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 2023
Institutional positions in California Water Service Group as of Mar 31, 2023. 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
- 299
- +7 vs. Q4 2022
- Shares held
- 44.9M
- +207.7K (+0.5%) vs. Q4 2022
- Total value
- $2.61B
- −$93.1M (−3.4%) vs. Q4 2022
- New holders
- 32
- 99 more added
- Sold out
- 25
- 101 more reduced
3 institutions that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2022: 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 2023
Shares, value and share of portfolio for each institution holding California Water Service Group; share changes are against Q4 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock Inc. | 10,300,564 | $599.5M | 0.02% | −109,071−1.0% | Reduced |
| Vanguard Group Inc | 6,744,399 | $392.5M | 0.01% | −17,252−0.3% | Reduced |
| State Street Corp | 4,875,131 | $283.7M | 0.02% | −461,891−8.7% | Reduced |
| T. Rowe Price Investment Management, Inc. | 2,356,523 | $137.2M | 0.10% | +26,176+1.1% | Added |
| Impax Asset Management Group plc | 1,523,505 | $88.7M | 0.37% | 00.0% | Unchanged |
| Pictet Asset Management SA | 1,514,329 | $88.1M | 0.11% | −69,460−4.4% | Reduced |
| Dimensional Fund Advisors LP | 1,213,745 | $70.6M | 0.02% | −43,779−3.5% | Reduced |
| Amundi | 1,136,960 | $66.7M | 0.04% | +1,260+0.1% | Added |
| Geode Capital Management, LLC | 1,056,075 | $61.5M | 0.01% | +54,957+5.5% | Added |
| Invesco Ltd. | 1,012,065 | $58.9M | 0.02% | −4,461−0.4% | Reduced |
| Northern Trust Corp | 954,751 | $55.6M | 0.01% | −17,083−1.8% | Reduced |
| Nuance Investments, LLC | 839,285 | $48.8M | 1.03% | −6,949−0.8% | Reduced |
| Bank of New York Mellon Corp | 672,283 | $39.1M | 0.01% | −15,540−2.3% | Reduced |
| Morgan Stanley | 664,637 | $38.7M | 0.00% | +20,830+3.2% | Added |
| Norges Bank | 534,051 | $31.1M | 0.01% | +16,459+3.2% | Added |
| KBC Group NV | 530,409 | $30.9M | 0.13% | +23,989+4.7% | Added |
| Charles Schwab Investment Management Inc | 522,474 | $30.4M | 0.01% | +1,452+0.3% | Added |
| First Trust Advisors LP | 506,153 | $29.5M | 0.03% | +35,519+7.5% | Added |
| Legal & General Group Plc | 365,934 | $21.3M | 0.01% | −131,376−26.4% | Reduced |
| Empower Advisory Group, LLC | 334,206 | $19.3M | 0.09% | +334,206 | New |
| Principal Financial Group Inc | 331,159 | $19.3M | 0.01% | −4,455−1.3% | Reduced |
| Granite Investment Partners, LLC | 330,158 | $19.2M | 0.80% | −3,903−1.2% | Reduced |
| Ameriprise Financial Inc | 221,890 | $12.9M | 0.00% | −7,042−3.1% | Reduced |
| ProShare Advisors LLC | 180,657 | $10.5M | 0.03% | +27,424+17.9% | Added |
| Rhumbline Advisers | 176,325 | $10.3M | 0.01% | +9,597+5.8% | Added |
| Goldman Sachs Group Inc | 174,094 | $10.1M | 0.00% | −6,033−3.3% | Reduced |
| Nuveen Asset Management, LLC | 168,376 | $9.80M | 0.00% | −12,845−7.1% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 160,921 | $9.37M | 0.05% | −35,053−17.9% | Reduced |
