SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report: November 8, 2001 (date of earliest event reported) MACK-CALI REALTY CORPORATION -------------------------------------------------------------------------------- (Exact name of Registrant as specified in its charter) MARYLAND -------------------------------------------------------------------------------- (State or other jurisdiction of incorporation) 1-13274 22-3305147 -------------------------------------------------------------------------------- (Commission File No.) (I.R.S. Employer Identification No.) 11 COMMERCE DRIVE, CRANFORD, NEW JERSEY 07016 -------------------------------------------------------------------------------- (Address of Principle Executive Offices) (Zip Code) (908) 272-8000 -------------------------------------------------------------------------------- (Registrant's telephone number, including area code) N/A -------------------------------------------------------------------------------- (Former Name or Former Address, if Changed Since Last Report) ITEM 7. FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS (c) Exhibits 99.1 Third Quarter 2001 Supplemental Operating and Financial Data ITEM 9. REGULATION FD DISCLOSURE For the quarter ended September 30, 2001, Mack-Cali Realty Corporation (the "Company") hereby makes available supplemental data regarding its operations. The Company is attaching such supplemental data as Exhibit 99.1 to this Current Report on Form 8-K. The information included in this Current Report on Form 8-K (including the exhibit hereto) is furnished pursuant to Item 9 and shall not be deemed to be "filed" for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that Section or Sections 11 and 12 (a) (2) of the Securities Act of 1933, as amended. This 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. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. MACK-CALI REALTY CORPORATION Date: November 7, 2001 By: /s/ BARRY LEFKOWITZ --------------------- Barry Lefkowitz Executive Vice President & Chief Financial Officer EXHIBIT INDEX Exhibit Document ------- -------- 99.1 Third Quarter 2001 Supplemental Operating and Financial Data