3DS: Half-year statement of the liquidity contract entered into with Oddo BHF SCA

Press Release

VELIZY-VILLACOUBLAY, France — July 6, 2026

Half-year statement of the Liquidity contract entered into with Oddo BHF SCA

Dassault Systèmes (Euronext Paris: FR0014003TT8, DSY.PA) announces that the following resources appeared on June 30, 2026 on the liquidity contract entered into with Oddo BHF SCA implemented on January 7, 2015 and updated on June 18, 2019:

It is reminded that:

From January 1, 2026 to June 30, 2026 the following transactions have been carried out:

During the same period, the volume of securities traded, amounted to:

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Dassault Systèmes is a catalyst for human progress. Since 1981, the company has pioneered virtual worlds to improve real life for consumers, patients and citizens. Through the 3DEXPERIENCE platform,

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Dassault Systèmes Investor Relations Team FTI Consulting

Marie Dumas: Arnaud de Cheffontaines: +33 1 47 03 69 48

+33 1 61 62 70 92 Jamie Ricketts: +44 20 3727 1600

investors@3ds.com

Dassault Systèmes Press Contacts

Corporate / France

Arnaud Malherbe / Déborah Cobbi

+33 1 61 62 87 73 / +33 1 61 62 70 83

arnaud.malherbe@3ds.com / deborah.cobbi@3ds.com

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