Current Report · Items 5.07 · 8-K

Middlesex Water Company

MSEXNASDAQEQUITYCurrent

Submission of Matters to a Vote of Security Holders

Filed May 20, 2026Accepted May 20, 2026, 4:05 PM EDTCIK 66004Accession 0001628280-26-036878

Company context

Middlesex Water Company (“Middlesex”) is one of the nation’s premier investor-owned water and wastewater utilities. Established in 1897, Middlesex is a trusted provider of life-sustaining services to more than half a million people in New Jersey and Delaware. The company focuses on employee engagement, operational excellence, superior customer experience, investment in infrastructure, and selective and sustainable growth to deliver value to our customers, investors, and the communities we serve.

Current securities

MSEXNASDAQ · EQUITY · Current MSEXPOTC · PREFERRED · Current

Recent company filings

Disclosure sections

Items 5.07

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Item 5.07Item 5.07 - Submission of Matters to Vote

Item 5.07 Submission of Matters to a Vote of Security Holders. The 2026 Annual Meeting of Shareholders (the “Annual Meeting”) of Middlesex Water Company (the “Company”) was held on May 19, 2026, as a virtual meeting pursuant to the notice sent, on or about April 6, 2026, to all shareholders of record at the close of business on March 24, 2026, the record date for the Annual Meeting. At the Annual Meeting, the shareholders approved the following proposals as set forth in the Company’s Definitive Proxy Statement on Schedule 14A ("2026 Proxy Statement") filed with the Securities and Exchange Commission on April 6, 2026: 1. Election of Directors To elect one Class II director to serve for a period of two years and three Class III directors to serve for a period of three years to our Board of Directors (the “Board”) and until their successors are elected and qualified. For Withheld Broker Non-Votes ─────────────────────────────────────────────────────────────────────────────── Class II Robert Hoglund 14,146,401 150,835 2,470,748 Class III Joshua Bershad, M.D. 13,598,978 698,258 2,470,748 James F. Cosgrove, Jr. 13,630,988 666,248 2,470,748 Vaughn L. McKoy 11,393,674 2,903,562 2,470,748 The following directors continued to serve on the Board of the Company immediately after the Annual Meeting: Nadine Leslie, Amy B. Mansue, Kim C. Hanemann, Steven M. Klein, and Ann L. Noble. 2. Approval, on a advisory basis, of the Company’s Named Executive Officers Compensation as disclosed in the 2026 Proxy Statement For Against Abstain Broker Non-Votes ────────────────────────────────────────────────────────────── 13,250,940 982,607 63,689 2,470,748 3. Ratification of the Appointment by the Audit Committee of the Board of the Company’s Independent Registered Public Accounting Firm for the fiscal year ending December 31, 2026 For Against Abstain Broker Non-Votes ────────────────────────────────────────────────────────────── 16,632,847 98,839 36,298 0