	$55,812.00	26,349
11/22/2024	Michael B. Luu	VP	Sell	985	$51.50	$50,727.50	20,354
9/4/2024	Thomas M. Krummel	Director	Sell	555	$55.09	$30,574.95	21,951
8/21/2024	Thomas M. Krummel	Director	Sell	555	$54.33	$30,153.15	22,506
8/7/2024	Thomas M. Krummel	Director	Sell	555	$52.91	$29,365.05	23,061
7/17/2024	Thomas M. Krummel	Director	Sell	555	$52.99	$29,409.45	23,616
7/11/2024	Thomas M. Krummel	Director	Sell	1,654	$50.07	$82,815.78	24,171
5/15/2024	Thomas M. Krummel	Director	Sell	555	$53.26	$29,559.30	23,318
5/1/2024	Thomas M. Krummel	Director	Sell	2,220	$50.00	$111,000.00	23,873
1/3/2024	Thomas M. Krummel	Director	Sell	555	$51.90	$28,804.50	26,066
12/20/2023	Thomas M. Krummel	Director	Sell	555	$53.45	$29,664.75	26,621
12/12/2023	Michelle R. Mortensen	Insider	Sell	675	$52.56	$35,478.00	8,983
11/15/2023	Thomas M. Krummel	Director	Sell	555	$51.77	$28,732.35	27,731
11/2/2023	Thomas M. Krummel	Director	Sell	2,220	$50.00	$111,000.00	28,286
5/5/2023	Robert J. Kuta	VP	Sell	1,000	$56.79	$56,790.00	12,916
12/13/2022	Thomas M. Krummel	Director	Sell	469	$64.89	$30,433.41	28,636

SEC Filings (Institutional Ownership Changes) for California Water Service Group (NYSE:CWT)

82.78% of California Water Service Group stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

