FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  BERNIKOW ALAN S
 2. Date of Event Requiring Statement (Month/Day/Year)
05/20/2004		 3. Issuer Name and Ticker or Trading Symbol
MACK CALI REALTY CORP [CLI]
(Last)
(First)
(Middle)
C/O MACK-CALI REALTY CORPORATION, 11 COMMERCE DRIVE		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

CRANFORD, NJ 07016		 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 1,000 (1)
D
 

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Director Stock Option (Right to Buy) 05/20/2005(2) 05/20/2014 Common Stock 5,000 $ 35.59 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
BERNIKOW ALAN S
C/O MACK-CALI REALTY CORPORATION
11 COMMERCE DRIVE
CRANFORD, NJ 07016		   X      

Signatures

/s/ Alan S. Bernikow 05/25/2004
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(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).
(1) On May 20, 2004, the reporting person was granted 1,000 restricted shares of Common Stock pursuant to the Amended and Restated 2000 Director Stock Option Plan of Mack-Cali Realty Corporation. The shares shall vest on January 1, 2005.
(2) On May 20, 2004, the reporting person was granted an option to purchase 5,000 shares of Common Stock. The option vests on May 20, 2005.

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