California Water Service (CWT) Ownership & Trading Activity
Institutional holders, insider transactions, and congressional trades for CWT. 13F holdings as of 2026-06-30.
In 13F filings for the quarter ended June 30, 2026, 333 institutions reported holding CWT, with 51.8 million shares worth $2.5 billion in aggregate.
Top Institutional Holders
| Institution | Shares | Value | Change |
|---|---|---|---|
| BlackRock | 10,755,498 | $523M | INCREASED |
| Vanguard | 7,599,616 | $370M | INCREASED |
| T. Rowe Price | 3,615,023 | $176M | INCREASED |
| State Street | 3,266,850 | $159M | INCREASED |
| Atlas Infrastructure Partners (UK) Ltd | 1,984,605 | $97M | NEW |
Recent Insider Trades
| Insider | Type | Shares | Value | Date |
|---|---|---|---|---|
| Carol M Pottenger (Director) | SELL | 2,657 | $133K | 2026-11-04 |
| Gregory Dale Shimansky (VP, Rates & Reg Affairs) | SELL | 978 | $49K | 2026-11-04 |
| Sophie Marwieh James (VP Water Qual) | TAX-W | 50 | $3K | 2026-09-05 |
| Kenneth G Jenkins (VP Water Res Plan & Sustain) | TAX-W | 38 | $2K | 2026-09-05 |
| Shawn C Bunting (SVP, Chief Legal Officer & BD) | TAX-W | 69 | $3K | 2026-09-05 |
Full institutional holdings, insider history, and congressional trades for California Water Service on SentiSense.