California Water Service Group
US ˙ NYSE ˙ US1307881029

SecurityCWT / California Water Service Group
InstitutionAllianz Asset Management GmbH
Latest Disclosed Ownership58,862 shares
Latest Disclosed Value $ 2,668,803
Allianz Asset Management GmbH reports 9.93% increase in ownership of CWT / California Water Service Group

On May 11, 2026 - Allianz Asset Management GmbH filed a 13F-HR form disclosing ownership of 58,862 shares of California Water Service Group (US:CWT) valued at $2,668,803 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 53,544 shares of California Water Service Group. This represents a change in shares of 9.93% during the quarter. The current value of the position is $2,697,057 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)
2026-05-11 2026-03-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 58,862 5,318 9.93 2,669 15.00 0.0010
2026-02-11 2025-12-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 53,544 3,116 6.18 2,320 0.26 0.0023
2025-11-04 2025-09-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 50,428 4,003 8.62 2,314 9.62 0.0026
2025-07-28 2025-06-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 46,425 10,643 29.74 2,111 21.81 0.0025
2025-05-05 2025-03-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 35,782 29,682 486.59 1,734 527.90 0.0023
2025-02-03 2024-12-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 6,100 -4,500 -42.45 277 -51.92 0.0004
2024-11-13 2024-09-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 10,600 3,300 45.21 575 62.61 0.0008
2024-08-13 2024-06-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 7,300 0 0.00 354 4.13 0.0005
2024-05-14 2024-03-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 7,300 0 0.00 339 -10.32 0.0005
2024-02-12 2023-12-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 7,300 -19,100 -72.35 379 -69.71 0.0006
2023-11-13 2023-09-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 26,400 11,000 71.43 1,249 56.98 0.0021
2023-08-14 2023-06-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 15,400 15,400 795 0.0014
2022-11-08 2022-09-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 0 -12,983 -100.00 0 -100.00
2022-08-12 2022-06-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 12,983 -4,358 -25.13 721 -29.86 0.0007
2022-05-13 2022-03-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 17,341 196 1.14 1,028 -16.56 0.0008
2022-02-11 2021-12-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 17,145 -93 -0.54 1,232 21.26 0.0009
2021-11-10 2021-09-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 17,238 1,013 6.24 1,016 12.76 0.0008
2021-08-16 2021-06-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 16,225 272 1.71 901 0.22 0.0008
2021-05-13 2021-03-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 15,953 -29,398 -64.82 899 -63.31 0.0009
2021-02-16 2020-12-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 45,351 -9,810 -17.78 2,450 2.25 0.0024
2020-11-13 2020-09-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 55,161 -351,703 -86.44 2,396 -87.65 0.0028
2020-08-14 2020-06-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 406,864 28,162 7.44 19,408 1.85 0.0224
2020-05-14 2020-03-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 378,702 -102,077 -21.23 19,056 -23.13 0.0256
2020-02-13 2019-12-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 480,779 102,877 27.22 24,789 23.93 0.0227
2019-11-13 2019-09-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 377,902 88,190 30.44 20,002 36.36 0.0197
2019-08-08 2019-06-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 289,712 12,988 4.69 14,668 -2.35 0.0136
2019-05-13 2019-03-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 276,724 61,025 28.29 15,021 46.12 0.0149
2019-04-02 2018-12-31 13F/A-1 CALIFORNIA WTR SVC GROUP COM 130788102 215,699 215,699 10,280 0.0113
2019-02-13 2018-12-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 215,699 215,699 10,280
2017-01-24 2015-09-30 13F/A-2 CALIFORNIA WTR SVC GROUP COM 130788102 0 -153,000 -100.00 0 -100.00
2015-09-22 2015-06-30 13F/A-1 CALIFORNIA WTR SVC GROUP COM 130788102 153,000 13,000 9.29 3,496 1.89 0.0037
2015-08-14 2015-06-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 153,000 3,496
2017-01-24 2015-03-31 13F/A-1 CALIFORNIA WTR SVC GROUP COM 130788102 140,000 140,000 3,431 0.0039
2015-05-15 2015-03-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 140,000 3,431,400 0.0039
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.