Ownership Submission

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 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 ^*

MACK WILLIAM L

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

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

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

(Last)

(First)

(Middle)

C/O MACK-CALI REALTY CORPORATION, 343 THORNALL STREET

3. Date of Earliest Transaction (Month/Day/Year)
04/03/2008

(Street)

EDISON, NJ 08837

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

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
	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.		SEC 1474 (9-02)

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

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Phantom Stock Units

$ 0 ⁽¹⁾

04/03/2008

440.70 ⁽²⁾

08/08/1988⁽³⁾

Common Stock

440.70

$ 39.44

8,743.05 ⁽⁴⁾

Reporting Owners

Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
MACK WILLIAM L C/O MACK-CALI REALTY CORPORATION 343 THORNALL STREET EDISON, NJ 08837	X

Signatures

/s/ William L. Mack		04/07/2008
^**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)	The phantom stock units convert to common stock on a one-for-one basis.
(2)	The number of phantom stock units awarded is comprised of a quarterly director's fee earned and a quarterly dividend credited on cumulative phantom stock units under the Mack-Cali Realty Corporation Deferred Compensation Plan for Directors.
(3)	The phantom stock units were accrued under the Mack-Cali Realty Corporation Deferred Compensation Plan for Directors and are to be settled 100% in Common Stock upon the termination of the reporting person's service on the Board of Directors of the Corporation or upon a change in control of the Corporation.
(4)	Reported amount excludes the following securities directly beneficially owned by the reporting person: (i) 414,431 common units of limited partnership interest of Mack-Cali Realty, L.P. ("Common Units"); and (ii) options to purchase 18,000 shares of common stock. Reported amount also excludes the following securities indirectly beneficially owned by the reporting person: (i) 1,932,683 Common Units held by a grantor retained annuity trust (the "GRAT"); (ii) 100,000 Common Units held by the William & Phyllis Mack Family Foundation, Inc. a charitable foundation of which the reporting person is a trustee (the "Foundation"); and (iii) 833,770 Common Units held by other trusts (the "Trusts"). Pursuant to Rule 13d-4, the reporting person disclaims beneficial ownership of all securities held by the GRAT, the Foundation and the Trusts.

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