UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
 
FORM 8-K
 
Current Report Pursuant to Section 13
of the Securities Exchange Act of 1934
 
Date of Report (Date Earliest Event reported) — December 18, 2009
 
MDC PARTNERS INC.
(Exact name of registrant as specified in its charter)

     
Canada
(Jurisdiction of Incorporation)
001-13718
(Commission File Number)
 
98-0364441
(IRS Employer Identification No.)
 
45 Hazelton Ave., Toronto, Ontario, Canada M5R 2E3
(Address of principal executive offices and zip code)
 
(416) 960-9000
(Registrant’s Telephone Number)
 
 
Check the appropriate box below if the Form 8−K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):
 
o
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
 
o
Soliciting material pursuant to Rule 14a−12 under the Exchange Act (17 CFR 240.14a−12)
 
o
Pre−commencement communications pursuant to Rule 14d−2(b) under the Exchange Act (17 CFR 240.14d−2(b))
 
o
Pre−commencement communications pursuant to Rule 13e−4(c) under the Exchange Act (17 CFR 240.13e− 4(c))
 
 
Item 7.01. Regulation FD Disclosure.
 
On December 18, 2009, MDC Partners Inc. (the “Company”) posted the supplemental financial information attached as Exhibit 99.1 on its web site (www.mdc-partners.com). Summary financial information concerning the Company's reclassified reportable segments is shown in the tables set forth in Exhibit 99.1. This is supplemental to the financial information disclosed in the Company’s previously filed Form 8-k on December 10, 2009.
 
The foregoing information (including the exhibits hereto) is being furnished under “Item 7.01. Regulation FD Disclosure.”  Such information (including the exhibits hereto) shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such filing.
 
Item 9.01. Financial Statements and Exhibits.
 
(c) Exhibits.
 
99.1
Supplemental Financial Information.
 
Signatures

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed by the undersigned hereunto duly authorized.

       
Date:  December 18, 2009
  
MDC Partners Inc.
       
   
By:
/s/ Mitchell Gendel
Mitchell Gendel,
General Counsel & Corporate Secretary