Vélizy-Villacoublay, June 22, 2022                                     Disclosure of trading in own shares                     (Repurchase program decided by the General Meeting of Shareholders of May 19, 2022)        

                                                                                Vélizy-Villacoublay, June 16, 2022                                     Disclosure of trading in own shares                     (Repurchase program decided by the General Meeting of Shareholders of May 19, 2022)        

Press Release VELIZY-VILLACOUBLAY — June 16, 2022 Dassault Systèmes ’ Capital Markets Day : On T rajectory to A chieve 2024 Objectives, Outlining Long-Term Growth Opportunities Dassault Systèmes (Euronext Paris: FR0014003TT8, DSY.PA) will host its 2022 Capital Markets Day at the company’s

                                                                                Vélizy-Villacoublay, June 9, 2022                                     Disclosure of trading in own shares                     (Repurchase program decided by the General Meeting of Shareholders of May 19, 2022)          

Press Release VELIZY-VILLACOUBLAY, France — June 6 , 2022 Declaration of the number of outstanding shares and voting rights as of May 31 , 202 2 Dassault Systèmes (Euronext Paris: FR0014003TT8, DSY.PA) today announced below the total number of its outstanding shares and voting rights as of May 31,

                                                                                                        Vélizy-Villacoublay, June 2, 2022             Disclosure of trading in own shares                     (Repurchase program decided by the General Meeting of Shareholders of May 19, 2022)