DASTF / Dassault Systèmes SE - Pemfailan SEC, Laporan Tahunan, Penyata Proksi

Dassault Systèmes SE
US ˙ OTCPK

Statistik Asas
LEI 96950065LBWY0APQIM86
CIK 1016118
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Dassault Systèmes SE
SEC Filings (Chronological Order)
Halaman ini menyediakan senarai kronologi lengkap bagi Pemfailan SEC, tidak termasuk pemfailan pemilikan yang kami sediakan di tempat lain.
November 17, 2017 SC TO-T/A

DASTY / Dassault Systemes SA SC TO-T/A

SC TO-T/A 1 a17-264382sctota.htm SC TO-T/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO/A (Amendment No. 4) Tender Offer Statement Under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 Exa Corporation (Name of Subject Company (Issuer)) 3DS Acquisition 3 Corp., Dassault Systemes Simulia Corp. and Dassault Systèmes S.E. (Name of Filing Persons (Offerors)

November 17, 2017 EX-99.(A)(5)(F)

Dassault Systèmes Successfully Completes Tender Offer for Exa Corporation

Exhibit (a)(5)(F) Dassault Syst?mes Successfully Completes Tender Offer for Exa Corporation VELIZY-VILLACOUBLAY, France ? November 17, 2017 ? Dassault Syst?mes (Euronext Paris: #13065, DSY.

November 13, 2017 SC TO-T/A

DASTY / Dassault Systemes SA SC TO-T/A

SC TO-T/A 1 a17-264381sctota.htm SC TO-T/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO/A (Amendment No. 3) Tender Offer Statement Under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 Exa Corporation (Name of Subject Company (Issuer)) 3DS Acquisition 3 Corp., Dassault Systemes Simulia Corp. and Dassault Systèmes S.E. (Name of Filing Persons (Offerors)

November 13, 2017 EX-99.(A)(5)(E)

Dassault Systèmes Announces Extension of Tender Offer for All Outstanding Shares of Exa Corporation

Exhibit 99.(a)(5)(E) Dassault Syst?mes Announces Extension of Tender Offer for All Outstanding Shares of Exa Corporation VELIZY-VILLACOUBLAY, France ? November 10, 2017 ? Dassault Syst?mes (Euronext Paris: #13065, DSY.PA) today announces that its wholly owned subsidiaries, Dassault Systemes Simulia Corp. (?Parent?) and 3DS Acquisition 3 Corp. (?Purchaser?), have extended the expiration date of the

October 25, 2017 SC TO-T/A

Dassault Systemes SC TO-T/A

SC TO-T/A 1 a17-2259012sctota.htm SC TO-T/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO/A (Amendment No. 2) Tender Offer Statement Under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 Exa Corporation (Name of Subject Company (Issuer)) 3DS Acquisition 3 Corp., Dassault Systemes Simulia Corp. and Dassault Systèmes S.E. (Name of Filing Persons (Offerors)

October 20, 2017 SC TO-T/A

DASTY / Dassault Systemes SA SC TO-T/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO/A (Amendment No. 1) Tender Offer Statement Under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 Exa Corporation (Name of Subject Company (Issuer)) 3DS Acquisition 3 Corp., Dassault Systemes Simulia Corp. and Dassault Syst?mes S.E. (Name of Filing Persons (Offerors) Common Stock, par value $0.001 per share (T

October 12, 2017 EX-99.(A)(5)(D)

Dassault Systèmes' Tender Offer for Exa Corporation Commences

QuickLinks - Click here to rapidly navigate through this document EXHIBIT (a)(5)(D) Dassault Syst?mes' Tender Offer for Exa Corporation Commences VELIZY-VILLACOUBLAY, France?October 12, 2017?Dassault Syst?mes (Euronext Paris: #13065, DSY.

October 12, 2017 EX-99.(D)(3)

[Signature Page Follows]

QuickLinks - Click here to rapidly navigate through this document EXHIBIT (d)(3) Exa Corporation Mr.

October 12, 2017 SC TO-T

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statement Under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 Exa Corporation (Name of Subject Company (Issuer)) 3DS Acquisition 3 Corp., Dassaul

QuickLinks - Click here to rapidly navigate through this document SECURITIES AND EXCHANGE COMMISSION Washington, D.

