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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, Q1 2025

Institutional positions in Middlesex Water Co as of Mar 31, 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
215
+9 vs. Q4 2024
Shares held
13.8M
+331.8K (+2.5%) vs. Q4 2024
Total value
$886.9M
+$176.4M (+24.8%) vs. Q4 2024
New holders
33
57 more added
Sold out
24
76 more reduced

4 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2024: 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 holdersQ1 2025: 215 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 heldQ1 2025: $886.9M
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, Q1 2025

Shares, value and share of portfolio for each institution holding Middlesex Water Co; share changes are against Q4 2024.

Institutions holding MSEX in Q1 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Versor Investments LP5,600$359.0K0.06%+5,600New
Royal Bank of Canada5,609$359.0K0.00%−1,009−15.2%Reduced
Teachers Retirement System of the State of Kentucky5,699$365.0K0.00%00.0%Unchanged
FMR LLC5,771$369.9K0.00%−4,883−45.8%Reduced
State Board of Administration of Florida Retirement System5,783$370.7K0.00%+992+20.7%Added
Pictet Asset Management Holding SA5,804$372.0K0.00%+795+15.9%Added
Los Angeles Capital Management LLC5,911$378.9K0.00%+5,911New
Guyasuta Investment Advisors Inc6,000$384.6K0.03%00.0%Unchanged
Comerica Bank6,376$408.7K0.00%−1,161−15.4%Reduced
Manufacturers Life Insurance Company, The6,394$409.9K0.00%−2,025−24.1%Reduced
Yousif Capital Management, LLC6,603$423.3K0.00%−90−1.3%Reduced
Blackhill Capital Inc6,666$427.3K0.02%00.0%Unchanged
SG Americas Securities, LLC7,080$454.0K0.00%−2,515−26.2%Reduced
KLP Kapitalforvaltning AS7,200$461.5K0.00%00.0%Unchanged
Quantinno Capital Management LP7,316$469.0K0.00%+7,316New
Illinois Municipal Retirement Fund7,423$475.8K0.01%−3,090−29.4%Reduced
Intech Investment Management LLC7,480$479.5K0.00%+116+1.6%Added
Advisor Group Holdings, Inc.7,486$480.0K0.00%−3,043−28.9%Reduced
Quadrant Capital Group LLC7,512$481.5K0.02%+3,431+84.1%Added
Mariner, LLC7,615$487.9K0.00%−930−10.9%Reduced
Graham Capital Management, L.P.7,666$491.4K0.02%+7,666New
Daiwa Securities Group Inc.7,742$496.0K0.00%−571−6.9%Reduced
Glenmede Trust Co NA7,939$508.9K0.00%+3,195+67.3%Added
Parcion Private Wealth LLC8,000$512.8K0.04%00.0%Unchanged
Quantbot Technologies LP8,180$524.3K0.02%+8,180New
Louisiana State Employees Retirement System8,400$538.4K0.01%−200−2.3%Reduced
Janus Henderson Group PLC8,972$569.4K0.00%00.0%Unchanged
New York State Teachers Retirement System8,911$571.0K0.00%00.0%Unchanged
Corebridge Financial, Inc.9,230$591.6K0.00%−181−1.9%Reduced
State of Alaska, Department of Revenue9,894$634.0K0.01%−221−2.2%Reduced
Universal- Beteiligungs- und Servicegesellschaft mbH10,227$655.5K0.00%+10,227New
Main Street Financial Solutions, LLC10,447$669.7K0.06%00.0%Unchanged
MetLife Investment Management10,472$671.3K0.00%−129−1.2%Reduced
Raymond James Financial Inc10,498$673.0K0.00%+579+5.8%Added
Aquatic Capital Management LLC10,588$678.7K0.02%+2,458+30.2%Added
Toroso Investments, LLC10,869$696.7K0.01%−794−6.8%Reduced
Private Advisor Group, LLC10,964$702.8K0.00%00.0%Unchanged
Verition Fund Management LLC11,555$740.7K0.00%+11,555New
State of Wisconsin Investment Board11,645$746.4K0.00%+17+0.1%Added
Commonwealth Equity Services, LLC11,709$751.0K0.00%+3,130+36.5%Added
Magellan Asset Management Ltd12,288$787.7K0.01%00.0%Unchanged
