California Water Service Group (CWT) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

0Shares Outstanding

913,901Shares held by institutions

$42,085,141Value of institutional holdings

83.56%Institutional ownership %

-1.31%Shares Changed QoQ

334No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

California Water Service Group (NYSE:CWT) is held by 318 institutional investors per 13F filings through December 2025.

Their combined ownership stood at 84.9% of outstanding shares in December 2025, up from 84.7% in September 2025.
Their total shares held in CWT increased 1.56% quarter over quarter, and separately, investors owning California Water Service increased 0.63% from a year ago.
Of these 318 holders, 135 added to their stakes in California Water Service, 124 trimmed positions, and 59 made no changes.
The aggregate institutional position in California Water Service amounted to 50.67Mn shares as of December 2025, up by 777.96K shares quarter on quarter, and down 25.45K shares year over year.
BlackRock, Inc. is the top holder of California Water Service as of December 31, 2025, with 10.68Mn shares representing 17.91% of outstanding stock.
The biggest buyers of California Water Service for the quarter ending December 2025 included T. Rowe Price Investment Management, Inc. (757.76K), Amundi (462.39K), FMR LLC (393.02K), ExodusPoint Capital Management, LP (238.84K), BlackRock, Inc. (233.12K).
The largest sellers of California Water Service for the quarter ending December 2025 were Jpmorgan Chase & Co (328.6K), MILLENNIUM MANAGEMENT LLC (277.92K), Bank Of America Corp /De/ (199.94K), RENAISSANCE TECHNOLOGIES LLC (189.22K), DARK FOREST CAPITAL MANAGEMENT LP (154.89K).
Business Quant data shows the 10 biggest positions in California Water Service as of December 2025 are held by BlackRock, Inc. (10.68Mn), VANGUARD GROUP INC (7.35Mn), T. Rowe Price Investment Management, Inc. (4.06Mn), State Street Corp (3.03Mn), Amundi (2.74Mn), NUANCE INVESTMENTS, LLC (1.83Mn), FMR LLC (1.8Mn), GEODE CAPITAL MANAGEMENT, LLC (1.42Mn), FIRST TRUST ADVISORS LP (1.37Mn), DIMENSIONAL FUND ADVISORS LP (1.15Mn).

318 Institutional Holders

913,901 Total Shares Held

Rows:

Download Data

Owner Name	Date	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	233,117	2.23%	$0.00
VANGUARD GROUP INC	31 Dec, 2025	34,155	0.47%	$0.00
T. Rowe Price Investment Management, Inc.	31 Dec, 2025	757,757	22.96%	$0.00
Barclays Plc	31 Dec, 2025	-107,009	-46.62%	$0.00
State Street Corp	31 Dec, 2025	-71,051	-2.29%	$0.00
Nuveen, LLC	31 Dec, 2025	48,772	12.46%	$0.00
HSBC HOLDINGS PLC	31 Dec, 2025	26,596	0.00%	$0.00
Amundi	31 Dec, 2025	462,394	20.31%	$0.00
Triodos Investment Management BV	31 Dec, 2025	-79,000	-16.02%	$0.00
Rockefeller Capital Management L.P.	31 Dec, 2025	1,097	66.77%	$0.00
NUANCE INVESTMENTS, LLC	31 Dec, 2025	60,931	3.45%	$0.00
Beck Bode, LLC	31 Dec, 2025	-13,843	-3.44%	$0.00
FMR LLC	31 Dec, 2025	393,016	28.01%	$0.00
ExodusPoint Capital Management, LP	31 Dec, 2025	238,840	0.00%	$0.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	4,613	0.33%	$0.00
UBS Group AG	31 Dec, 2025	-25,833	-10.76%	$0.00
FIRST TRUST ADVISORS LP	31 Dec, 2025	-36,342	-2.59%	$0.00
Aptus Capital Advisors, LLC	31 Dec, 2025	715	0.40%	$0.00
DIMENSIONAL FUND ADVISORS LP	31 Dec, 2025	4,913	0.43%	$0.00
Trexquant Investment LP	31 Dec, 2025	68,683	102.65%	$0.00

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