Investors Bank is a publicly traded American independent full service bank that is based in Short Hills, New Jersey, USA. The bank operates over 150 branches across New Jersey and New York. In 1926, the bank was incorporated as the Washington Rock Building and Loan Association. Sixteen years later, its name changed to Investors Savings and Loan. Through mergers, acquisitions, and internal expansion, the bank grew and eventually changed its name to Investors Savings Bank. In 1997, Investors changed from a New Jersey-chartered mutual savings bank to a New Jersey-chartered stock savings bank, and reorganized as a two-tiered holding company. The bank became a wholly owned subsidiary of Investors Bancorp, Inc., a Delaware-chartered, mid-tier stock holding company, and Investors Bancorp Inc. became a wholly owned subsidiary of Investors Bancorp MHC.