XTX Topco Ltd12,364$792.5K0.04%+12,364New
Wells Fargo & Company12,873$825.2K0.00%+260+2.1%Added
Exchange Traded Concepts, LLC12,960$830.7K0.01%+12,960New
Franklin Resources Inc13,140$842.3K0.00%+29+0.2%Added
Manchester Capital Management LLC13,515$866.3K0.11%+13,515New
Mirae Asset Global ETFs Holdings Ltd.13,921$892.3K0.00%+1,058+8.2%Added
Storebrand Asset Management AS14,400$923.0K0.00%00.0%Unchanged
Squarepoint Ops LLC15,451$990.4K0.00%−9,922−39.1%Reduced
Cerity Partners LLC15,482$992.4K0.00%−2,234−12.6%Reduced
The PNC Financial Services Group, Inc.16,363$1.05M0.00%−438−2.6%Reduced
Deutsche Bank AG16,510$1.06M0.00%−704−4.1%Reduced
California State Teachers Retirement System16,670$1.07M0.00%00.0%Unchanged
Prudential Financial Inc17,564$1.13M0.00%−230−1.3%Reduced
Gabelli Funds LLC18,350$1.18M0.01%−1,100−5.7%Reduced
Ethic Inc.18,954$1.22M0.02%−4,713−19.9%Reduced
Northstar Asset Management Inc19,347$1.24M0.37%+19,347New
HighTower Advisors, LLC19,412$1.24M0.00%+2,091+12.1%Added
Citadel Advisors LLC19,418$1.24M0.00%−7,745−28.5%Reduced
CI Private Wealth, LLC20,235$1.30M0.00%+293+1.5%Added
Marshall Wace, LLP20,688$1.33M0.00%+20,688New
Winton Group Ltd21,264$1.36M0.08%+1,793+9.2%Added
Alliancebernstein L.P.21,443$1.37M0.00%00.0%Unchanged
Price T Rowe Associates Inc21,541$1.38M0.00%+828+4.0%Added
GWN Securities Inc.26,298$1.45M0.08%+26,298New
Barclays PLC23,025$1.48M0.00%−8,251−26.4%Reduced
Assenagon Asset Management S.A.23,357$1.50M0.00%+4,291+22.5%Added
TD Asset Management Inc25,588$1.64M0.00%00.0%Unchanged
Oppenheimer & Co Inc25,811$1.65M0.02%+5,948+29.9%Added
LPL Financial LLC27,007$1.73M0.00%+86+0.3%Added
Citigroup Inc27,240$1.75M0.00%+1,266+4.9%Added
Thrivent Financial for Lutherans28,127$1.80M0.00%+14,326+103.8%Added
Russell Investments Group, Ltd.28,835$1.85M0.00%+20,844+260.8%Added
Great West Life Assurance Co29,813$1.91M0.00%+9,199+44.6%Added
Deprince Race & Zollo Inc33,482$2.15M0.04%+33,482New
Swiss National Bank34,562$2.22M0.00%−400−1.1%Reduced
American Century Companies Inc34,985$2.24M0.00%+5,447+18.4%Added
Susquehanna International Group, LLP41,134$2.64M0.00%+32,537+378.5%Added
Ameriprise Financial Inc44,425$2.85M0.00%−7,009−13.6%Reduced
UBS Group AG45,968$2.95M0.00%−4,197−8.4%Reduced
NFJ Investment Group, LLC50,127$3.21M0.11%+50,127New
Nuveen, LLC51,575$3.31M0.00%+51,575New
Rhumbline Advisers51,780$3.32M0.00%−2,523−4.6%Reduced
Dark Forest Capital Management LP52,371$3.36M0.15%+52,371New
Millennium Management LLC54,376$3.49M0.00%+12,116+28.7%Added
JPMorgan Chase & Co55,583$3.56M0.00%−36,977−39.9%Reduced
Public Sector Pension Investment Board56,620$3.63M0.02%+11,996+26.9%Added
Bank of America Corp58,393$3.74M0.00%+1,133+2.0%Added
UBS Asset Management Americas Inc59,222$3.80M0.00%+2,349+4.1%Added
Jane Street Group, LLC67,989$4.36M0.01%−23,541−25.7%Reduced
D. E. Shaw & Co., Inc.71,075$4.56M0.01%+55,299+350.5%Added
Principal Financial Group Inc88,933$5.70M0.00%+2,293+2.6%Added
TSP Capital Management Group, LLC109,217$7.00M2.30%−71−0.1%Reduced
Zimmer Partners, LP112,257$7.20M0.15%+112,257New
ProShare Advisors LLC115,563$7.41M0.02%−18,066−13.5%Reduced
Amundi119,762$7.97M0.00%−8,764−6.8%Reduced
Cramer Rosenthal McGlynn LLC148,947$9.55M0.69%+46,562+45.5%Added
Charles Schwab Investment Management Inc169,014$10.8M0.00%−3,458−2.0%Reduced
First Manhattan Co169,788$10.9M0.03%−8,387−4.7%Reduced
Renaissance Technologies LLC180,413$11.6M0.02%+19,200+11.9%Added