CWT Institutional Ownership
Who owns California Water Service Group and what the big funds did with it last quarter, from every SEC 13F filing. 345 funds reported holding CWT at Jun 30, 2026, together owning 88.0% of the company.
- ▲182 buying vs 140 selling
- ▲Held by funds +6.5 pts
- ▲Funds holding +6
- ▲Superinvestors: 3 added, 1 cut
- ●Put/call not meaningful
What the filings show, not a forecast. Positions can be up to 45 days old and leave out short sales.
Funds holding and ownership
8 quartersQuarter over quarter
all 13F filers| Q2 2026 | This quarter | Q1 2026 | Change |
|---|---|---|---|
| Funds holding | 345 | 339 | +1.8% |
| In funds' top 10 | 2 | 1 | +100.0% |
| 13F shares | 55.4M | 51.3M | +8.0% |
| Held by funds | 88.0% | 81.5% | +6.5 pts |
| New positions | 44 | 40 | +10.0% |
| Increased | 138 | 136 | +1.5% |
| Reduced | 98 | 89 | +10.1% |
| Sold out | 42 | 33 | +27.3% |
| Calls (shares) | 0 | 0 | – |
| Puts (shares) | 0 | 0 | – |
| Put/call ratio | – | – | – |
Buyers vs sellers
adding or new vs cutting or sold outSuperinvestors in CWT
All superinvestors →
Who owns CWT
share of fund held shares- Index and passive funds52.5%
- Active managers and hedge funds38.2%
- Banks and brokers7.6%
- Pensions, insurers and other1.7%
The top 10 holders own 61.8% of all CWT shares that funds reported. Groups are our own grouping of filers by name.
Filed so far for Q3 2026
82 funds changed their position- Mackenzie Financial CorpSold out−49K sh
- Assenagon Asset Management S.A.Trimmed−49K sh
- ProShare Advisors LLCAdded+45K sh
- Y-Intercept (Hong Kong) LtdNew+31K sh
- Wedge Capital Management L L P/ncAdded+12K sh
🔒 Free account: see all 20.
Top holders
Q2 2026| # | Fund | Of company | Shares | Value | Change |
|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 17.11% | 10.8M | $523M | +447K |
| 2 | Vanguard Portfolio Management LLC | 6.97% | 4.4M | $213M | +90K |
| 3 | T. Rowe Price Investment Management, Inc. | 5.59% | 3.5M | $171M | +99K |
| 4 | Amundi | 5.55% | 3.5M | $170M | +16K |
| 5 | State Street Corp | 5.20% | 3.3M | $159M | +164K |
| 6 | Vanguard Capital Management LLC | 4.28% | 2.7M | $131M | +25K |
| 7 | ATLAS Infrastructure Partners (UK) Ltd. | 3.16% | 2M | $96.6M | +2M |
| 8 | Geode Capital Management, LLC | 2.47% | 1.6M | $75.7M | +80K |
| 9 | First Trust Advisors LP | 2.07% | 1.3M | $63.2M | −54K |
| 10 | Fmr LLC | 2.04% | 1.3M | $62.3M | −109K |
- ATLAS Infrastructure Partners (UK) Ltd.+2M sh+$96.6M
- ANTIPODES PARTNERS Ltd+753K sh+$36.7M
- Nomura Asset Management International Inc.+747K sh+$36.4M
- AQR Capital Management LLC+512K sh+$24.9M
- BlackRock, Inc.+447K sh+$21.7M
- State Street Corp+164K sh+$8M
- Citadel Advisors LLC+162K sh+$7.9M
- Panagora Asset Management Inc+153K sh+$7.4M
- Cbre Investment Management Listed Real Assets LLC−648K sh−$29.4M
- Nuance Investments, LLC−508K sh−$24.7M
- Marshall Wace, LLP−257K sh−$11.6M
- Qube Research & Technologies Ltd−187K sh−$8.5M
- Morgan Stanley−171K sh−$8.3M
- Nuveen, LLC−151K sh−$7.3M
- Jane Street Group, LLC−123K sh−$5.6M
- Fmr LLC−109K sh−$5.3M
CWT institutional ownership FAQ
Who owns the most CWT stock?
In Q2 2026 13F filings the largest holder of CWT was BlackRock, Inc., followed by Vanguard Portfolio Management LLC and T. Rowe Price Investment Management, Inc.. Index fund managers are usually the biggest holders of large companies.
What percentage of CWT is owned by institutions?
Funds that file 13F reports held 88.0% of CWT's shares at Jun 30, 2026, compared with 81.5% a quarter earlier. That counts every manager with more than $100 million in US stocks.
Are hedge funds buying CWT?
In Q2 2026, 182 funds bought CWT (44 of them new positions) and 140 sold (42 sold out completely). Among well known investors, 3 added and 1 cut. Our fund sentiment for CWT is strongly bullish.
What is CWT's institutional put/call ratio?
Too few option positions were reported for a meaningful ratio.
How current is this CWT ownership data?
13F filings show holdings at the end of each quarter and are due within 45 days, so positions can be up to six weeks old when they appear. We add each new filing within minutes, and the "filed so far" list shows funds that have already reported the next quarter.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Fund sentiment summarises what 13F filings show and is not a forecast. Holdings come from SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.