On April 19, 2021, Graziano Seghezzi, a member of the board of directors (the “Board”) of HOOKIPA Pharma Inc. (the “Company”), notified the Company that he will not stand for reelection to the Board when his term expires at the Company’s 2021 annual meeting of shareholders on June 1, 2021 (the “2021 Annual Meeting”). Mr. Seghezzi’s departure from the Board is not due to any disagreement with the Company. Mr. Seghezzi will continue to serve as a member of the Board and a member of the Compensation Committee of the Board until the 2021 Annual Meeting, when his resignation will be deemed effective.