COMBINED GENERAL SHAREHOLDERS’ MEETING OF MAY 26, 2021 Availability of preliminary documents Vélizy-Villacoublay , May 11 , 2020 – Dassault Systèmes (Euronext Paris: #13065, DSY.PA) informs its shareholders that its Combined Shareholders’ Meeting will be held in camera on Wednesday, May 26, 2021 at

Declaration of the number of outstanding shares and voting rights as of April 3 0 , 2021 Vélizy-Villacoublay (France) May 6 , 2021 – Dassault Systèmes (Euronext Paris: #13065, DSY.PA) reports below the total number of its outstanding shares and voting rights as of April 30, 2021, according to

COMBINED GENERAL SHAREHOLDERS’ MEETING OF MAY 26, 2021 Total number of voting rights and outstanding shares of the Company share capital on April 16 , 2021 , publication date of the Preliminary Notification Vélizy-Villacoublay , France, May 5 , 2021 – According to Article R.22-10-23 of the French

Dassault Systèmes R eports 202 1 F irst Quarter Results A bove the High End of Company Guidance VÉ LIZY-VILLACOUBLAY, France — April 28 , 2021 — Dassault Systèmes (Euronext Paris: #13065, DSY.PA) announces IFRS unaudited financial results for the first quarter ended March 31, 2021.

Bouygues Construction and Dassault Systèmes expand their partnership to speed up digital transformation in the construction industry Two world leaders in their sectors reconfirm their commitment to open new horizons in the construction industry, making it more efficient and sustainable Three-year

DASSAULT SYSTEMES TO PUBLISH ITS FIRST QUARTER 2021 RESULTS, WEBCAST AND CONFERENCE CALL ON APRIL 28 th , 2021        VÉLIZY-VILLACOUBLAY, France — April 13 rd , 2021 — Dassault Systèmes (Euronext Paris: #13065, DSY.PA), the 3DEXPERIENCE Company, world leader in 3D design software, 3D Digital Mock