GAMCO Investors’s California Water Service CWT Stock Holding History

GAMCO Investors’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 Q2	$732K	Buy	+15,048	New	+$679K	0.01%	662
2021 Q1	–	Sell	-14,000	Closed	-$756K	–	921
2020 Q4	$756K	Hold	14,000	–	–	0.01%	655
2020 Q3	$608K	Hold	14,000	–	–	0.01%	648
2020 Q2	$668K	Hold	14,000	–	–	0.01%	622
2020 Q1	$704K	Hold	14,000	–	–	0.01%	604
2019 Q4	$722K	Hold	14,000	–	–	0.01%	663
2019 Q3	$741K	Hold	14,000	–	–	0.01%	654
2019 Q2	$709K	Hold	14,000	–	–	0.01%	665
2019 Q1	$760K	Hold	14,000	–	–	0.01%	617
2018 Q4	$667K	Hold	14,000	–	–	0.01%	604
2018 Q3	$601K	Hold	14,000	–	–	﹤0.01%	657
2018 Q2	$545K	Hold	14,000	–	–	﹤0.01%	673
2018 Q1	$522K	Hold	14,000	–	–	﹤0.01%	665
2017 Q4	$635K	Hold	14,000	–	–	﹤0.01%	648
2017 Q3	$534K	Sell	14,000 -2,000	-13%	-$75.5K	﹤0.01%	676
2017 Q2	$589K	Hold	16,000	–	–	﹤0.01%	665
2017 Q1	$574K	Hold	16,000	–	–	﹤0.01%	658
2016 Q4	$542K	Hold	16,000	–	–	﹤0.01%	664
2016 Q3	$513K	Hold	16,000	–	–	﹤0.01%	667
2016 Q2	$559K	Hold	16,000	–	–	﹤0.01%	668
2016 Q1	$428K	Hold	16,000	–	–	﹤0.01%	693
2015 Q4	$372K	Hold	16,000	–	–	﹤0.01%	705
2015 Q3	$354K	Hold	16,000	–	–	﹤0.01%	725
2015 Q2	$366K	Hold	16,000	–	–	﹤0.01%	731
2015 Q1	$392K	Hold	16,000	–	–	﹤0.01%	736
2014 Q4	$394K	Hold	16,000	–	–	﹤0.01%	751
2014 Q3	$359K	Hold	16,000	–	–	﹤0.01%	770
2014 Q2	$387K	Hold	16,000	–	–	﹤0.01%	759
2014 Q1	$383K	Hold	16,000	–	–	﹤0.01%	739
2013 Q4	$369K	Buy	+16,000	New	+$348K	﹤0.01%	729

Other funds holding CWT

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return

Amundi Paris, France $416B AUM 44.19% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

AIP

Atlas Infrastructure Partners London, United Kingdom $3.3B AUM 16.21% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

First Trust Advisors Wheaton, Illinois $170B AUM 46.21% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

GAMCO Investors's CWT Position: Q2 2026 in Review

GAMCO Investors opened a new position in California Water Service (CWT) in Q2 2026: 15,048 shares worth $732K. The stake represents 0.01% of the portfolio and ranks #662 among its holdings. This is a return to the name: GAMCO Investors previously reported a position in CWT as recently as Q4 2020.

GAMCO Investors first reported a position in CWT in Q4 2013 and has held it in 30 quarters since. The position peaked at $760K in Q1 2019. 346 funds tracked by Wall St. Rank hold CWT as of Q2 2026.

GAMCO Investors held 15,048 shares of California Water Service worth $732K as of Q2 2026.
California Water Service was a new GAMCO Investors position in Q2 2026.
California Water Service made up 0.01% of GAMCO Investors's portfolio in Q2 2026, its #662 holding.
GAMCO Investors first reported a position in California Water Service in Q4 2013 and has held it in 30 quarters since.
GAMCO Investors's California Water Service position peaked at $760K in Q1 2019.
346 funds tracked by Wall St. Rank held California Water Service as of Q2 2026.

Based on GAMCO Investors's 13F filing for Q2 2026, filed 12 Aug 2026.