MSEX / Middlesex Water Company - SEC Dosyaları, Yıllık Rapor, Vekil Beyanı

Middlesex Water Company
US ˙ NasdaqGS ˙ US5966801087

Temel İstatistikler
CIK 66004
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Middlesex Water Company
SEC Filings (Chronological Order)
Bu sayfa, başka bir yerde sunduğumuz mülkiyet başvuruları hariç, SEC Dosyalarının tam ve kronolojik bir listesini sunmaktadır.
May 20, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: May 19, 2026 MIDDLESEX WATER COMPANY (Exact name of registrant as s

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: May 19, 2026 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of incorporation or organization) (Commission File Number) (I.R.S. E

April 30, 2026 EX-2.1 1

AGREEMENT AND PLAN OF MERGER

Exhibit 2.1.1 AGREEMENT AND PLAN OF MERGER THIS AGREEMENT AND PLAN OF MERGER (this “Agreement”) is made and entered into on this 1st day of April, 2026 by and among Middlesex Water Company, a New Jersey corporation (“Middlesex”) and Pinelands Water Company, a New Jersey corporation (“Pinelands Water”), and Pinelands Wastewater Company (“Pinelands Wastewater”), a New Jersey corporation. Middlesex,

April 30, 2026 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2026 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 0-422 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 22-1114430 (State of incorporation) (IRS employer identification no.

April 30, 2026 EX-2.1 2

CERTIFICATE OF MERGER PINELANDS WATER COMPANY PINELANDS WASTEWATER COMPANY WITH AND INTO MIDDLESEX WATER COMPANY

Exhibit 2.1.2 CERTIFICATE OF MERGER OF PINELANDS WATER COMPANY AND PINELANDS WASTEWATER COMPANY WITH AND INTO MIDDLESEX WATER COMPANY To the Department of the Treasury of the State of New Jersey: Pursuant to the provisions of Section 14A:10-7 of the New Jersey Business Corporation Act, it is hereby certified that: 1. The names of the merging corporations are Pinelands Water Company and Pinelands W

April 30, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: April 30, 2026 MIDDLESEX WATER COMPANY (Exact name of registrant as

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: April 30, 2026 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of incorporation or organization) (Commission File Number) (I.R.S.

April 30, 2026 EX-99.1

Middlesex Water Company Reports First Quarter 2026 Earnings

Middlesex Water Company Reports First Quarter 2026 Earnings •Diluted earnings per share (“EPS”) of $0.

April 6, 2026 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of The Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of The Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Defin

April 6, 2026 DEF 14A

DEFINITIVE PROXY STATEMENT

IDDLESEX ► ATER COMPANY Sustaining Life with Every Drop ,t4 Notice of 2026 Annual Meeting of Shareholders and Proxy Statement May 19, 2026 I 11:00 AM EDT Virtual Meeting Notice of 2026 Annual Meeting of Shareholders and Proxy Statement May 19, 2026 I 11:00 AM EDT Virtual Meeting c53 IDDLESEX ATER COMPANY Dear Valued Shareholders, I am pleased to invite you to Middlesex Water Company's Annual Meeting of Shareholders which will be conducted virtually on Tuesday, May 19, 2026 at 11:00 a.

April 6, 2026 ARS

ANNUAL REPORT TO SECURITY HOLDERS

2025 Annual ReportAnnual Meeting The Annual Meeting of Shareholders of Middlesex Water Company will be held on Tuesday, May 19, 2026 at 11:00 a.

April 6, 2026 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of The Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of The Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Defin

March 26, 2026 EX-99.2

CHANGE IN CONTROL AGREEMENT

EXHIBIT 99.2 CHANGE IN CONTROL AGREEMENT This Change in Control Termination Agreement (the “CIC Agreement”) is entered into as of March 26, 2026, between Middlesex Water Company (the “Company”), a New Jersey corporation, and Tatyana Kaplan (referred to as “You” in this CIC Agreement). Recitals A.The Company considers it essential to the best interests of its shareholders to foster the continuous e

March 26, 2026 EX-99.1

MIDDLESEX WATER COMPANY APPOINTS TATYANA KAPLAN AS VICE PRESIDENT AND CHIEF ACCOUNTING OFFICER

MIDDLESEX WATER COMPANY APPOINTS TATYANA KAPLAN AS VICE PRESIDENT AND CHIEF ACCOUNTING OFFICER ISELIN, N.

March 26, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 26, 2026 MIDDLESEX WATER CO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 26, 2026 MIDDLESEX WATER COMPANY (Exact Name of Registrant as Specified in Charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of incorporation or organization) (C

February 24, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 20, 2026 MIDDLESEX WATER

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 20, 2026 MIDDLESEX WATER COMPANY (Exact Name of Registrant as Specified in Charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of incorporation or organization)

February 24, 2026 EX-1.1

AMENDMENT TO THE ATM EQUITY OFFERING SALES AGREEMENT

AMENDMENT TO THE ATM EQUITY OFFERING SALES AGREEMENT February 20, 2026 BOFA SECURITIES, INC.

February 20, 2026 424B5

Up to $110,000,000 Common Stock

Filed pursuant to Rule 424(b)(5) Registration File No. 333-287177 Supplement No. 1 dated February 20, 2026 To Prospectus Supplement dated May 12, 2025 (To Prospectus dated May 12, 2025) Up to $110,000,000 Common Stock This supplement (this “Supplement”) updates and supplements the prospectus supplement, dated May 12, 2025 (the “Prospectus Supplement”), filed with the Securities and Exchange Commis

February 19, 2026 8-K

+UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: February 19, 2026 MIDDLESEX WATER COMPANY (Exact name of registran

+UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: February 19, 2026 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of incorporation or organization) (Commission File Number) (I.

February 19, 2026 EX-10.57

TIDEWATER UTILITIES, INC. $996,075 GENERAL OBLIGATION BOND (SUPPLEMENTAL KENDALE ROAD INTERCONNECTION PROJECT) SERIES 2025A-DWSRF FINANCING AGREEMENT TIDEWATER UTILITIES, INC. DELAWARE DRINKING WATER STATE REVOLVING FUND, ACTING BY AND THROUGH THE DE

EXHIBIT 10.57 TIDEWATER UTILITIES, INC. $996,075 GENERAL OBLIGATION BOND (SUPPLEMENTAL KENDALE ROAD INTERCONNECTION PROJECT) SERIES 2025A-DWSRF FINANCING AGREEMENT BETWEEN TIDEWATER UTILITIES, INC. AND DELAWARE DRINKING WATER STATE REVOLVING FUND, ACTING BY AND THROUGH THE DELAWARE DEPARTMENT OF HEALTH AND SOCIAL SERVICES, DIVISION OF PUBLIC HEALTH Loan No. 22000041 #4903-8400-3203 v2 EXHIBIT 10.5

February 19, 2026 EX-21

Middlesex Water Company

Exhibit 21 Middlesex Water Company Subsidiaries Jurisdiction of Organization Tidewater Utilities, Inc. Delaware Pinelands Water Company New Jersey Pinelands Wastewater Company New Jersey Utility Service Affiliates (Perth Amboy) Inc. New Jersey Utility Service Affiliates, Inc. New Jersey Twin Lakes Utilities, Inc. Pennsylvania Middlesex Water Maryland, Inc. Maryland

February 19, 2026 EX-10.23(I)

[REMAINDER OF PAGE INTENTIONALLY LEFT BLANK; SIGNATURE PAGES FOLLOW]

EXHIBIT 10.23(i) Second Amended and Restated Loan Agreement THIS SECOND AMENDED AND RESTATED LOAN AGREEMENT (hereinafter, as it may be from time to time amended, modified, extended, renewed, substituted, and/or supplemented, referred to as this “Agreement”), is entered into as of February 17, 2026, between MIDDLESEX WATER COMPANY, TIDEWATER UTILITIES, INC., UTILITY SERVICE AFFILIATES (PERTH AMBOY)

February 19, 2026 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K (Mark One) þ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2025 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 0-422 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 22-1114430 (State of Incorporation) (IRS employer identification no.

February 19, 2026 EX-10.58

SOUTHERN SHORES WATER COMPANY, L.L.C. $418,000 GENERAL OBLIGATION BOND (LEAD SERVICE LINE SEA COLONY COMMUNITY VACUUM EXCAVATION PROJECT) SERIES 2025-DWSRF FINANCING AGREEMENT SOUTHERN SHORES WATER COMPANY, L.L.C. DELAWARE DRINKING WATER STATE REVOLV

EXHIBIT 10.58 SOUTHERN SHORES WATER COMPANY, L.L.C. $418,000 GENERAL OBLIGATION BOND (LEAD SERVICE LINE SEA COLONY COMMUNITY VACUUM EXCAVATION PROJECT) SERIES 2025-DWSRF FINANCING AGREEMENT BETWEEN SOUTHERN SHORES WATER COMPANY, L.L.C. AND DELAWARE DRINKING WATER STATE REVOLVING FUND, ACTING BY AND THROUGH THE DELAWARE DEPARTMENT OF HEALTH AND SOCIAL SERVICES, DIVISION OF PUBLIC HEALTH Loan No. 28

February 19, 2026 EX-10.23(H)

[REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]

EXHIBIT 10.23(h) Amended and Restated Revolving Line of Credit Note (Multi-Rate Options – SOFR) $100,000,000.00 February 17, 2026 FOR VALUE RECEIVED, MIDDLESEX WATER COMPANY, TIDEWATER UTILITIES, INC., UTILITY SERVICE AFFILIATES (PERTH AMBOY) INC., UTILITY SERVICE AFFILIATES INC., WHITE MARSH ENVIRONMENTAL SYSTEMS, INC., and MIDDLESEX WATER MARYLAND, INC. (individually and collectively, jointly an

February 19, 2026 EX-99.1

Middlesex Water Company Reports 2025 Earnings

Middlesex Water Company Reports 2025 Earnings •Diluted earnings per share (“EPS”) of $2.

December 22, 2025 EX-99.1

Middlesex Water Company Appoints Robert Hoglund to Board of Directors

Middlesex Water Company Appoints Robert Hoglund to Board of Directors ISELIN, N.J., December 22, 2025 - Middlesex Water Company, (“Middlesex” or the “Company) (NASDAQ:MSEX), announced today the appointment of Robert Hoglund to its Board of Directors, effective January 1, 2026. Over his career, Mr. Hoglund has held several senior financial leadership roles, including more than 18 years as Chief Fin

December 22, 2025 EX-10.2

AMENDMENT TO EMPLOYMENT AGREEMENT Effective as of January 1, 2026

AMENDMENT TO EMPLOYMENT AGREEMENT Effective as of January 1, 2026 WHEREAS, the Company and the Executive entered into the Agreement, which contains certain provisions: and WHEREAS the parties desire to amend the Agreement to modify the provisions related to the Executive’s Employment Agreement in the event of: Amendment: 1.

December 22, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: December 22, 2025 MIDDLESEX WATER COMPANY (Exact name of registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: December 22, 2025 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of incorporation or organization) (Commission File Number) (I.R

December 22, 2025 EX-10.1

AMENDMENT TO EMPLOYMENT AGREEMENT Effective as of January 1, 2026

AMENDMENT TO EMPLOYMENT AGREEMENT Effective as of January 1, 2026 WHEREAS, the Company and the Executive entered into the Agreement, which contains certain provisions regarding Change in Control Severance Benefits; and WHEREAS the parties desire to amend the Agreement to modify the provisions related to the Executive’s Employment Agreement in the event of: Amendment: 1.

October 31, 2025 EX-10.62

Middlesex Water Company $30,000,000 First Mortgage Scheduled Interest Rate Bonds, Series 2025A, due October 15, 2055 Bond Purchase Agreement Dated as of October 15, 2025

Exhibit 10.62 Execution Version Middlesex Water Company $30,000,000 First Mortgage Scheduled Interest Rate Bonds, Series 2025A, due October 15, 2055 Bond Purchase Agreement Dated as of October 15, 2025 Exhibit 10.62 Table of Contents Section Heading Page Section 2. Sale and Purchase of Series 2025A Bonds 2 Section 3. Closing 2 Section 4. Conditions to Closing 2 Section 4.1. Representations and War

October 31, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 0-422 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 22-1114430 (State of incorporation) (IRS employer identification no.

October 31, 2025 EX-10.27(F)

AMENDMENT NO. 5 TO UNCOMMITTED LOAN AGREEMENT

Exhibit 10.27(f) AMENDMENT NO. 5 TO UNCOMMITTED LOAN AGREEMENT This Amendment No. 5 (this “Amendment”) dated as of September 2, 2025, is between Bank of America, N.A. (the “Bank”) and Middlesex Water Company, a New Jersey corporation, Tidewater Utilities, Inc., a Delaware corporation, White Marsh Environmental Systems, Inc., a Delaware corporation, Pinelands Water Company, a New Jersey corporation

October 31, 2025 EX-99.1

Middlesex Water Company Reports Third Quarter 2025 Earnings

Middlesex Water Company Reports Third Quarter 2025 Earnings •Diluted earnings per share (“EPS”) of $0.

