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, Q4 2025
Institutional positions in California Water Service Group as of Dec 31, 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
- 329
- −1 vs. Q3 2025
- Shares held
- 50.1M
- +185.2K (+0.4%) vs. Q3 2025
- Total value
- $2.17B
- −$119.4M (−5.2%) vs. Q3 2025
- New holders
- 38
- 97 more added
- Sold out
- 39
- 130 more reduced
7 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 346 | $2.69B |
| Q1 2026 | 339 | $2.32B |
| Q4 2025 | 329 | $2.17B |
| Q3 2025 | 337 | $2.30B |
| Q2 2025 | 338 | $2.29B |
| Q1 2025 | 330 | $2.45B |
| Q4 2024 | 323 | $2.23B |
| Q3 2024 | 324 | $2.63B |
| Q2 2024 | 299 | $2.34B |
| Q1 2024 | 275 | $2.27B |
| Q4 2023 | 285 | $2.47B |
| Q3 2023 | 273 | $2.26B |
| Q2 2023 | 286 | $2.44B |
| Q1 2023 | 299 | $2.61B |
| Q4 2022 | 295 | $2.73B |
| Q3 2022 | 281 | $2.31B |
| Q2 2022 | 281 | $2.44B |
| Q1 2022 | 312 | $2.51B |
| Q4 2021 | 307 | $2.96B |
| Q3 2021 | 268 | $2.40B |
| Q2 2021 | 251 | $2.20B |
| Q1 2021 | 259 | $2.18B |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding California Water Service Group; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Kennedy Capital Management, Inc. | 28,915 | $1.25M | 0.03% | −28,659−49.8% | Reduced |
| Arjuna Capital | 28,052 | $1.22M | 0.30% | −719−2.5% | Reduced |
| Maven Securities LTD | 27,611 | $1.20M | 0.15% | +499+1.8% | Added |
| Manufacturers Life Insurance Company, The | 27,307 | $1.18M | 0.00% | −1,711−5.9% | Reduced |
| Louisiana State Employees Retirement System | 27,300 | $1.18M | 0.02% | −100−0.4% | Reduced |
| Dark Forest Capital Management LP | 27,119 | $1.18M | 0.05% | −70,877−72.3% | Reduced |
| Balyasny Asset Management LLC | 26,758 | $1.16M | 0.00% | +133+0.5% | Added |
| Colony Group, LLC | 26,362 | $1.14M | 0.00% | −464−1.7% | Reduced |
| Allworth Financial LP | 25,938 | $1.12M | 0.00% | +13,326+105.7% | Added |
| Janus Henderson Group PLC | 25,873 | $1.12M | 0.00% | 00.0% | Unchanged |
| HighTower Advisors, LLC | 25,300 | $1.10M | 0.00% | −1,074−4.1% | Reduced |
| Capital Fund Management S.A. | 24,277 | $1.05M | 0.01% | +9,713+66.7% | Added |
| Intech Investment Management LLC | 23,894 | $1.04M | 0.01% | 00.0% | Unchanged |
| Voya Investment Management LLC | 23,704 | $1.03M | 0.00% | +12,507+111.7% | Added |
| Davy Global Fund Management Ltd | 23,290 | $1.01M | 0.07% | −22,694−49.4% | Reduced |
| Van Eck Associates Corp | 23,105 | $1.00M | 0.00% | +1,405+6.5% | Added |
| SEI Investments Co | 23,086 | $1.00M | 0.00% | +15,339+198.0% | Added |
| Canvas Wealth Advisors, LLC | 23,084 | $1.00M | 0.17% | +2,431+11.8% | Added |
| Two Sigma Investments, LP | 23,076 | $999.9K | 0.00% | +2,700+13.3% | Added |
| Handelsbanken Fonder AB | 22,716 | $984.0K | 0.00% | +1,801+8.6% | Added |
| Norges Bank | 22,114 | $958.2K | 0.00% | +22,114 | New |
| LPL Financial LLC | 21,979 | $952.3K | 0.00% | +1,804+8.9% | Added |
| Bank of Montreal | 21,739 | $942.0K | 0.00% | −3,400−13.5% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 21,687 | $939.7K | 0.00% | −11,113−33.9% | Reduced |
