Company: MSEX
Filing Date: 2025-05-12
Form Type: 424B5
Source: 0001104659-25-047381
Chunk: 3

Company: MIDDLESEX WATER CO
Filing Date: 2025-05-12
Form: 424B5
Chunk 3
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 another document having a later date (for example, a document
incorporated by reference in this prospectus supplement or in the accompanying prospectus) the statement in the document having the later
date modifies or supersedes the earlier statement. When we update the information contained in documents that have been incorporated by
reference by making future filings with the SEC, the information included or incorporated by reference in this prospectus supplement is
considered to be automatically updated and superseded. This prospectus supplement and the accompanying prospectus are part of a registration
statement on Form S-3 we have filed with the SEC, under the Securities Act. This prospectus supplement and the accompanying prospectus
do not contain all of the information in the registration statement. We have omitted certain parts of the registration statement, as permitted
by the rules and regulations of the SEC. You may find the registration statement, including exhibits, on the SEC’s website
at www.sec.gov. See “Where You Can Find More Information” and “Incorporation of Certain Documents by Reference”.

<div align='center'>S-i</div>

You should not consider any
information in this prospectus supplement or the accompanying prospectus to be investment, legal or tax advice. You should consult your
own counsel, accountants and other advisers for legal, tax, business, financial and related advice regarding the purchase of the common
stock offered by this prospectus supplement. If the description of the offering varies between this prospectus supplement and the accompanying
prospectus, you should rely on the information contained in this prospectus supplement.

Neither the delivery of this
prospectus supplement nor any sale made hereunder should be deemed to imply that there has been no change in the affairs of the Company
since the date of this prospectus supplement or that the information herein is correct as of any time subsequent to its date. This prospectus
supplement relates only to the Middlesex Common Stock offered hereby and is not to be relied upon in connection with the purchase or sale
of any other securities in the Company.

<div align='center'>S-ii

CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS</div>

This prospectus supplement
and the accompanying prospectus, including the documents that we incorporate by reference, contain forward-looking statements within the
meaning of Section 27A of the Securities Act and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange
Act”). Any statements about our expectations,