October 12, 2017 EX-99.(A)(1)(B)

Letter of Transmittal To Tender Shares of Common Stock of Exa Corporation Pursuant to the Offer to Purchase Dated October 12, 2017 by 3DS Acquisition 3 Corp., Dassault Systemes Simulia Corp. and Dassault Systèmes S.E.

QuickLinks - Click here to rapidly navigate through this document EXHIBIT (a)(1)(B) Letter of Transmittal To Tender Shares of Common Stock of Exa Corporation Pursuant to the Offer to Purchase Dated October 12, 2017 by 3DS Acquisition 3 Corp.

October 12, 2017 EX-99.(A)(1)(E)

Offer to Purchase for Cash All Outstanding Shares of Common Stock of Exa Corporation at $24.25 Per Share by 3DS Acquisition 3 Corp., Dassault Systemes Simulia Corp. and Dassault Systèmes S.E.

QuickLinks - Click here to rapidly navigate through this document EXHIBIT (a)(1)(E) Offer to Purchase for Cash All Outstanding Shares of Common Stock of Exa Corporation at $24.

October 12, 2017 EX-99.(A)(1)(C)

Notice of Guaranteed Delivery For Tender of Shares of Common Stock of Exa Corporation at $24.25 Per Share by 3DS Acquisition 3 Corp., Dassault Systemes Simulia Corp. and Dassault Systèmes S.E.

QuickLinks - Click here to rapidly navigate through this document EXHIBIT (a)(1)(C) Notice of Guaranteed Delivery For Tender of Shares of Common Stock of Exa Corporation at $24.

October 12, 2017 EX-99.(A)(1)(D)

Offer to Purchase for Cash All Outstanding Shares of Common Stock of Exa Corporation at $24.25 Per Share by 3DS Acquisition 3 Corp., Dassault Systemes Simulia Corp. and Dassault Systèmes S.E.

QuickLinks - Click here to rapidly navigate through this document EXHIBIT (a)(1)(D) Offer to Purchase for Cash All Outstanding Shares of Common Stock of Exa Corporation at $24.

October 12, 2017 EX-99.(A)(1)(F)

Notice of Offer to Purchase for Cash All Outstanding Shares of Common Stock of Exa Corporation at $24.25 Per Share by 3DS Acquisition 3 Corp., Dassault Systemes Simulia Corp. and Dassault Systèmes S.E.

QuickLinks - Click here to rapidly navigate through this document EXHIBIT (a)(1)(F) This announcement is neither an offer to purchase nor a solicitation of an offer to sell Shares (as defined below).

October 12, 2017 EX-99.(D)(2)

* * * * *

QuickLinks - Click here to rapidly navigate through this document EXHIBIT (d)(2) CONFIDENTIAL July 1, 2017 Dassault Syst?mes S.

October 12, 2017 EX-99.(A)(1)(A)

Offer To Purchase For Cash All Outstanding Shares Of Common Stock of Exa Corporation at $24.25 Per Share by 3DS Acquisition 3 Corp., Dassault Systemes Simulia Corp. and Dassault Systèmes S.E.

QuickLinks - Click here to rapidly navigate through this document EXHIBIT (a)(1)(A) Offer To Purchase For Cash All Outstanding Shares Of Common Stock of Exa Corporation at $24.

October 2, 2017 EX-99.(A)(5)(C)

DASSAULT SYSTEMES and EXA Corporation EXA Definitive Purchase Agreement Joint Conference Call September 28, 2017

Exhibit (a)(5)(c) DASSAULT SYSTEMES and EXA Corporation EXA Definitive Purchase Agreement Joint Conference Call September 28, 2017 Operator: Thank you for standing by and welcome to the Dassault Syst?mes and Exa Corporation September 28, 2017 conference call.

