Declaration of the number of outstanding shares and voting rights as of April 30, 2019 Vélizy-Villacoublay (France) May 10, 2019 – Dassault Systèmes (Euronext Paris: #13065, DSY.PA) reports below the total number of its outstanding shares and voting rights as of April 30, 2019, according to

Dassault Systèmes General Shareholders’ Meeting of May 23, 2019 Availability of preliminary documents Vélizy-Villacoublay, France, May 3, 2019 – Dassault Systèmes (Euronext Paris: #13065, DSY.PA) informs its shareholders that its Combined Shareholders’ Meeting will be held on Thursday, May 23, 2019

Dassault Systèmes and BHP Engage in a Long-Term Strategic Partnership Companies to leverage the application of digital technologies to mining Ambition to unlock value by applying technologies proven in other industries to core mining fundamentals Partnership intends to create new level of

VÉLIZY-VILLACOUBLAY, France — April 24, 2019 — Dassault Systèmes (Euronext Paris: #13065, DSY.PA), announces IFRS unaudited financial results for the first quarter ended March 31, 2019. These results were reviewed by the Company’s Board of Directors on April 23, 2019.  This press release also includes financial information on a non-IFRS basis with reconciliations included in the Appendix to this communication. All IFRS and non-IFRS figures are presented in compliance with IFRS 15 and IFRS 16 standards.

DASSAULT SYSTEMES SCHEDULES FIRST QUARTER 2019 RESULTS WEBCAST AND CONFERENCE CALL FOR APRIL 24 th 2019     VÉLIZY-VILLACOUBLAY, France — April 10 th , 2019 — Dassault Systèmes (Euronext Paris: #13065, DSY.PA), the 3DEXPERIENCE Company, world leader in 3D design software, 3D Digital Mock Up and

Declaration of the number of outstanding shares and voting rights as of March 31, 2019 Vélizy-Villacoublay (France) April 5, 2019 – Dassault Systèmes (Euronext Paris: #13065, DSY.PA) reports below the total number of its outstanding shares and voting rights as of March 31, 2019, according to