1 March 2019: KOL Investors Event focussed on Charcot-Marie-Tooth disease in Paris

9-10 April 2019: Participation in the Portzamparc MidCap Conference in Paris

16 April 2019: Individual Shareholders Meeting in Lyon

30 April 2019: Individual Shareholders Meeting in Rennes

13 May 2019: Presentation at the Cercle Actualités Boursières in Lyon

23 May 2019: Gilbert Dupont 17th Annual Healthcare Conference in Paris

28 May 2019: Individual Shareholders Meeting in Lille