October 2, 2017 SC TO-C

Dassault Systemes SC TO-C

SC TO-C 1 a17-225903sctoc.htm SC TO-C SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statement Under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 Exa Corporation (Name of Subject Company) 3DS Acquisition 3 Corp., Dassault Systemes Simulia Corp. and Dassault Systèmes S.E. (Name of Filing Persons (Offerors)) Common Stock, par value $0.001 pe

September 28, 2017 EX-99.(A)(5)(A)

Dassault Systèmes to Acquire Exa Corporation

Exhibit 99.(a)(5)(A) Dassault Syst?mes to Acquire Exa Corporation ? Strengthens Simulation Portfolio with Next Generation Fluid Dynamics Capabilities on the 3DEXPERIENCE Platform ? Proven Technology and Industrialized Solutions Available to Customers in All Industries ? Companies? Complementary Strengths Expand Power of Digital Engineering Throughout Value-Chain VELIZY-VILLACOUBLAY, France ? Septe

September 28, 2017 SC TO-C

Dassault Systemes SC TO-C

SC TO-C 1 a17-225901sctoc.htm SC TO-C SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statement Under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 Exa Corporation (Name of Subject Company) 3DS Acquisition 3 Corp., Dassault Systemes Simulia Corp. and Dassault Systèmes S.E. (Name of Filing Persons (Offerors)) Common Stock, par value $0.001 pe

September 28, 2017 EX-99.(A)(5)(B)

DASSAULT SYSTEMES and EXA Corporation EXA Definitive Purchase Agreement Joint Conference Call September 28, 2017

Exhibit (a)(5)(B) DASSAULT SYSTEMES and EXA Corporation EXA Definitive Purchase Agreement Joint Conference Call September 28, 2017 Final Beatrix Martinez Dassault Syst?mes Director, Investor Relations Thank you for participating in this conference call regarding the proposed acquisition of Exa Corporation.

August 7, 2015 424B3

AMERICAN DEPOSITARY RECEIPT AMERICAN DEPOSITARY SHARES ORDINARY SHARES DASSAULT SYSTÈMES S. E. (Incorporated under the laws of France)

Unassociated Document Rule 424(b)(3) 333-195840 No. of ADSs: Number Each ADS represents One Share CUSIP: AMERICAN DEPOSITARY RECEIPT evidencing AMERICAN DEPOSITARY SHARES representing ORDINARY SHARES of DASSAULT SYST?MES S. E. (Incorporated under the laws of France) JPMORGAN CHASE BANK, N.A., a national banking association organized under the laws of the United States of America, as depositary her

May 9, 2014 EX-99.(F)

POWER OF ATTORNEY

EXHIBIT F POWER OF ATTORNEY Reference is hereby made to the proposed registration by Dassault Systèmes, under the U.

May 9, 2014 EX-99.(A)

TABLE OF CONTENTS

J.P.Morgan J.P.Morgan TABLE OF CONTENTS Page PARTIES 1 RECITALS 1 Section 1. Certain Definitions (a) ADR Register 1 (b) ADRs; Direct Registration ADRs 1 (c) ADS 2 (d) Custodian 2 (e) Deliver, execute, issue et al. 2 (f) Delivery Order 2 (g) Deposited Securities 2 (h) Direct Registration System 2 (i) Holder 2 (j) Securities Act of 1933 2 (k) Securities Exchange Act of 1934 2 (l) Shares 3 (m) Transf

May 9, 2014 F-6EF

-

As filed with the U.S. Securities and Exchange Commission on May 9, 2014 Registration No. 333- SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM F-6 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 For Depositary Shares Evidenced by American Depositary Receipts Dassault Systèmes S.A. (Exact name of issuer of deposited securities as specified in its charter) n/a (Translation of

May 9, 2014 EX-99.(E)

Certification under Rule 466

Certification under Rule 466 The depositary, JPMorgan Chase Bank, N.A., represents and certifies the following: (1) That it previously had filed a registration statement on Form F-6 (Dassault Systèmes S.A. 333-05086) that the Commission declared effective, with terms of deposit identical to the terms of deposit of this registration statement. (2) That its ability to designate the date and time of

May 9, 2014 EX-99.(D)

Ziegler, Ziegler & Associates LLP Counselors at Law 570 Lexington Avenue, 44th Floor New York, New York 10022 (212) 319-7600 Telecopier (212) 319-7605 May 9, 2014

Ziegler, Ziegler & Associates LLP Counselors at Law 570 Lexington Avenue, 44th Floor New York, New York 10022 (212) 319-7600 Telecopier (212) 319-7605 May 9, 2014 JPMorgan Chase Bank, N.

