California Water Service Group (CWT)

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Institutional Investors' Holdings

Filing Period: Filing is Ongoing

No.	Name	Shares	Value	% Port
1.	Blackrock, Inc.	10,982,517	$532,212,809	0.01%
2.	Vanguard Group Inc	7,383,463	$357,802,617	0.01%
3.	Nuance Investments, Llc	2,017,511	$97,768,569	6.42%
4.	Geode Capital Management, Llc	1,402,951	$68,002,383	0.01%
5.	Dimensional Fund Advisors Lp	1,203,518	$58,321,791	0.01%