Arrowstreet Capital’s California Water Service CWT Stock Holding History

Arrowstreet Capital’s Portfolio CWT Stock Details CWT Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$11.7M	Buy	257,970 +208,061	+417%	+$9.33M	0.01%	899
2025 Q4	$2.16M	Sell	49,909 -7,264	-13%	-$331K	﹤0.01%	1379
2025 Q3	$2.62M	Sell	57,173 -21,009	-27%	-$967K	﹤0.01%	1381
2025 Q2	$3.56M	Buy	78,182 +50,172	+179%	+$2.4M	﹤0.01%	1282
2025 Q1	$1.36M	Buy	+28,010	New	+$1.27M	﹤0.01%	1407
2020 Q2	–	Sell	-14,100	Closed	-$710K	–	2330
2020 Q1	$710K	Buy	+14,100	New	+$732K	﹤0.01%	1425
2016 Q4	–	Sell	-70,824	Closed	-$2.27M	–	1828
2016 Q3	$2.27M	Buy	70,824 +60,216	+568%	+$1.94M	0.01%	887
2016 Q2	$371K	Buy	+10,608	New	+$311K	﹤0.01%	1194
2015 Q1	–	Sell	-129,682	Closed	-$3.19M	–	1035
2014 Q4	$3.19M	Buy	129,682 +73,635	+131%	+$1.8M	0.02%	584
2014 Q3	$1.26M	Buy	+56,047	New	+$1.32M	0.01%	686

Other funds holding CWT

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Amundi Paris, France $367B AUM 31.23% 1-Year Est. Return

T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Nuance Investments Kansas City, Missouri $717M AUM 3.8% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

First Trust Advisors Wheaton, Illinois $140B AUM 27.84% 1-Year Est. Return

Arrowstreet Capital's CWT Position: Q1 2026 in Review

Arrowstreet Capital increased its California Water Service (CWT) stake by 417% in Q1 2026, buying an estimated $9.33M and bringing the position to 257,970 shares worth $11.7M. The position accounts for 0.01% of the portfolio, ranked #899.

Arrowstreet Capital first reported a position in CWT in Q3 2014 and has held it in 10 quarters since. 337 funds tracked by Wall St. Rank hold CWT as of Q1 2026.

Arrowstreet Capital held 257,970 shares of California Water Service worth $11.7M as of Q1 2026.
Arrowstreet Capital bought 208,061 California Water Service shares in Q1 2026, an estimated $9.33M.
California Water Service made up 0.01% of Arrowstreet Capital's portfolio in Q1 2026, its #899 holding.
Arrowstreet Capital first reported a position in California Water Service in Q3 2014 and has held it in 10 quarters since.
337 funds tracked by Wall St. Rank held California Water Service as of Q1 2026.

Based on Arrowstreet Capital's 13F filing for Q1 2026, filed 14 May 2026.