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, Q1 2025
Institutional positions in California Water Service Group as of Mar 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
- 330
- +11 vs. Q4 2024
- Shares held
- 50.5M
- +1.69M (+3.5%) vs. Q4 2024
- Total value
- $2.45B
- +$236.5M (+10.7%) vs. Q4 2024
- New holders
- 47
- 121 more added
- Sold out
- 36
- 101 more reduced
4 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2024: 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, Q1 2025
Shares, value and share of portfolio for each institution holding California Water Service Group; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Handelsbanken Fonder AB | 20,724 | $1.00M | 0.00% | 00.0% | Unchanged |
| Nebula Research & Development LLC | 20,729 | $1.00M | 0.09% | +20,729 | New |
| Teton Advisors, Inc. | 21,000 | $1.02M | 0.64% | 00.0% | Unchanged |
| Wulff, Hansen & Co. | 21,875 | $1.06M | 0.97% | +1,235+6.0% | Added |
| Yousif Capital Management, LLC | 21,938 | $1.06M | 0.01% | −591−2.6% | Reduced |
| Jennison Associates LLC | 22,007 | $1.07M | 0.00% | −5,602−20.3% | Reduced |
| Comerica Bank | 22,249 | $1.08M | 0.00% | +612+2.8% | Added |
| LPL Financial LLC | 22,359 | $1.08M | 0.00% | +819+3.8% | Added |
| Trexquant Investment LP | 22,600 | $1.10M | 0.01% | −35,631−61.2% | Reduced |
| CenterBook Partners LP | 23,101 | $1.12M | 0.07% | +3,743+19.3% | Added |
| South Dakota Investment Council | 24,017 | $1.16M | 0.02% | +17,000+242.3% | Added |
| Royal Bank of Canada | 25,448 | $1.23M | 0.00% | −660−2.5% | Reduced |
| State of Tennessee, Treasury Department | 25,606 | $1.24M | 0.00% | 00.0% | Unchanged |
| HRT Financial LP | 25,774 | $1.25M | 0.01% | +25,774 | New |
| HighTower Advisors, LLC | 25,785 | $1.25M | 0.00% | +2,580+11.1% | Added |
| Vontobel Holding Ltd. | 25,803 | $1.25M | 0.00% | −21,352−45.3% | Reduced |
| Franklin Resources Inc | 26,268 | $1.27M | 0.00% | −34,543−56.8% | Reduced |
| Colony Group, LLC | 27,161 | $1.32M | 0.00% | +479+1.8% | Added |
| Louisiana State Employees Retirement System | 28,000 | $1.36M | 0.03% | −800−2.8% | Reduced |
| Arrowstreet Capital, Limited Partnership | 28,010 | $1.36M | 0.00% | +28,010 | New |
| Janus Henderson Group PLC | 28,598 | $1.38M | 0.00% | 00.0% | Unchanged |
| Intech Investment Management LLC | 28,810 | $1.40M | 0.01% | +4,055+16.4% | Added |
| Illinois Municipal Retirement Fund | 28,989 | $1.40M | 0.02% | −3,614−11.1% | Reduced |
| Atom Investors LP | 29,642 | $1.44M | 0.18% | +9,112+44.4% | Added |
| New York State Common Retirement Fund | 30,544 | $1.48M | 0.00% | +1,000+3.4% | Added |
| Ensign Peak Advisors, Inc | 31,064 | $1.51M | 0.00% | 00.0% | Unchanged |
| Corebridge Financial, Inc. | 31,121 | $1.51M | 0.01% | −610−1.9% | Reduced |
| Manufacturers Life Insurance Company, The | 32,814 | $1.59M | 0.00% | +1,959+6.3% | Added |
