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California Water Service Group

CWT
Exchange
NYSE
Industry
Water Supply
SEC CIK
0001035201

In the last 90 days, California Water Service Group insiders filed 0 open-market purchases and 2 sales; 346 institutions reported holding it in 13F filings for Q2 2026, worth $2.69B in total; no superinvestor holds it.

13F holders, Q3 2025

Institutional positions in California Water Service Group as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
337
+6 vs. Q2 2025
Shares held
50.1M
+431.8K (+0.9%) vs. Q2 2025
Total value
$2.30B
+$38.0M (+1.7%) vs. Q2 2025
New holders
36
122 more added
Sold out
30
110 more reduced

7 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting CWT on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2025: 337 institutions
Q1 2021: 259 institutionsQ2 2021: 251 institutionsQ3 2021: 268 institutionsQ4 2021: 307 institutionsQ1 2022: 312 institutionsQ2 2022: 281 institutionsQ3 2022: 281 institutionsQ4 2022: 295 institutionsQ1 2023: 299 institutionsQ2 2023: 286 institutionsQ3 2023: 273 institutionsQ4 2023: 285 institutionsQ1 2024: 275 institutionsQ2 2024: 299 institutionsQ3 2024: 324 institutionsQ4 2024: 323 institutionsQ1 2025: 330 institutionsQ2 2025: 338 institutionsQ3 2025: 337 institutionsQ4 2025: 329 institutionsQ1 2026: 339 institutionsQ2 2026: 346 institutions
Value heldQ3 2025: $2.30B
Q1 2021: $2.18BQ2 2021: $2.20BQ3 2021: $2.40BQ4 2021: $2.96BQ1 2022: $2.51BQ2 2022: $2.44BQ3 2022: $2.31BQ4 2022: $2.73BQ1 2023: $2.61BQ2 2023: $2.44BQ3 2023: $2.26BQ4 2023: $2.47BQ1 2024: $2.27BQ2 2024: $2.34BQ3 2024: $2.63BQ4 2024: $2.23BQ1 2025: $2.45BQ2 2025: $2.29BQ3 2025: $2.30BQ4 2025: $2.17BQ1 2026: $2.32BQ2 2026: $2.69B
Institutions holding CWT and their total value by quarter
QuarterHoldersValue
Q2 2026346$2.69B
Q1 2026339$2.32B
Q4 2025329$2.17B
Q3 2025337$2.30B
Q2 2025338$2.29B
Q1 2025330$2.45B
Q4 2024323$2.23B
Q3 2024324$2.63B
Q2 2024299$2.34B
Q1 2024275$2.27B
Q4 2023285$2.47B
Q3 2023273$2.26B
Q2 2023286$2.44B
Q1 2023299$2.61B
Q4 2022295$2.73B
Q3 2022281$2.31B
Q2 2022281$2.44B
Q1 2022312$2.51B
Q4 2021307$2.96B
Q3 2021268$2.40B
Q2 2021251$2.20B
Q1 2021259$2.18B

Institutions, Q3 2025

Shares, value and share of portfolio for each institution holding California Water Service Group; share changes are against Q2 2025.

