SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 Report on Form 6-K dated September 22, 2003 Commission File No. 0-28578 DASSAULT SYSTEMES S.A. (Name of Registrant) 9, Quai Marcel Dassault, B.P. 310, 92156 Suresnes Cedex, France (Address of Principal Executive Offices) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F Form 20-F X Form 40-F __ Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): Yes ___ No X Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): Yes ___ No X Indicate by check mark whether by furnishing the information contained in this Form, the registrant is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934: Yes ___ No X If "Yes" is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82-___________ ENCLOSURES: In compliance with French law, which requires a company to update information regarding its total number of voting rights if such number varies from previously reported numbers by 5% or more, Dassault Systemes updated the information on September 12, 2003, after the conditions of the statute were met on September 4, 2003. On that date, due to the sale of 17,821,334 shares by the French State, the number of outstanding shares was 113,231,832, representing 120,595,753 voting rights. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. DASSAULT SYSTEMES S.A. Date: September 22, 2003 By: /s/ Thibault de Tersant --------------------------- Name: Thibault de Tersant Title: Executive Vice President, Finance and Administration