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 *
Doft David B.
   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)
Chief Financial Officer
(Last)
(First)
(Middle)
C/O MDC PARTNERS INC., 950 THIRD AVENUE		 3. Date of Earliest Transaction (Month/Day/Year)
03/30/2011
(Street)

NEW YORK, NY 10022		 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               1,000 (1) I See FN
Class A Shares 03/30/2011   S   10,000 D $ 16.37 (2) 106,179 (3) D  
Class A Shares 03/31/2011   S   5,000 D $ 16.54 (2) 101,179 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 Appreciation Rights (4) $ 3.72             02/12/2010 02/12/2014 Class A Shares 128,205   128,205 D  
Extraordinary Equity Value Appre. Restricted Stock Awards (5) (5)               (5) 12/31/2013 Restricted Stock 45,000   45,000 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Doft David B.
C/O MDC PARTNERS INC.
950 THIRD AVENUE
NEW YORK, NY 10022		       Chief Financial Officer  

Signatures

 /s/ David B. Doft   03/31/2011
**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) Held in a UTMA account for benefit of a minor child of the Reporting Person.
(2) The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $16.32 to $16.50 on March 30, 2011 and $16.50 to $16.60 on March 31, 2011, inclusive. The reporting person undertakes to provide to MDC Partners Inc., any security holder of MDC Partners Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (3) to this Form 4.
(3) In connection with the referenced sale, the Reporting Person has reconfirmed his commitment to continue to comply with the Company's Stock Ownership Guidelines. The sale by the Reporting Person represents less than 15% of such individual's holdings, and was made for portfolio diversification purposes.
(4) SARs granted February 12, 2009, vested 33% on the first anniversary of the grant date, 33% vest on the second anniversary of the grant date, and 34% vest on the third anniversary of the grant date, and all expire on February 12, 2014. These SARs may be settled in cash or stock, at the discretion of the Issuer.
(5) These Extraordinary Equity Value Appreciation Restricted Stock Awards ("EVARs") granted under the Issuer's EVARs program (previously disclosed by the Issuer on Form 8-K dated January 26, 2011) represent the right to receive shares of Restricted Stock on a one-to-one basis upon the Issuer's achievement of stock price targets equal to $20.00 (15,000 EVARs), $22.75 (15,000 EVARs) and $26.25 (15,000 EVARs), as described in greater detail in the EVAR Letter Agreement.

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