April 29, 2014 SC TO-T/A

- AMENDMENT NO. 13

SC TO-T/A 1 sctota.htm AMENDMENT NO. 13 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statement under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 (Amendment No. 13) ACCELRYS, INC. (Name of Subject Company (Issuer)) 3DS ACQUISITION CORP. (Offeror) A Wholly Owned Direct Subsidiary of DASSAULT SYSTEMES AMERICAS CORP. (Offeror)

April 29, 2014 EX-99.(A)(5)(II)

Dassault Systèmes Successfully Completes Tender Offer for Accelrys

Exhibit (a)(5)(II) Dassault Systèmes Successfully Completes Tender Offer for Accelrys VÉLIZY-VILLACOUBLAY, France — April 29, 2014 — Dassault Systèmes (Euronext Paris: #13065, DSY.

April 24, 2014 EX-99.(A)(5)(BB)

Proposed Acquisition of Accelrys by Dassault Systèmes Cleared by CFIUS

Exhibit (a)(5)(BB) Proposed Acquisition of Accelrys by Dassault Systèmes Cleared by CFIUS VÉLIZY-VILLACOUBLAY, France — April 24, 2014 — Dassault Systèmes (Euronext Paris: #13065, DSY.

April 24, 2014 EX-99.(A)(5)(CC)

Dassault Syst

Exhibit (a)(5)(CC) Dassault Systèmes has updated its website at http://www.3ds.com/accelrys-tender-offer/. The updated website includes the information filed herewith. Dassault Systèmes and Accelrys to Join Forces Important information On February 13, 2014, Dassault Systèmes filed with the SEC a tender offer statement on Schedule TO regarding the tender offer described on this website. The stockho

April 24, 2014 EX-99.(A)(5)(DD)

Dassault Systèmes Reports New Licenses Revenue Growth of 8% in Constant Currencies

Exhibit (a)(5)(DD) On April 24, 2014, Dassault Systèmes issued the following press release announcing results for the first quarter.

April 24, 2014 SC TO-T/A

- AMENDMENT NO. 12

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statement under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 (Amendment No. 12) ACCELRYS, INC. (Name of Subject Company (Issuer)) 3DS ACQUISITION CORP. (Offeror) A Wholly Owned Direct Subsidiary of DASSAULT SYSTEMES AMERICAS CORP. (Offeror) A Wholly Owned Indirect Subsidiary of D

April 24, 2014 EX-99.(A)(5)(EE)

* Important Information This presentation is neither an offer to purchase nor a solicitation of an offer to sell shares of Accelrys' common stock. On February 13, 2014, Dassault Systèmes filed with the SEC a tender offer statement on Schedule TO rega

Exhibit (a)(5)(EE) On April 24, 2014, Dassault Systèmes issued the following presentation slides in connection with its announcement of results for the first quarter.

April 24, 2014 EX-99.(A)(5)(GG)

Dassault Systèmes First Quarter 2014

Exhibit (a)(5)(GG) On April 24, 2014, Dassault Systèmes conducted an analyst presentation in connection with its announcement of results for the first quarter.

April 24, 2014 EX-99.(A)(5)(FF)

Dassault Systèmes Conference Call 24 April 2014

Exhibit (a)(5)(FF) On April 24, 2014, Dassault Systèmes conducted a conference call in connection with its announcement of results for the first quarter.

April 24, 2014 EX-99.(A)(5)(HH)

On April 24, 2014, Dassault Syst

Exhibit (a)(5)(HH) On April 24, 2014, Dassault Systèmes published the information filed herewith on its website at http://www.

April 23, 2014 EX-99.(A)(5)(AA)

Dassault Systèmes has updated its website at http://www.3ds.com/accelrys-tender-offer/. The updated website includes the information filed herewith.

