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)
07/12/2011

(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

Units of Limited Partnership Interest

$ 0 ⁽¹⁾

07/12/2011

P⁽²⁾

208,738

08/08/1988⁽³⁾

Common Stock

208,738 ⁽¹⁾

$ 33.535

1,577,017 ⁽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		07/14/2011
^**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)	Units of limited partnership of Mack-Cali Realty, L.P. ("Common Units") are redeemable by the holders of Common Units, subject to certain restrictions, on the basis of one Common Unit for either one share of the Corporation's Common Stock, or cash equal to the fair market value of a share of Common Stock at the time of the redemption. The Corporation has the option to deliver shares of Common Stock in exchange for all or any portion of the cash requested.
(2)	On July 12, 2011, the reporting person purchased 208,738 Common Units in a private acquisition from a family trust not controlled by the reporting person and for estate planning purposes.
(3)	The right to convert Common Units is not subject to expiration.
(4)	Reported amount excludes options to purchase 5,000 shares of common stock directly beneficially owned by the reporting person. Reported amount also excludes the following securities indirectly beneficially owned by the reporting person: (i) 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 (ii) 416,885 Common Units held by another trust (the "Trust"). Pursuant to Rule 13d-4, the reporting person disclaims beneficial ownership of all securities held by the Foundation and the Trust.

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