California Water Service Group
US ˙ NYSE ˙ US1307881029

SecurityCWT / California Water Service Group
InstitutionCENTRAL TRUST Co
Latest Disclosed Ownership304 shares
Latest Disclosed Value $ 13,784
CENTRAL TRUST Co ownership in CWT / California Water Service Group

On April 17, 2026 - CENTRAL TRUST Co filed a 13F-HR form disclosing ownership of 304 shares of California Water Service Group (US:CWT) valued at $13,783 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 304 shares of California Water Service Group. This represents a change in shares of 0.00% during the quarter. The current value of the position is $13,604 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-04-17 2026-03-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 304 0 0.00 14 0.00 0.0003
2026-02-02 2025-12-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 304 0 0.00 13 0.00 0.0003
2025-11-06 2025-09-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 304 0 0.00 14 0.00 0.0003
2025-08-07 2025-06-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 304 0 0.00 14 -7.14 0.0003
2025-04-18 2025-03-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 304 0 0.00 15 7.69 0.0004
2025-01-24 2024-12-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 304 0 0.00 14 -18.75 0.0003
2024-10-22 2024-09-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 304 0 0.00 16 14.29 0.0004
2024-08-05 2024-06-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 304 0 0.00 15 0.00 0.0004
2024-04-24 2024-03-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 304 0 0.00 14 -6.67 0.0004
2024-01-24 2023-12-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 304 0 0.00 16 7.14 0.0004
2023-10-26 2023-09-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 304 0 0.00 14 -6.67 0.0004
2023-07-26 2023-06-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 304 0 0.00 16 -11.76 0.0004
2023-04-19 2023-03-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 304 0 0.00 18 -5.56 0.0005
2023-01-26 2022-12-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 304 0 0.00 18 12.50 0.0006
2022-11-17 2022-09-30 13F/A-2 CALIFORNIA WTR SVC GROUP COM 130788102 304 0 0.00 16 -5.88 0.0005
2022-11-04 2022-09-30 13F/A-1 CALIFORNIA WTR SVC GROUP COM 130788102 304 0 17 0.0003
2022-11-03 2022-09-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 304 0 17 0.0003
2022-08-09 2022-06-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 304 0 0.00 17 -5.56 0.0006
2022-05-03 2022-03-31 13F CALIFORNIA WATER SERVICE GRP COMMON STOCK 130788102 304 0 0.00 18 -18.18 0.0005
2022-02-08 2021-12-31 13F CALIFORNIA WATER SERVICE GRP COMMON STOCK 130788102 304 0 0.00 22 22.22 0.0006
2021-10-19 2021-09-30 13F CALIFORNIA WATER SERVICE GRP COMMON STOCK 130788102 304 0 0.00 18 5.88 0.0006
2021-07-23 2021-06-30 13F CALIFORNIA WATER SERVICE GRP COMMON STOCK 130788102 304 0 0.00 17 0.00 0.0006
2021-04-23 2021-03-31 13F CALIFORNIA WATER SERVICE GRP COMMON STOCK 130788102 304 0 0.00 17 6.25 0.0007
2021-01-29 2020-12-31 13F CALIFORNIA WATER SERVICE GRP COMMON STOCK 130788102 304 -304 -50.00 16 -38.46 0.0007
2020-10-22 2020-09-30 13F CALIFORNIA WATER SERVICE GRP COMMON STOCK 130788102 608 0 0.00 26 -10.34 0.0012
2020-07-14 2020-06-30 13F CALIFORNIA WATER SERVICE GRP COMMON STOCK 130788102 608 0 0.00 29 -6.45 0.0015
2020-04-17 2020-03-31 13F CALIFORNIA WATER SERVICE GRP COMMON STOCK 130788102 608 0 0.00 31 0.00 0.0019
2020-01-21 2019-12-31 13F CALIFORNIA WATER SERVICE GRP COMMON STOCK 130788102 608 0 0.00 31 -3.12 0.0016
2019-10-28 2019-09-30 13F CALIFORNIA WATER SERVICE GRP COMMON STOCK 130788102 608 0 0.00 32 3.23 0.0018
2019-07-12 2019-06-30 13F CALIFORNIA WATER SERVICE GRP COMMON STOCK 130788102 608 0 0.00 31 -6.06 0.0018
2019-04-26 2019-03-31 13F CALIFORNIA WATER SERVICE GRP COMMON STOCK 130788102 608 0 0.00 33 13.79 0.0020
2019-01-08 2018-12-31 13F CALIFORNIA WATER SERVICE GRP COMMON STOCK 130788102 608 304 100.00 29 123.08 0.0019
2018-10-04 2018-09-30 13F CALIFORNIA WATER SERVICE GRP COMMON STOCK 130788102 304 304 13 0.0008
2018-07-09 2018-06-30 13F CALIFORNIA WATER SERVICE GRP COMMON STOCK 130788102 0 -200 -100.00 0 -100.00
2018-04-04 2018-03-31 13F CALIFORNIA WATER SERVICE GRP COMMON STOCK 130788102 200 148 284.62 7 250.00 0.0004
2018-01-23 2017-12-31 13F CALIFORNIA WATER SERVICE GRP COMMON STOCK 130788102 52 0 0.00 2 0.00 0.0001
2017-10-17 2017-09-30 13F CALIFORNIA WATER SERVICE GRP COMMON STOCK 130788102 52 -200 -79.37 2 -77.78 0.0001
2017-07-14 2017-06-30 13F CALIFORNIA WATER SERVICE GRP COMMON STOCK 130788102 252 52 26.00 9 28.57 0.0006
2017-04-06 2017-03-31 13F CALIFORNIA WATER SERVICE GRP COMMON STOCK 130788102 200 200 7 0.0005
2016-04-11 2016-03-31 13F CALIFORNIA WATER SERVICE GRP COMMON STOCK 130788102 0 -385 -100.00 0 -100.00
2016-01-21 2015-12-31 13F CALIFORNIA WATER SERVICE GRP COMMON STOCK 130788102 385 0 0.00 9 0.00 0.0007
2015-10-14 2015-09-30 13F CALIFORNIA WATER SERVICE GRP COMMON STOCK 130788102 385 0 0.00 9 0.00 0.0008
2015-07-28 2015-06-30 13F CALIFORNIA WATER SERVICE GRP COMMON STOCK 130788102 385 0 0.00 9 0.00 0.0007
2015-04-09 2015-03-31 13F CALIFORNIA WATER SERVICE GRP COMMON STOCK 130788102 385 0 0.00 9 0.00 0.0007
2015-01-16 2014-12-31 13F CALIFORNIA WATER SERVICE GRP COMMON STOCK 130788102 385 0 0.00 9 0.00 0.0007
2014-10-23 2014-09-30 13F CALIFORNIA WATER SERVICE GRP COMMON STOCK 130788102 385 0 0.00 9 0.00 0.0007
2014-05-07 2014-03-31 13F CALIFORNIA WATER SERVICE GRP COMMON STOCK 130788102 385 0 0.00 9 0.00 0.0007
2014-01-27 2013-12-31 13F CALIFORNIA WATER SERVICE GRP COMMON STOCK 130788102 385 0 0.00 9 12.50 0.0008
2013-10-24 2013-09-30 13F CALIFORNIA WATER SERVICE GRP COMMON STOCK 130788102 385 0 0.00 8 0.00 0.0007
2013-08-13 2013-06-30 13F CALIFORNIA WATER SERVICE GRP COMMON STOCK 130788102 385 385 8 0.0008
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.