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Form SC 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0001140361-10-004006
Filing Date
2010-02-03
Accepted
2010-02-03 17:02:13
Documents
1

Document Format Files

Seq Description Document Type Size
1 WILLIAM BLAIR & COMPANY SC 13GA 12-31-2009 formsc13ga.htm SC 13G/A 86536
  Complete submission text file 0001140361-10-004006.txt   88769
Mailing Address MDC PARTNERS INC. - LEGAL DEPT. 950 THIRD AVENUE NEW YORK NY 10022
Business Address 45 HAZELTON AVE TORONTO A6 M5R 2E3 646 429 1800
MDC PARTNERS INC (Subject) CIK: 0000876883 (see all company filings)

IRS No.: 980364441 | State of Incorp.: A6 | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-53561 | Film No.: 10571387
SIC: 7311 Services-Advertising Agencies

Mailing Address 222 WEST ADAMS CHICAGO IL 60606
Business Address 222 WEST ADAMS ST 34TH FLOOR CHICAGO IL 60606-5312 3122361600
BLAIR WILLIAM & CO/IL (Filed by) CIK: 0000902367 (see all company filings)

IRS No.: 362214610 | State of Incorp.: IL | Fiscal Year End: 1231
Type: SC 13G/A
SIC: 0000