FORM 4
ý Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

(Print or Type Responses)		   UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF
CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934,
Section 17(a) of the Public Utility Holding Company Act of 1935 or
Section 30(f) of the Investment Company Act of 1940		  
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1.   Name and Address of Reporting Person*   2.   Issuer Name and Ticker or Trading Symbol   6.   Relationship of Reporting Person(s) to Issuer
(Check all applicable)
    Zuckerberg   Roy           Mack-Cali Realty Corporation (CLI)         X   Director            10% Owner
 
           
    (Last)   (First)   (Middle)   3.   I.R.S. Identification Number of Reporting Person, if an entity (voluntary)   4.   Statement for
Month/Day/Year		                Officer
        (give title below)		            Other
        (specify below)
    c/o Mack-Cali Realty Corporation
11 Commerce Drive		               1/6/03            
 
 
     
(Street)           5.   If Amendment, Date of Original (Month/Day/Year)   7.   Individual or Joint/Group Filing
(Check Applicable Line)
    X     Form filed by One Reporting Person
             Form filed by More than
    Cranford,   New Jersey   07016                                   One Reporting Person
    (City)   (State)   (Zip)                            
                Table I — Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.   Title of Security
(Instr. 3)		   2.   Transaction Date   2A.   Deemed Execution Date, if any   3.   Transaction Code
(Instr. 8)		   4.   Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		   5.   Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)		   6.   Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)		   7.   Nature of Indirect Beneficial Ownership
(Instr. 4)
            (Month/Day/Year)   (Month/Day/Year)  
                       
                            Code   V       Amount   (A) or (D)   Price                        
                                                                         
                                                                         
                                                                         
                                                                         
                                                                         
                                                                         
                                                                         
FORM 4 (Continued)   Table II — Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1.   Title of Derivative Security
(Instr. 3)		   2.   Conversion or Exercise Price of Derivative Security   3.   Transaction Date
(Month/Day/Year)		   3A.   Deemed Execution Date, if any
(Month/Day/Year)		   4.   Transaction Code
(Instr. 8)		   5.   Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)		   6.   Date Exercisable and Expiration Date (Month/Day/Year)
                               
 
                                    Code   V       (A)   (D)       Date
Exercisable		   Expiration Date
    Phantom Stock
Units		       1 for 1       1/6/03               A           221.069
(1)		           (2)   (2)
                                                                 
                                                                 
                                                                 
                                                                 
                                                                 
                                                                 
                                                                 
                                                                 
                                                                 
                                                                 
7.   Title and Amount of Underlying Securities
(Instr. 3 and 4)		   8.   Price of Derivative Security
(Instr. 5)		   9.   Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)		   10.   Ownership Form of Derivative Securities: Direct (D) or Indirect (I) (Instr. 4)   11.   Nature of Indirect Beneficial Ownership
(Instr. 4)
   
                               
    Title   Amount or Number of Shares                                
    Common Stock   221.069       $29.95       2,627.144       D        
                                         
                                         
                                         
                                         
                                         
                                         
                                         
                                         
                                         
                                         

Explanation of Responses:

(1)
The number of phantom stock units awarded is comprised of a quarterly director's fee earned and quarterly dividend credited on cumulative phantom stock units under the Mack-Cali Realty Corporation Deferred Compensation Plan for Directors.
(2)
The phantom stock units were accrued under the Mack-Cali Realty Corporation Deferred Compensation Plan for Directors and are to be settled 100% in Mack-Cali Realty Corporation common stock upon the termination of the reporting person's service on the Board of Directors of Mack-Cali Realty Corporation or upon a change in control of Mack-Cali Realty Corporation.

/s/ Roy Zuckerberg   1/8/03
**Signature of Reporting Person		  
Date

Reminder:
 
Report on a separate line for each class of securities beneficially owned directly or indirectly.
*   If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**   Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note:   File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

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http://www.sec.gov/divisions/corpfin/forms/form4.htm
Last update: 09/05/2002