| Thematics Asset Management | 149,470 | $8.70M | 0.47% | +17,000+12.8% | Added |
| Deutsche Bank AG | 146,921 | $8.55M | 0.00% | +12,099+9.0% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 140,448 | $8.17M | 0.07% | −4,105−2.8% | Reduced |
| JPMorgan Chase & Co | 138,231 | $8.05M | 0.00% | +42,077+43.8% | Added |
| UBS Asset Management Americas Inc | 125,732 | $7.32M | 0.00% | +3,577+2.9% | Added |
| Swiss National Bank | 118,300 | $6.89M | 0.00% | −13,000−9.9% | Reduced |
| TD Asset Management Inc | 116,240 | $6.77M | 0.01% | −7,800−6.3% | Reduced |
| Walleye Capital LLC | 105,740 | $6.15M | 0.12% | +105,740 | New |
| Great West Life Assurance Co | 105,148 | $6.12M | 0.02% | +3,499+3.4% | Added |
| Public Sector Pension Investment Board | 96,423 | $5.61M | 0.04% | −3,318−3.3% | Reduced |
| Bank of America Corp | 88,804 | $5.17M | 0.00% | +28,155+46.4% | Added |
| Raymond James & Associates | 87,743 | $5.11M | 0.00% | −2,058−2.3% | Reduced |
| Voloridge Investment Management, LLC | 80,786 | $4.70M | 0.02% | +47,944+146.0% | Added |
| Price T Rowe Associates Inc | 79,741 | $4.64M | 0.00% | +4,492+6.0% | Added |
| Alliancebernstein L.P. | 79,733 | $4.64M | 0.00% | −9,088−10.2% | Reduced |
| Maryland State Retirement & Pension System | 78,238 | $4.55M | 0.10% | +42,412+118.4% | Added |
| Renaissance Technologies LLC | 77,300 | $4.50M | 0.01% | +40,200+108.4% | Added |
| Meiji Yasuda Asset Management Co Ltd. | 75,648 | $4.40M | 0.23% | +75,648 | New |
| SG Americas Securities, LLC | 73,734 | $4.29M | 0.06% | +51,552+232.4% | Added |
| Storebrand Asset Management AS | 72,705 | $4.23M | 0.02% | +4,332+6.3% | Added |
| Aptus Capital Advisors, LLC | 71,451 | $4.16M | 0.12% | +8,390+13.3% | Added |
| Northstar Asset Management Inc | 69,382 | $4.04M | 1.24% | +2,206+3.3% | Added |
| Prudential Financial Inc | 68,685 | $4.00M | 0.01% | +13,565+24.6% | Added |
| California State Teachers Retirement System | 68,356 | $3.98M | 0.01% | −605−0.9% | Reduced |
| ExodusPoint Capital Management, LP | 66,727 | $3.88M | 0.04% | +51,253+331.2% | Added |
| Clear Harbor Asset Management, LLC | 64,340 | $3.74M | 0.39% | −350−0.5% | Reduced |
| New York State Common Retirement Fund | 61,390 | $3.57M | 0.00% | −10,701−14.8% | Reduced |
| Raymond James Financial Services Advisors, Inc. | 59,663 | $3.47M | 0.01% | +1,247+2.1% | Added |
| New York State Teachers Retirement System | 58,042 | $3.38M | 0.01% | −100−0.2% | Reduced |
| Financial Counselors Inc | 57,183 | $3.33M | 0.07% | +543+1.0% | Added |
| Arjuna Capital | 56,041 | $3.26M | 1.28% | +29,799+113.6% | Added |
| BNP Paribas Arbitrage, SA | 55,514 | $3.23M | 0.01% | +19,497+54.1% | Added |
| Millennium Management LLC | 54,383 | $3.17M | 0.00% | −75,581−58.2% | Reduced |
| Thrivent Financial for Lutherans | 54,331 | $3.16M | 0.01% | −1,905−3.4% | Reduced |
| Credit Suisse AG | 51,502 | $3.00M | 0.00% | +4,039+8.5% | Added |
