Company: MSEX
Filing Date: 2025-07-29
Form Type: 424B5
Source: 0001104659-25-071727
Chunk: 2

Company: MIDDLESEX WATER CO
Filing Date: 2025-07-29
Form: 424B5
Chunk 2
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 are to the lawful
currency of the United States.

This document is in two parts.
The first part is this prospectus supplement, which describes the terms of this offering of Middlesex Common Stock and also adds to and
updates information contained in the accompanying prospectus and the documents incorporated by reference into this prospectus supplement
and the accompanying prospectus. The second part, the accompanying prospectus dated May 12, 2025, including the documents incorporated
by reference therein, provides more general information. Generally, when we refer to this prospectus, we are referring to both parts
of this document combined. To the extent there is a conflict between the information contained in this prospectus supplement, on the
one hand, and the information contained in the accompanying prospectus or in any document incorporated by reference that was filed with
the SEC before the date of this prospectus supplement, on the other hand, you should rely on the information in this prospectus supplement.
If any statement in one of these documents is inconsistent with a statement in 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. 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 of 1933, as amended (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”.

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