California Water Service Group
US ˙ NYSE ˙ US1307881029

SecurityCWT / California Water Service Group
InstitutionAmundi
Latest Disclosed Ownership3,470,997 shares
Ownership 5.82%
Amundi ownership in CWT / California Water Service Group

2026-04-10 - Amundi has filed an SCHEDULE 13G form with the Securities and Exchange Commission (SEC) disclosing ownership of 3,470,997 shares of California Water Service Group (US:CWT). This represents 5.82 percent ownership of the company.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date
Effective
Date
Form Prev
Shares
Latest
Shares
ΔShares
(Percent)
Ownership
(Percent)
ΔOwnership
(Percent)
2026-04-10 2026-04-10 13G 3,470,997 5.82

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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)
2026-05-15 2026-03-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 3,470,997 732,004 26.73 157,421 32.69 0.0181
2026-02-17 2025-12-31 13F CALIFORNIA WTR SVC GROUP COM 130788102 2,738,993 462,394 20.31 118,634 13.72 0.0322
2025-11-14 2025-09-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 2,276,599 369,430 19.37 104,318 14.15 0.0335
2025-08-13 2025-06-30 13F CALIFORNIA WTR SVC GROUP COM 130788102 1,907,169 16,346 0.86 91,386 -0.85 0.0315
2025-05-15 2025-03-31 13F CALIFORNIA WATER SERVICE GROUP COM 130788102 1,890,823 -18,216 -0.95 92,173 7.82 0.0336
2025-02-07 2024-12-31 13F California Water Service Group COM 130788102 1,909,039 -262,525 -12.09 85,485 -26.76 0.0297
2024-11-13 2024-09-30 13F CALIFORNIA WATER SERVICE GROUP COM 130788102 2,171,564 312,937 16.84 116,721 29.90 0.0430
2024-08-14 2024-06-30 13F CALIFORNIA WATER SERVICE GROUP COM 130788102 1,858,627 -131,401 -6.60 89,857 -2.08 0.0344
2024-05-15 2024-03-31 13F CALIFORNIA WATER SERVICE GROUP COM 130788102 1,990,028 340,807 20.66 91,763 8.64 0.0394
2024-02-14 2023-12-31 13F CALIFORNIA WATER SERVICE GROUP COM 130788102 1,649,221 41,463 2.58 84,463 10.70 0.0380
2023-11-14 2023-09-30 13F CALIFORNIA WATER SERVICE GROUP COM 130788102 1,607,758 249,085 18.33 76,299 8.63 0.0375
2023-08-14 2023-06-30 13F CALIFORNIA WATER SERVICE GROUP COM 130788102 1,358,673 221,713 19.50 70,236 5.26 0.0355
2023-05-15 2023-03-31 13F CALIFORNIA WATER SERVICE GROUP COM 130788102 1,136,960 1,260 0.11 66,728 -3.91 0.0360
2023-02-14 2022-12-31 13F CALIFORNIA WATER SERVICE GROUP COM 130788102 1,135,700 292,111 34.63 69,439 55.90 0.0381
2022-11-14 2022-09-30 13F California Water Service Group COM 130788102 843,589 67,273 8.67 44,541 3.27 0.0264
2022-09-02 2022-06-30 13F/A-1 CALIFORNIA WATER SERVICE GROUP COM 130788102 776,316 163,725 26.73 43,132 18.85 0.0346
2022-08-15 2022-06-30 13F CALIFORNIA WATER SERVICE GROUP COM 130788102 776,316 163,725 43,132 0.0023
2022-05-16 2022-03-31 13F California Water Service Group COM 130788102 612,591 135,912 28.51 36,290 6.00 0.0246
2022-02-14 2021-12-31 13F California Water Service Group COM 130788902 476,679 476,679 34,235 0.0217
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.