Icosavax, Inc. acknowledged the sudden passing of Tadataka (Tachi) Yamada, M.D., co-founder and Chairman of the Board of the company, who died unexpectedly on August 4, 2021. The Board has appointed Mark McDade, an existing member of the Board, to serve as Chair. Mr. McDade has extensive public company operating experience, including having served as Executive Vice President and Chief Operating Officer of UCB S.A., a Belgium biopharmaceutical company, from 2009 until his retirement in October 2016. Mr. McDade served as chairman of the board of directors of Aimmune Therapeutics from May 2014 until its acquisition by Nestle SA in October 2020 and served on the board of directors of Dermira, Inc. from August 2014 until its acquisition by Eli Lilly in February 2020. Previously, Mr. McDade was a co-founder and ultimately served as President of Corixa Corporation, a vaccine company, which was acquired by GlaxoSmithKline plc.