EX-99.(A)(5)(AA) 3 ex99-a5aa.htm UPDATED WEBSITE MATERIAL Exhibit (a)(5)(AA) Dassault Systèmes has updated its website at http://www.3ds.com/accelrys-tender-offer/. The updated website includes the information filed herewith. Global - English About 3DS Investors Events Press Releases Customer Stories Academia Jobs PASSION FOR INNOVATION Sign In INDUSTRIES PRODUCTS & SERVICES HOW TO BUY SUPPORT & T

April 23, 2014 SC TO-T/A

- TENDER OFFER

SC TO-T/A 1 sctota.htm TENDER OFFER UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statement under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 (Amendment No. 11) ACCELRYS, INC. (Name of Subject Company (Issuer)) 3DS ACQUISITION CORP. (Offeror) A Wholly Owned Direct Subsidiary of DASSAULT SYSTEMES AMERICAS CORP. (Offeror) A W

April 23, 2014 EX-99.(A)(5)(Z)

Dassault Systèmes Extends Tender Offer for Accelrys until April 28, 2014

EX-99.(A)(5)(Z) 2 ex99-a5z.htm PRESS RELEASE Exhibit (a)(5)(Z) Dassault Systèmes Extends Tender Offer for Accelrys until April 28, 2014 VÉLIZY-VILLACOUBLAY, France — April 23, 2014 — Dassault Systèmes (Euronext Paris: #13065, DSY.PA), the 3DEXPERIENCE Company, world leader in 3D design software, 3D Digital Mock Up and Product Lifecycle Management (PLM) solutions announces the extension of the tend

April 9, 2014 EX-99.(A)(5)(Y)

Dassault Systèmes has updated its website at http://www.3ds.com/accelrys-tender-offer/. The updated website includes the information filed herewith.

Exhibit (a)(5)(Y) Dassault Systèmes has updated its website at http://www.3ds.com/accelrys-tender-offer/. The updated website includes the information filed herewith. Global – English About 3DS Investors Events Press Releases Customer Stories Academia Jobs Passion for Innovation Sign In Industries Products & Services How to buy Support & Training Partners Accelrys tender offer Dassault Systèmes an

April 9, 2014 EX-99.(A)(5)(X)

Dassault Systèmes Extends Tender Offer for Accelrys until April 22, 2014

EX-99.(A)(5)(X) 2 ex99-a5x.htm PRESS RELEASE Exhibit (a)(5)(X) Dassault Systèmes Extends Tender Offer for Accelrys until April 22, 2014 VÉLIZY-VILLACOUBLAY, France — April 9, 2014 — Dassault Systèmes (Euronext Paris: #13065, DSY.PA), the 3DEXPERIENCE Company, world leader in 3D design software, 3D Digital Mock Up and Product Lifecycle Management (PLM) solutions announces the extension of the tende

April 9, 2014 SC TO-T/A

- AMENDMENT NO. 10

SC TO-T/A 1 sctota.htm AMENDMENT NO. 10 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statement under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 (Amendment No. 10) ACCELRYS, INC. (Name of Subject Company (Issuer)) 3DS ACQUISITION CORP. (Offeror) A Wholly Owned Direct Subsidiary of DASSAULT SYSTEMES AMERICAS CORP. (Offeror)

March 26, 2014 EX-99.(A)(5)(W)

Dassault Systèmes has updated its website at http://www.3ds.com/accelrys-tender-offer/. The updated website includes the information filed herewith.

Exhibit (a)(5)(W) Dassault Systèmes has updated its website at http://www.3ds.com/accelrys-tender-offer/. The updated website includes the information filed herewith. Global – English About 3DS Investors Events Press Releases Academia Jobs PASSION FOR INNOVATION Sign In INDUSTRIES PRODUCTS & SERVICES HOW TO BUY SUPPORT & TRAINING PARTNERS Dassault Systèmes and Accelrys to Join Forces ACCELRYS TEND

March 26, 2014 EX-99.(A)(5)(V)

Dassault Systèmes Extends Tender Offer for Accelrys until April 8, 2014

Exhibit (a)(5)(V) Dassault Systèmes Extends Tender Offer for Accelrys until April 8, 2014 VÉLIZY-VILLACOUBLAY, France — March 26, 2014 — Dassault Systèmes (Euronext Paris: #13065, DSY.

