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Middlesex Water Co

MSEX
Exchange
Nasdaq
Industry
Water Supply
SEC CIK
0000066004

In the last 90 days, Middlesex Water Co insiders filed 0 open-market purchases and 1 sale; 227 institutions reported holding it in 13F filings for Q2 2026, worth $881.5M in total; no superinvestor holds it.

Other share classesMSEXP

13F holders, Q3 2025

Institutional positions in Middlesex Water Co as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
214
−1 vs. Q2 2025
Shares held
14.3M
+811.1K (+6.0%) vs. Q2 2025
Total value
$776.1M
+$37.0M (+5.0%) vs. Q2 2025
New holders
27
84 more added
Sold out
28
58 more reduced

2 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting MSEX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2025: 214 institutions
Q1 2021: 161 institutionsQ2 2021: 160 institutionsQ3 2021: 189 institutionsQ4 2021: 205 institutionsQ1 2022: 203 institutionsQ2 2022: 209 institutionsQ3 2022: 200 institutionsQ4 2022: 202 institutionsQ1 2023: 201 institutionsQ2 2023: 185 institutionsQ3 2023: 186 institutionsQ4 2023: 191 institutionsQ1 2024: 191 institutionsQ2 2024: 197 institutionsQ3 2024: 199 institutionsQ4 2024: 210 institutionsQ1 2025: 215 institutionsQ2 2025: 217 institutionsQ3 2025: 214 institutionsQ4 2025: 203 institutionsQ1 2026: 221 institutionsQ2 2026: 227 institutions
Value heldQ3 2025: $776.1M
Q1 2021: $846.0MQ2 2021: $877.9MQ3 2021: $1.28BQ4 2021: $1.45BQ1 2022: $1.31BQ2 2022: $1.04BQ3 2022: $925.3MQ4 2022: $977.4MQ1 2023: $921.9MQ2 2023: $1.01BQ3 2023: $829.0MQ4 2023: $854.4MQ1 2024: $675.4MQ2 2024: $678.3MQ3 2024: $901.2MQ4 2024: $713.2MQ1 2025: $886.9MQ2 2025: $739.4MQ3 2025: $776.1MQ4 2025: $764.0MQ1 2026: $793.4MQ2 2026: $881.5M
Institutions holding MSEX and their total value by quarter
QuarterHoldersValue
Q2 2026227$881.5M
Q1 2026221$793.4M
Q4 2025203$764.0M
Q3 2025214$776.1M
Q2 2025217$739.4M
Q1 2025215$886.9M
Q4 2024210$713.2M
Q3 2024199$901.2M
Q2 2024197$678.3M
Q1 2024191$675.4M
Q4 2023191$854.4M
Q3 2023186$829.0M
Q2 2023185$1.01B
Q1 2023201$921.9M
Q4 2022202$977.4M
Q3 2022200$925.3M
Q2 2022209$1.04B
Q1 2022203$1.31B
Q4 2021205$1.45B
Q3 2021189$1.28B
Q2 2021160$877.9M
Q1 2021161$846.0M

Institutions, Q3 2025

Shares, value and share of portfolio for each institution holding Middlesex Water Co; share changes are against Q2 2025.