California Water Service Group Institutional Trading History

Reporting Date	Hedge Fund	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
11/24/2025	CIBC Private Wealth Group LLC	1,150	$53K	0.0%	+1,475.3%	0.002%
11/21/2025	CIBC Bancorp USA Inc.	6,378	$0.29M	0.0%	N/A	0.011%
11/20/2025	Maven Securities LTD	27,112	$1.24M	0.0%	N/A	0.045%
11/19/2025	Danske Bank A S	600	$28K	0.0%	N/A	0.001%
11/18/2025	Advisory Services Network LLC	957	$44K	0.0%	N/A	0.002%
11/17/2025	Jacobs Levy Equity Management Inc.	84,208	$3.86M	0.0%	+5.1%	0.141%
11/17/2025	CANADA LIFE ASSURANCE Co	133,624	$6.06M	0.0%	+4.3%	0.224%
11/17/2025	Dark Forest Capital Management LP	97,996	$4.50M	0.1%	+16.6%	0.164%
11/17/2025	Verition Fund Management LLC	47,047	$2.16M	0.0%	+61.9%	0.079%
11/17/2025	Mariner LLC	95,747	$4.39M	0.0%	+39.9%	0.161%
11/17/2025	Mercer Global Advisors Inc. ADV	49,588	$2.28M	0.0%	+5.0%	0.083%
11/17/2025	Millennium Management LLC	368,074	$16.89M	0.0%	+5,365.1%	0.618%
11/17/2025	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	41,795	$1.92M	0.0%	-8.4%	0.070%
11/17/2025	Holocene Advisors LP	9,006	$0.41M	0.0%	-77.8%	0.015%
11/17/2025	Focus Partners Wealth	26,826	$1.23M	0.0%	-1.3%	0.045%
11/17/2025	Citadel Advisors LLC	13,887	$0.64M	0.0%	-77.6%	0.023%
11/17/2025	Brevan Howard Capital Management LP	18,795	$0.86M	0.0%	N/A	0.032%
11/17/2025	Crawford Investment Counsel Inc.	89,989	$4.13M	0.1%	+5.2%	0.151%
11/17/2025	Bank of America Corp DE	149,506	$6.86M	0.0%	-8.1%	0.251%
11/17/2025	Algert Global LLC	6,257	$0.29M	0.0%	+17.9%	0.010%
11/17/2025	Alliancebernstein L.P.	141,181	$6.48M	0.0%	+29.3%	0.237%
11/17/2025	Ameriprise Financial Inc.	156,444	$7.18M	0.0%	-11.4%	0.263%
11/14/2025	Creative Planning	17,335	$0.80M	0.0%	+13.3%	0.029%
11/14/2025	Raymond James Financial Inc.	298,282	$13.69M	0.0%	-10.4%	0.501%
11/14/2025	Amundi	2,276,599	$104.32M	0.0%	+19.4%	3.820%
11/14/2025	Freestone Grove Partners LP	40,995	$1.88M	0.0%	+48.9%	0.069%
11/14/2025	California State Teachers Retirement System	56,761	$2.61M	0.0%	+4.3%	0.095%
11/14/2025	UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC	241,777	$11.10M	0.0%	-31.1%	0.406%
11/14/2025	Two Sigma Investments LP	20,376	$0.94M	0.0%	+172.6%	0.034%
11/14/2025	Thematics Asset Management	100,470	$4.61M	0.2%	-35.0%	0.169%
11/14/2025	Comerica Bank	19,047	$0.87M	0.0%	-15.8%	0.032%
11/13/2025	Entropy Technologies LP	6,269	$0.29M	0.0%	N/A	0.011%
11/13/2025	Martingale Asset Management L P	82,597	$3.79M	0.1%	+0.6%	0.139%
11/13/2025	Arrowstreet Capital Limited Partnership	57,173	$2.62M	0.0%	-26.9%	0.096%
11/13/2025	Invesco Ltd.	897,064	$41.17M	0.0%	-2.6%	1.505%
11/13/2025	Cbre Investment Management Listed Real Assets LLC	730,263	$33.51M	0.5%	-2.9%	1.225%
11/13/2025	UBS Group AG	240,112	$11.02M	0.0%	+40.3%	0.403%
11/13/2025	Capital Fund Management S.A.	14,564	$0.67M	0.0%	-42.6%	0.024%
11/13/2025	BNP Paribas Financial Markets	53,635	$2.46M	0.0%	+45.0%	0.090%
11/13/2025	Mackenzie Financial Corp	15,004	$0.69M	0.0%	+4.5%	0.025%
11/13/2025	Franklin Resources Inc.	46,430	$2.13M	0.0%	+88.2%	0.078%
11/13/2025	Van ECK Associates Corp	21,700	$1M	0.0%	+6.8%	0.036%
11/13/2025	Legal & General Group Plc	760,261	$34.89M	0.0%	+7.6%	1.276%
11/13/2025	Swiss National Bank	115,400	$5.30M	0.0%	+1.6%	0.194%
11/13/2025	Russell Investments Group Ltd.	6,259	$0.29M	0.0%	+214.8%	0.011%
11/13/2025	Meiji Yasuda Asset Management Co Ltd.	92,071	$4.23M	0.2%	+2.3%	0.155%
11/13/2025	Natixis Advisors LLC	10,587	$0.49M	0.0%	-4.3%	0.018%
11/13/2025	First Trust Advisors LP	1,404,320	$64.44M	0.0%	+4.4%	2.357%
11/12/2025	Teton Advisors LLC	20,060	$0.92M	0.6%	N/A	0.034%
