334 institutions reported holding CWT for 2026Q1, together 86% of the company, more than the 328 a quarter earlier. Institutions reporting a position: 334 (as of 2026Q1). Shares held by institutions: 51.3M, long US equity positions only, as reported on Form 13F. Reported value: $2.32B, at 2026-03-31 prices, not today's. Top 5 holders: 46%, of the whole company, between five filers.

CWTCalifornia Water Service Group

UtilitiesUSD

$50.27

$41.6752 weeks$52.42

Who owns CWT

334 institutions reported holding CWT for 2026Q1, together 86% of the company, more than the 328 a quarter earlier.

334

Institutions reporting a position · as of 2026Q1 · up from 328 the quarter before

Shares held by institutions: 51.3M
Shares held by institutions · 86% of the company · long US equity positions only, as reported on Form 13F
Reported value: $2.32B
Reported value · at 2026-03-31 prices, not today's
Top 5 holders: 46%
Top 5 holders · of the whole company, between five filers

Details›

Reporting quarter2026-03-31: 2026Q1
Quarters on record: 52
New positions: 38
Positions exited: 38
Added to: 129
Reduced: 84
Top 10 holdersof the company: 58%

Institutional ownership by quarter, 2013Q2 to 2026Q1
Quarter	Filers	Shares	Reported value
2026Q1	334	51.3M	$2.32B
2025Q4	328	50.1M	$2.17B
2025Q3	334	50.0M	$2.29B
2025Q2	332	50.2M	$2.35B
2025Q1	326	50.4M	$2.45B
2024Q4	319	49.1M	$2.22B
2024Q3	320	48.4M	$2.62B
2024Q2	297	48.3M	$2.34B
2024Q1	273	48.8M	$2.27B
2023Q4	282	47.6M	$2.47B
2023Q3	268	47.7M	$2.26B
2023Q2	283	47.1M	$2.43B
2023Q1	295	44.8M	$2.61B
2022Q4	292	45.0M	$2.73B
2022Q3	278	43.9M	$2.31B
2022Q2	275	43.8M	$2.43B

Largest reported holders, 2026Q1
Holder	Shares	% of company	Value
BlackRock Inc.	10.3M	17%	$467M
VANGUARD GROUP INC	7.5M	13%	$339M
Amundi Group	3.5M	5.8%	$157M
T. Rowe Price Investment Management, Inc.	3.4M	5.7%	$155M
STATE STREET CORP	3.1M	5.2%	$141M
NUANCE INVESTMENTS, LLC	1.6M	2.7%	$73M
GEODE CAPITAL MANAGEMENT LLC	1.5M	2.5%	$67M
FMR LLC	1.4M	2.3%	$63M
FIRST TRUST ADVISORS LP	1.4M	2.3%	$61M
DIMENSIONAL FUND ADVISORS LP	1.2M	1.9%	$53M

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold.

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