Dassault Systèmes SE

Transaction in Own Shares • Oct 1, 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: September 24 to September 29, 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	24-Sep-21	FR0014003TT8	44 927	49,4998	XPAR
DASSAULT SYSTEMES	96950065LBWY0APQIM86	24-Sep-21	FR0014003TT8	15 890	49,4999	DXE
DASSAULT SYSTEMES	96950065LBWY0APQIM86	24-Sep-21	FR0014003TT8	5 324	49,4952	TQE
DASSAULT SYSTEMES	96950065LBWY0APQIM86	27-Sep-21	FR0014003TT8	298 278	48,5524	XPAR
DASSAULT SYSTEMES	96950065LBWY0APQIM86	27-Sep-21	FR0014003TT8	94 260	48,8411	DXE
DASSAULT SYSTEMES	96950065LBWY0APQIM86	27-Sep-21	FR0014003TT8	24 775	48,8099	TQE
DASSAULT SYSTEMES	96950065LBWY0APQIM86	28-Sep-21	FR0014003TT8	316 394	45,9835	XPAR
DASSAULT SYSTEMES	96950065LBWY0APQIM86	28-Sep-21	FR0014003TT8	102 469	45,9667	DXE
DASSAULT SYSTEMES	96950065LBWY0APQIM86	28-Sep-21	FR0014003TT8	26 665	45,9120	TQE
DASSAULT SYSTEMES	96950065LBWY0APQIM86	29-Sep-21	FR0014003TT8	331 346	46,0318	XPAR
DASSAULT SYSTEMES	96950065LBWY0APQIM86	29-Sep-21	FR0014003TT8	110 477	46,0241	DXE
DASSAULT SYSTEMES	96950065LBWY0APQIM86	29-Sep-21	FR0014003TT8	29 475	46,0361	TQE

(*)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