11/12/2025	Aptus Capital Advisors LLC	178,487	$8.19M	0.1%	+15.3%	0.300%
11/12/2025	Barclays PLC	109,885	$5.04M	0.0%	-20.1%	0.184%
11/12/2025	Dimensional Fund Advisors LP	1,149,018	$52.73M	0.0%	-0.8%	1.928%
11/12/2025	South Dakota Investment Council	15,915	$0.73M	0.0%	-18.4%	0.027%
11/12/2025	Victory Capital Management Inc.	268,100	$12.30M	0.0%	-0.9%	0.450%
11/12/2025	New Age Alpha Advisors LLC	99,477	$4.57M	0.2%	-4.7%	0.167%
11/12/2025	Quantbot Technologies LP	10,518	$0.48M	0.0%	+9.2%	0.018%
11/12/2025	Creative Financial Designs Inc. ADV	2,327	$0.11M	0.0%	-81.9%	0.004%
11/12/2025	Aster Capital Management DIFC Ltd	939	$43K	0.0%	N/A	0.002%
11/12/2025	Hohimer Wealth Management LLC	4,673	$0.21M	0.0%	N/A	0.008%
11/12/2025	Intech Investment Management LLC	23,894	$1.10M	0.0%	-8.0%	0.040%
11/12/2025	US Bancorp DE	5,904	$0.27M	0.0%	-12.4%	0.010%
11/10/2025	Magellan Asset Management Ltd	46,034	$2.11M	0.0%	+5.8%	0.077%
11/10/2025	Ameritas Investment Partners Inc.	5,131	$0.24M	0.0%	-14.8%	0.009%
11/10/2025	Citigroup Inc.	47,912	$2.20M	0.0%	-22.9%	0.080%
11/7/2025	CenterBook Partners LP	20,583	$0.95M	0.0%	-28.4%	0.035%
11/7/2025	GSA Capital Partners LLP	17,924	$0.82M	0.1%	N/A	0.030%
11/7/2025	Rothschild Investment LLC	2,530	$0.12M	0.0%	-8.0%	0.004%
11/7/2025	Vanguard Group Inc.	7,312,302	$335.56M	0.0%	-0.9%	12.271%
11/7/2025	JPMorgan Chase & Co.	277,245	$12.72M	0.0%	+14.7%	0.465%
11/7/2025	State of New Jersey Common Pension Fund D	45,479	$2.09M	0.0%	+13.2%	0.076%
11/7/2025	Wulff Hansen & CO.	21,225	$0.97M	0.8%	-2.0%	0.036%
11/6/2025	Public Sector Pension Investment Board	232,432	$10.67M	0.0%	+14.4%	0.390%
11/6/2025	Illinois Municipal Retirement Fund	31,506	$1.45M	0.0%	-1.7%	0.053%
11/6/2025	Rhumbline Advisers	189,695	$8.71M	0.0%	+0.4%	0.318%
11/6/2025	MQS Management LLC	6,021	$0.28M	0.2%	N/A	0.010%
11/6/2025	ProShare Advisors LLC	149,642	$6.87M	0.0%	+0.5%	0.251%
11/6/2025	Nuance Investments LLC	1,764,459	$80.97M	8.2%	+2.1%	2.961%
11/5/2025	Canvas Wealth Advisors LLC	20,653	$0.94M	0.2%	+5.6%	0.035%
11/5/2025	Alps Advisors Inc.	20,173	$0.93M	0.0%	+2.9%	0.034%
11/5/2025	IQ EQ FUND MANAGEMENT IRELAND Ltd	45,984	$2.11M	0.1%	-7.8%	0.077%
11/5/2025	ELCO Management Co. LLC	7,943	$0.37M	0.2%	-10.8%	0.013%
11/5/2025	Hantz Financial Services Inc.	880	$40K	0.0%	+291.1%	0.001%
11/4/2025	Allianz Asset Management GmbH	50,428	$2.31M	0.0%	+8.6%	0.085%
11/4/2025	Jackson Creek Investment Advisors LLC	37,534	$1.72M	0.5%	N/A	0.063%
11/4/2025	Arjuna Capital	28,771	$1.32M	0.3%	-54.5%	0.048%
11/4/2025	Principal Financial Group Inc.	287,705	$13.20M	0.0%	-2.6%	0.483%
11/4/2025	Gitterman Wealth Management LLC	10,306	$0.47M	0.1%	+131.0%	0.017%
11/4/2025	Thrivent Financial for Lutherans	44,644	$2.05M	0.0%	-31.9%	0.075%
11/3/2025	AlphaQuest LLC	31,957	$1.47M	0.1%	+3,195,600.0%	0.054%
11/3/2025	Arizona State Retirement System	17,627	$0.81M	0.0%	+1.5%	0.030%
11/3/2025	Federated Hermes Inc.	100,525	$4.61M	0.0%	+3.5%	0.169%
10/31/2025	Vanguard Personalized Indexing Management LLC	5,752	$0.26M	0.0%	+15.2%	0.010%
10/31/2025	Mutual of America Capital Management LLC	6,674	$0.31M	0.0%	-12.8%	0.011%
10/31/2025	Resona Asset Management Co. Ltd.	10,447	$0.48M	0.0%	-7.6%	0.018%
10/30/2025	Northstar Asset Management Inc.	106,053	$4.87M	1.3%	+3.7%	0.178%
10/30/2025	Strs Ohio	6,900	$0.32M	0.0%	-37.8%	0.012%
10/30/2025	Universal Beteiligungs und Servicegesellschaft mbH	12,531	$0.58M	0.0%	+55.5%	0.021%
10/29/2025	Wealth Enhancement Advisory Services LLC	12,432	$0.58M	0.0%	+9.9%	0.021%
10/29/2025	Amalgamated Bank	17,260	$0.79M	0.0%	+1.8%	0.029%
10/29/2025	Maryland State Retirement & Pension System	63,795	$2.93M	0.1%	-10.3%	0.107%

