Declaration of the number of outstanding shares and
voting rights as of September 30, 2020

Vélizy-Villacoublay (France) October 6, 2020 – Dassault Systèmes (Euronext Paris: #13065, DSY.PA) reports below the total number of its outstanding shares and voting rights as of September 30, 2020, according to articles 223-16 and 221-3 of the General Regulation of the Autorité des marchés financiers.

                                                                                                                                                   
Number of outstanding shares: 264,919,418
                                                                                  

Number of voting rights*: 396,990,201

*The total number of voting rights is calculated on the basis of the total number of outstanding shares, even if the voting rights attached thereto are suspended, pursuant to Article 223-11 of the General Regulation of the Autorité des marchés financiers relating to the method for calculating the percentages of holdings in shares and in voting rights. We invite our shareholders to refer to this article should they need to declare crossing of thresholds.

Declarations related to crossing of threshold must be sent to:
Dassault Systèmes, Investors Relations Service, 10, rue Marcel Dassault, CS 40501, 78946 Vélizy-Villacoublay Cedex (France). E-mail address: Investors@3ds.com

CONTACTS:

Dassault Systèmes/Investors Relations:                                           
François-José Bordonado/Béatrix Martinez
+ 33 1 6162 6924

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• Dassault Systèmes: declaration of the number of outstanding shares and voting rights as of September 30, 2020