| State of Alaska, Department of Revenue | 32,954 | $1.60M | 0.02% | −846−2.5% | Reduced |
| Gsa Capital Partners LLP | 33,267 | $1.61M | 0.15% | +33,267 | New |
| Bank of Montreal | 33,292 | $1.61M | 0.00% | +1,976+6.3% | Added |
| Citadel Advisors LLC | 33,859 | $1.64M | 0.00% | −63,933−65.4% | Reduced |
| MetLife Investment Management | 34,799 | $1.69M | 0.01% | −493−1.4% | Reduced |
| Duff & Phelps Investment Management Co | 35,006 | $1.70M | 0.02% | −1,329−3.7% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 35,773 | $1.73M | 0.00% | +5,935+19.9% | Added |
| Allianz Asset Management GmbH | 35,782 | $1.73M | 0.00% | +29,682+486.6% | Added |
| Nia Impact Advisors, LLC | 37,287 | $1.81M | 0.67% | +160+0.4% | Added |
| Kovitz Investment Group Partners, LLC | 38,438 | $1.86M | 0.01% | +373+1.0% | Added |
| State of Wisconsin Investment Board | 39,322 | $1.91M | 0.00% | +948+2.5% | Added |
| CoreCommodity Management, LLC | 39,757 | $1.93M | 0.31% | +4,524+12.8% | Added |
| Graham Capital Management, L.P. | 39,991 | $1.94M | 0.06% | +4,325+12.1% | Added |
| Assenagon Asset Management S.A. | 40,292 | $1.95M | 0.00% | −30,472−43.1% | Reduced |
| State of New Jersey Common Pension Fund D | 41,972 | $2.03M | 0.01% | +1,196+2.9% | Added |
| Gabelli Funds LLC | 43,200 | $2.09M | 0.02% | 00.0% | Unchanged |
| Davy Global Fund Management Ltd | 43,890 | $2.13M | 0.25% | +1,015+2.4% | Added |
| Macquarie Group Ltd | 43,914 | $2.13M | 0.00% | −796−1.8% | Reduced |
| TD Asset Management Inc | 44,196 | $2.14M | 0.00% | −3,150−6.7% | Reduced |
| Magellan Asset Management Ltd | 45,570 | $2.21M | 0.03% | −678−1.5% | Reduced |
| Bridge City Capital, LLC | 46,298 | $2.24M | 0.67% | −451−1.0% | Reduced |
| Mercer Global Advisors Inc | 46,656 | $2.26M | 0.01% | +624+1.4% | Added |
| Skandinaviska Enskilda Banken AB (publ) | 46,739 | $2.26M | 0.01% | +12,100+34.9% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 47,341 | $2.29M | 0.00% | +3,810+8.8% | Added |
| Federated Hermes, Inc. | 48,473 | $2.35M | 0.01% | +46,504+2,361.8% | Added |
| Exchange Traded Concepts, LLC | 48,918 | $2.37M | 0.04% | +24,182+97.8% | Added |
| First National Corp | 49,153 | $2.38M | 0.53% | +26,956+121.4% | Added |
| Envestnet Asset Management Inc | 49,512 | $2.40M | 0.00% | +2,765+5.9% | Added |
| Clear Harbor Asset Management, LLC | 51,310 | $2.49M | 0.20% | −1,476−2.8% | Reduced |
| California State Teachers Retirement System | 54,138 | $2.62M | 0.00% | −922−1.7% | Reduced |
| Financial Counselors Inc | 55,359 | $2.68M | 0.04% | −446−0.8% | Reduced |
| SG Americas Securities, LLC | 56,109 | $2.72M | 0.01% | +24,904+79.8% | Added |
| Price T Rowe Associates Inc | 58,307 | $2.83M | 0.00% | +3,290+6.0% | Added |
| Storebrand Asset Management AS | 59,198 | $2.87M | 0.01% | +1,649+2.9% | Added |
| Susquehanna Fundamental Investments, LLC | 59,237 | $2.87M | 0.05% | +27,840+88.7% | Added |
