iBio, Inc. announced that Philip K. Russell, M.D., a member of the Board of Directors and Chair of the Science and Technology Committee of the Board (the S&T Committee) notified the Board of his resignation as a director to the Company's Board for personal health reasons, effective immediately. Dr. Russell’s resignation was not due to any disagreement with the Board or any matter relating to its operations, policies or practices. Accordingly, on October 22, 2020, Alexandra Kropotova, M.D. agreed to resign from her position as a Class III director subject to her immediate reappointment as a Class II director. The Board accepted Dr. Kropotova’s resignation and immediately reappointed her as a Class II director and as a member of the S&T Committee. The resignation and reappointment of Dr. Kropotova was effected solely to rebalance the Board classes and for all other purposes, Dr. Kropotova’s service on the Board is deemed to have continued uninterrupted.