California Water Service Group

Historical 13F Holders

Symbol
CWT
CUSIP
130788102
All holders as of
Q2 2026
Type
Equity
Class
COM
Reported Value, Excluding Options
Total Filings

13D/G Filers

Investors who own more than 5% of a class must file a Schedule 13D or 13G. Each filer's latest filing for 130788102 since 12/18/2024, largest first.

Filer % of Class Filed
BlackRock, Inc. 13G/A 17.1% 7/17/2025
Event 6/30/2025
Vanguard Portfolio Management LLC 13G 7.2% 4/29/2026
Event 3/31/2026
Amundi 13G/A
5.8% 7/22/2026
Event 6/30/2026
Vanguard Capital Management LLC 13G 5.3% 4/29/2026
Event 3/31/2026
T. Rowe Price Investment Management, Inc. 13G/A 5.0% 2/14/2025
Event 12/31/2024
Under 5%, checked the "5 percent or less" box, or amended by a later filing (1)
Vanguard Group Inc 13G/A 0% 3/26/2026
Event 3/13/2026

13F Holders by Quarter

Period Filings Shares, Excl. Options Value, Excl. Options
2026 Q3 9 16.5 k $760 k
2026 Q2 349 58.5 M $2.77 B
2026 Q1 340 51.3 M $2.32 B
2025 Q4 336 50.8 M $2.20 B
2025 Q3 344 50.4 M $2.31 B
2025 Q2 342 50.5 M $2.30 B
2025 Q1 336 50.5 M $2.45 B
2024 Q4 331 49.2 M $2.23 B
2024 Q3 330 48.6 M $2.63 B
2024 Q2 306 49.2 M $2.38 B
2024 Q1 284 50.5 M $2.35 B
2023 Q4 294 48.8 M $2.53 B
2023 Q3 283 47.8 M $2.26 B
2023 Q2 296 47.1 M $2.44 B
2023 Q1 308 44.9 M $2.62 B
2022 Q4 305 50.4 M $3.06 B
2022 Q3 289 44.0 M $2.32 B
2022 Q2 290 43.9 M $2.44 B
2022 Q1 318 42.3 M $2.51 B
2021 Q4 313 41.3 M $2.97 B
2021 Q3 273 40.8 M $2.41 B
2021 Q2 258 40.1 M $2.23 B
2021 Q1 263 39.1 M $2.20 B
2020 Q4 263 40.1 M $2.35 B
2020 Q3 256 37.6 M $1.64 B
2020 Q2 271 36.7 M $1.75 B
2020 Q1 263 36.2 M $1.82 B
2019 Q4 272 37.9 M $1.95 B
2019 Q3 274 37.7 M $2.00 B
2019 Q2 266 36.6 M $1.85 B
2019 Q1 264 36.1 M $1.96 B
2018 Q4 244 35.8 M $1.71 B
2018 Q3 224 35.4 M $1.52 B
2018 Q2 218 34.9 M $1.36 B
2018 Q1 233 34.4 M $1.28 B
2017 Q4 227 33.8 M $1.53 B
2017 Q3 195 33.4 M $1.27 B
2017 Q2 196 33.0 M $1.19 B
2017 Q1 202 33.1 M $1.19 B
2016 Q4 209 33.7 M $1.14 B
2016 Q3 191 33.2 M $1.07 B
2016 Q2 190 35.4 M $1.22 B
2016 Q1 191 34.8 M $925 M
2015 Q4 175 31.8 M $741 M
2015 Q3 162 29.1 M $644 M
2015 Q2 167 29.9 M $681 M
2015 Q1 161 29.5 M $722 M
2014 Q4 164 32.1 M $794 M
2014 Q3 143 29.6 M $667 M
2014 Q2 142 31.0 M $755 M
2014 Q1 146 29.3 M $706 M