October 31, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: October 31, 2025 MIDDLESEX WATER COMPANY (Exact name of registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: October 31, 2025 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of incorporation or organization) (Commission File Number) (I.R.

October 31, 2025 EX-10.17(E)

SEVENTH AMENDMENT TO PROMISSORY NOTE AND SUPPLEMENT (Revolving Term Loan)

Exhibit 10.17(e) Loan No. RX0024T6G SEVENTH AMENDMENT TO PROMISSORY NOTE AND SUPPLEMENT (Revolving Term Loan) THIS SEVENTH AMENDMENT TO PROMISSORY NOTE AND SUPPLEMENT (this “Amendment”), is entered into as of July 24, 2025, between TIDEWATER UTILITIES, INC., a Delaware corporation (the “Company”), and CoBANK, ACB, a federally chartered instrumentality of the United States (“CoBank”). BACKGROUND Th

July 31, 2025 EX-10.17(E)

Seventh Amendment to Promissory Note and Supplement, dated as of July 24, 2025, between Tidewater Utilities, Inc. and CoBank, ACB.

Exhibit 10.17(e) Loan No. RX0024T6G SEVENTH AMENDMENT TO PROMISSORY NOTE AND SUPPLEMENT (Revolving Term Loan) THIS SEVENTH AMENDMENT TO PROMISSORY NOTE AND SUPPLEMENT (this “Amendment”), is entered into as of July 24, 2025, between TIDEWATER UTILITIES, INC., a Delaware corporation (the “Company”), and CoBANK, ACB, a federally chartered instrumentality of the United States (“CoBank”). BACKGROUND Th

July 31, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: July 31, 2025 MIDDLESEX WATER COMPANY (Exact name of registrant as

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: July 31, 2025 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) File

July 31, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 0-422 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 22-1114430 (State of incorporation) (IRS employer identification no.

July 31, 2025 EX-99.1

Middlesex Water Company Reports Second Quarter 2025 Earnings

Middlesex Water Company Reports Second Quarter 2025 Earnings · Diluted earnings per share (“EPS”) of $0.

July 29, 2025 EX-FILING FEES

Table 1: Newly Registered and Carry Forward Securities

Calculation of Filing Fee Tables S-3 MIDDLESEX WATER CO Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial Effective Date Filing Fee Previously Paid in Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to be Paid Fees Previously Paid Carry Forward Securities Carry Forward Securities 1 Equity Common Stock 415(a)(6) 712,353 $ 59,326,818.

July 29, 2025 424B5

712,353 Shares Middlesex Water Company Investment Plan A Direct Share Purchase and Sale and Dividend Reinvestment Plan for Middlesex Water Company Common Stock, no Par Value

Filed Pursuant to Rule 424(b)(5) Registration Statement No. 333-287177 PROSPECTUS SUPPLEMENT (To Prospectus Dated May 12, 2025) 712,353 Shares Middlesex Water Company Investment Plan A Direct Share Purchase and Sale and Dividend Reinvestment Plan for Middlesex Water Company Common Stock, no Par Value This prospectus supplement relates to shares of common stock, no par value (“Middlesex Common Stoc

May 22, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report: May 22, 2025 MIDDLESEX WATER COMPANY (Exact Name of Registrant as Spe

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report: May 22, 2025 MIDDLESEX WATER COMPANY (Exact Name of Registrant as Specified in Charter) New Jersey 0-422 22-1114430 (State or Other Jurisdiction (Commission (I.

May 22, 2025 EX-99.1

Sustaining Life…with Every Drop ANNUAL SHAREHOLDERS MEETING May 20, 2025 NASDAQ: MSEX 1

Sustaining Life…with Every Drop ANNUAL SHAREHOLDERS MEETING May 20, 2025 NASDAQ: MSEX 1 President & Chief Executive Officer Nadine Leslie Vice President, General Counsel & Secretary Jay L.

May 12, 2025 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 12, 2025 MIDDLESEX WATER COMPANY (Exact Name of Registrant as Specified in Charter) New Jersey 0-422 22-1114430 (State or Other Jurisdiction (Commission (I.

May 12, 2025 424B5

Up to $110,000,000 of Common Stock

Filed Pursuant to Rule 424(b)(5) Registration Statement No. 333-287177 PROSPECTUS SUPPLEMENT (To Prospectus Dated May 12, 2025) Up to $110,000,000 of Common Stock This prospectus supplement relates to shares of common stock, no par value (“Middlesex Common Stock”), of Middlesex Water Company (“Middlesex” or the “Company”). Middlesex has entered into an ATM Equity Offering Sales Agreement with BofA

May 12, 2025 EX-FILING FEES

Table 1: Newly Registered and Carry Forward Securities

Calculation of Filing Fee Tables S-3 MIDDLESEX WATER CO Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial Effective Date Filing Fee Previously Paid in Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to be Paid 1 Equity Common Stock 457(r) 110,000,000 $ 110,000,000.

May 12, 2025 S-3ASR

As filed with the Securities and Exchange Commission on May 12, 2025

As filed with the Securities and Exchange Commission on May 12, 2025 Registration No.

May 12, 2025 EX-1.1

ATM Equity Offering Sales Agreement, dated May 12, 2025, by and among Middlesex Water Company and BofA Securities, Inc., Robert W. Baird & Co. Incorporated, and Janney Montgomery Scott LLC

Exhibit 1.1 Execution Version Middlesex Water Company Common Stock (no par value) ATM EQUITY OFFERINGSM SALES AGREEMENT May 12, 2025 BofA Securities, Inc. One Bryant Park New York, New York 10036 Robert W. Baird & Co. Incorporated 777 East Wisconsin Avenue, 18th Floor Milwaukee, Wisconsin 53202 Janney Montgomery Scott LLC 1717 Arch Street Philadelphia, PA 19103 Ladies and Gentlemen: Middlesex Wate

May 12, 2025 EX-FILING FEES

Calculation of Registration Fee.

Calculation of Filing Fee Tables S-3 MIDDLESEX WATER CO Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial Effective Date Filing Fee Previously Paid in Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to be Paid 1 Equity Common Stock, no par value per share Other 0.

May 1, 2025 EX-99.1

MIDDLESEX WATER COMPANY CONDENSED CONSOLIDATED STATEMENTS OF INCOME (In thousands except per share amounts)

Exhibit 99.1 Middlesex Water Company Reports First Quarter 2025 Earnings · Diluted earnings per share (“EPS”) of $0.53 · Completed the acquisition of Ocean View water utility assets in Delaware · Declared $0.34 common stock cash dividend · Invested $19 million in water and wastewater utility infrastructure ISELIN, N.J., May 1, 2025 - Middlesex Water Company (“Middlesex” or the “Company”) (NASDAQ:

May 1, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 0-422 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 22-1114430 (State of incorporation) (IRS employer identification no.

May 1, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: May 1, 2025 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) File N

April 10, 2025 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of The Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of The Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Defin

April 10, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of The Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of The Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Defin

April 10, 2025 ARS

2024 ANNUAL REPORT

2024 Annual Report 2024 ANNUAL REPORT SUSTAINING LIFE… with every dropMiddlesex Water Company (“Middlesex” or the “Company”) was incorporated as a water company in 1897 and owns and operates regulated water and wastewater utility systems primar- ily in New Jersey and Delaware.

March 11, 2025 10-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K/A Amendment No. 1

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K/A Amendment No.

March 4, 2025 8-K

Financial Statements and Exhibits, Changes in Registrant's Certifying Accountant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: February 28, 2025 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization)

March 4, 2025 EX-99.1

March 3, 2025

Exhibit 99.1 March 3, 2025 Securities and Exchange Commission 100 F Street, N.E. Washington, DC 20549 Dear Ladies and Gentlemen: We are the former independent registered public accounting firm for Middlesex Water Company (the “Company”). We have read the Company’s disclosure set forth in Item 4.01 “Changes in Registrant’s Certifying Accountant” of the Company’s Current Report on Form 8-K dated Feb

February 28, 2025 EX-21

Middlesex Water Company Subsidiaries.

Exhibit 21 Middlesex Water Company Subsidiaries Jurisdiction of Organization Tidewater Utilities, Inc. Delaware Pinelands Water Company New Jersey Pinelands Wastewater Company New Jersey Utility Service Affiliates (Perth Amboy) Inc. New Jersey Utility Service Affiliates, Inc. New Jersey Twin Lakes Utilities, Inc. Pennsylvania

February 28, 2025 EX-10.26G

Amendment to Loan Documents, dated January 24, 2025, between the Company, Pinelands Wastewater Company, Pinelands Water Company, Tidewater Utilities, Inc., Utility Service Affiliates (Perth Amboy) Inc., Utility Service Affiliates Inc. and While Marsh Environmental Systems, Inc., and PNC Bank, N.A.

Exhibit 10.26(g) January 24, 2025 MIDDLESEX WATER COMPANY PINELANDS WASTEWATER COMPANY PINELANDS WATER COMPANY WHITE MARSH ENVIRONMENTAL SYSTEMS, INC. 485C US HIGHWAY 1 S, STE 400 ISELIN, NEW JERSEY 08830-3037 TIDEWATER UTILITIES, INC. PO BOX 150 ISELIN, NEW JERSEY 08830-0452 UTILITY SERVICE AFFILIATES INC. UTILITY SERVICE AFFILIATES (PERTH AMBOY) INC. 1500 RONSON RD ISELIN, NEW JERSEY 08830-3049

February 28, 2025 EX-10.27E

Amendment No. 4 ($60,000,000) to Uncommitted Loan Agreement, dated January 24, 2025, between the Company, Tidewater Utilities, Inc., White Marsh Environmental Systems, Inc., Pinelands Water Company, Pinelands Wastewater Company, Utility Service Affiliates, Inc., Utility Service Affiliates (Perth Amboy) Inc., and Bank of America, N.A.

Exhibit 10.27 AMENDMENT NO. 4 TO UNCOMMITTED LOAN AGREEMENT This Amendment No. 4 (this “Amendment”) dated as of January 24, 2025, is between Bank of America, N.A. (the “Bank”) and Middlesex Water Company, a New Jersey corporation, Tidewater Utilities, Inc., a Delaware corporation, White Marsh Environmental Systems, Inc., a Delaware corporation, Pinelands Water Company, a New Jersey corporation, Pi

February 28, 2025 EX-99.1

Middlesex Water Company Reports 2024 Financial Results

Exhibit 99.1 Middlesex Water Company Reports 2024 Financial Results · Diluted earnings per share (“EPS”) of $2.47 for 2024, compared to 2023 earnings of $1.76 · Invested $75 million in capital expenditures in 2024 to upgrade, replace and enhance the resiliency of its water and wastewater utility infrastructure · Utility infrastructure investment of $387 million planned from 2025 through 2027 ISELI

February 28, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: February 28, 2025 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization)

February 28, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K (Mark One) ☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 0-422 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 22-1114430 (State of Incorporation) (IRS employer identification no.

