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): May 2, 2016 (May 2, 2016)

MACK-CALI REALTY CORPORATION

(Exact Name of Registrant as Specified in Charter)

(732) 590-1000

(Registrant’s telephone number, including area code)

MACK-CALI REALTY, L.P.

(Exact Name of Registrant as Specified in Charter)

(732) 590-1000

(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))

Item 7.01 Regulation FD

On May 2, 2016, Mack-Cali Realty Corporation (the “Company”), the general partner of Mack-Cali Realty, L.P., made public certain supplemental financial information. A copy of the supplemental financial information is attached hereto as Exhibit 99.1.

This Current Report on Form 8-K, including the exhibit furnished herewith, contains “forward-looking statements” within the meaning of Section 21E of the Exchange Act. Such forward-looking statements relate to, without limitation, our future economic performance, plans and objectives for future operations and projections of revenue and other financial items. Forward-looking statements can be identified by the use of words such as “may,” “will,” “plan,” “project,” “potential,” “should,” “expect,” “anticipate,” “estimate,” “target,” “continue” or comparable terminology. Forward-looking statements are inherently subject to risks and uncertainties, many of which we cannot predict with accuracy and some of which we might not even anticipate. Although we believe that the expectations reflected in such forward-looking statements are based upon reasonable assumptions at the time made, we can give no assurance that such expectations will be achieved. Future events and actual results, financial and otherwise, may differ materially from the results discussed in the forward-looking statements as a result of various factors, including those set forth under the heading “Disclosure Regarding Forward-Looking Statements” contained in our most recent periodic reports on Forms 10-K and 10-Q. Readers are cautioned not to place undue reliance on these forward-looking statements. Unless required by U.S. federal securities laws, we do not intend to update any of the forward-looking statements to reflect circumstances or events that occur after the statements are made or to conform the statements to actual results.

The information contained in this Current Report on Form 8-K, including the exhibit filed herewith, should be viewed in conjunction with the consolidated financial statements and notes thereto appearing in the Company’s most recent Annual Report on Form 10-K, Quarterly Report on Form 10-Q, and the earnings release and supplemental financial information furnished with the Company’s Current Report on Form 8-K as filed with the Securities and Exchange Commission on April 27, 2016.

In connection with the foregoing, the Company hereby furnishes the following documents:

Item 9.01                                           Financial Statements and Exhibits

(d)  Exhibits

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The information included in this Current Report on Form 8-K (including the exhibit hereto) is being furnished under Item 7.01, “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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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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EXHIBIT INDEX

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