Stagwell reclassifies Class B stock into Class A at 1.25:1 ratio effective April 17, 2023

On April 17, 2023, Stagwell Inc., a Delaware corporation (the “ Company ”), filed a Certificate of Amendment (the “ Amendment ”) to its Second Amended and Restated Certificate of Incorporation with the Secretary of State of the State of Delaware. Pursuant to the Amendment, each share of Class B common stock, par value $0.001 per share (the “ Class B Common Stock ”) issued and outstanding or held by the Company as of immediately prior to the filing of the Amendment with the Secretary of State of the State of Delaware was automatically reclassified as and converted into 1.25 shares of Class A common stock, par value $0.001 per share (the “ Class A Common Stock ”) with any fractional shares to which a holder of Class B Common Stock would have been entitled rounded up to the nearest whole share of Class A Common Stock.