February 5, 2025 EX-24

EX-24

POWER OF ATTORNEY The undersigned, BlackRock, Inc., a corporation duly organized under the laws of the State of Delaware, United States (the "Company"), does hereby make, constitute and appoint each of Eric Andruczyk, Richard Cundiff, R. Andrew Dickson, III, Spencer Fleming, Laura Hildner, David Maryles, Christopher Meade, Charles Park, James Raby, Daniel Riemer, David Rothenberg and Brenda Schulz

February 5, 2025 EX-99

EX-99

EX-99 3 ITEM7.txt EXHIBIT 99: ITEM 7 BlackRock Life Limited BlackRock Advisors, LLC Aperio Group, LLC BlackRock (Netherlands) B.V. BlackRock Fund Advisors* BlackRock Institutional Trust Company, National Association BlackRock Asset Management Ireland Limited BlackRock Financial Management, Inc. BlackRock Asset Management Schweiz AG BlackRock Investment Management, LLC BlackRock Investment Manageme

January 31, 2025 EX-99.1

Exhibit 99.1 - Joint Filing Agreement

Exhibit 99.1 Exhibit 99.1 - Joint Filing Agreement The undersigned hereby agree that they are filing this statement jointly pursuant to Rule 13d-1(k)(1). Each of them is responsible for the timely filing of such Schedule 13G and any amendments thereto, and for the completeness and accuracy of the information concerning such person contained therein; but none of them is responsible for the complete

November 26, 2024 EX-99.4

MIDDLESEX WATER ANNOUNCES RETIREMENT OF G. CHRISTIAN ANDREASEN, VICE PRESIDENT, ENTERPRISE ENGINEERING

Exhibit 99.4 MIDDLESEX WATER ANNOUNCES RETIREMENT OF G. CHRISTIAN ANDREASEN, VICE PRESIDENT, ENTERPRISE ENGINEERING Iselin, NJ (November 26, 2024) - Middlesex Water Company (the “Company” or “Middlesex”), (Nasdaq:MSEX), a provider of water and wastewater and related services primarily in New Jersey and Delaware, today announced that G. Christian Andreasen, Jr., P.E., Vice President, Enterprise Eng

November 26, 2024 EX-99.2

EMPLOYMENT AGREEMENT

EXHIBIT 99.2 EMPLOYMENT AGREEMENT THIS EMPLOYMENT AGREEMENT (the “Agreement”) is entered into by and between Gregory Sorensen(“Executive”), and Middlesex Water Company, a corporation organized and existing under the laws of the State of New Jersey (the “Company”) as of the 16th day of December 2024 (“Effective Date”). WHEREAS Middlesex Water Company wishes to enter into an Employment Agreement to

November 26, 2024 EX-99.3

CHANGE IN CONTROL AGREEMENT

EXHIBIT 99.3 CHANGE IN CONTROL AGREEMENT This Change in Control Termination Agreement (the “CIC Agreement”) is entered into as of December 16, 2024, between Middlesex Water Company (the “Company”), a New Jersey corporation, and Gregory Sorensen (referred to as “You” in this CIC Agreement). Recitals A. The Company considers it essential to the best interests of its shareholders to foster the contin

November 26, 2024 EX-99.1

MIDDLESEX WATER NAMES GREGORY SORENSEN VICE PRESIDENT AND CHIEF OPERATING OFFICER

Exhibit 99.1 MIDDLESEX WATER NAMES GREGORY SORENSEN VICE PRESIDENT AND CHIEF OPERATING OFFICER Iselin, NJ (November 26, 2024) - Middlesex Water Company (Nasdaq:MSEX), a provider of water and wastewater and related services primarily in New Jersey and Delaware, today announced that Gregory Sorensen has been named as its Vice President and Chief Operating Officer, effective December 16, 2024, as par

November 26, 2024 8-K

Financial Statements and Exhibits, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: November 26, 2024 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) new jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization)

November 14, 2024 SC 13G

MSEX / Middlesex Water Company / T. Rowe Price Investment Management, Inc. Passive Investment

SC 13G 1 msex13gsep24.txt UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. ) MIDDLESEX WATER CO (Name of Issuer) COMMON STOCK (Title of Class of Securities) 596680108 (CUSIP NUMBER) September 30, 2024 (Date of Event which Requires Filing of Statement) Check the appropriate box to designate the Rule pursuan

November 5, 2024 EX-10.1

Change in Control Termination Agreement, dated as of Novmeber 1, 2024, between the Company and Jay L. Kooper, filed as Exhibit 10.1 of the Company’s Current Report on Form 8-K dated November 5, 2024.

Exhibit 10.1 CHANGE IN CONTROL AGREEMENT This Change in Control Termination Agreement (the “CIC Agreement”) is entered into as of November 1, 2024, between Middlesex Water Company (the “Company”), a New Jersey corporation, and Jay Kooper (referred to as “You” in this CIC Agreement). Recitals A. The Company considers it essential to the best interests of its shareholders to foster the continuous em

November 5, 2024 EX-10.2

Change in Control Termination Agreement, dated as of November 1, 2024, between the Company and Lorrie B. Ginegaw, filed as Exhibit 10.2 of the Company’s Current Report on Form 8-K dated November 5, 2024.

Exhibit 10.2 CHANGE IN CONTROL AGREEMENT This Change in Control Termination Agreement (the “CIC Agreement”) is entered into as of November 1, 2024, between Middlesex Water Company (the “Company”), a New Jersey corporation, and Lorrie Ginegaw (referred to as “You” in this CIC Agreement). Recitals A. The Company considers it essential to the best interests of its shareholders to foster the continuou

November 5, 2024 EX-10.5

Change in Control Termination Agreement, dated as of November 1, 2024 between the Company and Robert J. Capko, filed as Exhibit 10.5 of the Company’s Current Report on Form 8-K dated November 5, 2024.

Exhibit 10.5 CHANGE IN CONTROL AGREEMENT This Change in Control Termination Agreement (the “CIC Agreement”) is entered into as of November 1, 2024, between Middlesex Water Company (the “Company”), a New Jersey corporation, and Robert Capko (referred to as “You” in this CIC Agreement). Recitals A. The Company considers it essential to the best interests of its shareholders to foster the continuous

November 5, 2024 EX-10.4

Change in Control Termination Agreement, dated as of November 1, 2024, between the Company and Georgia M. Simpson, filed as Exhibit 10.4 of the Company’s Current Report on Form 8-K dated November 5, 2024.

Exhibit 10.4 CHANGE IN CONTROL AGREEMENT This Change in Control Termination Agreement (the “CIC Agreement”) is entered into as of November 1, 2024, between Middlesex Water Company (the “Company”), a New Jersey corporation, and Georgia Simpson (referred to as “You” in this CIC Agreement). Recitals A. The Company considers it essential to the best interests of its shareholders to foster the continuo

November 5, 2024 EX-10.3

Change in Control Termination Agreement, dated as of November 1, 2024, between the Company and Robert K. Fullagar, filed as Exhibit 10.3 of the Company’s Current Report on Form 8-K dated November 5, 2024.

Exhibit 10.3 CHANGE IN CONTROL AGREEMENT This Change in Control Termination Agreement (the “CIC Agreement”) is entered into as of November 1, 2024, between Middlesex Water Company (the “Company”), a New Jersey corporation, and Robert Fullagar (referred to as “You” in this CIC Agreement). Recitals A. The Company considers it essential to the best interests of its shareholders to foster the continuo

November 5, 2024 EX-10.6

Change in Control Termination Agreement, dated as of November 1, 2024, between the Company and Nadine Leslie, filed as Exhibit 10.6 of the Company’s Current Report on Form 8-K dated November 5, 2024.

Exhibit 10.6 AMENDMENT TO CHANGE IN CONTROL AGREEMENT BETWEEN MIDDLESEX WATER COMPANY AND NADINE DUCHEMIN-LESLIE WHEREAS, the Company and the Executive entered into the Agreement, which contains certain provisions regarding Change in Control Severance Benefits; and WHEREAS the parties desire to amend the Agreement to modify the provisions related to the Executive’s entitlements in the event of a C

November 5, 2024 8-K

Financial Statements and Exhibits, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: November 5, 2024 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 000-00422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organizatio

October 31, 2024 EX-99.1

MIDDLESEX WATER ANNOUNCES THIRD QUARTER 2024 FINANCIAL RESULTS

Exhibit 99.1 MIDDLESEX WATER ANNOUNCES THIRD QUARTER 2024 FINANCIAL RESULTS Ø Diluted earnings per share of $0.80 for the quarter, an increase of 42.9% in comparison to the prior year Ø Common dividend increased by 4.62%. Iselin, NJ, (October 31, 2024) - Middlesex Water Company (“Middlesex” or the “Company”) (NASDAQ:MSEX) a provider of water and wastewater services, today announced third quarter f

October 31, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: October 31, 2024 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) F

October 31, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 0-422 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 22-1114430 (State of incorporation) (IRS employer identification no.

October 31, 2024 EX-10.59

Financing Agreement (Lead and Copper Rule Service Lines Field Verifications Project), dated September 27, 2024, between the Delaware Drinking Water State Revolving Fund, acting by and through the Delaware Department of Health and Social Services, Division of Public Health and Tidewater Utilities, Inc, filed as Exhibit 10.59 of the Company’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2024.

Exhibit 10.59 TIDEWATER UTILITIES, INC. $2,246,769 GENERAL OBLIGATION BOND (LEAD AND COPPER RULE SERVICE LINES (LSLR) FIELD VERIFICATIONS PROJECT) SERIES 2024E-DWSRF FINANCING AGREEMENT BETWEEN TIDEWATER UTILITIES, INC. AND DELAWARE DRINKING WATER STATE REVOLVING FUND, ACTING BY AND THROUGH THE DELAWARE DEPARTMENT OF HEALTH AND SOCIAL SERVICES, DIVISION OF PUBLIC HEALTH Loan No. 28000006 Exhibit 1

October 25, 2024 EX-99.1

EX-99.1

EX-99.1 2 ex993.txt JOINT FILING AGREEMENT Exhibit 99.1 EXHIBIT 99.1 - JOINT FILING AGREEMENT The undersigned hereby agree that they are filing this statement jointly pursuant to Rule 13d-1(k)(1). Each of them is responsible for the timely filing of such Schedule 13G and any amendments thereto, and for the completeness and accuracy of the information concerning such person contained therein; but n

October 25, 2024 SC 13G

MSEX / Middlesex Water Company / FIRST TRUST PORTFOLIOS LP - SCHEDULE 13G Passive Investment

SC 13G 1 sc13g3.txt SCHEDULE 13G UNITED STATES* SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Middlesex Water Company - (Name of Issuer) Common - (Title of Class of Securities) 596680108 - (CUSIP Number) September 30, 2024 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to desig

October 24, 2024 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: October 24, 2024 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) F

October 24, 2024 EX-99.1

Middlesex Water Company Increases Common Dividend by 4.62% 52 Years of Consecutive Dividend Increases

Exhibit 99.1 FOR IMMEDIATE RELEASE Middlesex Water Company Increases Common Dividend by 4.62% 52 Years of Consecutive Dividend Increases ISELIN, N.J., October 24, 2024– Middlesex Water Company (NASDAQ:MSEX) announced today that its Board of Directors has declared a quarterly cash dividend of $0.34 per share on its common stock, a 4.62% increase from the $0.325 per share dividend last declared in J

October 9, 2024 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: October 9, 2024 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) Fi

October 9, 2024 EX-99.1

MIDDLESEX WATER COMPANY ANNOUNCES RETIREMENT OF BERNADETTE SOHLER, VP OF CORPORATE AFFAIRS

MIDDLESEX WATER COMPANY ANNOUNCES RETIREMENT OF BERNADETTE SOHLER, VP OF CORPORATE AFFAIRS ISELIN, N.

August 30, 2024 8-K

Other Events, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: August 30, 2024 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) new jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) Fi

August 30, 2024 EX-99.1

TIDEWATER UTILITIES FILES FOR RATE ADJUSTMENT First Request for Change in Rates in over a Decade Focused on Upgrades and System Resiliency

Exhibit 99.1 FOR IMMEDIATE RELEASE TIDEWATER UTILITIES FILES FOR RATE ADJUSTMENT First Request for Change in Rates in over a Decade Focused on Upgrades and System Resiliency DOVER, DELAWARE – August 30, 2024 – Tidewater Utilities, Inc. (“Tidewater” or the “Company”), a wholly owned subsidiary of Middlesex Water Company (Nasdaq:MSEX) filed a request today with the Delaware Public Service Commission

August 2, 2024 EX-99.1

EX-99.1

EX-99.1 2 ex993.txt JOINT FILING AGREEMENT Exhibit 99.1 EXHIBIT 99.1 - JOINT FILING AGREEMENT The undersigned hereby agree that they are filing this statement jointly pursuant to Rule 13d-1(k)(1). Each of them is responsible for the timely filing of such Schedule 13G and any amendments thereto, and for the completeness and accuracy of the information concerning such person contained therein; but n

August 2, 2024 SC 13G/A

MSEX / Middlesex Water Company / FIRST TRUST PORTFOLIOS LP - AMENDED SCHEDULE 13G Passive Investment

UNITED STATES* SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* Middlesex Water Company - (Name of Issuer) Common - (Title of Class of Securities) 596680108 - (CUSIP Number) June 30, 2024 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this

July 31, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: July 31, 2024 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) File

July 31, 2024 EX-10.58

Financing Agreement (DelDOT – Lochmeath), dated May 17, 2024, between the Delaware Drinking Water State Revolving Fund, acting by and through the Delaware Department of Health and Social Services, Division of Public Health and Tidewater Utilities, Inc; filed as Exhibit 10.58 of the Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2024.

