Company: MSEX
Filing Date: 2025-07-29
Form Type: 424B5
Source: 0001104659-25-071727
Chunk: 55

Company: MIDDLESEX WATER CO
Filing Date: 2025-07-29
Form: 424B5
Chunk 55
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us, at no cost by writing or telephoning us at the following:

Middlesex Water Company 485C
Route 1 South, Suite 400, Iselin, New Jersey 08830 (732) 634-1500.

You may also access these
documents, free of charge on the SEC’s website at http://www.sec.gov or on our website at .
Except as expressly stated herein, no information contained in, or that can be accessed through, our website is incorporated by reference into this prospectus, and no such information should be considered a part of this prospectus.

This prospectus, any accompanying
prospectus supplement or information incorporated by reference herein or therein contains summaries of certain agreements that we have
filed as exhibits to various SEC filings, as well as certain agreements that we will enter into in connection with the offering of securities
covered by any particular accompanying prospectus supplement. The descriptions of these agreements contained in this prospectus, any
accompanying prospectus supplement or information incorporated by reference herein or therein do not purport to be complete and are subject
to, and qualified in their entirety by reference to, the definitive agreements. Copies of the definitive agreements will be made available
without charge to you by making a written or oral request to us.

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Any statement contained herein
or in a document incorporated or deemed to be incorporated by reference herein shall be deemed to be modified or superseded for purposes
of this prospectus to the extent that a statement contained herein, in any other subsequently filed document which also is or is deemed
to be incorporated by reference herein or in any accompanying prospectus supplement, modifies or supersedes such statement. Any such
statement so modified or superseded shall not be deemed, except as so modified and superseded, to constitute a part of this prospectus.

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<div align='center'>712,353 Shares

Middlesex Water Company
Investment Plan</div>