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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 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(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * DeMarco Michael J.   2. Issuer Name and Ticker or Trading Symbol MACK CALI REALTY CORP [CLI] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) President and COO (Last) (First) (Middle) C/O MACK-CALI REALTY CORPORATION, HARBORSIDE 3, 210 HUDSON ST., STE. 400 3. Date of Earliest Transaction (Month/Day/Year) 01/05/2017 (Street) JERSEY CITY, NJ 07311 4. If Amendment, Date Original Filed(Month/Day/Year) 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 Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 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) Code V Amount (A) or (D) Price Restricted Stock Units 01/05/2017   A(1)(2)   67.55 (1) (2) A $ 0 (1) (2) 19,531.67 (3) D

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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)

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 Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Performance Stock Units

$ 0 (4)

01/05/2017

A(4)

304

(5)

(5)

Common Stock

304

$ 0 (4)

58,914.35 (6)

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
DeMarco Michael J. C/O MACK-CALI REALTY CORPORATION HARBORSIDE 3, 210 HUDSON ST., STE. 400 JERSEY CITY, NJ 07311			President and COO

Signatures

/s/ Michael J. DeMarco		01/09/2017
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	On June 5, 2015 (the "Grant Date"), the reporting person was issued 18,775.27 restricted stock units ("RSUs") which shall vest in three equal, annual installments commencing June 5, 2016. Each RSU represents a contingent right to receive one share of common stock of Mack-Cali Realty Corporation (the "Company"). Dividend equivalent rights accrue with respect to these RSUs when and as dividends are paid on the Company's common stock. On January 5, 2017, the record date for the Company's quarterly dividend on its common stock (the "Dividend Record Date"), 67.55 dividend equivalent rights at $28.92 per RSU were credited to the reporting person's account.
(2)	The RSUs attributable to dividend equivalents shall vest when, and to the extent, the underlying RSUs are vested.
(3)	Reported amount includes 6,440 vested RSUs that have been settled in shares of common stock and 13,091.67 unvested RSUs (including unvested dividend equivalents with respect to such unvested RSUs).
(4)	On the Grant Date, the reporting person was granted 56,325.82 performance stock units ("PSUs") which shall vest based on the degree to which a relative total shareholder return target is attained for the three year performance period commencing on the Grant Date. Each PSU represents a contingent right to receive one share of the Company's common stock. Dividend equivalent rights accrue with respect to these PSUs when and as dividends are paid on the Company's common stock. On the Dividend Record Date, 304.00 dividend equivalent rights at $28.92 per PSU were credited to the reporting person's account.
(5)	The PSUs attributable to dividend equivalents shall vest when, and to the extent, the underlying PSUs are vested.
(6)	Reported amount excludes the following securities directly beneficially owned by the reporting person: (i) options to purchase 400,000 shares of the Company's common stock, (ii) 118,989 Class A LTIP Units of Mack-Cali Realty, L.P. (the "Operating Partnership"), and (iii) 23,041 Class B LTIP Units of the Operating Partnership. Subject to certain vesting conditions, the Class A LTIP Units and Class B LTIP Units may be converted to common units of limited partnership interest in the Operating Partnership which are redeemable for shares of common stock of the Company on a one-for-one basis.

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