Exhibit 10.58 TIDEWATER UTILITIES, INC. $767,500 GENERAL OBLIGATION BOND (DELDOT - LOCHMEATH TO PUNCHEON RUN MAIN RELOCATIONS PROJECT) SERIES 2024C-DWSRF FINANCING AGREEMENT BETWEEN TIDEWATER UTILITIES, INC. AND DELAWARE DRINKING WATER STATE REVOLVING FUND, ACTING BY AND THROUGH THE DELAWARE DEPARTMENT OF HEALTH AND SOCIAL SERVICES, DIVISION OF PUBLIC HEALTH Loan No. 22000040 Exhibit 10.58 TABLE O

July 31, 2024 EX-99.1

MIDDLESEX WATER ANNOUNCES SECOND QUARTER 2024 RESULTS

Exhibit 99.1 MIDDLESEX WATER ANNOUNCES SECOND QUARTER 2024 RESULTS · Second Quarter 2024 Net Income was $10.5 million, as compared to $9.9 million in 2023, an increase of 6.5%. · Second Quarter 2024 Revenues were $49.1 million, as compared to $42.8 million in 2023, an increase of 14.8%. · Dividend of $0.325 per share of common stock payable in September 2024 Iselin, NJ, (July 31, 2024) - Middlesex

July 31, 2024 EX-10.57

Financing Agreement (Bethany Bay Project), dated May 17, 2024, between the Delaware Drinking Water State Revolving Fund, acting by and through the Delaware Department of Health and Social Services, Division of Public Health and Tidewater Utilities, Inc, filed as Exhibit 10.57 of the Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2024.

Exhibit 10.57 TIDEWATER UTILITIES, INC. $2,610,000 GENERAL OBLIGATION BOND (BETHANY BAY WATER TREATMENT FACILITY PROJECT) SERIES 2024B-DWSRF FINANCING AGREEMENT BETWEEN TIDEWATER UTILITIES, INC. AND DELAWARE DRINKING WATER STATE REVOLVING FUND, ACTING BY AND THROUGH THE DELAWARE DEPARTMENT OF HEALTH AND SOCIAL SERVICES, DIVISION OF PUBLIC HEALTH Loan No. 22000038 Exhibit 10.57 TABLE OF CONTENTS PA

July 31, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 0-422 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 22-1114430 (State of incorporation) (IRS employer identification no.

July 31, 2024 EX-10.56

Financing Agreement (Kendale Road Project), dated May 17, 2024, between the Delaware Drinking Water State Revolving Fund, acting by and through the Delaware Department of Health and Social Services, Division of Public Health and Tidewater Utilities, Inc., filed as Exhibit 10.56 of the Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2024.

Exhibit 10.56 TIDEWATER UTILITIES, INC. $1,164,400 GENERAL OBLIGATION BOND (KENDALE ROAD INTERCONNECTION PROJECT) SERIES 2024D-DWSRF FINANCING AGREEMENT BETWEEN TIDEWATER UTILITIES, INC. AND DELAWARE DRINKING WATER STATE REVOLVING FUND, ACTING BY AND THROUGH THE DELAWARE DEPARTMENT OF HEALTH AND SOCIAL SERVICES, DIVISION OF PUBLIC HEALTH Loan No. 22000041 Exhibit 10.56 TABLE OF CONTENTS PAGE ARTIC

July 31, 2024 EX-10.55

Financing Agreement (Minos Conaway Project), dated May 17, 2024, between the Delaware Drinking Water State Revolving Fund, acting by and through the Delaware Department of Health and Social Services, Division of Public Health and Tidewater Utilities, Inc, filed as Exhibit 10.55 of the Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2024.

Exhibit 10.55 TIDEWATER UTILITIES, INC. $1,011,700 GENERAL OBLIGATION BOND (DELDOT - RT 1 - MINOS CONAWAY MAIN REPLACEMENTS PROJECT) SERIES 2024A-DWSRF FINANCING AGREEMENT BETWEEN TIDEWATER UTILITIES, INC. AND DELAWARE DRINKING WATER STATE REVOLVING FUND, ACTING BY AND THROUGH THE DELAWARE DEPARTMENT OF HEALTH AND SOCIAL SERVICES, DIVISION OF PUBLIC HEALTH Loan No. 22000039 Exhibit 10.55 TABLE OF

July 24, 2024 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: July 24, 2024 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) File

July 24, 2024 EX-99.1

Middlesex Water Company Declares Quarterly Cash Dividend

Exhibit 99.1 FOR IMMEDIATE RELEASE Middlesex Water Company Declares Quarterly Cash Dividend ISELIN, N.J., July 24, 2024 – Middlesex Water Company (NASDAQ:MSEX) has announced that its Board of Directors has declared a cash dividend of $0.325 per share on its common stock, payable September 3, 2024 to shareholders of record as of August 15, 2024. Middlesex Water Company has paid cash dividends in va

June 10, 2024 EX-99.2

EMPLOYMENT AGREEMENT

Exhibit 99.2 EMPLOYMENT AGREEMENT THIS EMPLOYMENT AGREEMENT (the “Agreement”) is entered into by and between Mohammed Ghali Zerhouni (“Executive”), and Middlesex Water Company, a corporation organized and existing under the laws of the State of New Jersey (the “Company”) as of the 24th day of June 2024 (“Effective Date”). WHEREAS Middlesex Water Company wishes to enter into an Employment Agreement

June 10, 2024 EX-99.1

MIDDLESEX WATER COMPANY NAMES NEW CHIEF FINANCIAL OFFICER

Exhibit 99.1 MIDDLESEX WATER COMPANY NAMES NEW CHIEF FINANCIAL OFFICER Iselin, NJ (June 10, 2024) - Middlesex Water Company (NASDAQ: MSEX) has named Mohammed G. (Rally) Zerhouni as its new Senior Vice President, Chief Financial Officer and Treasurer effective June 24, 2024, as part of its ongoing strategic succession planning efforts. Zerhouni joins Middlesex following a comprehensive search for a

June 10, 2024 8-K

Financial Statements and Exhibits, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: June 10, 2024 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) File

June 10, 2024 EX-99.3

CHANGE IN CONTROL AGREEMENT

Exhibit 99.3 CHANGE IN CONTROL AGREEMENT This Change in Control Termination Agreement (the “CIC Agreement”) is entered into as of June 24, 2024, between Middlesex Water Company (the “Company”), a New Jersey corporation, and Mohammed Ghali Zerhouni (referred to as “You” in this CIC Agreement). Recitals A. The Company considers it essential to the best interests of its shareholders to foster the con

May 22, 2024 8-K

Financial Statements and Exhibits, Other Events, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: May 22, 2024 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) new jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) File

May 22, 2024 EX-99.1

ANNUAL MEETING OF SHAREHOLDERS NASDAQ:MSEX MAY 21, 2024 Dennis W. Doll Chairman of the Board Nadine Leslie President & CEO A. Bruce O’Connor Sr. Vice President, Treasurer & CFO Our Speakers Jay L. Kooper Vice President, General Counsel & Secretary Ro

Exhibit 99.1 ANNUAL MEETING OF SHAREHOLDERS NASDAQ:MSEX MAY 21, 2024 Dennis W. Doll Chairman of the Board Nadine Leslie President & CEO A. Bruce O’Connor Sr. Vice President, Treasurer & CFO Our Speakers Jay L. Kooper Vice President, General Counsel & Secretary Robert J. Capko Principal Accounting Officer 2 2 Forward Looking Statement As an introduction to the information we will be discussing, ple

May 22, 2024 EX-99.2

Middlesex Water HOLDS ANNUAL SHAREHOLDERs MEETING

Exhibit 99.2 Middlesex Water HOLDS ANNUAL SHAREHOLDERs MEETING ISELIN, NJ, (May 22, 2024) Middlesex Water Company (NASDAQ:MSEX), a provider of water and wastewater and related services held its Annual Meeting of Shareholders exclusively online on May 21, 2024 at which shareholders re-elected Kim C. Hanemann and Ann L. Noble and elected Nadine Leslie (Class I Directors) each to a three-year term an

May 8, 2024 EX-99.1

MIDDLESEX WATER ANNOUNCES FIRST QUARTER 2024 RESULTS

Exhibit 99.1 MIDDLESEX WATER ANNOUNCES FIRST QUARTER 2024 RESULTS HIGHLIGHTS · First Quarter 2024 Net Income was $10.7 million, as compared to $5.9 million in 2023, an increase of 82.1% · First Quarter 2024 Diluted Earnings Per Share were $0.59, as compared to $0.33 in 2023, an increase of 78.8% · First Quarter 2024 Revenues were $40.5 million, as compared to $38.2 million in 2023, an increase of

May 8, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 0-422 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 22-1114430 (State of incorporation) (IRS employer identification no.

May 8, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: May 8, 2024 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) File N

April 25, 2024 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: April 25, 2024 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) Fil

April 25, 2024 EX-99.1

Middlesex Water Company Declares Quarterly Cash Dividend

Exhibit 99.1 FOR IMMEDIATE RELEASE Middlesex Water Company Declares Quarterly Cash Dividend ISELIN, N.J., April 25, 2024 – Middlesex Water Company (NASDAQ:MSEX) has announced that its Board of Directors has declared a cash dividend of $0.325 per share on its common stock, payable June 3, 2024 to shareholders of record as of May 15, 2024. Middlesex Water Company has paid cash dividends in varying a

April 11, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of The Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of The Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Defin

March 1, 2024 EX-21

Middlesex Water Company Subsidiaries.

Exhibit 21 Middlesex Water Company Subsidiaries Jurisdiction of Organization Tidewater Utilities, Inc. Delaware Pinelands Water Company New Jersey Pinelands Wastewater Company New Jersey Utility Service Affiliates (Perth Amboy) Inc. New Jersey Utility Service Affiliates, Inc. New Jersey Twin Lakes Utilities, Inc. Pennsylvania

March 1, 2024 EX-10.26(F)

Amendment to Loan Documents, dated January 29, 2024, between the Company, Pinelands Wastewater Company, Pinelands Water Company, Tidewater Utilities, Inc., Utility Service Affiliates (Perth Amboy) Inc., Utility Service Affiliates Inc. and While Marsh Environmental Systems, Inc., and PNC Bank, N.A., filed as Exhibit 10.26(f) of the Company’s Annual Report on Form 10-K for the year ended December 31, 2023.

Exhibit 10.26(f) ‌January 29, 2024 ‌MIDDLESEX WATER COMPANY 485C US Highway 1 South Suite 400 Iselin, New Jersey 08830-3037 WHITE MARSH ENVIRONMENTAL SYSTEMS, INC. 485C US Highway 1 South Suite 400 Iselin, New Jersey 08830-3037 TIDEWATER UTILITIES, INC. 1500 Ronson Road, PO Box 1500 Iselin, New Jersey 08830-0452 UTILITY SERVICE AFFILIATES INC. 1500 Ronson Road, PO Box 1500 Iselin, New Jersey 08830

March 1, 2024 EX-10.6

Water Purchase Contract, dated as of October 24, 2023, between the Company and the New Jersey Water Supply Authority.

Exhibit 10.6 WATER PURCHASE CONTRACT RBS-2B THIS WATER PURCHASE CONTRACT (Contract) dated October 24, 2023 is made by and between the New Jersey Water Supply Authority (the "Authority"), an instrumentality of the State of New Jersey created pursuant to the provisions of the New Jersey Water Supply Authority Act, P.L. 1981, C. 293, as amended, N.J.S.A. 58:lB-1 et seq. and Middlesex Water Company ("

March 1, 2024 NT 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING Commission File Number: 0-422

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING Commission File Number: 0-422 (Check one): [X] Form 10-K [] Form 20-F [] Form 11-K [] Form 10-Q [] Form 10-D [] Form N-CEN [] Form N-CSR For Period Ended: December 31, 2023 [] Transition Report on Form 10-K [] Transition Report on Form 20-F [] Transition Report on Form 11-K [] Transition

March 1, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K (Mark One) ☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 0-422 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 22-1114430 (State of Incorporation) (IRS employer identification no.

March 1, 2024 EX-19

Middlesex Water Company Insider Trading Policy, filed as Exhibit 19 of the Company’s Annual Report on Form 10-K for the year ended December 31, 2023.

Exhibit 19 MIDDLESEX WATER COMPANY INSIDER TRADING POLICY I. PURPOSE Middlesex Water Company (the “Company”) hereby adopts this Insider Trading Policy (“Policy”) to assist its directors, officers and employees in compliance with insider trading laws and regulations and to further prevent an appearance of improper insider trading. II. SCOPE A. This Policy applies to all directors, officers and empl

March 1, 2024 EX-97

Middlesex Water Company Incentive-Based Award Clawback Policy, filed as Exhibit 97 of the Company’s Annual Report on Form 10-K for the year ended December 31, 2023.

Exhibit 97 Middlesex Water Company Incentive-Based Award Clawback Policy Incentive-based awards are subject to the Company’s “clawback” policy.

March 1, 2024 EX-10.27(D)

Amendment No. 3 ($60,000,000) to Uncommitted Loan Agreement, dated January 25, 2024, between the Company, Tidewater Utilities, Inc., White Marsh Environmental Systems, Inc., Pinelands Water Company, Pinelands Wastewater Company, Utility Service Affiliates, Inc., Utility Service Affiliates (Perth Amboy) Inc., and Bank of America, N.A., filed as Exhibit 10.27(d) of the Company’s Annual Report on Form 10-K for the year ended December 31, 2023.

