Ownership Submission

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

OMB APPROVAL

OMB Number:

3235-0104

Estimated average burden hours per response...

0.5

(Print or Type Responses)

1. Name and Address of Reporting Person ^*

DeBari Giovanni M

2. Date of Event Requiring Statement (Month/Day/Year)
03/13/2019

3. Issuer Name and Ticker or Trading Symbol
MACK CALI REALTY CORP [CLI]

(Last)

(First)

(Middle)

C/O MACK-CALI REALTY CORPORATION, HARBORSIDE 3, 210 HUDSON ST., STE. 400

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

_____ Director	_____ 10% Owner
__X__ Officer (give title below)	_____ Other (specify below)
Chief Accounting Officer

5. If Amendment, Date Original Filed(Month/Day/Year)

(Street)

JERSEY CITY, NJ 07311

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	1,250	D

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.			SEC 1473 (7-02)
	Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.

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)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security		6. Nature of Indirect Beneficial Ownership (Instr. 5)
Class B LTIP Units	⁽¹⁾	⁽¹⁾	Common Stock	1,844	$ ⁽¹⁾	D
Class C LTIP Units	⁽²⁾	⁽²⁾	Common Stock	2,246	$ ⁽²⁾	D
Class D LTIP Units	⁽³⁾	⁽³⁾	Common Stock	742	$ ⁽³⁾	D
Class F LTIP Units	⁽⁴⁾	⁽⁴⁾	Common Stock	5,900	$ ⁽⁴⁾	D

Reporting Owners

Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
DeBari Giovanni M C/O MACK-CALI REALTY CORPORATION HARBORSIDE 3, 210 HUDSON ST., STE. 400 JERSEY CITY, NJ 07311			Chief Accounting Officer

Signatures

/s/ Giovanni M. DeBari		03/15/2019
^**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)	The Class B LTIP Units are a class of limited partnership units of Mack-Cali Realty, L.P. (the "Operating Partnership") that, following the occurrence of certain events and upon vesting are convertible by the holder into an equivalent number of common units of the Operating Partnership ("Common Units"). Common Units of the Operating Partnership are redeemable by the holder for cash or, at the election of Mack-Cali Realty Corporation (the "Company"), shares of common stock of the Company on a one-for-one basis or the cash value of such shares. The Class B LTIP Units vested on March 8, 2019.
(2)	The Class C LTIP Units are a class of limited partnership units of the Operating Partnership that, following the occurrence of certain events and upon vesting are convertible by the holder into an equivalent number of Common Units. Common Units of the Operating Partnership are redeemable by the holder for cash or, at the election of the Company, shares of common stock of the Company on a one-for-one basis or the cash value of such shares. Fifty percent (50%) of the Class C LTIP Units may vest over a three to five year period based on the attainment of absolute total stockholder return ("TSR") metrics by the Company over a three year performance period. The remaining fifty percent (50%) of the Class C LTIP Units may vest over a three to five year period based on the Company's TSR relative to the TSR of other equity office REITs in the NAREIT Index over the same three year period.
(3)	The Class D LTIP Units are a class of units of the Operating Partnership that, following the occurrence of certain events and upon vesting are convertible by the holder into an equivalent number of Common Units. Common Units of the Operating Partnership are redeemable by the holder for cash or, at the Company's election, shares of common stock of the Company on a one-for-one basis or the cash value of such shares. The Class D LTIP Units vest on April 4, 2020.
(4)	The Class F LTIP Units are a class of units of the Operating Partnership that, following the occurrence of certain events and upon vesting are convertible by the holder into an equivalent number of Common Units. Common Units of the Operating Partnership are redeemable by the holder for cash or, at the Company's election, shares of common stock of the Company on a one-for-one basis or the cash value of such shares. The Class F LTIP Units vest on April 20, 2021.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, See Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.