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 * ROSENBERG GRAHAM LAWRENCE   2. Issuer Name and Ticker or Trading Symbol MDC PARTNERS INC [MDCA] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Managing Director (Last) (First) (Middle) C/O MDC PARTNERS INC., 45 HAZELTON AVENUE 3. Date of Earliest Transaction (Month/Day/Year) 03/05/2009 (Street) TORONTO ONTARIO CANADA, 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               58,302 (1) D   Class A Shares               19,128 (2) I See FN (2) Class A Shares 03/05/2009   F   12,051 D $ 2.99 46,251 (1) (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

Stock Options

$ 8.4 (4)

07/31/2003

04/09/2012

Class A Shares

47,625

47,625

D

Stock Appreciation Rights (5)

$ 3.72

02/12/2010

02/12/2014

Class A Shares

172,759

172,759

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
ROSENBERG GRAHAM LAWRENCE C/O MDC PARTNERS INC. 45 HAZELTON AVENUE TORONTO ONTARIO CANADA, A6 M5R 2E3			Managing Director

Signatures

/s/ Graham L. Rosenberg		03/10/2009
**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 unvested Restricted Stock Units (Class A Shares) of the Issuer, a portion of which are subject to achievement by the Issuer of financial performance targets.
(2)	Owned by the spouse of the Reporting Person in an account over which the Reporting Person has trading authority.
(3)	A total of 12,964 shares of Restricted Stock Units (Class A Shares) granted in 2007, and 13,427 shares of Restricted Stock Units (Class A Shares) granted in 2008, vested on March 5, 2009. The Reporting Person elected to have 12,051 Class A Shares withheld by the Issuer to satisfy tax withholding requirements.
(4)	Canadian dollars.
(5)	SAR's granted February 12, 2009, vest 33% on the first anniversary of the grant date, 33% on the second anniversary of the grant date, and 34% on the third anniversary of the grant date, and expire on February 12, 2014. These SAR's may be settled in cash or stock, at the discretion of the Issuer.

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