Exhibit 10.27(d) AMENDMENT NO. 3 TO UNCOMMITTED LOAN AGREEMENT This Amendment No. 3 (this “Amendment”) dated as of January 25, 2024, is between Bank of America, N.A. (the “Bank”) and Middlesex Water Company, a New Jersey corporation, Tidewater Utilities, Inc., a Delaware corporation, White Marsh Environmental Systems, Inc., a Delaware corporation, Pinelands Water Company, a New Jersey corporation,

February 29, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: February 29, 2024 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization)

February 29, 2024 EX-99.1

MIDDLESEX WATER ANNOUNCES 2023 YEAR END RESULTS

Exhibit 99.1 MIDDLESEX WATER ANNOUNCES 2023 YEAR END RESULTS ISELIN, NJ, (February 29, 2024) - Middlesex Water Company (“Middlesex” or the “Company”) (NASDAQ:MSEX) today announced financial results for the year ended December 31, 2023. 2023 OPERATING RESULTS Consolidated operating revenues increased to $166.3 million for the year ended December 31, 2023, up $3.8 million from 2022. factors affectin

February 16, 2024 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: February 16, 2024 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization)

February 13, 2024 SC 13G/A

MSEX / Middlesex Water Company / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv01460-middlesexwaterco.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 6)* Name of issuer: Middlesex Water Co Title of Class of Securities: Common Stock CUSIP Number: 596680108 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate box to designat

January 29, 2024 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: January 29, 2024 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) F

January 29, 2024 EX-99.1

Middlesex Water Company Declares Quarterly Cash Dividend

Exhibit 99.1 FOR IMMEDIATE RELEASE Middlesex Water Company Declares Quarterly Cash Dividend ISELIN, N.J., January 29, 2024 – Middlesex Water Company (NASDAQ:MSEX) announced today that its Board of Directors has declared a cash dividend of $0.325 per share on its common stock, payable March 1, 2024 to shareholders of record as of February 15, 2024. Middlesex Water Company has paid cash dividends in

January 23, 2024 8-K

Financial Statements and Exhibits, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: January 23, 2024 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) F

January 23, 2024 EX-99.2

EMPLOYMENT AGREEMENT

Exhibit 99.2 EMPLOYMENT AGREEMENT THIS EMPLOYMENT AGREEMENT (the “Agreement”) is entered into by and between Nadine Duchemin- Leslie (“Executive”), and Middlesex Water Company, a corporation organized and existing under the laws of the State of New Jersey (the “Company”) as of the 1st day of March, 2024. WHEREAS, the Board of Directors of Company (“Board of Directors or Board”) wishes to enter int

January 23, 2024 EX-99.3

CHANGE IN CONTROL AGREEMENT

Exhibit 99.3 CHANGE IN CONTROL AGREEMENT This Change in Control Termination Agreement (the “Agreement”) is entered into as of March 1, 2024, between Middlesex Water Company (the “Company”), a New Jersey corporation, and Nadine Duchemin-Leslie (referred to as “You” in this Agreement). Recitals A. The Company considers it essential to the best interests of its shareholders to foster the continuous e

January 23, 2024 EX-99.1

MIDDLESEX WATER COMPANY NAMES NEW PRESIDENT & CEO

Exhibit 99.1 MIDDLESEX WATER COMPANY NAMES NEW PRESIDENT & CEO Iselin, NJ (January 23, 2024) - Middlesex Water Company (NASDAQ: MSEX) has named Nadine Leslie as its new President & CEO effective March 1, 2024. Ms. Leslie joins Middlesex following a comprehensive search for a successor to outgoing President & CEO Dennis W. Doll, who will retire from the Company February 29, 2024. Ms. Leslie will al

January 23, 2024 EX-99.4

CONSULTING AGREEMENT

Exhibit 99.4 CONSULTING AGREEMENT This Consulting Agreement (the “Agreement”) is entered into and effective as of the 1st day of March 2024, by and between Dennis W. Doll (the “Consultant”) and Middlesex Water Company (the “Company”) (collectively, the “Parties”). WHEREAS, the Consultant is expected to serve as President & Chief Executive Officer (“CEO”) of the Company until his retirement on Febr

January 22, 2024 SC 13G/A

MSEX / Middlesex Water Company / STATE STREET CORP Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES EXCHANGE ACT OF 1934 EXIT FILING MIDDLESEX WATER CO (NAME OF ISSUER) COMMON STOCK (TITLE OF CLASS OF SECURITIES) 596680108 (CUSIP NUMBER) 12/31/2023 (DATE OF EVENT WHICH REQUIRES FILING OF THIS STATEMENT) CHECK THE APPROPRIATE BOX TO DESIGNATE THE RULE PURSUANT TO WHICH THIS SCHEDULE IS FILED:

January 19, 2024 SC 13G/A

MSEX / Middlesex Water Company / BlackRock Inc. Passive Investment

SC 13G/A 1 us5966801087011924.txt us5966801087011924.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 17) MIDDLESEX WATER COMPANY - (Name of Issuer) Common Stock - (Title of Class of Securities) 596680108 - (CUSIP Number) December 31, 2023 - (Date of Event Which Requires Filing of this Statement) Check the appropria

January 17, 2024 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: January 17, 2024 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) F

January 12, 2024 EX-99.1

EX-99.1

EX-99.1 2 ex993.txt JOINT FILING AGREEMENT Exhibit 99.1 EXHIBIT 99.1 - JOINT FILING AGREEMENT The undersigned hereby agree that they are filing this statement jointly pursuant to Rule 13d-1(k)(1). Each of them is responsible for the timely filing of such Schedule 13G and any amendments thereto, and for the completeness and accuracy of the information concerning such person contained therein; but n

January 12, 2024 SC 13G

MSEX / Middlesex Water Company / FIRST TRUST PORTFOLIOS LP - SCHEDULE 13G Passive Investment

SC 13G 1 sc13g3.txt SCHEDULE 13G UNITED STATES* SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Middlesex Water Company - (Name of Issuer) Common - (Title of Class of Securities) 596680108 - (CUSIP Number) December 31, 2023 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to design

November 9, 2023 EX-10.54

Multiple Advance Term Promissory Note, dated May 22, 2023, between Pinelands Wastewater Company and CoBank, ACB, filed as Exhibit 10.54 of the Company’s Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2023.

Exhibit 10.54 Loan No. 00147994T01 MULTIPLE ADVANCE TERM PROMISSORY NOTE THIS MULTIPLE ADVANCE TERM PROMISSORY NOTE (this "Promissory Note") to the Credit Agreement dated May 22, 2023. (such agreement, as may be amended, hereinafter referred to as the "Credit Agreement"), is entered into as of May 22, 2023. between COBANK, ACB, a federally-chartered instrumentality of the United States ("Lender")

November 9, 2023 EX-99.1

MIDDLESEX WATER ANNOUNCES THIRD QUARTER 2023 FINANCIAL RESULTS

Exhibit 99.1 MIDDLESEX WATER ANNOUNCES THIRD QUARTER 2023 FINANCIAL RESULTS Iselin, NJ, (November 9, 2023) - Middlesex Water Company (“Middlesex” or the “Company”) (NASDAQ:MSEX) a provider of water and wastewater services, today announced third quarter financial results. Third Quarter Results Revenues for the quarter ended September 30, 2023 decreased $1.0 million to $46.7 million, compared to the

November 9, 2023 EX-10.55

Settlement Agreement, dated as of August 28, 2023, between Middlesex Water Company and 3M Company, filed as Exhibit 10.55 of the Company’s Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2023.

Exhibit 10.55 CERTAIN INFORMATION IDENTIFIED IN THIS DOCUMENT, MARKED BY [*], HAS BEEN EXCLUDED FROM THE EXHIBIT BECAUSE IT IS BOTH (I) NOT MATERIAL AND (II) IS THE TYPE OF INFORMATION THE REGISTRANT TREATS AS PRIVATE AND CONFIDENTIAL SETTLEMENT AGREEMENT THIS SETTLEMENT AGREEMENT is entered into as of the 28th day of August 2023, by and between Plaintiff MWC (as defined below) and Defendant 3M (a

November 9, 2023 EX-10.17C

Promissory Note and Supplement, dated May 11, 2023, between Tidewater Utilities, Inc. and CoBank, ACB; Amendments to Combination Water Utility Real Estate Mortgage and Security Agreement, effective May 11, 2023, between Tidewater Utilities, Inc. and CoBank, ACB, filed as Exhibit 10.17(c) of the Company’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2023.

Exhibit 10.17(c) Loan No. RX0024T11 PROMISSORY NOTE AND SUPPLEMENT (Multiple Advance Term Loan) THIS PROMISSORY NOTE AND SUPPLEMENT (this “Promissory Note and Supplement”) is entered into as of May 11, 2023 between TIDEWATER UTILITIES, INC., a Delaware corporation (the “Company”), and CoBANK, ACB, a federally chartered instrumentality of the United States (“CoBank”), and supplements that certain M

November 9, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 0-422 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 22-1114430 (State of incorporation) (IRS employer identification no.

November 9, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: November 9, 2023 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) F

November 9, 2023 EX-10.53

Multiple Advance Term Promissory Note, dated May 22, 2023, between Pinelands Water Company and CoBank, ACB, filed as Exhibit 10.53 of the Company’s Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2023.

Exhibit 10.53 Loan No. 00148003T0I MULTIPLE ADVANCE TERM PROMISSORY NOTE THIS MULTIPLE ADVANCE TERM PROMISSORY NOTE (this "Promissory Note") to the Credit Agreement dated May 22, 2023 (such agreement, as may be amended, hereinafter referred to as the "Credit Agreement"), is entered into as of May 22, 2023 between COBANK, ACB, a federally-chartered instrumentality of the United States ("Lender") an

November 9, 2023 EX-10.17D

Sixth Amendment to Promissory Note and Supplement, dated as of May 11, 2023, between Tidewater Utilities, Inc. and CoBank, ACB, filed as Exhibit 10.17(d) of the Company’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2023.

Exhibit 10.17(d) Loan No. RX0024T6F SIXTH AMENDMENT TO PROMISSORY NOTE AND SUPPLEMENT (Revolving Term Loan) THIS SIXTH AMENDMENT TO PROMISSORY NOTE AND SUPPLEMENT (this “Amendment”), is entered into as of May 11, 2023, between TIDEWATER UTILITIES, INC., a Delaware corporation (the “Company”), and CoBANK, ACB, a federally chartered instrumentality of the United States (“CoBank”). BACKGROUND The Com

November 8, 2023 10-Q/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q/A Amendment No. 1

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q/A Amendment No.

November 8, 2023 10-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K/A Amendment No. 1

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K/A Amendment No.

November 8, 2023 10-Q/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q/A Amendment No.1

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q/A Amendment No.

November 2, 2023 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: November 2, 2023 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) F

October 20, 2023 EX-99.1

Middlesex Water Company Increases Common Dividend by 4.0% Marks 51st Consecutive Year of Dividend Increases

Exhibit 99.1 FOR IMMEDIATE RELEASE Middlesex Water Company Increases Common Dividend by 4.0% Marks 51st Consecutive Year of Dividend Increases ISELIN, N.J., October 20, 2023 – Middlesex Water Company (NASDAQ:MSEX) announced today that its Board of Directors has declared a cash dividend of $0.325 per share on its common stock, an increase of 4.0% from the $0.3125 per share dividend last declared in

October 20, 2023 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: October 20, 2023 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) F

September 1, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: September 1, 2023 MIDDLESEX WATER COMPANY (Exact name of registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: September 1, 2023 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization)

July 28, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: July 28, 2023 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) File

July 28, 2023 EX-99.1

MIDDLESEX WATER ANNOUNCES SECOND QUARTER 2023 FINANCIAL RESULTS

Exhibit 99.1 MIDDLESEX WATER ANNOUNCES SECOND QUARTER 2023 FINANCIAL RESULTS Ø Quarterly Operating Revenue up 7.9% Ø Net Income up 11.6% Ø Diluted Earnings Per Share up 10.0% Iselin, NJ, (July 28, 2023) - Middlesex Water Company (“Middlesex” or the “Company”) (NASDAQ:MSEX) a provider of water and wastewater services, today announced second quarter financial results. Second Quarter Results Revenues

July 28, 2023 EX-10.26E

Amendment to Loan Documents, dated June 15, 2023, between the Company, Pinelands Wastewater Company, Pinelands Water Company, Tidewater Utilities, Inc., Utility Service Affiliates (Perth Amboy) Inc., Utility Service Affiliates Inc. and While Marsh Environmental Systems, Inc., and PNC Bank, N.A, filed as Exhibit 10.26(e) of the Company’s Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2023.

