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Middlesex Water MSEX

US equityMarket cap rank #3241Utilities - Regulated Water

$53.14 +$0.24 (+0.45%)

Pre-market · Oct 8, 8:00 am ET · After hours $53.14 0.00%

Open$52.57

Prev close$52.90

Day range$52.57 – $53.51

Volume138.3K

Market cap$1.00B

P/E (TTM)20.5

Dividend yield2.67%

Ownership & positioning

Who holds it, who is betting against it, and where the big money is moving

Institutional ownership84.3%-0.11 pts vs. prior quarter

Institutions holding266-1 vs. prior quarter

Insider trades (recent)35 buys / 15 sellsNet buying

Short interest4.58% of floatDays to cover 8.1 · as of 15 Sep 2026

Short-sale volume share21.1%5-day average of daily volume

Short-sale volume as % of daily volume

Large-order net flow, last 20 sessions

Net of large-order buying minus selling, in USD. Over this window: −$257.6K (8 inflow days, 12 outflow days).

Net flow by order size, last 20 sessions

Super/Big orders approximate institutional-size trades; Mid/Small approximate retail-size trades. Net buy minus sell value in each bucket, summed over the window.

The five largest holders on file together own 43.9% of shares outstanding.

Largest holders

BlackRock16.63%
T. Rowe Price Group, Inc.9.47%
Neuberger Berman Investment Advisers LLC8.51%
Vanguard Capital Management, LLC4.91%
Morgan Stanley4.42%
State Street Global Advisors4.24%
Vanguard Portfolio Management, LLC2.73%
Geode Capital Management, LLC2.66%

By investor type

Mutual Fund72.64%
Public Company5.37%
Hedge Fund3.29%
Individual/Insider2.66%
Family Office/Trust1.42%
Government Pension Fund0.84%
Private Company0.49%
Insurance Company0.25%

Reported short interest has held roughly steady near 4.58% of float over the last 6 biweekly reports (30 Jun 2026 to 15 Sep 2026).

Recent institutional activity

Holder	Type	Period	Share change	New stake
IQ EQ Fund Management (Ireland) Limited	Mutual Fund	2026/Q3	+19,470	0.1%
Nuveen Asset Management LLC	Insurance Company	2026/Q3	+37,976	0.2%
Janus Henderson Group plc	Mutual Fund	2026/Q3	+120,373	0.7%
BlackRock	Mutual Fund	2026/Q3	+117,859	16.6%
Two Sigma Investments, LP	Hedge Fund	2026/Q3	+97,485	0.9%
AQR Capital Management	Hedge Fund	2026/Q3	+64,881	0.4%
Dean Investment Associates, LLC	Mutual Fund	2026/Q3	+59,951	0.3%
State Street Global Advisors	Mutual Fund	2026/Q3	+54,178	4.2%
Neuberger Berman Investment Advisers LLC	Mutual Fund	2026/Q3	+54,161	8.5%
Dean Capital Management, LLC	Mutual Fund	2026/Q3	+43,543	0.2%
Legal & General Investment Management	Mutual Fund	2026/Q3	+31,657	2.3%
Geode Capital Management, LLC	Mutual Fund	2026/Q3	+30,638	2.7%
Nuance Investments, LLC	Mutual Fund	2026/Q3	+28,643	0.5%
Vanguard Portfolio Management, LLC	Mutual Fund	2026/Q3	+25,742	2.7%
Northern Trust Global Investments	Mutual Fund	2026/Q3	+24,651	1.2%

Institutional buy/sell activity by reporting period, largest moves first.

Insider transactions

Date	Insider	Title	Transaction	Shares	Price	Held after
10 Aug 2026	Joshua Bershad	Independent Director	Other Disposition	-6,900	–	249,356
6 Aug 2026	Lorrie Ginegaw	Officer	Open Market Disposition	-615	$57.61	9,762
31 Mar 2026	Vaughn McKoy	Independent Director	Other Acquisition	+865	$52.05	3,558
31 Mar 2026	Walter Reinhard	Lead Independent Director	Other Acquisition	+865	$52.05	6,916
31 Mar 2026	Robert Hoglund	Director	Other Acquisition	+865	$52.05	2,865
31 Mar 2026	Steven Klein	Independent Director	Other Acquisition	+865	$52.05	10,892
31 Mar 2026	Ann Noble	Independent Director	Other Acquisition	+865	$52.05	4,996
31 Mar 2026	Joshua Bershad	Independent Director	Other Acquisition	+865	$52.05	256,256
31 Mar 2026	Amy Mansue	Independent Director	Other Acquisition	+865	$52.05	12,066
31 Mar 2026	James Cosgrove	Independent Director	Other Acquisition	+865	$52.05	11,766
31 Mar 2026	Nadine Duchemin-Leslie	Chief Executive Officer	Other Acquisition	+12,675	$52.05	26,481
31 Mar 2026	Jay Kooper	Vice President	Other Acquisition	+2,947	$52.05	7,569
31 Mar 2026	Jay Kooper	Vice President	Other Disposition	-759	$52.05	7,569
31 Mar 2026	Lorrie Ginegaw	Officer	Other Acquisition	+2,381	$52.05	10,377
31 Mar 2026	Lorrie Ginegaw	Officer	Other Disposition	-823	$52.05	10,377
31 Mar 2026	Kim Hanemann	Independent Director	Other Acquisition	+865	$52.05	5,618
31 Mar 2026	Robert Fullagar	Officer	Other Acquisition	+2,522	$52.05	8,191
31 Mar 2026	Robert Fullagar	Officer	Other Disposition	-886	$52.05	8,191
31 Mar 2026	Georgia Simpson	VP of Information Technology & CTO	Other Acquisition	+2,478	$52.05	6,833
31 Mar 2026	Georgia Simpson	VP of Information Technology & CTO	Other Disposition	-759	$52.05	6,833

From Form 4/Form 144 filings. Negative share counts are disposals (sales, gifts, or shares withheld for taxes); positive are acquisitions.

Short interest, by report

Report date	Shares short	% of float	Days to cover
15 Sep 2026	862,662	4.6%	8.1
31 Aug 2026	782,818	4.2%	6.0
14 Aug 2026	839,099	4.5%	6.3
31 Jul 2026	826,625	4.4%	6.0
15 Jul 2026	901,246	4.8%	3.4
30 Jun 2026	860,652	4.6%	4.1

Discussion

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