DASSAULT SYSTEMES TO PUBLISH ITS THIRD QUARTER 2019 RESULTS, WEBCAST AND CONFERENCE CALL ON OCTOBER 24 th , 2019     VÉLIZY-VILLACOUBLAY, France — October 10 th , 2019 — Dassault Systèmes (Euronext Paris: #13065, DSY.PA), the 3DEXPERIENCE Company, world leader in 3D design software, 3D Digital Mock

Declaration of the number of outstanding shares and voting rights as of September 30, 2019 Vélizy-Villacoublay (France) October 3, 2019 – Dassault Systèmes (Euronext Paris: #13065, DSY.PA) reports below the total number of its outstanding shares and voting rights as of September 30, 2019, according

Dassault Systèmes announces extension of CFIUS review process for planned acquisition of Medidata VÉLIZY-VILLACOUBLAY, France and NEW YORK — September 24, 2019 – Dassault Systèmes SE (Dassault Systèmes) (Euronext Paris: #13065, DSY. PA) and Medidata Solutions, Inc.

Declaration of the number of outstanding shares and voting rights as of August 31, 2019 Vélizy-Villacoublay (France) September 10, 2019 – Dassault Systèmes (Euronext Paris: #13065, DSY.PA) reports below the total number of its outstanding shares and voting rights as of August 31, 2019, according to

NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION TO ANY U.S. PERSON OR IN OR INTO CANADA, JAPAN, AUSTRALIA OR THE UNITED STATES OR ANY OTHER JURISDICTION WHERE IT IS UNLAWFUL TO RELEASE, PUBLISH OR DISTRIBUTE THIS PRESS RELEASE   Dassault Systèmes successfully prices €3.65 billion bonds PARIS, France –

Dassault Systèmes assigned a rating of A- / Stable by S&P Global Ratings PARIS, France – August 27, 2019 – Dassault Systèmes, the 3D EXPERIENCE Company, world leader in 3D design software, 3D Digital Mock Up and Product Lifecycle Management (PLM) solutions, today announces that it has received its