Institutions holding CWT in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Mutual of America Capital Management LLC6,674$306.3K0.00%−978−12.8%Reduced
Maple Capital Management, Inc.6,667$305.9K0.02%00.0%Unchanged
Hutchinson Capital Management6,612$303.4K0.05%+20.0%Added
PFG Investments, LLC6,569$301.4K0.02%+30.0%Added
Spirit of America Management Corp6,500$298.3K0.06%+2,500+62.5%Added
Mitchell McLeod Pugh & Williams Inc6,000$296.2K0.05%00.0%Unchanged
CIBC Bancorp USA Inc.6,378$292.7K0.00%+6,378New
Ieq Capital, LLC6,322$290.1K0.00%−652−9.3%Reduced
Entropy Technologies, LP6,269$287.7K0.02%+6,269New
Russell Investments Group, Ltd.6,259$287.2K0.00%+4,271+214.8%Added
Algert Global LLC6,257$287.1K0.00%+950+17.9%Added
Baird Financial Group, Inc.6,119$280.8K0.00%+620+11.3%Added
MQS Management LLC6,021$276.3K0.16%+6,021New
US Bancorp5,904$270.9K0.00%−835−12.4%Reduced
JustInvest LLC5,752$264.0K0.00%+757+15.2%Added
Everence Capital Management Inc5,680$261.0K0.02%00.0%Unchanged
Jacobi Capital Management LLC5,663$259.9K0.02%+8+0.1%Added
CIBC Asset Management Inc5,594$256.7K0.00%−128−2.2%Reduced
The PNC Financial Services Group, Inc.5,136$235.7K0.00%+50+1.0%Added
Ameritas Investment Partners, Inc.5,131$235.5K0.01%−890−14.8%Reduced
Wellington Shields & Co., LLC5,000$229.4K0.06%00.0%Unchanged
Corient IA LLC5,000$229.4K0.17%00.0%Unchanged
Mission Wealth Management, LP4,989$228.9K0.00%+12+0.2%Added
Crossmark Global Holdings, Inc.4,793$220.0K0.00%00.0%Unchanged
Xponance, Inc.4,697$215.5K0.00%+56+1.2%Added
Neuberger Berman Group LLC4,685$215.0K0.00%−189−3.9%Reduced
Hohimer Wealth Management, LLC4,673$214.4K0.03%+4,673New
Alan B. Lancz & Associates, Inc.4,600$211.1K0.19%00.0%Unchanged
Evergreen Capital Management LLC4,548$208.7K0.00%+4,548New
SRS Capital Advisors, Inc.4,529$207.8K0.00%+4,444+5,228.2%Added
Asset Planning,Inc4,500$206.5K0.15%00.0%Unchanged
Sterling Capital Management LLC4,143$190.1K0.00%+2,528+156.5%Added
Tower Research Capital LLC (TRC)4,012$184.1K0.01%−2,274−36.2%Reduced
Steward Partners Investment Advisory, LLC3,915$179.7K0.00%+89+2.3%Added
Rothschild Investment LLC2,530$116.1K0.01%−219−8.0%Reduced
Creative Financial Designs Inc2,327$106.8K0.01%−10,558−81.9%Reduced
Millstone Evans Group, LLC2,250$103.3K0.07%00.0%Unchanged
GAMMA Investing LLC2,026$93.0K0.01%+512+33.8%Added
GHP Investment Advisors, Inc.2,013$92.4K0.00%00.0%Unchanged
Jackson, Grant Investment Advisers, Inc.1,661$76.2K0.03%00.0%Unchanged
Global Retirement Partners, LLC1,658$76.1K0.00%00.0%Unchanged
Rockefeller Capital Management L.P.1,643$75.4K0.00%+1,643New
Sittner & Nelson, LLC1,620$74.3K0.03%00.0%Unchanged
Mather Group, LLC.1,528$70.1K0.00%+1,528New
Signaturefd, LLC1,464$67.2K0.00%+67+4.8%Added
Broadwater Capital Management LLC1,400$64.2K0.05%−62,272−97.8%Reduced
Jones Financial Companies LLLP1,285$58.7K0.00%+186+16.9%Added
Whittier Trust Co of Nevada Inc1,243$56.4K0.00%00.0%Unchanged
CIBC Private Wealth Group, LLC1,150$52.8K0.00%+1,077+1,475.3%Added
Bokf, NA1,034$47.5K0.00%00.0%Unchanged
Kelly Lawrence W & Associates Inc1,000$45.9K0.01%00.0%Unchanged
Advisory Services Network, LLC957$43.9K0.00%+957New
Aster Capital Management (DIFC) Ltd939$43.1K0.02%+939New
EverSource Wealth Advisors, LLC898$41.2K0.00%+201+28.8%Added
Hantz Financial Services, Inc.880$40.0K0.00%+655+291.1%Added
Essential Partners LLC862$39.6K0.01%+802+1,336.7%Added
Caldwell Sutter Capital, Inc.855$39.2K0.02%00.0%Unchanged
BNP PARIBAS ASSET MANAGEMENT Holding S.A.848$39.0K0.00%+59+7.5%Added
Beaird Harris Wealth Management, LLC846$38.8K0.00%00.0%Unchanged
Larson Financial Group LLC795$36.5K0.00%−1−0.1%Reduced
Whittier Trust Co800$36.3K0.00%00.0%Unchanged
NBT Bank N A700$32.1K0.00%00.0%Unchanged
Pinnacle Bancorp, Inc.670$30.7K0.01%00.0%Unchanged
Versant Capital Management, Inc639$29.3K0.00%−47−6.9%Reduced
Clearstead Advisors, LLC626$28.7K0.00%+193+44.6%Added
Clarity Asset Management, Inc.601$27.6K0.02%+4+0.7%Added
Danske Bank A/S600$27.5K0.00%00.0%Unchanged
Harbour Investments, Inc.600$27.5K0.00%00.0%Unchanged
True Wealth Design, LLC573$26.3K0.01%+192+50.4%Added
Farther Finance Advisors, LLC547$25.1K0.00%+531+3,318.8%Added
Quadrant Capital Group LLC536$24.6K0.00%+536New
Grey Fox Wealth Advisors, LLC504$23.1K0.00%+504New
Banque Cantonale Vaudoise453$21.0K0.00%00.0%Unchanged
Nomura Asset Management Co Ltd450$20.7K0.00%00.0%Unchanged
Parallel Advisors, LLC447$20.5K0.00%−4−0.9%Reduced
HM Payson & Co420$19.3K0.00%00.0%Unchanged
Trust Co of Toledo NA400$18.4K0.00%00.0%Unchanged
Parvin Asset Management, LLC400$18.4K0.02%00.0%Unchanged
Massmutual Trust Co FSB377$17.3K0.00%−20−5.0%Reduced
Capital Advisors, Ltd. LLC362$17.0K0.00%00.0%Unchanged
IFP Advisors, Inc363$16.7K0.00%−72−16.6%Reduced
Fifth Third Bancorp358$16.4K0.00%+113+46.1%Added
Salomon & Ludwin, LLC347$15.8K0.00%+347New
Shell Asset Management Co322$15.0K0.00%−924−74.2%Reduced
Central Trust Co304$14.0K0.00%00.0%Unchanged
Umb Bank N A291$13.4K0.00%+42+16.9%Added
Costello Asset Management, INC272$12.5K0.00%+2+0.7%Added
Westfuller Advisors, LLC265$12.1K0.01%+265New
Harbor Capital Advisors, Inc.232$11.0K0.00%−4−1.7%Reduced
Rise Advisors, LLC237$10.9K0.00%+1+0.4%Added
MAI Capital Management207$9.50K0.00%−70−25.3%Reduced
AdvisorNet Financial, Inc202$9.27K0.00%00.0%Unchanged
Leonteq Securities AG198$9.09K0.00%+26+15.1%Added
Bessemer Group Inc184$9.00K0.00%+150+441.2%Added
GWM Advisors LLC175$8.02K0.00%+175New
Bare Financial Services, Inc164$7.53K0.00%+29+21.5%Added
Principal Securities, Inc.158$7.25K0.00%00.0%Unchanged
Hemington Wealth Management174$7.00K0.00%00.0%Unchanged
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.142$6.52K0.00%00.0%Unchanged
BFSG, LLC136$6.24K0.00%00.0%Unchanged