Middlesex Water VP granted 2,597 restricted shares

Middlesex Water Company executive Jay L. Kooper reported equity compensation and related share movements.

Rhea-AI Filing Summary

Middlesex Water Company executive Jay L. Kooper reported equity compensation and related share movements. He received a grant of 2,597 shares of Common Stock as Restricted Stock at $52.05 per share for the current year. A separate 759-share block of previously granted Restricted Stock vested, and 350 shares of Common Stock were surrendered back to the company at $52.05 per share to cover tax withholding obligations tied to that vesting. Following these transactions, he directly holds 7,450 shares recorded as Common Stock (Restricted Stock Book) and 878 shares recorded as Common Stock (Book).

Insider Trade Summary

3 transactions reported

Mixed 3 txns

Insider Kooper Jay L

Role VP, Gen. Counsel & Secretary

Type	Security	Shares	Price	Value
Grant/Award	Common Stock (Restricted Stock Book)	2,597	$52.05	$135K
Other	Common Stock (Restricted Stock Book)	759	$52.05	$40K
Exercise Price or Tax Liability	Common Stock (Book)	350	$52.05	$18K

Holdings After Transaction: Common Stock (Restricted Stock Book) — 6,691 shares (Direct); Common Stock (Book) — 878 shares (Direct)

Footnotes (3)

1. F1. Represents the number of shares of Restricted Stock awarded for current year.
2. F2. Represents the number of shares of Restricted Stock originally awarded that have now vested.
3. 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.

Key Figures

Restricted Stock grant: 2,597 shares at $52.05 Vested Restricted Stock: 759 shares Shares surrendered for taxes: 350 shares at $52.05 +2 more

5 metrics

Restricted Stock grant 2,597 shares at $52.05 Current-year Restricted Stock award to Jay L. Kooper

Vested Restricted Stock 759 shares Shares of originally awarded Restricted Stock that have now vested

Shares surrendered for taxes 350 shares at $52.05 Common Stock returned to issuer to satisfy tax withholding

Restricted Stock holdings 7,450 shares Common Stock (Restricted Stock Book) directly held after transactions

Common Stock holdings 878 shares Common Stock (Book) directly held after transactions

Key Terms

Restricted Stock, vested, tax withholding obligations, Form 4

4 terms

Restricted Stock financial

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

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

vested financial

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

tax withholding obligations financial

"after choosing to surrender shares back to the Issuer to satisfy the tax withholding obligations"

Form 4 regulatory

"INSIDER FILING DATA (Form 4):"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transactions did MSEX executive Jay L. Kooper report?

Jay L. Kooper reported a grant of 2,597 Restricted Stock shares, vesting of 759 previously awarded Restricted Stock shares, and a surrender of 350 Common Stock shares to cover tax withholding obligations related to that vesting, all at a reference price of $52.05 per share.

Was the Middlesex Water (MSEX) Form 4 a market buy or sell?

The Form 4 shows compensation-related equity activity, not open-market trades. Shares were granted as Restricted Stock, vested, and some were surrendered back to the issuer to satisfy tax withholding obligations rather than sold in the open market.

How many Middlesex Water (MSEX) shares does Jay L. Kooper hold after these transactions?

After these transactions, Jay L. Kooper directly holds 7,450 shares classified as Common Stock (Restricted Stock Book) and 878 shares classified as Common Stock (Book), reflecting his post-transaction equity position as reported in this Form 4 filing.

What is the significance of the 2,597-share Restricted Stock grant at MSEX?

The 2,597-share Restricted Stock grant represents current-year equity compensation for Jay L. Kooper. It aligns his interests with shareholders by tying part of his pay to Middlesex Water common stock performance rather than cash-only compensation, as disclosed in the Form 4.

Why were 350 Middlesex Water shares surrendered by Jay L. Kooper?

The 350 shares of Common Stock were surrendered back to Middlesex Water to satisfy tax withholding obligations that arose when 759 Restricted Stock shares vested, according to the filing’s footnote. This is a standard tax-withholding mechanism, not an open-market sale.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 04/01/2026 - 12:19 PM EDT Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Kooper Jay L

(Last) (First) (Middle)

485C ROUTE 1 SOUTH

SUITE 400

(Street)

ISELIN NEW JERSEY 08830

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
MIDDLESEX WATER CO [ MSEX ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	VP, Gen. Counsel & Secretary

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/01/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock (Restricted Stock Book)	04/01/2026		A		2,597(1)	A	$52.05	7,450	D
Common Stock (Restricted Stock Book)	04/01/2026		J		759(2)	D	$52.05	6,691	D
Common Stock (Book)	04/01/2026		F		350(3)	A	$52.05	878	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

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

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

3. 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.

Remarks:

	/s/Jay L. Kooper	04/01/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)