March 26, 2014 SC TO-T/A

- AMENDMENT NO. 9

SC TO-T/A 1 sctota.htm AMENDMENT NO. 9 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statement under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 (Amendment No. 9) ACCELRYS, INC. (Name of Subject Company (Issuer)) 3DS ACQUISITION CORP. (Offeror) A Wholly Owned Direct Subsidiary of DASSAULT SYSTEMES AMERICAS CORP. (Offeror) A

March 14, 2014 SC TO-T/A

- AMENDMENT NO. 8

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statement under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 (Amendment No. 8) ACCELRYS, INC. (Name of Subject Company (Issuer)) 3DS ACQUISITION CORP. (Offeror) A Wholly Owned Direct Subsidiary of DASSAULT SYSTEMES AMERICAS CORP. (Offeror) A Wholly Owned Indirect Subsidiary of DA

March 14, 2014 EX-99.(A)(5)(T)

Dassault Systèmes Extends Tender Offer for Accelrys

Exhibit (a)(5)(T) Dassault Systèmes Extends Tender Offer for Accelrys VÉLIZY-VILLACOUBLAY, France — March 14, 2014 — Dassault Systèmes (Euronext Paris: #13065, DSY.

March 14, 2014 EX-99.(A)(5)(U)

Dassault Systèmes has updated its website at

Exhibit (a)(5)(U) Dassault Systèmes has updated its website at http://www.3ds.com/accelrys-tender-offer/. The updated website includes the information filed herewith. DASSAULT SYSTÈMES INDUSTRIES PRODUCT & SERVICES HOW TO BUY SUPPORT & TRAINING PARTNERS ACCELRYS TENDER OFFER Dassault Systèmes and Accelrys to Join Forces Important information On February 13, 2014, Dassault Systèmes filed with the S

March 7, 2014 SC TO-T/A

- AMENDMENT NO. 7

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statement under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 (Amendment No. 7) ACCELRYS, INC. (Name of Subject Company (Issuer)) 3DS ACQUISITION CORP. (Offeror) A Wholly Owned Direct Subsidiary of DASSAULT SYSTEMES AMERICAS CORP. (Offeror) A Wholly Owned Indirect Subsidiary of DA

March 6, 2014 SC TO-T/A

- AMENDMENT NO. 6

SC TO-T/A 1 sctota.htm AMENDMENT NO. 6 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statement under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 (Amendment No. 6) ACCELRYS, INC. (Name of Subject Company (Issuer)) 3DS ACQUISITION CORP. (Offeror) A Wholly Owned Direct Subsidiary of DASSAULT SYSTEMES AMERICAS CORP. (Offeror) A

February 25, 2014 SC TO-T/A

- AMENDMENT NO. 5

SC TO-T/A 1 sctota.htm AMENDMENT NO. 5 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statement under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 (Amendment No. 5) ACCELRYS, INC. (Name of Subject Company (Issuer)) 3DS ACQUISITION CORP. (Offeror) A Wholly Owned Direct Subsidiary of DASSAULT SYSTEMES AMERICAS CORP. (Offeror) A

February 24, 2014 SC TO-T/A

- AMENDMENT NO. 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statement under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 (Amendment No. 4) ACCELRYS, INC. (Name of Subject Company (Issuer)) 3DS ACQUISITION CORP. (Offeror) A Wholly Owned Direct Subsidiary of DASSAULT SYSTEMES AMERICAS CORP. (Offeror) A Wholly Owned Indirect Subsidiary of DA

February 21, 2014 SC TO-T/A

- AMENDMENT NO. 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statement under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 (Amendment No. 3) ACCELRYS, INC. (Name of Subject Company (Issuer)) 3DS ACQUISITION CORP. (Offeror) A Wholly Owned Direct Subsidiary of DASSAULT SYSTEMES AMERICAS CORP. (Offeror) A Wholly Owned Indirect Subsidiary of DA

February 19, 2014 SC TO-T/A

- AMENDMENT NO. 2

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statement under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 (Amendment No. 2) ACCELRYS, INC. (Name of Subject Company (Issuer)) 3DS ACQUISITION CORP. (Offeror) A Wholly Owned Direct Subsidiary of DASSAULT SYSTEMES AMERICAS CORP. (Offeror) A Wholly Owned Indirect Subsidiary of DA

February 14, 2014 EX-99.(A)(5)(O)

Dassault Systèmes’ Tender Offer for Accelrys

EX-99.(A)(5)(O) 2 ex99-a5o.htm PRESS RELEASE Exhibit (a)(5)(O) On February 14, 2014, Dassault Systèmes issued the following press release announcing the commencement of the tender offer on February 13, 2014. Dassault Systèmes’ Tender Offer for Accelrys Commences VÉLIZY-VILLACOUBLAY, France — February 14, 2014 — Dassault Systèmes (Euronext Paris: #13065, DSY.PA), the 3DEXPERIENCE Company, world lea

February 14, 2014 EX-99.(A)(5)(Q)

On February 14, 2014, Dassault Syst

Exhibit (a)(5)(Q) On February 14, 2014, Dassault Systèmes SA published the information filed herewith on its website at www.