Institutions holding MSEX in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Covestor Ltd2$00.00%00.0%Unchanged
Capital Advisors, Ltd. LLC1$00.00%+1New
Transamerica Financial Advisors, Inc.1$540.00%+1New
SBI Securities Co., Ltd.1$540.00%+1New
Caitong International Asset Management Co., Ltd2$1080.00%+2New
Abound Wealth Management2$1090.00%00.0%Unchanged
Sunbelt Securities, Inc.3$1620.00%+3New
Quaker Wealth Management, LLC3$1630.00%00.0%Unchanged
TFC Financial Management5$2780.00%00.0%Unchanged
Atlantic Trust, LLC6$3250.00%00.0%Unchanged
Huntington National Bank8$4330.00%00.0%Unchanged
Principal Securities, Inc.8$4330.00%+4+100.0%Added
Fortitude Family Office, LLC9$4870.00%+1+12.5%Added
Bare Financial Services, Inc10$5410.00%+10New
Quarry LP11$5950.00%−162−93.6%Reduced
Farmers & Merchants Investments Inc12$6490.00%00.0%Unchanged
Parkside Financial Bank & Trust12$6500.00%−10−45.5%Reduced
Private Wealth Management Group, LLC17$9210.00%00.0%Unchanged
Vermillion Wealth Management, Inc.19$1.04K0.00%00.0%Unchanged
GPS Wealth Strategies Group, LLC21$1.11K0.00%+1+5.0%Added
TD Private Client Wealth LLC23$1.25K0.00%+23New
Tortoise Investment Management, LLC23$1.25K0.00%+23New
Rothschild Investment LLC35$1.89K0.00%00.0%Unchanged
VSM Wealth Advisory, LLC35$1.89K0.00%00.0%Unchanged
GWM Advisors LLC36$1.95K0.00%+36New
Bessemer Group Inc53$3.00K0.00%00.0%Unchanged
Larson Financial Group LLC58$3.13K0.00%+46+383.3%Added
IFP Advisors, Inc60$3.25K0.00%+49+445.5%Added
Umb Bank N A61$3.30K0.00%−61−50.0%Reduced
Salomon & Ludwin, LLC62$3.32K0.00%+62New
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.72$3.90K0.00%00.0%Unchanged
SJS Investment Consulting Inc.100$5.41K0.00%00.0%Unchanged
Quent Capital, LLC112$6.06K0.00%+112New
Parallel Advisors, LLC116$6.28K0.00%+69+146.8%Added
Wealthspire Advisors, LLC117$6.33K0.00%+117New
BNP PARIBAS ASSET MANAGEMENT Holding S.A.144$8.00K0.00%−48−25.0%Reduced
EverSource Wealth Advisors, LLC163$8.82K0.00%+106+186.0%Added
Smartleaf Asset Management LLC173$9.23K0.00%+8+4.8%Added
Spire Wealth Management223$12.1K0.00%−92−29.2%Reduced
Fifth Third Bancorp242$13.1K0.00%−83−25.5%Reduced
Harbour Investments, Inc.250$13.5K0.00%00.0%Unchanged
Rosenberg Matthew Hamilton265$14.3K0.00%00.0%Unchanged
TSFG, LLC284$15.0K0.00%+2+0.7%Added
Hanson & Doremus Investment Management300$16.0K0.00%00.0%Unchanged
Farther Finance Advisors, LLC302$16.3K0.00%+288+2,057.1%Added
Signaturefd, LLC309$16.7K0.00%−110−26.3%Reduced
Massmutual Trust Co FSB342$18.5K0.00%+26+8.2%Added
Jones Financial Companies LLLP425$22.7K0.00%+1+0.2%Added
Central Trust Co425$23.0K0.00%00.0%Unchanged
Northwestern Mutual Wealth Management Co442$23.9K0.00%+2+0.5%Added
Creative Financial Designs Inc449$24.3K0.00%−2,296−83.6%Reduced
Clarity Asset Management, Inc.480$26.0K0.01%+3+0.6%Added
Versant Capital Management, Inc566$30.6K0.00%+469+483.5%Added
Allworth Financial LP585$31.7K0.00%+46+8.5%Added
Glen Eagle Advisors, LLC615$33.3K0.00%+315+105.0%Added
North Star Investment Management Corp.625$33.8K0.00%00.0%Unchanged
Hantz Financial Services, Inc.635$34.0K0.00%+368+137.8%Added
Nisa Investment Advisors, LLC645$34.9K0.00%+170+35.8%Added
Costello Asset Management, INC781$42.3K0.01%+4+0.5%Added
Crowley Wealth Management, Inc.785$42.5K0.03%00.0%Unchanged
NBT Bank N A820$44.4K0.00%00.0%Unchanged
US Bancorp825$44.6K0.00%−587−41.6%Reduced
Concord Wealth Partners919$49.7K0.01%+2+0.2%Added
Rockefeller Capital Management L.P.963$52.1K0.00%+963New
City State Bank967$52.3K0.02%00.0%Unchanged
Steward Partners Investment Advisory, LLC971$52.6K0.00%00.0%Unchanged
Tower Research Capital LLC (TRC)993$53.7K0.00%−665−40.1%Reduced
Pathway Financial Advisers, LLC995$53.8K0.02%+995New
Sterling Capital Management LLC1,049$56.8K0.00%+626+148.0%Added
Essential Partners LLC1,133$61.3K0.02%+1,133New
Global Retirement Partners, LLC1,272$68.9K0.00%00.0%Unchanged
St Germain D J Co Inc1,332$72.1K0.00%00.0%Unchanged
Ameritas Investment Partners, Inc.1,491$80.7K0.00%−251−14.4%Reduced
Bokf, NA2,461$133.2K0.00%00.0%Unchanged
Public Employees Retirement Association of Colorado2,966$161.0K0.00%00.0%Unchanged
KLP Kapitalforvaltning AS3,500$189.4K0.00%00.0%Unchanged
Armstrong Advisory Group, Inc3,534$191.3K0.01%−17−0.5%Reduced
CWM, LLC3,906$211.0K0.00%+2,164+124.2%Added
SRS Capital Advisors, Inc.4,013$217.2K0.00%+3,861+2,540.1%Added
Oregon Public Employees Retirement Fund4,014$217.2K0.00%−100−2.4%Reduced
Quantessence Capital LLC4,086$221.1K0.07%+4,086New
Coldstream Capital Management Inc4,191$226.8K0.00%−466−10.0%Reduced
State of Tennessee, Treasury Department4,351$235.5K0.00%−2,246−34.0%Reduced
Atria Investments LLC4,434$240.0K0.00%+4,434New
Clean Yield Group4,525$244.9K0.07%00.0%Unchanged
Commonwealth of Pennsylvania Public School Empls Retrmt Sys4,588$248.3K0.00%−13−0.3%Reduced
GAMMA Investing LLC4,649$251.6K0.01%+1,027+28.4%Added
Cullen Capital Management LLC4,695$254.1K0.00%00.0%Unchanged
Cetera Investment Advisers4,767$258.0K0.00%+4,767New
State Board of Administration of Florida Retirement System4,791$259.3K0.00%−22,402−82.4%Reduced
Envestnet Asset Management Inc4,900$265.2K0.00%+4,900New
Police & Firemen's Retirement System of New Jersey4,933$267.0K0.00%+970+24.5%Added
Pictet Asset Management Holding SA5,000$270.6K0.00%+61+1.2%Added
Teton Advisors, LLC5,000$270.6K0.17%+5,000New
Teachers Retirement System of the State of Kentucky5,057$274.0K0.00%−642−11.3%Reduced
Kestra Advisory Services, LLC5,122$277.2K0.00%−50−1.0%Reduced
Stifel Financial Corp5,215$282.2K0.00%+698+15.5%Added
Comerica Bank5,220$282.5K0.00%−1,270−19.6%Reduced
Janney Montgomery Scott LLC5,228$283.0K0.00%+39+0.8%Added
Syon Capital LLC5,235$283.3K0.02%+5,235New