SJW GROUP (SJW) Institutional Shareholders
SJW GROUP (SJW) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $2.60B in SJW holdings during the latest filing period.
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 55% 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
305
Total Reported Value
$2.60B
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 | — | — | — | |
| Kbc Group Nv | 0.08% | 610,164 | $37,080,000 | — | — | — | |
| 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 | — | — | — | |
| 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 | — | — | — | |
| Ausbil Investment Management Ltd | 5.58% | 203,028 | $12,331,921 | — | — | — | |
| Principal Financial Group Inc | 0.01% | 189,995 | $11,545,996 | — | — | — | |
| Bw Gestao De Investimentos Ltda. | 0.27% | 185,806 | $11,291,431 | — | — | — | |
| Hotchkis & Wiley Capital Management Llc | 0.03% | 183,553 | $11,154,516 | — | — | — | |
| Assenagon Asset Management S.A. | 0.01% | 179,910 | $10,933,131 | — | — | — | |
| Bank Of America Corp | 0.00% | 176,992 | $10,755,803 | — | — | — | |
| Duff & Phelps Investment Management Co | 0.10% | 175,972 | $10,693,818 | — | — | — | |
| Squarepoint Ops Llc | 0.02% | 170,129 | $10,338,739 | — | — | — | |
| Ubs Group Ag | 0.00% | 168,194 | $10,221,150 | — | — | — | |
| Gabelli Funds Llc | 0.06% | 162,779 | $9,892,080 | — | — | — | |
| Nuance Investments, Llc | 1.60% | 154,446 | $9,385,686 | — | — | — | |
| 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 | — | — | — | |
| Proshare Advisors Llc | 0.01% | 127,660 | $7,757,897 | — | — | — |
Frequently asked questions about SJW
Who owns the most SJW stock?
The largest holders of SJW are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for SJW GROUP (SJW).
Is SJW widely held by superinvestors?
Many widely followed stocks like SJW appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly SJW is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.