Dassault Systèmes SE

Transaction in Own Shares • Dec 27, 2021

Vélizy-Villacoublay, December 27, 2021

DISCLOSURE OF TRADING IN OWN SHARES

(Repurchase program decided by the General Meeting of Shareholders of May 26, 2021)

Issuer: Dassault Systèmes SE Type of securities: ordinary shares Period: December 20 to December 24, 2021

Detailed information (presentation by day and by market and transaction-by-transaction details) can be consulted on the website of Dassault Systèmes: https://investor.3ds.com/regulated-information/permanent-information

Presentation of the trading in own shares by day and by market

Name of issuer	Identification code of the issuer	Date of trading	Identification code of the financial instrument	Daily total volume (in number of shares)	Daily weighted average acquisition price of the shares*	Market
DASSAULT SYSTEMES	96950065LBWY0APQIM86	20-Dec-21	FR0014003TT8	7 786	50,7781	XPAR
DASSAULT SYSTEMES	96950065LBWY0APQIM86	20-Dec-21	FR0014003TT8	1 003	50,8585	DXE

(*)The weighted average unit price is a rounded price

CONTACTS: Dassault Systèmes: Investor Relations François-José Bordonado/Béatrix Martinez +33 1 61 62 69 24