SJW Institutional Ownership & Shareholders
SJW GROUP (SJW) is currently held by 330 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $2.58B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of SJW tracked by InsiderSet, reporting ownership valued at approximately $431.86M in its June 30, 2026 SEC Form 13F filing.
The top 10 institutional shareholders tracked on this page collectively account for approximately 56% of the total disclosed SJW value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Atlas Infrastructure Partners (Uk) Ltd., Wellington Management Group Llp, and several other long-term asset managers with concentrated positions in SJW GROUP (SJW).
This page ranks the largest institutional SJW shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
330
Total Reported Value
$2.58B
Largest Holder
Blackrock, Inc.
Largest Position
$431.86M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
48
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.01% | 7,106,413 | $431,856,704 | — | — | — | |
| Atlas Infrastructure Partners (Uk) Ltd. | 8.50% | 4,612,035 | $280,273,367 | — | — | — | |
| Wellington Management Group Llp | 0.02% | 1,995,839 | $121,287,136 | — | — | — | |
| Antipodes Partners Ltd | 1.96% | 1,759,602 | $106,931,014 | — | — | — | |
| Vanguard Capital Management Llc | 0.00% | 1,574,377 | $95,674,890 | — | — | — | |
| State Street Corp | 0.00% | 1,554,683 | $94,478,086 | — | — | — | |
| Cerity Partners Llc | 0.10% | 1,307,227 | $79,440,159 | — | — | — | |
| Vanguard Portfolio Management Llc | 0.00% | 1,263,898 | $76,807,081 | — | — | — | |
| Soros Fund Management Llc | 1.00% | 1,254,368 | $76,227,943 | — | — | — | |
| Victory Capital Management Inc | 0.04% | 1,168,734 | $71,023,965 | — | — | — | |
| Geode Capital Management, Llc | 0.00% | 992,465 | $60,323,655 | — | — | — | |
| Yaupon Capital Management Lp | 1.72% | 851,846 | $51,766,681 | — | — | — | |
| Two Sigma Investments, Lp | 0.04% | 806,493 | $49,010,580 | — | — | — | |
| Invesco Ltd. | 0.00% | 776,317 | $47,176,786 | — | — | — | |
| Dimensional Fund Advisors Lp | 0.01% | 714,601 | $43,426,868 | — | — | — | |
| Morgan Stanley | 0.00% | 589,652 | $35,833,239 | — | — | — | |
| Legal & General Group Plc | 0.01% | 571,546 | $34,791,587 | — | — | — | |
| Resolution Capital Ltd | 0.58% | 515,795 | $31,344,862 | — | — | — | |
| Zimmer Partners, Lp | 0.74% | 513,500 | $31,205,395 | — | — | — | |
| Barrow Hanley Mewhinney & Strauss Llc | 0.09% | 504,368 | $30,650,443 | — | — | — | |
| Charles Schwab Investment Management Inc | 0.00% | 503,037 | $30,569,558 | — | — | — | |
| Schroder Investment Management Group | 0.02% | 494,524 | $30,170,909 | — | — | — | |
| First Trust Advisors Lp | 0.02% | 490,833 | $29,827,921 | — | — | — | |
| Goldman Sachs Group Inc | 0.00% | 436,328 | $26,515,639 | — | — | — | |
| Northern Trust Corp | 0.00% | 415,397 | $25,243,675 | — | — | — | |
| Nuveen, Llc | 0.00% | 337,662 | $20,519,669 | — | — | — | |
| Raymond James Financial Inc | 0.01% | 315,073 | $19,146,979 | — | — | — | |
| Cohen & Steers, Inc. | 0.03% | 310,870 | $18,892,000 | — | — | — | |
| Principal Financial Group Inc | 0.01% | 303,183 | $18,685,168 | — | — | — | |
| Vanguard Fiduciary Trust Co | 0.00% | 253,621 | $15,412,548 | — | — | — | |
| Mirova | 0.55% | 244,550 | $14,861,304 | — | — | — | |
| Aqr Capital Management Llc | 0.00% | 215,916 | $13,121,239 | — | — | — | |
| Bank Of New York Mellon Corp | 0.00% | 206,376 | $12,541,445 | — | — | — | |
| Bw Gestao De Investimentos Ltda. | 0.27% | 185,806 | $11,291,431 | — | — | — | |
| Hotchkis & Wiley Capital Management Llc | 0.03% | 183,553 | $11,154,516 | — | — | — | |
| Bank Of America Corp | 0.00% | 176,992 | $10,755,803 | — | — | — | |
| Duff & Phelps Investment Management Co | 0.10% | 175,972 | $10,693,818 | — | — | — | |
| Ausbil Investment Management Ltd | 5.27% | 169,944 | $10,473,649 | — | — | — | |
| Squarepoint Ops Llc | 0.02% | 170,129 | $10,338,739 | — | — | — | |
| Ubs Group Ag | 0.00% | 168,194 | $10,221,150 | — | — | — | |
| Proshare Advisors Llc | 0.01% | 162,836 | $10,035,583 | — | — | — | |
| Gabelli Funds Llc | 0.06% | 162,779 | $9,892,080 | — | — | — | |
| Nuance Investments, Llc | 1.60% | 154,446 | $9,385,686 | — | — | — | |
| Assenagon Asset Management S.A. | 0.01% | 136,811 | $8,431,662 | — | — | — | |
| State Of Wisconsin Investment Board | 0.02% | 135,656 | $8,243,815 | — | — | — | |
| D. E. Shaw & Co., Inc. | 0.01% | 135,525 | $8,235,854 | — | — | — | |
| Public Sector Pension Investment Board | 0.02% | 135,149 | $8,213,005 | — | — | — | |
| Rokos Capital Management Llp | 0.10% | 135,116 | $8,209,648 | — | — | — | |
| Vennlight Capital Management, Lp | 5.25% | 128,839 | $7,829,546 | — | — | — | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.00% | 131,696 | $7,726,604 | — | — | — |
Frequently asked questions about SJW
Who are the largest institutional holders of SJW?
The largest institutional holders of SJW reported in the latest SEC Form 13F filings include Blackrock, Inc., Atlas Infrastructure Partners (Uk) Ltd., Wellington Management Group Llp, Antipodes Partners Ltd, and Vanguard Capital Management Llc. InsiderSet ranks institutional holders by their latest reported SJW position.
What is SJW institutional ownership?
This page tracks SJW positions reported by institutional investment managers through SEC Form 13F. SJW GROUP (SJW) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own SJW?
InsiderSet currently tracks 330 institutional managers reporting SJW holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of SJW shareholders.
How much SJW stock do institutions own?
Institutional investment managers disclosed approximately $2.58B in SJW holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was SJW institutional ownership last updated?
The latest SJW institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional SJW holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its SJW position after the reporting date.
Are institutions buying or selling SJW?
Institutional buying and selling can be analyzed by comparing SJW positions across consecutive 13F reporting periods. InsiderSet's SJW Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View SJW ownership changes.
How has SJW institutional ownership changed over time?
InsiderSet tracks SJW institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.