California Water Service Group
DE ˙ DB ˙ US1307881029
37,40 € ↓ -1,00 (-2,60%)
2026-06-02
DEL PRIS
SecurityDE:WT5 / California Water Service Group
InstitutionInvesco Ltd.
Latest Disclosed Ownership1,002,232 shares
Latest Disclosed Value $ 45,441,200
Invesco Ltd. reports 5.03% increase in ownership of WT5 / California Water Service Group

On May 12, 2026 - Invesco Ltd. filed a 13F-HR form disclosing ownership of 1,002,232 shares of California Water Service Group (DE:WT5) valued at $40,089,280 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 19, 2026 disclosing 954,234 shares of California Water Service Group. This represents a change in shares of 5.03% during the quarter. The current value of the position is $37,483,477 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)
2026-05-12 2026-03-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 1,002,232 47,998 5.03 45,441 9.90 0.0009
2026-02-19 2025-12-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 954,234 57,170 6.37 41,347 0.44 0.0063
2025-11-13 2025-09-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 897,064 -23,651 -2.57 41,166 -1.69 0.0065
2025-08-13 2025-06-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 920,715 -64,426 -6.54 41,874 -12.29 0.0071
2025-05-12 2025-03-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 985,141 56,993 6.14 47,740 13.47 0.0090
2025-02-13 2024-12-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 928,148 49,107 5.59 42,073 -11.73 0.0078
2024-11-12 2024-09-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 879,041 -112,347 -11.33 47,662 -0.85 0.0092
2024-08-13 2024-06-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 991,388 548 0.06 48,072 4.38 0.0102
2024-05-14 2024-03-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 990,840 116,366 13.31 46,054 1.53 0.0099
2024-02-13 2023-12-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 874,474 -221,840 -20.24 45,359 -12.55 0.0108
2023-11-13 2023-09-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 1,096,314 240,944 28.17 51,867 17.44 0.0140
2023-08-11 2023-06-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 855,370 -156,695 -15.48 44,163 -25.02 0.0116
2023-05-12 2023-03-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 1,012,065 -4,461 -0.44 58,902 -4.45 0.0164
2023-02-13 2022-12-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 1,016,526 -261,771 -20.48 61,642 -8.48 0.0181
2022-11-14 2022-09-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 1,278,297 -61,911 -4.62 67,353 -9.53 0.0217
2022-08-15 2022-06-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 1,340,208 -71,375 -5.06 74,449 -11.03 0.0226
2022-05-16 2022-03-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 1,411,583 -2,687 -0.19 83,679 -17.66 0.0213
2022-02-14 2021-12-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 1,414,270 81,975 6.15 101,629 29.44 0.0245
2021-11-15 2021-09-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 1,332,295 42,582 3.30 78,512 9.61 0.0199
2021-08-17 2021-06-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 1,289,713 160,539 14.22 71,630 12.60 0.0176
2021-05-17 2021-03-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 1,129,174 -54,568 -4.61 63,617 -0.53 0.0170
2021-02-16 2020-12-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 1,183,742 46,084 4.05 63,959 29.39 0.0186
2020-11-16 2020-09-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 1,137,658 -6,293 -0.55 49,432 -9.41 0.0167
2020-08-14 2020-06-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 1,143,951 -85,488 -6.95 54,567 -11.80 0.0195
2020-05-15 2020-03-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 1,229,439 -261,006 -17.51 61,866 -19.49 0.0260
2020-02-14 2019-12-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 1,490,445 43,123 2.98 76,847 0.31 0.0239
2019-11-14 2019-09-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 1,447,322 82,414 6.04 76,608 10.86 0.0200
2019-08-14 2019-06-30 13F/A-1 CALIFORNIA WTR SVC GROUP COM 130788102 1,364,908 -10,382 -0.75 69,105 -7.43 0.0178
2019-08-14 2019-06-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 1,364,908 -1,123,850 69,105
2019-05-15 2019-03-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 1,375,290 181,834 15.24 74,651 31.24 0.0252
2019-02-14 2018-12-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 1,193,456 342,146 40.19 56,880 55.75 0.0218
2018-11-14 2018-09-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 851,310 99,805 13.28 36,521 24.77 0.0115
2018-08-14 2018-06-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 751,505 -77,650 -9.36 29,271 -5.23 0.0097
2018-05-15 2018-03-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 829,155 293,553 54.81 30,886 27.16 0.0115
2018-02-14 2017-12-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 535,602 192,213 55.98 24,290 85.42 0.0088
2017-11-14 2017-09-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 343,389 -41,221 -10.72 13,100 -7.45 0.0048
2017-08-14 2017-06-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 384,610 -40,436 -9.51 14,154 -7.11 0.0044
2017-05-15 2017-03-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 425,046 -125,662 -22.82 15,238 -18.38 0.0050
2017-02-14 2016-12-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 550,708 -132,377 -19.38 18,669 -14.83 0.0063
2016-11-14 2016-09-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 683,085 -169,796 -19.91 21,920 -26.42 0.0075
2016-08-15 2016-06-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 852,881 134,259 18.68 29,791 55.15 0.0109
2016-05-16 2016-03-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 718,622 183,266 34.23 19,202 54.15 0.0078
2016-02-16 2015-12-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 535,356 -9,156 -1.68 12,457 3.43 0.0050
2015-11-16 2015-09-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 544,512 59,450 12.26 12,044 8.66 0.0051
2015-08-14 2015-06-30 13F CALIFORNIA WATER SERVICE GRP COMMON 130788102 485,062 -317,684 -39.57 11,084 -43.66 0.0043
2015-05-15 2015-03-31 13F CALIFORNIA WATER SERVICE GRP COMMON 130788102 802,746 149,733 22.93 19,675 22.43 0.0076
2015-02-13 2014-12-31 13F CALIFORNIA WATER SERVICE GRP COMMON 130788102 653,013 32,111 5.17 16,071 15.34 0.0062
2014-11-14 2014-09-30 13F CALIFORNIA WATER SERVICE GRP COMMON 130788102 620,902 -115,440 -15.68 13,933 -21.81 0.0056
2014-08-14 2014-06-30 13F CALIFORNIA WATER SERVICE GRP COMMON 130788102 736,342 -47,912 -6.11 17,819 -5.09 0.0070
2014-05-15 2014-03-31 13F CALIFORNIA WATER SERVICE GRP COMMON 130788102 784,254 -38,034 -4.63 18,775 -1.03 0.0076
2014-02-13 2013-12-31 13F CALIFORNIA WATER SERVICE GRP COMMON 130788102 822,288 -303,508 -26.96 18,970 -17.07 0.0075
2013-11-13 2013-09-30 13F CALIFORNIA WATER SERVICE GRP COMMON 130788102 1,125,796 -416,635 -27.01 22,876 -23.98 0.0099
2013-08-14 2013-06-30 13F CALIFORNIA WATER SERVICE GRP COMMON 130788102 1,542,431 1,542,431 30,093 0.0140
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.