California Water Service Group (CWT) Institutional Ownership & Insider Trading

344 institutions reported holding California Water Service Group shares in 13F filings for the quarter ended 2026-06-30, according to EquiReason's reading of their SEC filings. 9 insider trades on Form 4 since 2025-10-01.

Source: SEC EDGAR filings · figures as of 2026-06-30 · read by EquiReason

CWTCalifornia Water Service GroupFollow CWT — free

Utilities - Regulated Water · Utilities

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Market cap: 3.0B
P/E TTM: 21.6
Dividend yield: 2.6%
52-week: —
Next earnings: 29 Oct, in 5 days

Institutions · all 13F filers

quarter to 30 Jun 2026 · filers in both quarters

344 institutions held 89.5% of the shares. Across filers that reported both quarters, shares held changed +7.8%.

Largest moves, shares (millions)

Institutional flow by quarter

net shares added or trimmed, millions · filers in both quarters

Quarter	Holders	Shares held, M	Change	Increased	New	Decreased	Closed
Jun 26	344	55	+7.8%	121	31	87	31
Mar 26	335	51	+0.9%	120	29	79	26
Dec 25	326	51	+1.1%	80	20	118	29
Sep 25	329	50	+1.5%	102	23	92	26
Jun 25	331	50	-0.4%	100	31	102	21
Mar 25	324	50	+2.8%	109	33	93	31
Dec 24	316	49	+0.1%	108	22	88	27
Sep 24	315	48	-1.6%	88	44	91	25

California Water Service Group — questions

Who owns California Water Service Group stock?: 344 institutions reported California Water Service Group shares in 13F filings for the quarter ended 2026-06-30. The largest: BlackRock, Inc. (17.4%), VANGUARD PORTFOLIO MANAGEMENT LLC (7.1%), T. Rowe Price Investment Management, Inc. (5.7%).
Are California Water Service Group insiders buying or selling?: 9 insider trades on Form 4 since 2025-10-01; the full list, with dates, people and plan status, is on this page.

Every figure on this page comes from California Water Service Group's own SEC filings — see them on SEC EDGAR. Price data is licensed and shown only inside the product.

How these figures are read: methodology · EquiReason.

Important information. Figures on this page are taken from filings submitted to the U.S. Securities and Exchange Commission (SEC) and processed automatically by EquiReason. They may contain errors, omissions or delays, and EquiReason makes no representation or warranty as to their accuracy, completeness or timeliness. Always verify figures against the original filing on SEC EDGAR before relying on them.

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