Data available starting January 2016

California Water Service Group, through its subsidiaries, provides water utility and other related services in California, Washington, New Mexico, Hawaii, and Texas. The company is involved in the production, purchase, storage, treatment, testing, distribution, and sale of water for domestic, industrial, public, and irrigation uses, as well as for fire protection services. It offers its services to approximately 497,700 customer connections in 100 California communities; approximately 6,500 water and wastewater customer connections on the islands of Maui, Oahu, and Hawaii; approximately 38,000 customer connections in the Tacoma, Olympia, Graham, Spanaway, Puyallup, Rainier, Yelm, and Gig Harbor areas; and approximately 11,400 water and wastewater customer connections in Rio Communities, Rio Del Oro, Meadow Lake, Indian Hills, Squaw Valley, Elephant Butte, Morningstar, Sandia Knolls, Juan Tomas, and Cypress Gardens systems. The company also engages in the provision of non-regulated water-related services, including operating of municipally owned water systems, privately owned water, and recycled water distribution systems; water system operation, meter reading, and billing services to private companies and municipalities; leasing of communication antenna sites on its properties; and billing of optional third-party insurance programs to its residential customers. In addition, it provides lab, wastewater collection, and treatment services. California Water Service Group was founded in 1926 and is headquartered in San Jose, California.

Today's Range

Now: $44.27

$44.16

$45.00

50 Day Range

MA: $46.38

$44.10

$49.88

52 Week Range

Now: $44.27

$41.64

$51.63

Volume

364,713 shs

Average Volume

314,703 shs

Market Capitalization

$2.64 billion

P/E Ratio

19.33

Dividend Yield

2.70%

Beta

0.65

Who are the company insiders with the largest holdings of California Water Service Group?: California Water Service Group's top insider investors include:
Thomas M Krummel (Director)
Lester A Snow (Director)
Michael B Luu (VP)
Michelle R Mortensen (Insider)
Learn More about top insider investors at California Water Service Group.
Who are the major institutional investors of California Water Service Group?: California Water Service Group's top institutional shareholders include:
Vanguard Group Inc. — 12.27%
Amundi — 3.82%
Nuance Investments LLC — 2.96%
First Trust Advisors LP — 2.36%
Dimensional Fund Advisors LP — 1.93%
Invesco Ltd. — 1.51%
Learn More about top institutional investors of California Water Service Group stock.
Which major investors are selling California Water Service Group stock?: During the previous quarter, CWT stock was sold by these institutional investors:
UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC
Vanguard Group Inc.
Thematics Asset Management
Citadel Advisors LLC
Raymond James Financial Inc.
Arjuna Capital
Holocene Advisors LP
Barclays PLC
Which major investors are buying California Water Service Group stock?: In the previous quarter, CWT stock was purchased by institutional investors including:
Amundi
Millennium Management LLC
UBS Group AG
First Trust Advisors LP
Legal & General Group Plc
Jackson Creek Investment Advisors LLC
Nuance Investments LLC
JPMorgan Chase & Co.