| Engineers Gate Manager LP | 20,821 | $902.2K | 0.01% | +6,265+43.0% | Added |
| Teton Advisors, LLC | 20,060 | $869.2K | 0.60% | 00.0% | Unchanged |
| Y-Intercept (Hong Kong) Ltd | 19,956 | $864.7K | 0.02% | +19,956 | New |
| Wulff, Hansen & Co. | 19,625 | $850.4K | 0.71% | −1,600−7.5% | Reduced |
| Alps Advisors Inc | 18,909 | $819.3K | 0.00% | −1,264−6.3% | Reduced |
| Freestone Grove Partners LP | 18,642 | $807.8K | 0.01% | −22,353−54.5% | Reduced |
| Cerity Partners LLC | 17,737 | $768.6K | 0.00% | −2,113−10.6% | Reduced |
| Allspring Global Investments Holdings, LLC | 17,356 | $752.0K | 0.00% | +1,517+9.6% | Added |
| Amalgamated Bank | 17,319 | $750.0K | 0.01% | +59+0.3% | Added |
| Arizona State Retirement System | 16,911 | $732.8K | 0.00% | −716−4.1% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 16,681 | $722.8K | 0.01% | +133+0.8% | Added |
| Yousif Capital Management, LLC | 16,115 | $720.2K | 0.01% | −2,295−12.5% | Reduced |
| State Board of Administration of Florida Retirement System | 16,459 | $713.2K | 0.00% | 00.0% | Unchanged |
| Comerica Bank | 16,234 | $703.4K | 0.00% | −2,813−14.8% | Reduced |
| Mackenzie Financial Corp | 15,634 | $679.8K | 0.00% | +630+4.2% | Added |
| Teachers Retirement System of the State of Kentucky | 14,769 | $640.0K | 0.00% | −1,782−10.8% | Reduced |
| KLP Kapitalforvaltning AS | 14,200 | $615.3K | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 13,978 | $605.7K | 0.00% | −314−2.2% | Reduced |
| Commonwealth Equity Services, LLC | 13,729 | $594.9K | 0.00% | +568+4.3% | Added |
| Oregon Public Employees Retirement Fund | 13,614 | $589.9K | 0.01% | +200+1.5% | Added |
| HSBC Holdings PLC | 13,298 | $574.1K | 0.00% | +13,298 | New |
| Campbell & CO Investment Adviser LLC | 13,237 | $573.6K | 0.03% | +13,237 | New |
| Quantinno Capital Management LP | 13,155 | $570.0K | 0.00% | −5,021−27.6% | Reduced |
| Royal Bank of Canada | 13,146 | $570.0K | 0.00% | −40,695−75.6% | Reduced |
| Toroso Investments, LLC | 13,114 | $568.2K | 0.00% | −102−0.8% | Reduced |
| Mercer Global Advisors Inc | 13,092 | $567.3K | 0.00% | −36,496−73.6% | Reduced |
| Holocene Advisors, LP | 13,053 | $565.6K | 0.00% | +4,047+44.9% | Added |
| Farmers & Merchants Trust Co of Long Beach | 13,000 | $563.3K | 0.13% | −500−3.7% | Reduced |
| Creative Planning | 12,962 | $561.6K | 0.00% | −4,373−25.2% | Reduced |
| Cetera Investment Advisers | 12,953 | $561.3K | 0.00% | −4,840−27.2% | Reduced |
| State of Tennessee, Treasury Department | 12,535 | $560.3K | 0.00% | −4,177−25.0% | Reduced |
| Versor Investments LP | 12,606 | $546.2K | 0.09% | +12,606 | New |
| Abacus Wealth Partners, LLC | 12,519 | $542.4K | 0.05% | +12,519 | New |
| Atria Investments LLC | 12,098 | $524.2K | 0.01% | −1,153−8.7% | Reduced |
| Public Employees Retirement System of Ohio | 11,873 | $514.5K | 0.00% | −13−0.1% | Reduced |
| Stifel Financial Corp | 11,797 | $511.2K | 0.00% | −523−4.2% | Reduced |
| Federation des caisses Desjardins du Quebec | 11,190 | $484.9K | 0.00% | +2,182+24.2% | Added |
