Employer with a benefit plan ยท SEC filer
MIDDLESEX WATER COMPANY
485C ROUTE ONE SOUTH, SUITE 400, ISELIN, NJ 08830
EIN
22-1114430
SEC CIK
0000066004
SEC · 2026-08-12
Industry (SIC)
Water Supply (4941)
SEC · 2026-08-12
State of incorporation
NJ
SEC · 2026-08-12
Ticker
MSEX, MSEXP
SEC · 2026-08-12
Latest SEC filing
4 2026-08-12
SEC · 2026-08-12
Benefit plan 3, 2024 filing
MIDDLESEX WATER COMPANY 401(K) PLAN
DOL · 2025-10-15
Participants (start of year)
404
DOL · 2025-10-15
Plan features
code 2E2F2G2J2K2T3H3D2R
DOL · 2025-10-15
Plan type
Single-employer plan
DOL · 2025-10-15
Business code (NAICS)
221300
DOL · 2025-10-15
Benefit plan 1, 2024 filing
MIDDLESEX WATER COMPANY PENSION PLAN
DOL · 2025-10-15
Participants (start of year)
314
DOL · 2025-10-15
Plan features
code 1A3H
DOL · 2025-10-15
Plan type
Single-employer plan
DOL · 2025-10-15