Exhibit 10.26(e) Amendment to Loan Documents THIS AMENDMENT TO LOAN DOCUMENTS (this “Amendment”) is made as of June 15, 2023, by and between MIDDLESEX WATER COMPANY, PINELANDS WASTEWATER COMPANY, PINELANDS WATER COMPANY, TIDEWATER UTILITIES, INC., UTILITY SERVICE AFFILIATES (PERTH AMBOY) INC., UTILITY SERVICE AFFILIATES INC. and WHITE MARSH ENVIRONMENTAL SYSTEMS, INC. (individually and collectivel

July 28, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 0-422 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 22-1114430 (State of incorporation) (IRS employer identification no.

July 25, 2023 EX-FILING FEES

Calculation of Filing Fee Tables Form S-3 (Form Type) Middlesex Water Company. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities

Exhibit 107 Calculation of Filing Fee Tables Form S-3 (Form Type) Middlesex Water Company.

July 25, 2023 424B5

700,000 Shares Middlesex Water Company Investment Plan A Direct Share Purchase and Sale and Dividend Reinvestment Plan for Middlesex Water Company Common Stock, no Par Value

Filed Pursuant to Rule 424(b)(5) Registration Statement No. 333-266482 PROSPECTUS SUPPLEMENT (To Prospectus Dated August 3, 2022) 700,000 Shares Middlesex Water Company Investment Plan A Direct Share Purchase and Sale and Dividend Reinvestment Plan for Middlesex Water Company Common Stock, no Par Value This prospectus supplement relates to shares of common stock, no par value (“Middlesex Common St

July 20, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: July 20, 2023 MIDDLESEX WATER COMPANY (Exact name of registrant as

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: July 20, 2023 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) new jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) File

July 20, 2023 EX-99.1

Middlesex Water Company Declares Quarterly Cash Dividend

Exhibit 99.1 FOR IMMEDIATE RELEASE Middlesex Water Company Declares Quarterly Cash Dividend ISELIN, N.J., July 20, 2023 – Middlesex Water Company (NASDAQ:MSEX) announced today that its Board of Directors has declared a cash dividend of $0.3125 per share on its common stock, payable September 1, 2023 to shareholders of record as of August 11, 2023. Middlesex Water Company has paid cash dividends in

May 24, 2023 EX-99.1

TODAY’S SPEAKERS Dennis W. Doll Chairman, President & CEO 2 A. Bruce O’Connor Sr. Vice President, Treasurer and Chief Financial Officer Jay L. Kooper Vice President, General Counsel & Secretary Robert J. Capko Principal Accounting Officer FORWARD LOO

Exhibit 99.1 ANNUAL MEETING OF SHAREHOLDERS MAY 23, 2023 TODAY’S SPEAKERS Dennis W. Doll Chairman, President & CEO 2 A. Bruce O’Connor Sr. Vice President, Treasurer and Chief Financial Officer Jay L. Kooper Vice President, General Counsel & Secretary Robert J. Capko Principal Accounting Officer FORWARD LOOKING STATEMENT 3 As an introduction to the information we will be discussing, please be aware

May 24, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: May 24, 2023 MIDDLESEX WATER COMPANY (Exact name of registrant as s

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: May 24, 2023 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) new jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) File

May 24, 2023 EX-99.2

Middlesex Water REPORTS VOTING RESULTS FROM ITS 2023 ANNUAL SHAREHOLDERs MEETING

Exhibit 99.2 Middlesex Water REPORTS VOTING RESULTS FROM ITS 2023 ANNUAL SHAREHOLDERs MEETING ISELIN, NJ, (May 24, 2023) Middlesex Water Company (NASDAQ:MSEX), a provider of water and wastewater and related services held its Annual Meeting of Shareholders exclusively online on May 23, 2023 at which shareholders re-elected Joshua Bershad, M.D., James F. Cosgrove, Jr., and Vaughn L. McKoy (all Class

May 16, 2023 EX-99.1

Middlesex Water Company President and CEO Announces retirement Efforts to Identify New Chief Executive Underway

Exhibit 99.1 Middlesex Water Company President and CEO Announces retirement Efforts to Identify New Chief Executive Underway ISELIN, NJ (May 16, 2023) - Middlesex Water Company (NASDAQ:MSEX) President and Chief Executive Officer, Dennis W. Doll has announced a plan to retire upon turning age 65. Mr. Doll’s retirement is planned for the later of December 31, 2023 or, the date when a successor is du

May 16, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: May 16, 2023 MIDDLESEX WATER COMPANY (Exact name of registrant as s

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: May 16, 2023 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) File

May 15, 2023 EX-99.1

MIDDLESEX WATER FILES FOR RATE ADJUSTMENT

Exhibit 99.1 MIDDLESEX WATER FILES FOR RATE ADJUSTMENT ISELIN, N.J., May 15 2023- Middlesex Water Company (NASDAQ:MSEX) (Middlesex or the Company) today filed a petition with the New Jersey Board of Public Utilities (NJBPU) requesting an increase of approximately $33.9 million or 31.23% to its base rates in its Middlesex system. Middlesex is filing for new rates to recover prudently-incurred inves

May 15, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: May 15, 2023 MIDDLESEX WATER COMPANY (Exact name of registrant as s

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: May 15, 2023 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) File

May 1, 2023 EX-10.48

Bond Purchase Agreement, dated March 2, 2023, between New York Life Insurance Company and Affiliates and the Company (Series 2023A) filed as Exhibit 10.48 of the Company’s Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2023.

Exhibit 10.48 Execution Version Middlesex Water Company $40,000,000 First Mortgage Scheduled Interest Rate Bonds, Series 2023A, due March 2, 2043 Bond Purchase Agreement Dated as of March 2, 2023 Table of Contents Section Heading Page Section 1. Authorization of Series 2023A Bonds 1 Section 2. Sale and Purchase of Series 2023A Bonds 2 Section 3. Closing 2 Section 4. Conditions to Closing 2 Section

May 1, 2023 EX-99.1

MIDDLESEX WATER REPORTS FIRST QUARTER 2023 EARNINGS

Exhibit 99.1 MIDDLESEX WATER REPORTS FIRST QUARTER 2023 EARNINGS Iselin, NJ, (May 1, 2023) - Middlesex Water Company (“Middlesex” or the “Company”) (NASDAQ:MSEX) a provider of water and wastewater services, today reported first quarter financial results. First Quarter 2023 Results Quarterly consolidated operating revenues rose $2.0 million to $38.2 million compared to the same period in 2022. Reve

May 1, 2023 EX-10.51

Financing Agreement, dated April 5, 2023, between the Delaware Drinking Water State Revolving Fund, acting by and through the Delaware Department of Health and Social Services, Division of Public Health and Tidewater Utilities, Inc, filed as Exhibit 10.51 of the Company’s Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2023.

Exhibit 10.51 TIDEWATER UTILITIES, INC. $4,998,000 GENERAL OBLIGATION BOND (Angola Meadows Interconnection Project) SERIES 2023A-DWSRF FINANCING AGREEMENT BETWEEN TIDEWATER UTILITIES, INC. AND DELAWARE DRINKING WATER STATE REVOLVING FUND, ACTING BY AND THROUGH THE DELAWARE DEPARTMENT OF HEALTH AND SOCIAL SERVICES, DIVISION OF PUBLIC HEALTH Loan No. 22000034 TABLE OF CONTENTS PAGE ARTICLE I DEFINIT

May 1, 2023 EX-10.50

Financing Agreement, dated April 5, 2023, between the Delaware Drinking Water State Revolving Fund, acting by and through the Delaware Department of Health and Social Services, Division of Public Health and Tidewater Utilities, Inc, filed as Exhibit 10.50 of the Company’s Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2023.

Exhibit 10.50 TIDEWATER UTILITIES, INC. $3,302,000 GENERAL OBLIGATION BOND (DelDOT SR 24-Love Creek to Mulberry Knoll Project) SERIES 2023C-DWSRF FINANCING AGREEMENT BETWEEN TIDEWATER UTILITIES, INC. AND DELAWARE DRINKING WATER STATE REVOLVING FUND, ACTING BY AND THROUGH THE DELAWARE DEPARTMENT OF HEALTH AND SOCIAL SERVICES, DIVISION OF PUBLIC HEALTH Loan No. 22000036 TABLE OF CONTENTS PAGE ARTICL

May 1, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 0-422 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey (State of incorporation) 22-1114430 (IRS employer identification no.

May 1, 2023 EX-10.26C

Amendment to Loan Documents, dated March 17, 2023, between the Company, Pinelands Wastewater Company, Pinelands Water Company, Tidewater Utilities, Inc., Utility Service Affiliates (Perth Amboy) Inc., Utility Service Affiliates Inc. and While Marsh Environmental Systems, Inc., and PNC Bank, N.A. filed as Exhibit 10.26(c) of the Company’s Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2023.

Exhibit 10.26(c) Amended and Restated Revolving Line of Credit Note (Multi-Rate Options – SOFR) $68,000,000.00 March 17, 2023 FOR VALUE RECEIVED, MIDDLESEX WATER COMPANY, PINELANDS WASTEWATER COMPANY, PINELANDS WATER COMPANY, TIDEWATER UTILITIES, INC., UTILITY SERVICE AFFILIATES (PERTH AMBOY) INC., UTILITY SERVICE AFFILIATES INC., and WHITE MARSH ENVIRONMENTAL SYSTEMS, INC. (individually and colle

May 1, 2023 EX-10.26D

Amendment to Loan Documents, dated April 5, 2023, between the Company, Pinelands Wastewater Company, Pinelands Water Company, Tidewater Utilities, Inc., Utility Service Affiliates (Perth Amboy) Inc., Utility Service Affiliates Inc. and While Marsh Environmental Systems, Inc., and PNC Bank, N.A, filed as Exhibit 10.26(d) of the Company’s Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2023.

Exhibit 10.26(d) Amendment to Loan Documents THIS AMENDMENT TO LOAN DOCUMENTS (this “Amendment”) is made as of April 5, 2023 by and between MIDDLESEX WATER COMPANY, PINELANDS WASTEWATER COMPANY, PINELANDS WATER COMPANY, TIDEWATER UTILITIES, INC., UTILITY SERVICE AFFILIATES (PERTH AMBOY) INC., UTILITY SERVICE AFFILIATES INC., and WHITE MARSH ENVIRONMENTAL SYSTEMS, INC. (individually and collectivel

May 1, 2023 EX-10.49

Financing Agreement, dated April 5, 2023, between the Delaware Drinking Water State Revolving Fund, acting by and through the Delaware Department of Health and Social Services, Division of Public Health and Tidewater Utilities, Inc., filed as Exhibit 10.49 of the Company’s Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2023.

Exhibit 10.49 TIDEWATER UTILITIES, INC. $1,875,000 GENERAL OBLIGATION BOND (Dairy Farm Road Interconnection Project) SERIES 2023B-DWSRF FINANCING AGREEMENT BETWEEN TIDEWATER UTILITIES, INC. AND DELAWARE DRINKING WATER STATE REVOLVING FUND, ACTING BY AND THROUGH THE DELAWARE DEPARTMENT OF HEALTH AND SOCIAL SERVICES, DIVISION OF PUBLIC HEALTH Loan No. 22000035 -1- TABLE OF CONTENTS PAGE ARTICLE I DE

May 1, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: May 1, 2023 MIDDLESEX WATER COMPANY (Exact name of registrant as sp

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: May 1, 2023 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) File N

May 1, 2023 EX-10.12I

Change in Control Termination Agreement, dated as of April 28, 2023 between the Company and Robert J. Capko.

Exhibit 10.12(i) CHANGE IN CONTROL TERMINATION AGREEMENT This Change in Control Termination Agreement (the “Agreement”) is entered into as of April 28, 2023, between Middlesex Water Company, a New Jersey corporation, with its principal place of business located at 485C Route One South, Suite 400, Iselin, New Jersey 08830, (the “Company”), and Robert J. Capko, residing at 100 Possum Way, New Provid

April 28, 2023 EX-99.1

Middlesex Water Company Declares Quarterly Cash Dividend, Announces Annual Meeting of Shareholders

Exhibit 99.1 FOR IMMEDIATE RELEASE Middlesex Water Company Declares Quarterly Cash Dividend, Announces Annual Meeting of Shareholders ISELIN, N.J., April 28, 2023 – Middlesex Water Company (NASDAQ:MSEX) announced today that its Board of Directors has declared a cash dividend of $0.3125 per share on its common stock, payable June 1, 2023 to shareholders of record as of May 12, 2023. Middlesex Water

April 28, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: April 28, 2023 MIDDLESEX WATER COMPANY (Exact name of registrant as

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: April 28, 2023 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) Fil

April 10, 2023 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of The Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of The Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Defin

April 3, 2023 EX-99.1

Middlesex Water Company aPPOINTS Robert Capko PrINCIPAL ACCOUNTING OFFICER

Exhibit 99.1 Middlesex Water Company aPPOINTS Robert Capko PrINCIPAL ACCOUNTING OFFICER ISELIN, NJ (April 3, 2023) - Middlesex Water Company (NASDAQ:MSEX) has named Robert J. Capko, Principal Accounting Officer, effective April 1, 2023. Mr. Capko will continue to serve as Corporate Controller of Middlesex Water and its subsidiaries including the Pinelands Water and Wastewater Companies, Utility Se

April 3, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: April 3, 2023 MIDDLESEX WATER COMPANY (Exact name of registrant as

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: April 3, 2023 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) File

February 24, 2023 EX-21

Middlesex Water Company Subsidiaries.