| Mercer Global Advisors Inc | 50,795 | $2.96M | 0.01% | +697+1.4% | Added |
| Texas Permanent School Fund | 49,166 | $2.86M | 0.03% | +12,308+33.4% | Added |
| Envestnet Asset Management Inc | 48,932 | $2.85M | 0.00% | +424+0.9% | Added |
| Wells Fargo & Company | 48,824 | $2.84M | 0.00% | +6,409+15.1% | Added |
| UBS Group AG | 47,139 | $2.74M | 0.00% | −19,067−28.8% | Reduced |
| Bank of Montreal | 44,777 | $2.61M | 0.00% | +3,026+7.2% | Added |
| Nia Impact Advisors, LLC | 44,013 | $2.56M | 1.38% | −1,270−2.8% | Reduced |
| Ergoteles LLC | 43,604 | $2.54M | 0.10% | +43,604 | New |
| Gabelli Funds LLC | 43,200 | $2.51M | 0.02% | −300−0.7% | Reduced |
| First National Corp | 38,907 | $2.26M | 0.54% | −7,705−16.5% | Reduced |
| State of New Jersey Common Pension Fund D | 38,782 | $2.26M | 0.01% | +3,012+8.4% | Added |
| Martingale Asset Management L P | 38,692 | $2.25M | 0.04% | +1,400+3.8% | Added |
| Cubist Systematic Strategies, LLC | 38,242 | $2.23M | 0.02% | −3,760−9.0% | Reduced |
| AQR Capital Management LLC | 38,115 | $2.22M | 0.00% | +7,624+25.0% | Added |
| State of Alaska, Department of Revenue | 37,596 | $2.19M | 0.03% | −579−1.5% | Reduced |
| Citadel Advisors LLC | 36,344 | $2.12M | 0.00% | −7,663−17.4% | Reduced |
| CoreCommodity Management, LLC | 35,999 | $2.10M | 0.60% | −62−0.2% | Reduced |
| Magellan Asset Management Ltd | 35,933 | $2.09M | 0.02% | −2,671−6.9% | Reduced |
| Bridgewater Associates, LP | 33,100 | $1.93M | 0.01% | +181+0.5% | Added |
| Private Advisor Group, LLC | 31,584 | $1.84M | 0.02% | −318−1.0% | Reduced |
| Susquehanna International Group, LLP | 31,397 | $1.83M | 0.00% | +26,810+584.5% | Added |
| Yousif Capital Management, LLC | 30,783 | $1.79M | 0.02% | −4,005−11.5% | Reduced |
| Squarepoint Ops LLC | 30,627 | $1.78M | 0.01% | +18,795+158.8% | Added |
| State of Tennessee, Treasury Department | 30,024 | $1.75M | 0.01% | +7,134+31.2% | Added |
| American International Group, Inc. | 29,666 | $1.73M | 0.01% | +129+0.4% | Added |
| MetLife Investment Management | 28,612 | $1.67M | 0.01% | 00.0% | Unchanged |
| Barclays PLC | 27,991 | $1.63M | 0.00% | +1,624+6.2% | Added |
| Mirae Asset Global Investments Co., Ltd. | 27,942 | $1.63M | 0.00% | +54+0.2% | Added |
| Balyasny Asset Management LLC | 27,670 | $1.61M | 0.01% | +18,207+192.4% | Added |
| Schroder Investment Management Group | 26,101 | $1.52M | 0.00% | −3,489−11.8% | Reduced |
| Bridge City Capital, LLC | 25,825 | $1.50M | 0.75% | −99−0.4% | Reduced |
| Louisiana State Employees Retirement System | 25,600 | $1.49M | 0.04% | −400−1.5% | Reduced |
| Janus Henderson Group PLC | 25,349 | $1.47M | 0.00% | +15,102+147.4% | Added |
| Advisor Group Holdings, Inc. | 25,117 | $1.46M | 0.00% | +19,812+373.5% | Added |
| Citigroup Inc | 24,862 | $1.45M | 0.00% | −8,026−24.4% | Reduced |
| Amalgamated Bank | 23,722 | $1.38M | 0.01% | −1,684−6.6% | Reduced |
| Teton Advisors, Inc. | 23,600 | $1.37M | 0.36% | 00.0% | Unchanged |