February 14, 2014 SC TO-T/A

- AMENDMENT NO. 1

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statement under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 (Amendment No. 1) ACCELRYS, INC. (Name of Subject Company (Issuer)) 3DS ACQUISITION CORP. (Offeror) A Wholly Owned Direct Subsidiary of DASSAULT SYSTEMES AMERICAS CORP. (Offeror) A Wholly Owned Indirect Subsidiary of DA

February 14, 2014 EX-99.(A)(5)(P)

SUMMARY TERM SHEET

Exhibit (a)(5)(P) On February 14, 2014, Dassault Systèmes published the following Summary of Terms relating to the tender offer.

February 14, 2014 EX-99.(A)(5)(R)

Global - English About 3DS Investors Events Press Releases Academia Jobs Passion for Innovation Sign In Dassault Systèmes Industries Products & Services How to buy Support & Training Partners About 3DS Accelrys Important Information On February 13, 2

EX-99.(A)(5)(R) 5 ex99-a5r.htm UPDATED WEBSITE MATERIAL Exhibit (a)(5)(R) Dassault Systèmes has updated its website at www.3ds.com/about-3ds/announcement/accelrys/. The updated website includes the information filed herewith. Global - English About 3DS Investors Events Press Releases Academia Jobs Passion for Innovation Sign In Dassault Systèmes Industries Products & Services How to buy Support &

February 14, 2014 EX-99.(A)(5)(S)

Dassault Syst

EX-99.(A)(5)(S) 6 ex99-a5s.htm UPDATED WEBSITE MATERIAL Exhibit (a)(5)(S) Dassault Systèmes has updated its website at www.3ds.com/investors/acquisition-announcement/. The updated website includes the information filed herewith. Global - English About 3DS Investors Events Press Releases Academia Jobs PASSION FOR INNOVATION Sign In Industries Products & Services How to buy Support & Training Partne

February 13, 2014 EX-99.(D)(2)

CONFIDENTIALITY AGREEMENT

EX-99.(D)(2) 8 a2218264zex-99d2.htm EX-99.(D)(2) Exhibit (d)(2) CONFIDENTIALITY AGREEMENT THIS CONFIDENTIALITY AGREEMENT (the “Agreement”) is made and entered into as of January 6, 2014 by and between Accelrys, Inc., a Delaware corporation (the “Company”), and Dassault Systèmes SA, a company incorporated under the laws of the French Republic, with its registered office at 10 rue Marcel Dassault, C

February 13, 2014 EX-99.(A)(1)(E)

Offer To Purchase For Cash All Outstanding Shares of Common Stock of ACCELRYS, INC. at $12.50 NET PER SHARE Pursuant to the Offer to Purchase dated February 13, 2014 by 3DS ACQUISITION CORP. a wholly owned direct subsidiary of DASSAULT SYSTEMES AMERI

Exhibit (a)(1)(E) Offer To Purchase For Cash All Outstanding Shares of Common Stock of ACCELRYS, INC.

February 13, 2014 EX-99.(A)(5)(N)

This announcement is neither an offer to purchase nor a solicitation of an offer to sell Shares (as defined below). The Offer (as defined below) is made only by the Offer to Purchase, dated February 13, 2014, and the related Letter of Transmittal and

Exhibit (a)(5)(N) This announcement is neither an offer to purchase nor a solicitation of an offer to sell Shares (as defined below).

