California Water Service Group
DE ˙ DB ˙ US1307881029
37,40 € ↓ -1,00 (-2,60%)
2026-06-02
AKTIENPREIS
SecurityDE:WT5 / California Water Service Group
InstitutionBlackhill Capital Inc
Latest Disclosed Ownership7,600 shares
Latest Disclosed Value $ 344,584
Blackhill Capital Inc ownership in WT5 / California Water Service Group

On May 14, 2026 - Blackhill Capital Inc filed a 13F-HR form disclosing ownership of 7,600 shares of California Water Service Group (DE:WT5) valued at $304,000 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 7,600 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 $284,240 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)
2026-05-14 2026-03-31 13F CALIFORNIA WTR SVC GROUP COM COM 130788102 7,600 0 0.00 345 4.56 0.0177
2026-02-13 2025-12-31 13F CALIFORNIA WTR SVC GROUP COM COM 130788102 7,600 0 0.00 329 -5.46 0.0169
2025-11-13 2025-09-30 13F CALIFORNIA WTR SVC GROUP COM COM 130788102 7,600 0 0.00 349 0.87 0.0173
2025-08-14 2025-06-30 13F CALIFORNIA WTR SVC GROUP COM COM 130788102 7,600 0 0.00 346 -6.25 0.0199
2025-05-14 2025-03-31 13F CALIFORNIA WTR SVC GROUP COM COM 130788102 7,600 0 0.00 368 6.98 0.0214
2025-02-13 2024-12-31 13F CALIFORNIA WTR SVC GROUP COM COM 130788102 7,600 0 0.00 345 -16.50 0.0179
2024-11-12 2024-09-30 13F CALIFORNIA WTR SVC GROUP COM COM 130788102 7,600 0 0.00 412 11.96 0.0237
2024-08-13 2024-06-30 13F CALIFORNIA WTR SVC GROUP COM COM 130788102 7,600 0 0.00 369 4.25 0.0229
2024-05-14 2024-03-31 13F CALIFORNIA WTR SVC GROUP COM COM 130788102 7,600 0 0.00 353 -10.41 0.0203
2024-02-12 2023-12-31 13F CALIFORNIA WTR SVC GROUP COM COM 130788102 7,600 0 0.00 394 9.75 0.0316
2023-11-13 2023-09-30 13F CALIFORNIA WTR SVC GROUP COM COM 130788102 7,600 0 0.00 360 -8.42 0.0346
2023-08-11 2023-06-30 13F CALIFORNIA WTR SVC GROUP COM COM 130788102 7,600 0 0.00 392 -11.31 0.0421
2023-05-12 2023-03-31 13F CALIFORNIA WTR SVC GROUP COM COM 130788102 7,600 0 0.00 442 -3.91 0.0494
2023-02-13 2022-12-31 13F CALIFORNIA WTR SVC GROUP COM COM 130788102 7,600 0 0.00 461 15.00 0.0534
2022-11-14 2022-09-30 13F CALIFORNIA WTR SVC GROUP COM COM 130788102 7,600 0 0.00 400 -5.21 0.0475
2022-08-12 2022-06-30 13F CALIFORNIA WTR SVC GROUP COM COM 130788102 7,600 0 0.00 422 -6.43 0.0489
2022-05-13 2022-03-31 13F CALIFORNIA WTR SVC GROUP COM COM 130788102 7,600 0 0.00 451 -17.40 0.0429
2022-02-11 2021-12-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 7,600 0 0.00 546 21.88 0.0467
2021-11-12 2021-09-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 7,600 0 0.00 448 6.16 0.0388
2021-08-13 2021-06-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 7,600 0 0.00 422 -1.40 0.0385
2021-05-13 2021-03-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 7,600 0 0.00 428 4.14 0.0373
2021-02-08 2020-12-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 7,600 0 0.00 411 24.55 0.0496
2020-11-12 2020-09-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 7,600 0 0.00 330 -9.09 0.0446
2020-08-13 2020-06-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 7,600 0 0.00 363 -4.97 0.0534
2020-05-12 2020-03-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 7,600 0 0.00 382 -2.55 0.0795
2020-02-10 2019-12-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 7,600 0 0.00 392 -2.49 0.0572
2019-11-07 2019-09-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 7,600 0 0.00 402 4.42 0.0635
2019-07-29 2019-06-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 7,600 0 0.00 385 -6.78 0.0619
2019-05-02 2019-03-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 7,600 0 0.00 413 14.09 0.0708
2019-01-31 2018-12-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 7,600 0 0.00 362 11.04 0.0693
2018-10-24 2018-09-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 7,600 0 0.00 326 10.14 0.0527
2018-08-06 2018-06-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 7,600 0 0.00 296 4.59 0.0527
2018-05-08 2018-03-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 7,600 0 0.00 283 -17.97 0.0528
2018-02-05 2017-12-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 7,600 0 0.00 345 18.97 0.0623
2017-11-02 2017-09-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 7,600 0 0.00 290 3.57 0.0544
2017-07-20 2017-06-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 7,600 0 0.00 280 2.94 0.0536
2017-05-08 2017-03-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 7,600 0 0.00 272 5.43 0.0502
2017-01-27 2016-12-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 7,600 0 0.00 258 5.74 0.0489
2016-11-14 2016-09-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 7,600 0 0.00 244 -7.92 0.0407
2016-08-04 2016-06-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 7,600 0 0.00 265 30.54 0.0430
2016-04-22 2016-03-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 7,600 0 0.00 203 14.69 0.0333
2016-02-02 2015-12-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 7,600 0 0.00 177 5.36 0.0276
2015-11-04 2015-09-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 7,600 0 0.00 168 -3.45 0.0226
2015-08-06 2015-06-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 7,600 0 0.00 174 -6.45 0.0210
2015-05-07 2015-03-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 7,600 7,600 0.00 186 0.0227
2015-02-05 2014-12-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 0 -7,600 -100.00 0 -100.00
2014-11-06 2014-09-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 7,600 0 0.00 171 -7.07 0.0233
2014-08-05 2014-06-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 7,600 0 0.00 184 1.10 0.0250
2014-04-28 2014-03-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 7,600 0 0.00 182 4.00 0.0262
2014-02-04 2013-12-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 7,600 0 0.00 175 13.64 0.0266
2013-10-30 2013-09-30 13F CALIFORNIA WTR SVC GROUP COMMON 130788102 7,600 0 0.00 154 4.05 0.0248
2013-08-06 2013-06-30 13F CALIFORNIA WTR SVC GROUP COMMON 130788102 7,600 7,600 148 0.0240
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.