MIDDLESEX WTR CO MSEX
COM · Common Stock · CUSIP 596680108
- SectorUtilities
- IndustryWater Supply
- HeadquartersIselin, NJ
- Founded1897
- Websitemiddlesexwater.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($38.5k this quarter). Holder counts are more reliable. Shares outstanding: 18.3m as of 2025-10-30, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $51.04. Options: 3 managers hold calls ($1.3m notional), 0 hold puts (—).
Trends to Q4 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 201 |
| Q4 2022 | 202 |
| Q1 2023 | 202 |
| Q2 2023 | 186 |
| Q3 2023 | 188 |
| Q4 2023 | 193 |
| Q1 2024 | 192 |
| Q2 2024 | 198 |
| Q3 2024 | 200 |
| Q4 2024 | 211 |
| Q1 2025 | 216 |
| Q2 2025 | 218 |
| Q3 2025 | 214 |
| Q4 2025 | 203 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q1 2024 | 110 | 67 |
| Q2 2024 | 92 | 87 |
| Q3 2024 | 72 | 98 |
| Q4 2024 | 90 | 76 |
| Q1 2025 | 89 | 97 |
| Q2 2025 | 117 | 78 |
| Q3 2025 | 112 | 85 |
| Q4 2025 | 82 | 109 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q1 2025 | $788.0k | $83.5k | 0.11 |
| Q2 2025 | $720.0k | $43.0k | 0.06 |
| Q3 2025 | $773.8k | $43.0k | 0.06 |
| Q4 2025 | $1.3m | $0 | 0.00 |
Biggest buyers
| MORGAN STANLEY | Added | +563.5k |
| NEUBERGER BERMAN GROUP LLC | Added | +512.1k |
| T. Rowe Price Investment Management, Inc. | Added | +416.6k |
| TSP Capital Management Group, LLC | New | +188.1k |
| BlackRock, Inc. | Added | +97.3k |
| Aventail Capital Group, LP | New | +45.5k |
| Zimmer Partners, LP | Added | +29.1k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Added | +27.9k |
| STATE STREET CORP | Added | +27.6k |
| VANGUARD GROUP INC | Added | +25.4k |
Biggest sellers
| TSP Capital Management Group, LLC | Sold out | -119.2k |
| GOLDMAN SACHS GROUP INC | Reduced | -86.2k |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | -85.8k |
| JANE STREET GROUP, LLC | Sold out | -78.2k |
| D. E. Shaw & Co., Inc. | Reduced | -56.5k |
| JPMORGAN CHASE & CO | Reduced | -42.5k |
| Zurcher Kantonalbank (Zurich Cantonalbank) | Reduced | -32.6k |
| AQR CAPITAL MANAGEMENT LLC | Reduced | -25.4k |
| ROYAL BANK OF CANADA | Reduced | -24.7k |
| UBS Group AG | Reduced | -21.7k |
Biggest calls
| CITADEL ADVISORS LLC | Added | $983.2k19.5k shares |
| JANE STREET GROUP, LLC | New | $231.9k4.6k shares |
| SIMPLEX TRADING, LLC | Added | $95.8k1.9k shares |
Biggest puts
| None |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution -1.9 pts · filed 2026-04-24 | 16.1% |
| T. Rowe Price Investment Management, Inc. 13G · institution filed 2025-11-14 | 9.1% |
| Neuberger Berman Group LLC 13G · institution new · filed 2025-10-14 | 5.6% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-30 | 5.2% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD CAPITAL MANAGEMENT LLC)
Insider purchases and sales in Q4 2025
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q1 2024 | 1 | $82.7k | 0 | — | — |
| Q2 2024 | 0 | — | 1 | $49.0k | — |
| Q3 2024 | 0 | — | 1 | $31.0k | — |
| Q4 2024 | 0 | — | 1 | $9.9k | — |
| Q1 2025 | 0 | — | 2 | $263.5k | — |
| Q2 2025 | 0 | — | 1 | $40.3k | — |
| Q3 2025 | 0 | — | 0 | — | — |
| Q4 2025 | 0 | — | 1 | $33.1k | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2025-11-18 | Ginegaw Lorrie Beth VP-HR | Sold | $33.1k650 shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q4 2025
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.00% of their portfolio | 3.5m $174.1m | Added +97.3k |
| T. Rowe Price Investment Management, Inc. 0.04% of their portfolio | 2.0m $103.4m | Added +416.6k |
| NEUBERGER BERMAN GROUP LLC 0.06% of their portfolio | 1.5m $76.8m | Added +512.1k |
| VANGUARD GROUP INC 0.00% of their portfolio | 1.4m $70.5m | Added +25.4k |
| MORGAN STANLEY 0.00% of their portfolio | 1.1m $53.8m | Added +563.5k |
| STATE STREET CORP 0.00% of their portfolio | 730.1k $36.8m | Added +27.6k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 464.5k $23.4m | Added +5.1k |
