MIDDLESEX WATER CO

MSEX · Nasdaq · SIC 4941: Water Supply
362
SEC Filings

Business Summary

Middlesex Water Company, incorporated in 1897, owns and operates regulated water utility and wastewater systems primarily in New Jersey and Delaware. It serves approximately 131,000 regulated customers across its Middlesex, Tidewater, and Pinelands systems. The company also operates water and wastewater systems under unregulated contracts for municipal and private clients, including the City of Perth Amboy, Borough of Avalon, and Borough of Highland Park, and offers home maintenance programs through a marketing agreement with HomeServe USA Corp.

Next Earnings

Q2 FY2026 — expected 2026-07-28

Key Facts from Earnings Calls

TypeSubjectDetailQuarter
topic_mentionMSEXdiscussed_in_filing Cybersecurity
topic_mentionMSEXdiscussed_in_filing Trusted Computing
topic_mentionMSEXdiscussed_in_filing Blockchain & Crypto
topic_mentionMSEXdiscussed_in_filing Regulation
topic_mentionMSEXdiscussed_in_filing Networking
topic_mentionMSEXdiscussed_in_filing Sovereign & Government
topic_mentionMSEXdiscussed_in_filing Cybersecurity
topic_mentionMSEXdiscussed_in_filing Trusted Computing
topic_mentionMSEXdiscussed_in_filing Blockchain & Crypto
topic_mentionMSEXdiscussed_in_filing Regulation
topic_mentionMSEXdiscussed_in_filing Networking
topic_mentionMSEXdiscussed_in_filing Sovereign & Government
topic_mentionMSEXdiscussed_in_filing Cybersecurity
topic_mentionMSEXdiscussed_in_filing Trusted Computing
topic_mentionMSEXdiscussed_in_filing Blockchain & Crypto
topic_mentionMSEXdiscussed_in_filing Regulation
topic_mentionMSEXdiscussed_in_filing Networking
topic_mentionMSEXdiscussed_in_filing Sovereign & Government
topic_mentionMSEXdiscussed_in_filing Cybersecurity
topic_mentionMSEXdiscussed_in_filing Trusted Computing

Annual Reports (10-K)

FiledPeriodAccessionSourceFull Text
2026-02-192025-12-310001628280-26-009777EDGAR43K words
2025-02-282024-12-310001174947-25-000251EDGAR—
2024-03-012023-12-310001174947-24-000281EDGAR—
2023-02-242022-12-310001174947-23-000258EDGAR—
2022-02-252021-12-310001174947-22-000283EDGAR—
2021-02-252020-12-310001174947-21-000198EDGAR—
2020-02-272019-12-310001174947-20-000248EDGAR—
2019-03-082018-12-310001174947-19-000334EDGAR—
2018-03-092017-12-310001174947-18-000337EDGAR—
2017-03-032016-12-310001174947-17-000294EDGAR—

Quarterly Reports (10-Q)

FiledPeriodAccessionSourceFull Text
2025-10-312025-09-300001628280-25-047821EDGAR17K words
2025-07-312025-06-300001174947-25-001119EDGAR—
2025-05-012025-03-310001174947-25-000677EDGAR—
2024-10-312024-09-300001174947-24-001201EDGAR—
2024-07-312024-06-300001174947-24-000934EDGAR—
2024-05-082024-03-310001174947-24-000713EDGAR—
2023-11-092023-09-300001174947-23-001376EDGAR—
2023-07-282023-06-300001174947-23-000933EDGAR—
2023-05-012023-03-310001174947-23-000678EDGAR—
2022-10-282022-09-300001174947-22-001123EDGAR—
2022-07-292022-06-300001174947-22-000866EDGAR—
2022-04-292022-03-310001174947-22-000576EDGAR—

Recent Current Reports (8-K)

FiledAccessionSourceFull Text
2026-03-260001628280-26-021412EDGAR5K words
2026-02-240001628280-26-011115EDGAR—
2026-02-190001628280-26-009722EDGAR—
2025-12-220001628280-25-058529EDGAR—
2025-10-310001628280-25-047818EDGAR—
2025-07-310001174947-25-001118EDGAR—
2025-05-220001174947-25-000838EDGAR—
2025-05-120001104659-25-047384EDGAR—
2025-05-010001174947-25-000675EDGAR—
2025-03-040001174947-25-000269EDGAR—

362 total filings indexed. 330 additional filings (S-1, DEF 14A, etc.) View all (JSON) · SEC EDGAR

Sector Peers

AWR — AMERICAN STATES WATER CO ARTNA — ARTESIAN RESOURCES CORP AWK — American Water Works Company, Inc. VYRE — CABO VERDE CAPITAL INC. CDZI — CADIZ INC CWT — CALIFORNIA WATER SERVICE GROUP CWCO — Consolidated Water Co. Ltd. WTRG — Essential Utilities, Inc.

Tags

regulated-water-utility regulated-wastewater-utility contract-water-and-wastewater-operations residential-customers commercial-customers industrial-customers municipal-clients

Company Identity

CIK0000066004
TickerMSEX
ExchangeNasdaq
SIC4941: Water Supply
IncorporatedNJ
HeadquartersIselin, New Jersey

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Origin Provenance
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signed: 2026-04-13T04:46:22.084Z
sources: 22 verified data leaves
chain: SEC.gov PEM → origin.rootz.global extraction → this page
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