ARROWSTREET CAPITAL, LIMITED PARTNERSHIP

Position in CWT — California Water Service Group

CIK 1164508 BOSTON, MA

Position in CWT

as of Jun 30, 2026 · filed Aug 13, 2026 Compact

Position Value

$17,779,823

+$6,083,464 QoQ

Shares Held

365,464

+41.7% QoQ

Ownership

0.591%

of shares outstanding

% of Portfolio

0.01%

of 13F equity value

Holder Rank

#26

of 343 holders

Holding Since

Mar 2020

7 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Utilities · as of Jun 30, 2026

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP holds $130,850,672 across 10 Utilities - Regulated Water names. CWT ranks #2 (13.6% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	WTRG	Essential Utilities, Inc.	2,086,569	$79,936,458
2	CWT	California Water Service Group This page	365,464	$17,779,823
3	AWR	American States Water Co	186,116	$15,378,765
4	YORW	York Water Co	362,561	$11,112,494
5	ARTNA	Artesian Resources Corp	83,827	$2,849,279
6	CWCO	Consolidated Water Co. Ltd.	59,537	$1,756,341
7	AWK	American Water Works Company, Inc.	6,696	$881,059
8	MSEX	Middlesex Water Co	10,927	$613,660

7 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$17,779,823	365,464	+41.7%	Shares	Defined	2026-08-13
2026-03-31	$11,696,359	257,970	+416.9%	Shares	Defined	2026-05-14
2025-12-31	$2,162,556	49,909	-12.7%	Shares	Defined	2026-02-13
2025-09-30	$2,623,668	57,173	-26.9%	Shares	Defined	2025-11-13
2025-06-30	$3,555,717	78,182	+179.1%	Shares	Defined	2025-08-13
2025-03-31	$1,357,364	28,010	+98.7%	Shares	Defined	2025-05-14
2020-03-31	$709,512	14,100	—	Shares	Defined	2020-05-15
No filing history on record for this holder in this stock.