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 March 31, 2026. The institutional investors covered on this page collectively reported approximately $2.50B 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 $376.53M in its March 31, 2026 SEC Form 13F filing.
The top 10 institutional shareholders tracked on this page collectively account for approximately 54% of the total disclosed SJW value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Atlas Infrastructure Partners (Uk) Ltd., Antipodes Partners Ltd, 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
$2.50B
Largest Holder
Blackrock, Inc.
Largest Position
$376.53M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
76
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% | 6,417,733 | $376,528,380 | — | — | — | |
| Atlas Infrastructure Partners (Uk) Ltd. | 9.36% | 4,532,084 | $265,897,368 | — | — | — | |
| Antipodes Partners Ltd | 2.54% | 2,249,029 | $131,950,531 | — | — | — | |
| Vanguard Capital Management Llc | 0.00% | 1,687,253 | $98,991,134 | — | — | — | |
| Wellington Management Group Llp | 0.02% | 1,613,571 | $94,668,210 | — | — | — | |
| State Street Corp | 0.00% | 1,431,151 | $83,965,629 | — | — | — | |
| Cerity Partners Llc | 0.11% | 1,309,679 | $76,838,858 | — | — | — | |
| Soros Fund Management Llc | 0.99% | 1,228,747 | $72,090,586 | — | — | — | |
| Vanguard Portfolio Management Llc | 0.00% | 1,169,078 | $68,589,806 | — | — | — | |
| Amundi | 0.02% | 1,156,952 | $67,883,115 | — | — | — | |
| Zimmer Partners, Lp | 1.44% | 1,001,000 | $58,728,670 | — | — | — | |
| Victory Capital Management Inc | 0.03% | 911,895 | $53,500,879 | — | — | — | |
| Geode Capital Management, Llc | 0.00% | 897,076 | $52,642,490 | — | — | — | |
| Yaupon Capital Management Lp | 2.59% | 895,435 | $52,535,171 | — | — | — | |
| Morgan Stanley | 0.00% | 781,201 | $45,833,134 | — | — | — | |
| Dimensional Fund Advisors Lp | 0.01% | 705,345 | $41,383,188 | — | — | — | |
| Invesco Ltd. | 0.01% | 700,595 | $41,103,909 | — | — | — | |
| Schroder Investment Management Group | 0.03% | 586,940 | $34,611,851 | — | — | — | |
| Legal & General Group Plc | 0.01% | 543,482 | $31,932,634 | — | — | — | |
| First Trust Advisors Lp | 0.02% | 531,987 | $31,211,676 | — | — | — | |
| Resolution Capital Ltd | 0.60% | 482,460 | $28,305,928 | — | — | — | |
| Charles Schwab Investment Management Inc | 0.00% | 482,170 | $28,288,914 | — | — | — | |
| Citadel Advisors Llc | 0.02% | 416,111 | $24,413,233 | — | — | — | |
| Barrow Hanley Mewhinney & Strauss Llc | 0.08% | 409,650 | $24,034,165 | — | — | — | |
| Nuance Investments, Llc | 3.20% | 391,646 | $22,977,866 | — | — | — | |
| Northern Trust Corp | 0.00% | 373,310 | $21,902,098 | — | — | — | |
| Point72 Asset Management, L.P. | 0.04% | 371,129 | $21,774,138 | — | — | — | |
| Millennium Management Llc | 0.02% | 343,789 | $20,170,101 | — | — | — | |
| Goldman Sachs Group Inc | 0.00% | 342,043 | $20,067,663 | — | — | — | |
| Bank Of America Corp | 0.00% | 264,887 | $15,540,921 | — | — | — | |
| Two Sigma Investments, Lp | 0.01% | 250,332 | $14,686,978 | — | — | — | |
| Vanguard Fiduciary Trust Co | 0.00% | 240,956 | $14,136,889 | — | — | — | |
| Storebrand Asset Management As | 0.00% | 199,605 | $14,071,697 | — | — | — | |
| Nuveen, Llc | 0.00% | 232,092 | $13,616,838 | — | — | — | |
| Bw Gestao De Investimentos Ltda. | 0.58% | 220,941 | $12,962,608 | — | — | — | |
| Ausbil Investment Management Ltd | 5.58% | 203,028 | $12,331,921 | — | — | — | |
| Mirova | 0.47% | 195,246 | $11,455,083 | — | — | — | |
| Bank Of New York Mellon Corp | 0.00% | 190,189 | $11,158,367 | — | — | — | |
| Assenagon Asset Management S.A. | 0.01% | 179,910 | $10,933,131 | — | — | — | |
| Hotchkis & Wiley Capital Management Llc | 0.03% | 182,853 | $10,727,986 | — | — | — | |
| Principal Financial Group Inc | 0.01% | 181,412 | $10,643,441 | — | — | — | |
| Aqr Capital Management Llc | 0.00% | 171,652 | $10,070,806 | — | — | — | |
| Vennlight Capital Management, Lp | 9.62% | 162,217 | $9,517,271 | — | — | — | |
| Renaissance Technologies LLC | Jim Simons | 0.01% | 157,900 | $9,263,993 | — | — | — |
| Ubs Group Ag | 0.00% | 149,943 | $8,797,155 | — | — | — | |
| Gabelli Funds Llc | 0.06% | 149,647 | $8,779,789 | — | — | — | |
| Rokos Capital Management Llp | 0.14% | 135,116 | $7,927,931 | — | — | — | |
| Public Sector Pension Investment Board | 0.02% | 133,676 | $7,842,771 | — | — | — | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.00% | 131,696 | $7,726,604 | — | — | — | |
| River Road Asset Management, Llc | 0.09% | 126,659 | $7,697,067 | — | — | — |
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.