FORM 5
       Check box if no longer Form 3 Holdings Reported X Form 4 Transactions Reported  | 
  
   UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 
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  1. Name and Address
  of Reporting Person Gantcher Nathan (Last) (First) (Middle) 
 (Street) 
 (City)
        (State)          (Zip)  | 
  
    2. Issuer Name and Ticker Mack-Cali Realty Corporation (CLI) 
 
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    4. Statement for
  Month/Year 
 
  5. If Amendment, Date
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   X  Director  | 
  
        10% Owner  | 
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  X Form Filed
  by One Reporting Person  | 
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   Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned  | 
 
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   1. Title of   | 
  
   2. Transaction
      Date  | 
  
   2A. Deemed  | 
  
   3. Transaction  | 
  
   4. Securities Acquired (A)  | 
  
   5. Amount of  | 
  
   6. Owner-  | 
  
   7.  Nature of  | 
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   Amount  | 
  
   (A) or (D)  | 
  
   Price  | 
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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).
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   Table II -
  Derivative Securities Acquired, Disposed of, or Beneficially Owned  | 
 
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   1. Title of Derivative
  Security  | 
  
   2. Conver sion or Exercise Price of Derivative Security  | 
  
   3. Transaction Date  | 
  
   3A. Deemed Execution Date,
  if any (Month/  | 
  
   4. Transaction Code  | 
  
   5. Number of Derivative
  Securities Acquired (A) or Disposed of (D)  | 
  
   6. Date Exercisable and
  Expiration Date  | 
  
   7. Title and Amount of
  Underlying Securities  | 
  
   8. Price of Derivative
  Security  | 
  
   9. Number of Derivative
  Securities Beneficially Owned at End of Year  | 
  
   10.Ownership of Derivative
  Security:  | 
  
   11. Nature of Indirect
  Beneficial Ownership  | 
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   (A)  | 
  
   (D)  | 
  
   Date  | 
  
   Expiration  | 
  
   Title  | 
  
   Amount or Number of Shares  | 
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   Phantom Stock Units  | 
  
   1-for-1  | 
  
   4/3/02  | 
  
   
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   A  | 
  
   183.189(1)  | 
  
   
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   (2)  | 
  
   (2)  | 
  
   Common Stock  | 
  
   183.189  | 
  
   $33.96  | 
  
   
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   D  | 
  
   
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   Phantom Stock Units  | 
  
   1-for-1  | 
  
   7/3/02  | 
  
   
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   A  | 
  
   189.133(1)  | 
  
   
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   (2)  | 
  
   (2)  | 
  
   Common Stock  | 
  
   189.133  | 
  
   $33.50  | 
  
   
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   D  | 
  
   
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   Phantom Stock Units  | 
  
   1-for-1  | 
  
   10/3/02  | 
  
   
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   A4  | 
  
   211.455(1)  | 
  
   
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   (2)  | 
  
   (2)  | 
  
   Common Stock  | 
  
   211.455  | 
  
   $30,67  | 
  
   2.406.075  | 
  
   D  | 
  
   
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   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. 
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 /s/ Nathan Gantcher ** Signature of Reporting Person  | 
  
   
 2/14/03 Date  | 
 
**             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 provided is
insufficient, see Instruction 6
for procedure.
http://www.sec.gov/divisions/corpfin/forms/form5.htm
Last update: 09/03/2002