On February 27, 2024, Scott E. Royer notified Vaccinex Inc. of his decision to retire from his position as the Company?s Chief Financial Officer effective March 14, 2024. Mr. Royer?s retirement and resignation is not due to any disagreement with the Company on any matter relating to the Company?s boperations, policies or practices or to any issues regarding its accounting or financial policies or practices. Upon his retirement, Mr. Royer will cease serving as Principal Financial Officer.

Pursuant to the Company?s succession plan for Mr. Royer, effective upon Mr. Royer?s retirement on March 14, 2024, Jill Sanchez, age 52, will serve as the Company?s Interim Chief Financial Officer and as its Principal Financial Officer. Ms. Sanchez is a CPA and has served the Company faithfully and efficiently for eight years most recently as the Company?s Controller since January 2019. There are no family relationships among Ms. Sanchez and any of its directors and executive officers and there are no arrangements or understandings between her and any other persons pursuant to which she was appointed as the Company?s Chief Financial Officer.