WASHINGTON, July 13, 2021–(BUSINESS WIRE)–Stagwell Media LP, which on July 8, 2021 entered into an amendment to the transaction agreement providing for the combination of its businesses (the “Proposed Transaction”) with MDC Partners, Inc. (“MDC”) (Nasdaq: MDCA), announced today that its subsidiary, Stagwell Marketing Group LLC (“Stagwell” or the “Company”), […]