| Legal & General Group Plc 0.00% of their portfolio | 388.5k $19.6m | Added +8.8k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 342.7k $17.3m | Reduced -4.5k |
| Invesco Ltd. 0.00% of their portfolio | 307.6k $15.5m | Added +17.3k |
| Ledgewood Wealth Advisors, LLC 7.38% of their portfolio | 254.0k $12.8m | Unchanged |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 210.8k $10.6m | Added +6.1k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 198.3k $10.0m | Reduced -4.0k |
| TSP Capital Management Group, LLC 2.32% of their portfolio | 188.1k $9.5m | New |
| Zimmer Partners, LP 0.24% of their portfolio | 183.7k $9.3m | Added +29.1k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 180.8k $9.1m | Added +14.1k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 159.1k $8.0m | Reduced -86.2k |
| PRINCIPAL FINANCIAL GROUP INC 0.00% of their portfolio | 149.1k $7.5m | Added +22.8k |
| FIRST MANHATTAN CO. LLC. 0.02% of their portfolio | 147.2k $7.4m | Reduced -125 |
| RENAISSANCE TECHNOLOGIES LLC 0.01% of their portfolio | 129.2k $6.5m | Reduced -85.8k |
| ProShare Advisors LLC 0.01% of their portfolio | 118.9k $6.0m | Reduced -509 |
| CRAMER ROSENTHAL MCGLYNN LLC 0.34% of their portfolio | 105.1k $5.3m | Reduced -4.3k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 73.9k $3.7m | Added +27.9k |
| Public Sector Pension Investment Board 0.01% of their portfolio | 63.5k $3.2m | Reduced -6.8k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 62.3k $3.1m | Reduced -19.3k |
| UBS Group AG 0.00% of their portfolio | 56.9k $2.9m | Reduced -21.7k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 51.2k $2.6m | Reduced -3.1k |
| Penn Capital Management Company, LLC 0.20% of their portfolio | 51.0k $2.6m | Added +11.3k |
| NORTHSTAR ASSET MANAGEMENT INC 0.61% of their portfolio | 47.1k $2.4m | Reduced -4.7k |
| Aventail Capital Group, LP 0.13% of their portfolio | 45.5k $2.3m | New |
| EXCHANGE TRADED CONCEPTS, LLC 0.02% of their portfolio | 40.5k $2.0m | Added +291 |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 39.5k $2.0m | Reduced -8.4k |
| Nuveen, LLC 0.00% of their portfolio | 38.9k $2.0m | Reduced -778 |
| NFJ INVESTMENT GROUP, LLC 0.07% of their portfolio | 38.2k $1.9m | Reduced -2.0k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 38.1k $1.9m | Reduced -5.1k |
| Swiss National Bank 0.00% of their portfolio | 35.5k $1.8m | Added +800 |
| Corient Private Wealth LP 0.00% of their portfolio | 34.0k $1.7m | Added +23.8k |
| Quantinno Capital Management LP 0.00% of their portfolio | 29.0k $1.5m | Added +6.6k |
| Baird Financial Group, Inc. 0.00% of their portfolio | 28.9k $1.5m | Reduced -498 |
| TD Asset Management Inc 0.00% of their portfolio | 28.8k $1.5m | Added +1.7k |
| BARCLAYS PLC 0.00% of their portfolio | 28.5k $1.4m | Added +3.3k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 28.1k $1.4m | Reduced -42.5k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 27.9k $1.4m | Added +3.6k |
| OPPENHEIMER & CO INC 0.02% of their portfolio | 27.4k $1.4m | Added +601 |
| LPL Financial LLC 0.00% of their portfolio | 26.1k $1.3m | Reduced -2.3k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 25.5k $1.3m | Added +8.2k |
| CenterBook Partners LP 0.06% of their portfolio | 24.2k $1.2m | Added +8.3k |
| HighTower Advisors, LLC 0.00% of their portfolio | 23.1k $1.2m | Added +34 |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 22.6k $1.1m | Reduced -25.4k |
| Catalyst Funds Management Pty Ltd 0.25% of their portfolio | 21.5k $1.1m | Reduced -1.4k |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 20.3k $1.0m | Reduced -56.5k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 20.1k $1.0m | Reduced -2.9k |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 18.8k $947.0k | Reduced -15.0k |
| GABELLI FUNDS LLC 0.01% of their portfolio | 18.4k $925.2k | Unchanged |