| Daiwa Securities Group Inc. | 11,015 | $477.0K | 0.00% | +91+0.8% | Added |
| Clean Yield Group | 10,935 | $473.8K | 0.13% | −300−2.7% | Reduced |
| D.A. Davidson & Co. | 10,483 | $454.3K | 0.00% | −64−0.6% | Reduced |
| Ethic Inc. | 10,391 | $450.2K | 0.01% | −1,129−9.8% | Reduced |
| Resona Asset Management Co.,Ltd. | 10,359 | $448.9K | 0.00% | −88−0.8% | Reduced |
| Perigon Wealth Management, LLC | 10,206 | $442.2K | 0.01% | +10,206 | New |
| Qube Research & Technologies Ltd | 10,091 | $437.2K | 0.00% | +10,091 | New |
| Pictet Asset Management Holding SA | 10,019 | $434.1K | 0.00% | −2,129−17.5% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 9,950 | $431.1K | 0.00% | −2,482−20.0% | Reduced |
| Pathstone Holdings, LLC | 9,503 | $411.8K | 0.00% | −1,279−11.9% | Reduced |
| Captrust Financial Advisors | 9,379 | $406.4K | 0.00% | −809−7.9% | Reduced |
| Banque Pictet & Cie SA | 9,152 | $396.6K | 0.00% | −2,152−19.0% | Reduced |
| Private Advisor Group, LLC | 9,011 | $390.4K | 0.00% | −6,922−43.4% | Reduced |
| Sciencast Management LP | 8,815 | $382.0K | 0.05% | +8,815 | New |
| Sovereign Financial Group, Inc. | 8,800 | $381.3K | 0.07% | −52−0.6% | Reduced |
| Quadrature Capital Ltd | 8,413 | $364.5K | 0.00% | +1,182+16.3% | Added |
| Entropy Technologies, LP | 8,253 | $357.6K | 0.02% | +1,984+31.6% | Added |
| Green Alpha Advisors, LLC | 8,153 | $353.3K | 0.32% | +700+9.4% | Added |
| MQS Management LLC | 7,764 | $336.4K | 0.20% | +1,743+28.9% | Added |
| Public Employees Retirement Association of Colorado | 7,737 | $335.0K | 0.00% | 00.0% | Unchanged |
| Blackhill Capital Inc | 7,600 | $329.3K | 0.02% | 00.0% | Unchanged |
| Sound Income Strategies, LLC | 7,210 | $329.3K | 0.02% | 00.0% | Unchanged |
| Glenmede Trust Co NA | 7,590 | $328.9K | 0.00% | +7,590 | New |
| Baird Financial Group, Inc. | 7,423 | $321.6K | 0.00% | +1,304+21.3% | Added |
| Cullen Capital Management LLC | 7,125 | $308.7K | 0.00% | −5,362−42.9% | Reduced |
| Wealth Architects, LLC | 7,061 | $306.0K | 0.03% | −174−2.4% | Reduced |
| STRS Ohio | 6,900 | $299.0K | 0.00% | 00.0% | Unchanged |
| Ketron Financial | 6,900 | $299.0K | 0.10% | +6,900 | New |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 6,830 | $295.9K | 0.00% | 00.0% | Unchanged |
| Mutual of America Capital Management LLC | 6,811 | $295.1K | 0.00% | +137+2.1% | Added |
| PharVision Advisers, LLC | 6,756 | $292.7K | 0.15% | +6,756 | New |
| Maple Capital Management, Inc. | 6,667 | $288.9K | 0.02% | 00.0% | Unchanged |
| PFG Investments, LLC | 6,632 | $287.3K | 0.01% | +63+1.0% | Added |
| Hutchinson Capital Management | 6,612 | $286.5K | 0.05% | 00.0% | Unchanged |
| Spirit of America Management Corp | 6,500 | $281.6K | 0.06% | 00.0% | Unchanged |
| ELCO Management Co., LLC | 6,463 | $280.0K | 0.18% | −1,480−18.6% | Reduced |
| Algert Global LLC | 6,257 | $271.1K | 0.00% | 00.0% | Unchanged |
| TRUE Private Wealth Advisors | 6,200 | $268.6K | 0.03% | −1,000−13.9% | Reduced |
| Mitchell McLeod Pugh & Williams Inc | 6,000 | $266.8K | 0.04% | 00.0% | Unchanged |