California Water Service GrpCWT
13F holders, Q4 2025 (December 31)329holders −8
26new positions
39sold out
6famous investors
$43.33avg. 13F price*
At the end of Q4 2025, 329 institutions reported holding California Water Service Grp (CWT) in their 13F filings, down 8 from Q3 2025. 26 opened new positions and 39 sold out. The largest holders were BlackRock, Inc. ($462.8M), Vanguard Group Inc. ($318.3M) and T. Rowe Price Investment Management, Inc. ($144.6M). 6 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Ken Griffin (0.0% of Citadel Advisors's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- California Water Service Grp
- CUSIP
- 130788102
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 26 | $20.7M |
| Exits | 39 | $13.5M |
All 13F filers, Q3 2025 → Q4 2025: 2,398,298 shares bought and 2,309,649 shares sold, net +88,649 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 329 holders
| BlackRock, Inc. | 0.01% | Add +2.2% | 10,681,351 | $462.8M |
| Vanguard Group Inc. | 0.00% | Add +0.5% | 7,346,457 | $318.3M |
| T. Rowe Price Investment Management, Inc. | 0.09% | Add +1.1% | 3,337,205 | $144.6M |
| State Street Corp. | 0.00% | Reduce -2.3% | 3,029,950 | $131.3M |
| Amundi | 0.04% | Add +20.3% | 2,738,993 | $118.6M |
| Nuance Investments, LLC | 8.71% | Add +3.5% | 1,825,390 | $79.1M |
| FMR LLC | 0.00% | Add +28.0% | 1,796,148 | $77.8M |
| Geode Capital Management, LLC | 0.00% | Add +0.3% | 1,420,950 | $61.6M |
| First Trust Advisors LP | 0.04% | Reduce -2.6% | 1,367,978 | $59.3M |
| Dimensional Fund Advisors LP | 0.01% | Add +0.4% | 1,153,931 | $50.0M |
| Invesco Ltd. | 0.00% | Add +6.4% | 954,234 | $41.3M |
| Morgan Stanley | 0.00% | Reduce -4.4% | 767,034 | $33.2M |
| Legal & General Group Plc | 0.01% | Add +0.5% | 763,847 | $33.1M |
| CBRE Investment Management Listed Real Assets LLC | 0.46% | Reduce -1.1% | 722,345 | $31.3M |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -1.1% | 710,668 | $30.8M |
| Northern Trust Corp. | 0.00% | Reduce -6.7% | 611,552 | $26.5M |
| Bank of New York Mellon Corp | 0.00% | Reduce -11.3% | 504,836 | $21.9M |
| KBC Group NV | 0.04% | No change | 446,627 | $19.4M |
| Nuveen, LLC | 0.01% | Add +12.5% | 440,074 | $19.1M |
| Triodos Investment Management BV | 1.30% | Reduce -16.0% | 414,000 | $18.0M |
| Beck Bode, LLC | 2.80% | Reduce -3.4% | 388,418 | $16.8M |
| Victory Capital Management Inc. | 0.01% | Add +17.7% | 315,465 | $13.7M |
| Principal Financial Group Inc. | 0.01% | Reduce -1.3% | 284,023 | $12.3M |
| Raymond James Financial Inc. | 0.00% | Reduce -5.5% | 281,888 | $12.2M |
| ExodusPoint Capital Management, LP | 0.12% | New | 238,840 | $10.3M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Reduce -3.0% | 234,643 | $10.2M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -13.0% | 226,290 | $9.8M |
| JPMorgan Chase & Co. | 0.00% | Reduce -18.5% | 225,886 | $9.8M |
| UBS Group AG | 0.00% | Reduce -10.8% | 214,279 | $9.3M |
| Public Sector Pension Investment Board | 0.03% | Reduce -11.3% | 206,197 | $8.9M |
| Aptus Capital Advisors, LLC | 0.07% | Add +0.4% | 179,202 | $7.8M |
| Rhumbline Advisers | 0.01% | Reduce -8.4% | 173,665 | $7.5M |
| Citadel Advisors | 0.01% | Add +1143.8% | 172,730 | $7.5M |
| ProShare Advisors LLC | 0.01% | Add +0.7% | 150,627 | $6.5M |
| Ameriprise Financial Inc. | 0.00% | Reduce -6.0% | 147,110 | $6.4M |
| Trexquant Investment LP | 0.05% | Add +102.7% | 135,592 | $5.9M |
| American Century Companies Inc. | 0.00% | Reduce -43.8% | 128,016 | $5.5M |
| Barclays PLC | 0.00% | Add +11.5% | 122,521 | $5.3M |
| Federated Hermes, Inc. | 0.01% | Add +21.4% | 122,020 | $5.3M |
| Swiss National Bank | 0.00% | Add +1.8% | 117,500 | $5.1M |
| Commonwealth of Pennsylvania Public School Empls Retrmt SYS | 0.02% | Reduce -0.4% | 112,152 | $4.9M |
| Renaissance Technologies | 0.01% | Reduce -62.8% | 111,900 | $4.8M |
| Bank of America Corp. | 0.00% | Reduce -33.7% | 99,074 | $4.3M |
| Wells Fargo & Company | 0.00% | Add +24.1% | 98,602 | $4.3M |
| CANADA LIFE ASSURANCE Co | 0.01% | Reduce -27.3% | 97,181 | $4.2M |
