Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from ______________ to ______________ Commission File Number: 001-13718 Stagwell Inc. (Exact name of registrant as specified in its charter) Delaware 86 ...

Stagwell Inc. (NASDAQ:STGW) Q3 2021 Earnings Conference Call November 3, 2021 8:30 AM ET Company Participants Frank Lanuto - Chief Financial Officer Mark Penn - Chairman & Chief Executive Officer Conference Call Participants Operator Thank you and good morning everyone. Welcome to the Stagwell Inc. Conference Call for the Third Quarter of 2021. On today's call, Mark Penn, Chairman and Chief Executive Officer, will first provide an overview of Stagwell's third quarter results, followed by a review of financi ...

Stagwell Inc. (NASDAQ:STGW) Q2 2021 Earnings Conference Call August 4, 2021 8:30 AM ET Company Participants Michaela Pewarski - VP, IR Mark Penn - Chairman and CEO Jay Leveton - President Frank Lanuto - CFO Ryan Greene - COO Conference Call Participants Operator Good day, everyone, and welcome to today's MDC Partners Stagwell Global Earnings Call. At this time, all participants are in a listen-only mode. Later, you will have an opportunity to ask questions during the question-and-answer session. [Operator I ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from ______________ to ______________ Commission File Number: 001-13718 Stagwell Inc. (Exact name of registrant as specified in its charter) Delaw ...

(Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2021 Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from ______________ to ______________ Commission File Number: 001-13718 MDC Partners Inc. (Exact name of registrant as specified in its charter) ...

MDC Partners Inc. (MDCA) Q1 2021 Results Conference Call May 5, 2021 8:30 AM ET Company Participants Michaela Pewarski - VP, IR Mark Penn - Chairman and CEO Frank Lanuto - CFO David Ross - General Counsel Irwin Simon - Lead Independent Director of Board and Chair of the Special Committee of Independent Members of the Board Conference Call Participants Tom White - D.A. Davidson Operator Good day, and welcome to the MDC Partners First Quarter Results Conference call. [Operator Instructions] Please note this e ...

CCOOPartners Management Presentation First Quarter 2021 Results May 5, 2021 FORWARD LOOKING STATEMENTS & OTHER INFORMATION 2 This presentation contains forward-looking statements. Statements in this presentation that are not historical facts, including without limitation the information under the heading "Financial Outlook" and statements about the Company's beliefs and expectations, earnings (loss) guidance, recent business and economic trends, potential acquisitions, and estimates of amounts for redeemabl ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Fiscal Year Ended December 31, 2020 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from _____ to ______ Commission File Number 001-13718 MDC PARTNERS INC. (Exact Name of Registrant as Specified in Its Charter) (State or Other Jurisdiction of Incor ...

8 MDC Partners STAGWELL t TRANSFORMING MARKETING FORWARD LOOKING INFORMATION & OTHER INFORMATION Cautionary Statement Regarding Forward-Looking Statements This communication may contain certain forward-looking statements (collectively, "forward-looking statements") within the meaning of Section 27A of the U.S. Securities Act of 1933, as amended and Section 21E of the U.S. Exchange Act and the United States Private Securities Litigation Reform Act of 1995, as amended, and "forward-looking information" under ...

MDC Partners, Inc. (MDCA) Q4 2020 Earnings Conference Call March 2, 2021 8:30 AM ET Company Participants Alexandra Ewing - Chief Communication Officer Mark Penn - Chairman and Chief Executive Officer Frank Lanuto - Chief Financial Officer Conference Call Participants Avi Steiner - JPMorgan Operator Good day, and welcome to the MDC Partners Fourth Quarter and Year-End Results Conference Call. All participants will be in a listen-only mode. After today’s presentation there will be an opportunity to ask questi ...