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, 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 *
Kirby Michael JL
  2. Issuer Name and Ticker or Trading Symbol
MDC PARTNERS INC [MDCA]
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 MDC PARTNERS INC., 45 HAZELTON AVENUE
3. Date of Earliest Transaction (Month/Day/Year)
03/10/2009
(Street)

TORONTO, A6 M5R 2E3
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
Class A Shares               13,000 (1) D  
Class A Shares               381 (2) I See FN (2)

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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
Stock Options (3) $ 15.26 (4)             06/08/2004 06/08/2009 Class A Shares 25,000   25,000 D  
SARs (5) $ 3.72 03/10/2009   A   10,000   03/10/2010 03/09/2014 Class A Shares 10,000 $ 0 10,000 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Kirby Michael JL
C/O MDC PARTNERS INC.
45 HAZELTON AVENUE
TORONTO, A6 M5R 2E3
  X      

Signatures

 /s/ Michael J. L. Kirby   03/11/2009
**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) Includes 8,000 Restricted Stock Units (4,000 previously granted on May 2, 2007, and 4,000 previously granted on April 29, 2008) which will vest 100%, and transfer restrictions will lapse, on the third anniversary of the respective grant dates (each, a "Lapse Date"), contingent upon certain events and the Reporting Person's continued service as a director through each such Lapse Date.
(2) Held by an Affiliate of the Reporting Person.
(3) Stock Options (previously granted on June 8, 2004) vest 1/5 on the grant date and 1/5 on each anniversary of the grant date, expiring five years from the grant date.
(4) Canadian dollars.
(5) The Stock Appreciation Rights ("SARs") granted on March 10, 2009, vest over three (3) years from the Grant Date: 33% (3,300 Class A Shares) on the first anniversary of the Grant Date, 33% (3,300 Class A shares) on the second anniversary of the Grant date, and 34% (3,400 Class A Shares) on the third anniversary of the Grant Date, and expire five (5) years from the Grant Date.

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