| Crawford Investment Counsel Inc. | 0.07% | Add +2.2% | 91,989 | $4.0M |
| Millennium Management | 0.00% | Reduce -75.5% | 90,157 | $3.9M |
| Mariner, LLC | 0.00% | Reduce -9.0% | 87,097 | $3.8M |
| Deutsche Bank AG | 0.00% | Add +3.6% | 86,990 | $3.8M |
| Meiji Yasuda Asset Management Co Ltd. | 0.18% | Reduce -7.9% | 84,799 | $3.7M |
| Alliancebernstein L.P. | 0.00% | Reduce -41.0% | 83,254 | $3.6M |
| Northstar Asset Management Inc. | 0.93% | Reduce -21.9% | 82,861 | $3.6M |
| Martingale Asset Management L P | 0.09% | Reduce -1.4% | 81,447 | $3.5M |
| Jacobs Levy Equity Management, Inc. | 0.01% | Reduce -3.9% | 80,919 | $3.5M |
| T. Rowe Price Associates Inc. | 0.00% | Reduce -50.9% | 74,380 | $3.2M |
| Prudential Financial Inc. | 0.00% | Reduce -16.2% | 69,833 | $3.0M |
| D. E. Shaw & Co. | 0.00% | Add +82.0% | 66,191 | $2.9M |
| Maryland State Retirement & Pension System | 0.06% | Add +1.1% | 64,497 | $2.8M |
| New York State Teachers Retirement System | 0.01% | Add +0.6% | 63,002 | $2.7M |
| AQR Capital Management | 0.00% | Reduce -46.4% | 61,139 | $2.6M |
| TD Asset Management Inc | 0.00% | Add +11.8% | 58,038 | $2.5M |
| Storebrand Asset Management As | 0.01% | No change | 57,549 | $2.5M |
| California State Teachers Retirement System | 0.00% | Reduce -0.1% | 56,718 | $2.5M |
| Midwest Trust Co | 0.03% | Reduce -1.4% | 54,428 | $2.4M |
| Fideuram - Intesa Sanpaolo Private Banking S.P.A. | 0.08% | — | 54,407 | $2.4M |
| Allianz Asset Management GmbH | 0.00% | Add +6.2% | 53,544 | $2.3M |
| Rodgers Brothers Inc. | 0.27% | Reduce -9.7% | 52,175 | $2.3M |
| Citigroup Inc. | 0.00% | Add +8.6% | 52,051 | $2.3M |
| Exchange Traded Concepts, LLC | 0.02% | Reduce -1.2% | 51,375 | $2.2M |
| Franklin Resources Inc. | 0.00% | Add +8.5% | 50,393 | $2.2M |
| Arrowstreet Capital, Limited Partnership | 0.00% | Reduce -12.7% | 49,909 | $2.2M |
| Clear Harbor Asset Management, LLC | 0.15% | Reduce -2.6% | 49,660 | $2.2M |
| Magellan Asset Management Ltd | 0.03% | Add +5.9% | 48,734 | $2.1M |
| State of New Jersey Common Pension Fund D | 0.01% | Add +5.4% | 47,930 | $2.1M |
| Jane Street Group, LLC | 0.00% | Reduce -61.0% | 43,384 | $1.9M |
| Gabelli Funds LLC | 0.01% | No change | 43,200 | $1.9M |
| AlphaQuest LLC | 0.10% | Add +35.1% | 43,190 | $1.9M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +3.2% | 43,130 | $1.9M |
| Thrivent Financial for Lutherans | 0.00% | Reduce -4.6% | 42,607 | $1.8M |
| Point72 Asset Management | 0.00% | New | 40,192 | $1.7M |
| SG Americas Securities, LLC | 0.00% | Reduce -11.3% | 39,820 | $1.7M |
| Bridge City Capital, LLC | 0.49% | Reduce -14.0% | 38,576 | $1.7M |
| Zimmer Partners, LP | 0.04% | New | 38,500 | $1.7M |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.00% | Add +5.4% | 37,324 | $1.6M |
| Nia Impact Advisors, LLC | 0.54% | Reduce -1.1% | 37,216 | $1.6M |
| XTX Topco Ltd | 0.04% | New | 36,819 | $1.6M |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.00% | Add +184.3% | 35,631 | $1.5M |
| CenterBook Partners LP | 0.07% | Add +66.5% | 34,261 | $1.5M |
| HRT Financial LP | 0.00% | Add +62.9% | 34,201 | $1.5M |
| State of Wisconsin Investment Board | 0.00% | Reduce -6.3% | 33,894 | $1.5M |
| Illinois Municipal Retirement Fund | 0.02% | Add +7.4% | 33,835 | $1.5M |
| Macquarie Group Ltd. | 0.01% | Reduce -0.4% | 33,632 | $1.5M |
| Vontobel Holding Ltd. | 0.00% | Add +21.2% | 33,616 | $1.5M |
| MetLife Investment Management, LLC | 0.01% | Reduce -3.1% | 33,337 | $1.4M |
| Canada Pension Plan Investment Board | 0.00% | Add +26.7% | 32,700 | $1.4M |
| State of Alaska, Department of Revenue | 0.01% | Add +1.2% | 32,163 | $1.4M |
| CoreCommodity Management, LLC | 0.29% | Add +23.9% | 31,684 | $1.4M |
| BNP Paribas Financial Markets | 0.00% | Reduce -41.1% | 31,601 | $1.4M |
| New York State Common Retirement Fund | 0.00% | No change | 30,544 | $1.3M |
| South Dakota Investment Council | 0.02% | Add +88.0% | 29,915 | $1.3M |
"% of holder's portfolio" is CWT's weight in each manager's 13F, not the share of California Water Service Grp the manager owns.