Calyxt, Inc. announced that the board of directors has appointed Yves Ribeill, Ph.D., to the new role of Executive Chair of the Board effective immediately. Dr. Ribeill will serve in this role while Calyxt initiates a search for a new Chief Executive Officer to replace Jim Blome, who is leaving to pursue other opportunities. Calyxt has retained a premier executive search firm to lead the search. Based on his long experience in the biotech and innovation fields, Dr. Ribeill will help guide the CEO search on behalf of the Board and support the transition once the incoming CEO is selected. Dr. Ribeill has more than 35 years of experience in the healthcare industry, with an expertise in anti-infective diseases. Prior to moving to the U.S. 21 years ago, Dr. Ribeill held several management positions during his international career with Rhône-Poulenc and Aventis in France and in the UK.