Exhibit 21 Middlesex Water Company Subsidiaries Jurisdiction of Organization Tidewater Utilities, Inc. Delaware Pinelands Water Company New Jersey Pinelands Wastewater Company New Jersey Utility Service Affiliates (Perth Amboy) Inc. New Jersey Utility Service Affiliates, Inc. New Jersey Twin Lakes Utilities, Inc. Pennsylvania

February 24, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: February 24, 2023 MIDDLESEX WATER COMPANY (Exact name of registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: February 24, 2023 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization)

February 24, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 0-422 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 22-1114430 (State of Incorporation) (IRS employer identification no.

February 24, 2023 EX-10.27C

Amendment No. 2 ($60,000,000) to Uncommitted Loan Agreement, dated January 26, 2023, between the Company, Tidewater Utilities, Inc., White Marsh Environmental Systems, Inc., Pinelands Water Company, Pinelands Wastewater Company, Utility Service Affiliates, Inc., Utility Service Affiliates (Perth Amboy) Inc., and Bank of America, N.A. filed as Exhibit 10.27(c) of the Company’s Annual Report on Form 10-K for the year ended December 31, 2022.

Exhibit 10.27(c) AMENDMENT NO. 2 TO UNCOMMITTED LOAN AGREEMENT This Amendment No. 2 (the “Amendment”) dated as of January 26, 2023, is between Bank of America, N.A. (the “Bank”) and Middlesex Water Company, a New Jersey corporation, Tidewater Utilities, Inc., a Delaware corporation, White Marsh Environmental Systems, Inc., a Delaware corporation, Pinelands Water Company, a New Jersey corporation,

February 24, 2023 EX-99.1

MIDDLESEX WATER ANNOUNCES 2022 YEAR END RESULTS

Exhibit 99.1 MIDDLESEX WATER ANNOUNCES 2022 YEAR END RESULTS ISELIN, NJ, (February 24, 2023) - Middlesex Water Company (“Middlesex” or the “Company”) (NASDAQ:MSEX) today announced financial results for the year ended December 31, 2022. 2022 OPERATING RESULTS Consolidated operating revenues increased to $162.4 million for the year ended December 31, 2022, up $19.3 million from 2021. The increase in

February 14, 2023 SC 13G/A

MSEX / Middlesex Water Company / PRICE T ROWE ASSOCIATES INC /MD/ Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 5) MIDDLESEX WATER CO (Name of Issuer) COMMON STOCK (Title of Class of Securities) 596680108 (CUSIP NUMBER) December 31, 2022 (Date of Event which Requires Filing of Statement) Check the appropriate box to designate the Rule pursuant to which this Schedule i

February 10, 2023 SC 13G/A

MSEX / Middlesex Water Company / STATE STREET CORP Passive Investment

SC 13G/A 1 MiddlesexWaterCo.txt UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES EXCHANGE ACT OF 1934 AMENDED FILING MIDDLESEX WATER CO (NAME OF ISSUER) COMMON STOCK (TITLE OF CLASS OF SECURITIES) 596680108 (CUSIP NUMBER) 12/31/2022 (DATE OF EVENT WHICH REQUIRES FILING OF THIS STATEMENT) CHECK THE APPROPRIATE BOX TO DESIGNATE THE RULE PURSUA

February 10, 2023 SC 13G/A

MSEX / Middlesex Water Company / STATE STREET CORP Passive Investment

SC 13G/A 1 MIDDLESEXWATERCO.txt UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES EXCHANGE ACT OF 1934 EXIT FILING MIDDLESEX WATER CO (NAME OF ISSUER) COMMON STOCK (TITLE OF CLASS OF SECURITIES) 596680108 (CUSIP NUMBER) 01/31/2023 (DATE OF EVENT WHICH REQUIRES FILING OF THIS STATEMENT) CHECK THE APPROPRIATE BOX TO DESIGNATE THE RULE PURSUANT

February 9, 2023 SC 13G/A

MSEX / Middlesex Water Company / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 5)* Name of issuer: Middlesex Water Co. Title of Class of Securities: Common Stock CUSIP Number: 596680108 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒

February 8, 2023 EX-99.1

Middlesex Water Company announces discount on INVESTMENT PLAN COMMON STOCK Purchases

Exhibit 99.1 Middlesex Water Company announces discount on INVESTMENT PLAN COMMON STOCK Purchases Iselin, New Jersey February 8, 2023 - Middlesex Water Company (NASDAQ:MSEX) today announced a discount on purchases of its Common Stock purchased through the Company’s Investment Plan (the “Plan”) for a limited period of time. Shares will be offered at a 3% discount on all Common Stock purchases made

February 8, 2023 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: February 8, 2023 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) F

February 3, 2023 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: February 3, 2023 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) F

February 3, 2023 EX-99.1

Middlesex Water Company Declares Quarterly Cash Dividend

Exhibit 99.1 FOR IMMEDIATE RELEASE Middlesex Water Company Declares Quarterly Cash Dividend ISELIN, N.J., February 3, 2023 – Middlesex Water Company (NASDAQ:MSEX) announced today that its Board of Directors has declared a cash dividend of $0.3125 per share on its common stock, payable March 1, 2023 to shareholders of record as of February 14, 2023. Middlesex Water Company has paid cash dividends i

January 26, 2023 SC 13G/A

MSEX / Middlesex Water Company / BlackRock Inc. Passive Investment

SC 13G/A 1 us5966801087012623.txt us5966801087012623.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 16) MIDDLESEX WATER COMPANY - (Name of Issuer) Common Stock - (Title of Class of Securities) 596680108 - (CUSIP Number) December 31, 2022 - (Date of Event Which Requires Filing of this Statement) Check the appropria

January 20, 2023 SC 13G/A

MSEX / Middlesex Water Company / BlackRock Inc. Passive Investment

SC 13G/A 1 us5966801087012023.txt us5966801087012023.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 15) MIDDLESEX WATER COMPANY - (Name of Issuer) Common Stock - (Title of Class of Securities) 596680108 - (CUSIP Number) December 31, 2022 - (Date of Event Which Requires Filing of this Statement) Check the appropria

October 28, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: October 28, 2022 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) F

October 28, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 0-422 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 22-1114430 (State of incorporation) (IRS employer identification no.

October 28, 2022 EX-99.1

MIDDLESEX WATER ANNOUNCES FINANCIAL RESULTS FOR THIRD QUARTER 2022

Exhibit 99.1 MIDDLESEX WATER ANNOUNCES FINANCIAL RESULTS FOR THIRD QUARTER 2022 ? Quarterly operating revenue up 19.7% ? Net Income up 24.5% ? Company Marks 50th Consecutive Year of Dividend Increases ISELIN, NJ October 28, 2022 Middlesex Water Company (?Middlesex? or the ?Company?) (NASDAQ:MSEX) a provider of water and wastewater services, today reported third quarter diluted earnings per share o

October 24, 2022 EX-99.1

Middlesex Water Company Increases Common Dividend by 7.76%

Exhibit 99.1 FOR IMMEDIATE RELEASE Middlesex Water Company Increases Common Dividend by 7.76% ISELIN, N.J., October 24, 2022 ? Middlesex Water Company (NASDAQ:MSEX) announced today that its Board of Directors has declared a cash dividend of $0.3125 per share on its common stock, an increase of 7.76% from the $0.29 per share dividend declared in July of 2022. This increase raises the annual dividen

October 24, 2022 8-K/A

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: October 21, 2022 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization)

October 21, 2022 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: October 21, 2022 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) F

October 21, 2022 EX-99.1

Middlesex Water Company Increases Common Dividend by 7.6%

Exhibit 99.1 FOR IMMEDIATE RELEASE Middlesex Water Company Increases Common Dividend by 7.6% ISELIN, N.J., October 21, 2022 ? Middlesex Water Company (NASDAQ:MSEX) announced today that its Board of Directors has declared a cash dividend of $0.3125 per share on its common stock, an increase of 7.6% from the $0.29 per share dividend declared in July of 2022. This increase raises the annual dividend

September 15, 2022 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: September 15, 2022 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization)

September 2, 2022 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: September 2, 2022 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization)

August 17, 2022 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: Auguts 17, 2022 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) Fi

August 17, 2022 EX-99.1

MIDDLESEX WATER COMPANY SUBSIDIARY AWARDED CONTRACT TO MANAGE AVALON WATER, WASTEWATER AND STORMWATER SYSTEMS

FOR IMMEDIATE RELEASE MIDDLESEX WATER COMPANY SUBSIDIARY AWARDED CONTRACT TO MANAGE AVALON WATER, WASTEWATER AND STORMWATER SYSTEMS (ISELIN, NJ) August 17, 2022 ? Middlesex Water Company?s subsidiary, Utility Service Affiliates, Inc.

August 3, 2022 EX-FILING FEES

Calculation of Registration Fee.

Exhibit 107 Calculation of Filing Fee Tables Form S-3 (Form Type) Middlesex Water Company.

August 3, 2022 EX-FILING FEES

Calculation of Filing Fee Tables Form S-3 (Form Type) Middlesex Water Company. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities

Exhibit 107 Calculation of Filing Fee Tables Form S-3 (Form Type) Middlesex Water Company.

August 3, 2022 S-3ASR

As filed with the Securities and Exchange Commission on August 3, 2022

As filed with the Securities and Exchange Commission on August 3, 2022 Registration No.

August 3, 2022 424B5

211,201 Shares Middlesex Water Company Investment Plan A Direct Share Purchase and Sale and Dividend Reinvestment Plan for Middlesex Water Company Common Stock, no Par Value

Filed Pursuant to Rule 424(b)(5) Registration Statement No. 333-266482 PROSPECTUS SUPPLEMENT (To Prospectus Dated August 3, 2022) 211,201 Shares Middlesex Water Company Investment Plan A Direct Share Purchase and Sale and Dividend Reinvestment Plan for Middlesex Water Company Common Stock, no Par Value Middlesex Water Company (?Middlesex? or the ?Company?) is offering 211,201 shares of its common

July 29, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: July 29, 2022 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) File

July 29, 2022 EX-10.41

Loan Agreement, dated May 1, 2022, between the State of New Jersey, acting by and through the New Jersey Department of Environmental Protection, and the Company (Series 2022B) filed as Exhibit 10.41 of the Company’s Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2022.

Exhibit 10.41 LOAN AGREEMENT BY AND BETWEEN THE STATE OF NEW JERSEY, ACTING BY AND THROUGH THE NEW JERSEY DEPARTMENT OF ENVIRONMENTAL PROTECTION, AND MIDDLESEX WATER COMPANY (PROJECT NOS. 1225001-025/028) DATED AS OF MAY 1, 2022 -1- TABLE OF CONTENTS Page ARTICLE I DEFINITIONS SECTION 1.01. Definitions 2 ARTICLE II REPRESENTATIONS AND COVENANTS OF BORROWER SECTION 2.01. Representations of Borrower

July 29, 2022 EX-99.1

MIDDLESEX WATER REPORTS SECOND QUARTER 2022 EARNINGS

Exhibit 99.1 MIDDLESEX WATER REPORTS SECOND QUARTER 2022 EARNINGS Iselin, NJ, (July 29, 2022) - Middlesex Water Company (?Middlesex? or the ?Company?) (NASDAQ:MSEX) a provider of water and wastewater services, today reported second quarter financial results. Second Quarter 2022 Results Quarterly consolidated operating revenues increased $3.0 million to $39.7 million compared to the same period in

July 29, 2022 EX-10.40

Loan Agreement, dated May 1, 2022, between New Jersey Infrastructure Bank and the Company (Series 2022A), filed as Exhibit 10.40 of the Company’s Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2022.

Exhibit 10.40 LOAN AGREEMENT BY AND BETWEEN NEW JERSEY INFRASTRUCTURE BANK AND MIDDLESEX WATER COMPANY (PROJECT NOS. 1225001-025/028) DATED AS OF MAY 1, 2022 TABLE OF CONTENTS Page ARTICLE I DEFINITIONS SECTION 1.01. Definitions 2 ARTICLE II REPRESENTATIONS AND COVENANTS OF BORROWER SECTION 2.01. Representations of Borrower 6 SECTION 2.02. Particular Covenants of Borrower 9 ARTICLE III LOAN TO BOR

July 29, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 0-422 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 22-1114430 (State of incorporation) (IRS employer identification no.