| New York State Teachers Retirement System | 62,502 | $3.03M | 0.01% | +924+1.5% | Added |
| Marshall Wace, LLP | 62,511 | $3.03M | 0.00% | +56,624+961.8% | Added |
| FMR LLC | 64,486 | $3.12M | 0.00% | +47,216+273.4% | Added |
| Arjuna Capital | 66,038 | $3.20M | 0.89% | −18,873−22.2% | Reduced |
| Wells Fargo & Company | 66,794 | $3.24M | 0.00% | +4,750+7.7% | Added |
| Mariner, LLC | 67,291 | $3.26M | 0.01% | +36,015+115.2% | Added |
| Maryland State Retirement & Pension System | 67,856 | $3.29M | 0.08% | −1,480−2.1% | Reduced |
| Kempen Capital Management N.V. | 74,305 | $3.60M | 0.04% | −30,761−29.3% | Reduced |
| Kennedy Capital Management, Inc. | 75,903 | $3.68M | 0.09% | +75,903 | New |
| Martingale Asset Management L P | 82,945 | $4.02M | 0.10% | +6,146+8.0% | Added |
| Prudential Financial Inc | 84,829 | $4.11M | 0.01% | −51,420−37.7% | Reduced |
| Thrivent Financial for Lutherans | 84,829 | $4.11M | 0.01% | −2,286−2.6% | Reduced |
| Jacobs Levy Equity Management, Inc | 86,379 | $4.19M | 0.02% | +86,379 | New |
| Citigroup Inc | 87,490 | $4.24M | 0.00% | +474+0.5% | Added |
| Susquehanna International Group, LLP | 93,279 | $4.52M | 0.01% | +65,391+234.5% | Added |
| Alliancebernstein L.P. | 100,366 | $4.86M | 0.00% | +36,652+57.5% | Added |
| Meiji Yasuda Asset Management Co Ltd. | 100,842 | $4.89M | 0.20% | +21,303+26.8% | Added |
| Northstar Asset Management Inc | 101,529 | $4.92M | 1.46% | +6,686+7.0% | Added |
| American Century Companies Inc | 104,203 | $5.05M | 0.00% | +14,826+16.6% | Added |
| Man Group plc | 104,997 | $5.09M | 0.02% | +3,507+3.5% | Added |
| Barclays PLC | 109,095 | $5.29M | 0.00% | −23,310−17.6% | Reduced |
| Bank of America Corp | 110,871 | $5.37M | 0.00% | +3,511+3.3% | Added |
| Jupiter Asset Management Ltd | 112,681 | $5.46M | 0.05% | +112,681 | New |
| Deutsche Bank AG | 113,069 | $5.48M | 0.00% | −6,835−5.7% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 113,715 | $5.51M | 0.03% | +1,535+1.4% | Added |
| New Age Alpha Advisors, LLC | 114,885 | $5.57M | 0.25% | +16,851+17.2% | Added |
| AQR Capital Management LLC | 114,980 | $5.57M | 0.01% | +49,420+75.4% | Added |
| Swiss National Bank | 115,300 | $5.59M | 0.00% | −400−0.3% | Reduced |
| UBS Group AG | 121,499 | $5.89M | 0.00% | −19,592−13.9% | Reduced |
| Jane Street Group, LLC | 123,379 | $5.98M | 0.01% | +123,379 | New |
| Great West Life Assurance Co | 126,823 | $6.16M | 0.01% | −2,942−2.3% | Reduced |
| Aptus Capital Advisors, LLC | 140,885 | $6.83M | 0.08% | +15,907+12.7% | Added |
| Thematics Asset Management | 154,470 | $7.49M | 0.38% | −32,000−17.2% | Reduced |
| ProShare Advisors LLC | 167,419 | $8.11M | 0.02% | −14,782−8.1% | Reduced |
| Ameriprise Financial Inc | 182,751 | $8.86M | 0.00% | +32,984+22.0% | Added |
| Rhumbline Advisers | 187,820 | $9.10M | 0.01% | −8,056−4.1% | Reduced |
| Public Sector Pension Investment Board | 188,605 | $9.14M | 0.04% | +40,469+27.3% | Added |