Employees of the General Partner, who meet certain minimum age and service requirements, are eligible to participate in the Mack-Cali Realty Corporation 401(k) Savings/Retirement Plan (the “401(k) Plan”). Eligible employees may elect to defer from one percent up to 60 percent of their annual compensation on a pre-tax basis to the 401(k) Plan, subject to certain limitations imposed by federal law. The amounts contributed by employees are immediately vested and non-forfeitable. The Company may make discretionary matching or profit sharing contributions to the 401(k) Plan on behalf of eligible participants in any plan year. Participants are always 100 percent vested in their pre-tax contributions and will begin vesting in any matching or profit sharing contributions made on their behalf after two years of service with the Company at a rate of 20 percent per year, becoming 100 percent vested after a total of six years of service with the Company. All contributions are allocated as a percentage of compensation of the eligible participants for the Plan year. The assets of the 401(k) Plan are held in trust and a separate account is established for each participant. A participant may receive a distribution of his or her vested account balance in the 401(k) Plan in a single sum or in installment payments upon his or her termination of service with the Company. Total expense recognized by the Company for the 401(k) Plan for the years ended December 31, 2019, 2018 and 2017 was $773,000, $886,000 and $1,055,000, respectively.