Jay L. Kooper - 01 Apr 2026 Form 4 Insider Report for MIDDLESEX WATER CO (MSEX)

Reporting relationship: VP, Gen. Counsel & Secretary
Issuer ticker: MSEX
Reported as of: 01 Apr 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 01 Apr 2026, 12:19:03 UTC
Prior SEC filing: 03 Apr 2025
Source filing: View source filing
Reporting owner signature: /s/Jay L. Kooper

Key filing fact

Jay L. Kooper filed Form 4 for MIDDLESEX WATER CO (MSEX) on 01 Apr 2026.

Key facts

This page summarizes Jay L. Kooper's Form 4 filing for MIDDLESEX WATER CO (MSEX).
3 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 01 Apr 2026, 12:19.

Change

Previous filing in this sequence was filed on 03 Apr 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001603213 Primary reporting owner

Kooper Jay L

Relationship: VP, Gen. Counsel & Secretary
Address: 485C ROUTE 1 SOUTH, SUITE 400, ISELIN
Signature: /s/Jay L. Kooper
Signature date: 01 Apr 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

MSEX transaction

Common Stock (Restricted Stock Book)

Award

Transaction value
Shares: +2,597
Change %: +54%
Price: $52.05^*
Shares after: 7,450
Date: 01 Apr 2026
Ownership: Direct
Footnotes: F1

MSEX transaction

Common Stock (Restricted Stock Book)

Other

Transaction value
Shares: -759
Change %: -10%
Price: $52.05^*
Shares after: 6,691
Date: 01 Apr 2026
Ownership: Direct
Footnotes: F2

MSEX transaction

Common Stock (Book)

Tax liability

Transaction value
Shares: +350
Change %: +66%
Price: $52.05^*
Shares after: 878
Date: 01 Apr 2026
Ownership: Direct
Footnotes: F3

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

Represents the number of shares of Restricted Stock awarded for current year.

Footnote F2

Represents the number of shares of Restricted Stock originally awarded that have now vested.

Footnote F3

Represents the number of shares released to the awardee after choosing to surrender shares back to the Issuer to satisfy the tax withholding obligations that arose in connection with the vesting of the Restricted Stock.