MSEX — Middlesex Water Company

MSEX closed at $56.22 (+0.05%) on Oct 27, 2026. Float: 18.4M shares. Latest SEC filing: 8-K on May 20, 2026.

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Middlesex Water Company owns and operates regulated water utility and wastewater systems. It operates in two segments, Regulated and Non-Regulated. The Regulated segment collects, treats, and distributes water on a retail and wholesale basis to residential, commercial, industrial, and fire protection customers, as well as provides regulated wastewater systems in New Jersey and Delaware. The Non-Regulated segment provides non-regulated contract services for the operation and maintenance of municipal and private water and wastewater systems in New Jersey and Delaware. The company was incorporated in 1896 and is headquartered in Iselin, New Jersey.

Company profile

• Sector: Utilities
• Industry: Regulated Water
• Country: US
• Exchange: NASDAQ
• Employees: 360
• Website: https://www.middlesexwater.com

Latest SEC filings for MSEX

• 2026-05-208-K
• 2026-04-3010-Q
• 2026-04-308-K
• 2026-03-268-K
• 2026-02-248-K
• 2026-02-20424B5
• 2026-02-198-K
• 2026-02-1910-K
• 2025-12-228-K

Latest MSEX news

• 2026-10-23Middlesex Water raises quarterly dividend by 5.6% to $0.38/share Read article
• 2026-10-13Middlesex Water: Slow And Steady Growth At A Discount Read article

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