| STOREBRAND ASSET MANAGEMENT AS 0.00% of their portfolio | 17.7k $893.5k | Unchanged |
| Thrivent Financial for Lutherans 0.00% of their portfolio | 17.4k $878.0k | Reduced -397 |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 16.8k $846.2k | Reduced -1.1k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 16.5k $831.8k | Added +11 |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 16.2k $818.9k | Added +404 |
| ExodusPoint Capital Management, LP 0.01% of their portfolio | 15.9k $799.8k | New |
| IQ EQ FUND MANAGEMENT (IRELAND) Ltd 0.05% of their portfolio | 15.7k $792.7k | Added +2.1k |
| PNC Financial Services Group, Inc. 0.00% of their portfolio | 15.4k $775.2k | Reduced -134 |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 14.9k $751.2k | Reduced -203 |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 13.9k $700.2k | Added +1.1k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 13.4k $675.9k | New |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 13.0k $655.1k | Added +629 |
| Magellan Asset Management Ltd 0.01% of their portfolio | 12.4k $626.0k | Unchanged |
| Abacus Wealth Partners, LLC 0.06% of their portfolio | 12.1k $609.3k | New |
| Private Advisor Group, LLC 0.00% of their portfolio | 11.7k $592.1k | Added +76 |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 11.1k $560.8k | Added +658 |
| Main Street Financial Solutions, LLC 0.04% of their portfolio | 10.6k $532.8k | Added +41 |
| MetLife Investment Management, LLC 0.00% of their portfolio | 10.5k $528.0k | Unchanged |
| Cambridge Investment Research Advisors, Inc. 0.00% of their portfolio | 10.4k $523.0k | Added +477 |
| SG Americas Securities, LLC 0.00% of their portfolio | 10.3k $518.0k | Reduced -16.2k |
| State of Alaska, Department of Revenue 0.01% of their portfolio | 9.9k $496.0k | Added +271 |
| Illinois Municipal Retirement Fund 0.01% of their portfolio | 9.7k $489.2k | Added +315 |
| COMMONWEALTH EQUITY SERVICES, LLC 0.00% of their portfolio | 9.3k $468.9k | Added +716 |
| Cerity Partners LLC 0.00% of their portfolio | 9.3k $466.7k | Reduced -2.9k |
| Inspire Investing, LLC 0.04% of their portfolio | 9.2k $466.0k | Added +873 |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 9.0k $454.0k | Unchanged |
| JANUS HENDERSON GROUP PLC 0.00% of their portfolio | 9.0k $452.8k | Unchanged |
| Daiwa Securities Group Inc. 0.00% of their portfolio | 9.0k $452.0k | Reduced -20 |
| Odyssean, LLC 0.32% of their portfolio | 8.8k $441.9k | First filing |
| Verition Fund Management LLC 0.00% of their portfolio | 8.7k $438.0k | Reduced -1.4k |
| Louisiana State Employees Retirement System 0.01% of their portfolio | 8.4k $423.5k | Added +100 |
| Tidal Investments LLC 0.00% of their portfolio | 8.4k $421.3k | Reduced -337 |
| STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio | 8.3k $418.7k | Reduced -518 |
| Parcion Private Wealth LLC 0.03% of their portfolio | 8.2k $413.3k | Reduced -114 |
| INTECH INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 7.3k $368.5k | Unchanged |
| Universal- Beteiligungs- und Servicegesellschaft mbH 0.00% of their portfolio | 6.9k $350.7k | Reduced -2.5k |
| BLACKHILL CAPITAL INC 0.02% of their portfolio | 6.7k $336.1k | Unchanged |
| GAMMA Investing LLC 0.02% of their portfolio | 6.6k $334.8k | Added +2.0k |
| COMERICA BANK 0.00% of their portfolio | 6.1k $307.7k | Added +883 |
| Rockefeller Capital Management L.P. 0.00% of their portfolio | 6.1k $306.4k | Added +5.1k |
| CITIGROUP INC 0.00% of their portfolio | 6.0k $304.6k | Reduced -159 |
| FMR LLC 0.00% of their portfolio | 6.0k $304.6k | Added +154 |
| GUYASUTA INVESTMENT ADVISORS INC 0.02% of their portfolio | 6.0k $302.5k | Unchanged |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 6.0k $301.1k | Reduced -1.0k |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 5.9k $296.0k | Added +120 |
| FARMERS & MERCHANTS TRUST Co OF LONG BEACH 0.06% of their portfolio | 5.6k $281.3k | Unchanged |