July 22, 2022 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: July 22, 2022 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) File

July 22, 2022 EX-99.1

Middlesex Water Declares Dividend

Exhibit 99.1 FOR IMMEDIATE RELEASE Middlesex Water Declares Dividend ISELIN, N.J., July 22, 2022 - Middlesex Water Company (NASDAQ:MSEX) announced that its Board of Directors has declared a cash dividend of $0.29 per share on its common stock payable on September 1, 2022 to holders of record as of August 12, 2022. Middlesex Water has paid cash dividends in varying amounts continually since 1912 an

May 25, 2022 EX-99.1

ANNUAL MEETING OF SHAREHOLDERS MAY 23, 2022

Exhibit 99.1 ANNUAL MEETING OF SHAREHOLDERS MAY 23, 2022 Speakers: Dennis W. Doll Chairman, President & CEO A. Bruce O?Connor Sr. Vice President, Treasurer & Chief Financial Officer Jay L. Kooper Vice President, General Counsel & Secretary Forward Looking Statement As an introduction to the information we will be discussing, please be aware that some of our comments can be considered forward - loo

May 25, 2022 EX-99.2

Middlesex Water Company HOSTS ANNUAL MEETING of Shareholders

EX-99.2 3 tm2216803d1ex99-2.htm EXHIBIT 99.2 Exhibit 99.2 Middlesex Water Company HOSTS ANNUAL MEETING of Shareholders ISELIN, NJ, (May 25, 2022) Middlesex Water Company (NASDAQ:MSEX), a provider of water and wastewater and related services held its Annual Meeting of Shareholders exclusively online on May 23, 2022 at which shareholders re-elected Steven M. Klein, Amy B. Mansue, Walter G. Reinhard

May 25, 2022 8-K

Financial Statements and Exhibits, Other Events, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: May 25, 2022 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) new jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) File

May 10, 2022 SC 13G

MSEX / Middlesex Water Company / STATE STREET CORP Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES EXCHANGE ACT OF 1934 INITIAL FILING MIDDLESEX WATER CO (NAME OF ISSUER) COMMON STOCK (TITLE OF CLASS OF SECURITIES) 596680108 (CUSIP NUMBER) 04/30/2022 (DATE OF EVENT WHICH REQUIRES FILING OF THIS STATEMENT) CHECK THE APPROPRIATE BOX TO DESIGNATE THE RULE PURSUANT TO WHICH THIS SCHEDULE IS FIL

April 29, 2022 EX-99.1

MIDDLESEX WATER REPORTS FIRST QUARTER 2022 EARNINGS

Exhibit 99.1 MIDDLESEX WATER REPORTS FIRST QUARTER 2022 EARNINGS Highlights ? Revenues increased $3.7 million. ? Net Income rose by $5.2 million. ? Diluted EPS up $0.29 per share. ? Sale of Delaware regulated wastewater subsidiary. Iselin, NJ, (April 29, 2022) - Middlesex Water Company (?Middlesex? or the ?Company?) (NASDAQ:MSEX) a provider of water and wastewater services, today reported first qu

April 29, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 0-422 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 22-1114430 (State of incorporation) (IRS employer identification no.

April 29, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: April 29, 2022 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) Fil

April 22, 2022 EX-99.1

Middlesex Water Declares Dividend, Announces Annual Meeting

Exhibit 99.1 FOR IMMEDIATE RELEASE Middlesex Water Declares Dividend, Announces Annual Meeting ISELIN, N.J., April 22, 2022 - Middlesex Water Company (NASDAQ:MSEX) announced today that its Board of Directors has declared a cash dividend of $0.29 per share on its common stock payable on June 1, 2022 to holders of record as of May 13, 2022. Middlesex Water has paid cash dividends in varying amounts

April 22, 2022 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: April 22, 2022 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) Fil

April 8, 2022 DEF 14A

Definitive Proxy Statement on Schedule 14A filed with the SEC on April 8, 2022

DEF 14A 1 def14a-27689msx.htm DEF 14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of The Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as

February 25, 2022 EX-21

Middlesex Water Company Subsidiaries.

Exhibit 21 Middlesex Water Company Subsidiaries Jurisdiction of Organization Tidewater Utilities, Inc. Delaware Pinelands Water Company New Jersey Pinelands Wastewater Company New Jersey Utility Service Affiliates (Perth Amboy) Inc. New Jersey Utility Service Affiliates, Inc. New Jersey Twin Lakes Utilities, Inc. Pennsylvania

February 25, 2022 EX-10.27B

Amendment No. 1 ($60,000,000) to Uncommitted Loan Agreement, dated January 27, 2022, between the Company, Tidewater Utilities, Inc., White Marsh Environmental Systems, Inc., Pinelands Water Company, Pinelands Wastewater Company, Utility Service Affiliates, Inc., Utility Service Affiliates (Perth Amboy) Inc., and Bank of America, N.A., filed as Exhibit 10.27(b) of the Company’s Annual Report on Form 10-K for the year ended December 31, 2021.

Exhibit 10.27(b) AMENDMENT NO. 1 TO UNCOMMITTED LOAN AGREEMENT This Amendment No. 1 (the ?Amendment?) dated as of January 27, 2022, is between Bank of America, N.A. (the ?Bank?) and Middlesex Water Company, a New Jersey corporation, Tidewater Utilities, Inc., a Delaware corporation, White Marsh Environmental Systems, Inc., a Delaware corporation, Pinelands Water Company, a New Jersey corporation,

February 25, 2022 EX-10.46

Financing Agreement, dated December 16, 2021, between the Delaware Drinking Water State Revolving Fund, acting by and through the Delaware Department of Health & Social Services, and Tidewater Utilities, Inc, filed as Exhibit 10.46 of the Company’s Annual Report on Form 10-K for the year ended December 31, 2021.

Exhibit 10.46 Middlesex Water Company $19,500,000 First Mortgage Scheduled Interest Rate Bonds, Series 2021A, due November 5, 2041 $45,500,000 First Mortgage Scheduled Interest Rate Bonds, Series 2021B, due November 3, 2051 Bond Purchase Agreement Dated as of November 5, 2021 Table of Contents Section Heading Page Section 1. Authorization of Series 2021 Bonds 1 Section 2. Sale and Purchase of Seri

February 25, 2022 EX-99.1

MIDDLESEX WATER ANNOUNCES 2021 FOURTH QUARTER AND YEAR END RESULTS

Exhibit 99.1 MIDDLESEX WATER ANNOUNCES 2021 FOURTH QUARTER AND YEAR END RESULTS ISELIN, NJ, (February 25, 2022) - Middlesex Water Company (?Middlesex? or the ?Company?) (NASDAQ:MSEX) today announced financial results for the fourth quarter and year ended December 31, 2021. 2021 OPERATING RESULTS Consolidated operating revenues increased to $143.1 million for the year ended December 31, 2021, up $1

February 25, 2022 EX-10.26B

Waiver and Amendment to Loan Documents, dated February 9, 2022, between the Company, Pinelands Wastewater Company, Pinelands Water Company, Tidewater Utilities, Inc., Utility Service Affiliates (Perth Amboy) Inc., Utility Service Affiliates Inc. and While Marsh Environmental Systems, Inc., and PNC Bank, N.A., filed as Exhibit 10.26(b) of the Company’s Annual Report on Form 10-K for the year ended December 31, 2021.

Exhibit 10.26(b) Waiver and Amendment to Loan Documents THIS WAIVER AND AMENDMENT TO LOAN DOCUMENTS (this ?Amendment?) is made as of February 9, 2022, by and between ?MIDDLESEX WATER COMPANY, PINELANDS WASTEWATER COMPANY, PINELANDS WATER COMPANY, TIDEWATER UTILITIES, INC., UTILITY SERVICE AFFILIATES (PERTH AMBOY) INC., UTILITY SERVICE AFFILIATES INC. and WHITE MARSH ENVIRONMENTAL SYSTEMS, INC. (in

February 25, 2022 EX-10.26A

Amended and Restated $68,000,000 Revolving Line of Credit Note, dated February 9, 2022, between the Company, Pinelands Wastewater Company, Pinelands Water Company, Tidewater Utilities, Inc., Utility Service Affiliates (Perth Amboy) Inc., Utility Service Affiliates Inc. and While Marsh Environmental Systems, Inc., and PNC Bank, N.A., filed as Exhibit 10.26(a) of the Company’s Annual Report on Form 10-K for the year ended December 31, 2021.

Exhibit 10.26(a) Amended and Restated Revolving Line of Credit Note (Multi-Rate Options) $68,000,000.00 February 9, 2022 FOR VALUE RECEIVED, MIDDLESEX WATER COMPANY, PINELANDS WASTEWATER COMPANY, PINELANDS WATER COMPANY, TIDEWATER UTILITIES, INC., UTILITY SERVICE AFFILIATES (PERTH AMBOY) INC., UTILITY SERVICE AFFILIATES INC., and WHITE MARSH ENVIRONMENTAL SYSTEMS, INC. (individually and collective

February 25, 2022 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K (Mark One) ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 0-422 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 22-1114430 (State of Incorporation) (IRS employer identification no.

February 25, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: February 25, 2022 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization)

February 25, 2022 EX-10.47

Financing Agreement, dated December 16, 2021, between the Delaware Drinking Water State Revolving Fund, acting by and through the Delaware Department of Health & Social Services, and Tidewater Utilities, Inc, filed as Exhibit 10.46 of the Company’s Annual Report on Form 10-K for the year ended December 31, 2021.

Exhibit 10.47 FINANCING AGREEMENT BETWEEN TIDEWATER UTILITIES, INC. AND DELAWARE DRINKING WATER STATE REVOLVING FUND, ACTING BY AND THROUGH THE DELAWARE DEPARTMENT OF HEALTH AND SOCIAL SERVICES, DIVISION OF PUBLIC HEALTH Loan No. 22000027 TABLE OF CONTENTS PAGE ARTICLE I DEFINITIONS 1 Section 1.1. Definitions. 1 Section 1.2. Rules of Construction. 3 ARTICLE II REPRESENTATIONS 3 Section 2.1. Repres

February 14, 2022 SC 13G/A

MSEX / Middlesex Water Company / PRICE T ROWE ASSOCIATES INC /MD/ Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 4) MIDDLESEX WATER CO (Name of Issuer) COMMON STOCK (Title of Class of Securities) 596680108 (CUSIP NUMBER) December 31, 2021 (Date of Event which Requires Filing of Statement) Check the appropriate box to designate the Rule pursuant to which this Schedule i

February 10, 2022 SC 13G/A

MSEX / Middlesex Water Company / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 4)* Name of issuer: Middlesex Water Co. Title of Class of Securities: Common Stock CUSIP Number: 596680108 Date of Event Which Requires Filing of this Statement: December 31, 2021 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ?

January 27, 2022 SC 13G/A

MSEX / Middlesex Water Company / BlackRock Inc. Passive Investment

us5966801087012622.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 14) MIDDLESEX WATER COMPANY - (Name of Issuer) Common Stock - (Title of Class of Securities) 596680108 - (CUSIP Number) December 31, 2021 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursu

January 27, 2022 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: January 27, 2022 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) F

January 27, 2022 EX-99.1

Middlesex Water Company Declares Quarterly Cash Dividend

Exhibit 99.1 FOR IMMEDIATE RELEASE Middlesex Water Company Declares Quarterly Cash Dividend ISELIN, N.J., January 27, 2022 ? Middlesex Water Company (NASDAQ:MSEX) announced today that its Board of Directors has declared a cash dividend of $0.29 per share on its common stock, payable March 1, 2022 to shareholders of record as of February 14, 2022. Middlesex Water Company has paid cash dividends in

January 25, 2022 SC 13G/A

MSEX / Middlesex Water Company / BlackRock Inc. Passive Investment

us5966801087012522.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 13) MIDDLESEX WATER COMPANY - (Name of Issuer) Common Stock - (Title of Class of Securities) 596680108 - (CUSIP Number) December 31, 2021 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursu

January 14, 2022 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: January 14, 2022 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) F

December 17, 2021 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: December 17, 2021 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization)

November 10, 2021 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: November 10, 2021 MIDDLESEX WATER COMPANY (Exact name of registrant as specified in its charter) New Jersey 0-422 22-1114430 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization)

November 10, 2021 EX-99.1

MIDDLESEX WATER ANNOUNCES THIRD QUARTER FINANCIAL RESULTS

Exhibit 99.1 FOR IMMEDIATE RELEASE CORRECTION NOTICE IN PRESS RELEASE: MIDDLESEX WATER ANNOUNCES THIRD QUARTER FINANCIAL RESULTS ISELIN, N.J., Nov. 10, 2021 - Middlesex Water Company (?Middlesex? or the ?Company?) (NASDAQ:MSEX) a provider of water and wastewater services, today announced a correction to its press release dated October 29, 2021 entitled ?Middlesex Water Announces Third Quarter Fina

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