 Hybrid event hosted from state-of-the-art global campus at 1 World Trade Center will unveil the worlds newest holding companys roadmap to transform marketing NEW YORK, Aug. 17, 2021 PRNewswire -- Stagwell NASDAQ: STGW announced today it will host an investor event on September 20, 2021 at 3:00 PM ET. Credentialed press are invited to register. 