UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

Date of report (Date of earliest event reported): January 25, 2019 (January 24, 2019)

MACK-CALI REALTY CORPORATION

(Exact Name of Registrant as Specified in Charter)

Harborside 3, 210 Hudson St., Ste. 400

Jersey City, New Jersey 07311

(Address of Principal Executive Offices) (Zip Code)

(732) 590-1010

(Registrant’s telephone number, including area code)

MACK-CALI REALTY, L.P.

(Exact Name of Registrant as Specified in Charter)

Harborside 3, 210 Hudson St., Ste. 400

Jersey City, New Jersey 07311

(Address of Principal Executive Offices) (Zip Code)

(732) 590-1010

(Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

o      Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o      Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o      Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o      Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).    Emerging growth company o

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  o

Item 2.02 Results of Operations and Financial Condition

On January 24, 2019, Mack-Cali Realty Corporation (the “Company”), a Maryland corporation and the general partner of Mack-Cali Realty, L.P. (the “Operating Partnership”) through which it conducts its business, issued a press release announcing its leasing results for the fourth quarter and year ended December 31, 2018. A copy of the press release is attached hereto as Exhibit 99.1.

In connection with the foregoing, the Company and Operating Partnership hereby furnish the following documents:

Item 9.01              Financial Statements and Exhibits

(d)  Exhibits

The information included in this Current Report on Form 8-K (including the exhibit hereto) is being furnished under Item 2.02, “Results of Operations and Financial Condition” and Item 9.01 “Financial Statements and Exhibits” of Form 8-K. As such, the information (including the exhibit) herein shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section, nor shall it be incorporated by reference into a filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. This Current Report (including the exhibit hereto) will not be deemed an admission as to the materiality of any information required to be disclosed solely to satisfy the requirements of Regulation FD.

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EXHIBIT INDEX

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, each registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

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