On January 26, 2021, De Lyle Bloomquist, a member of the Board of Directors (the Board") of PDS Biotechnology Corporation, notified the Company that he would retire from service on the Board, and not stand for re-election, when his current term expires at the Company's 2021 annual meeting of stockholders. Mr. Bloomquist will continue to serve as a director until the Annual Meeting. Mr. Bloomquist's decision to retire and not stand for re-election was not associated with or attributable to any dispute or disagreement with the Company, its management or the Board on any matter relating to the Company's operations, policies or practices, or otherwise.