February 13, 2014 EX-99.(A)(1)(A)

Offer To Purchase For Cash All Outstanding Shares of Common Stock of ACCELRYS, INC. at $12.50 NET PER SHARE by 3DS ACQUISITION CORP. a wholly owned direct subsidiary of DASSAULT SYSTEMES AMERICAS CORP. a wholly owned indirect subsidiary of DASSAULT S

EX-99.(A)(1)(A) 2 a2218264zex-99a1a.htm EX-99.(A)(1)(A) Use these links to rapidly review the document TABLE OF CONTENTS Exhibit (a)(1)(A) Offer To Purchase For Cash All Outstanding Shares of Common Stock of ACCELRYS, INC. at $12.50 NET PER SHARE by 3DS ACQUISITION CORP. a wholly owned direct subsidiary of DASSAULT SYSTEMES AMERICAS CORP. a wholly owned indirect subsidiary of DASSAULT SYSTÈMES SA

February 13, 2014 EX-99.(A)(1)(B)

LETTER OF TRANSMITTAL To Tender Shares of Common Stock of ACCELRYS, INC. at $12.50 NET PER SHARE Pursuant to the Offer to Purchase dated February 13, 2014 by 3DS ACQUISITION CORP., a wholly owned direct subsidiary of DASSAULT SYSTEMES AMERICAS CORP.,

EX-99.(A)(1)(B) 3 a2218264zex-99a1b.htm EX-99.(A)(1)(B) Exhibit (a)(1)(B) LETTER OF TRANSMITTAL To Tender Shares of Common Stock of ACCELRYS, INC. at $12.50 NET PER SHARE Pursuant to the Offer to Purchase dated February 13, 2014 by 3DS ACQUISITION CORP., a wholly owned direct subsidiary of DASSAULT SYSTEMES AMERICAS CORP., aa wholly owned indirect subsidiary of DASSAULT SYSTÈMES SA THE OFFER AND W

February 13, 2014 EX-99.(A)(1)(D)

Offer To Purchase For Cash All Outstanding Shares of Common Stock of ACCELRYS, INC. at $12.50 NET PER SHARE Pursuant to the Offer to Purchase dated February 13, 2014 by 3DS ACQUISITION CORP. a wholly owned direct subsidiary of DASSAULT SYSTEMES AMERI

EX-99.(A)(1)(D) 5 a2218264zex-99a1d.htm EX-99.(A)(1)(D) Exhibit (a)(1)(D) Offer To Purchase For Cash All Outstanding Shares of Common Stock of ACCELRYS, INC. at $12.50 NET PER SHARE Pursuant to the Offer to Purchase dated February 13, 2014 by 3DS ACQUISITION CORP. a wholly owned direct subsidiary of DASSAULT SYSTEMES AMERICAS CORP. a wholly owned indirect subsidiary of DASSAULT SYSTÈMES SA THE OFF

February 13, 2014 EX-99.(A)(1)(C)

NOTICE OF GUARANTEED DELIVERY For Tender of Shares of Common Stock of ACCELRYS, INC. at $12.50 NET PER SHARE Pursuant to the Offer to Purchase dated February 13, 2014 by 3DS ACQUISITION CORP. a wholly owned direct subsidiary of DASSAULT SYSTEMES AMER

QuickLinks - Click here to rapidly navigate through this document Exhibit (a)(1)(C) NOTICE OF GUARANTEED DELIVERY For Tender of Shares of Common Stock of ACCELRYS, INC.

February 13, 2014 SC TO-T

- SC TO-T

QuickLinks - Click here to rapidly navigate through this document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

February 6, 2014 EX-99.5

Dassault Systèmes Conference Call 6 February 2014

Exhibit 99.5 On February 6, 2014, Dassault Systèmes conducted a conference call in connection with its announcement of results for the fourth quarter and year ended December 31, 2013. A transcript of the call is filed herewith. Dassault Systèmes Conference Call 6 February 2014 Contents INTRODUCTION François-José BORDONADO Vice-President, Investor Relations 2 Business Overview Bernard CHARLES Presi

February 6, 2014 EX-99.4

Dassault Systèmes Analysts Meeting Q4 & FY 2013

Exhibit 99.4 On February 6, 2014, Dassault Systèmes conducted an analyst presentation in connection with its announcement of results for the fourth quarter and year ended December 31, 2013. A transcript of the presentation is filed herewith. Dassault Systèmes Analysts Meeting Q4 & FY 2013 Contents Introduction 2 François-José BORDONADO 2 VP Investor Relations 2 Business Overview 3 Bernard CHARLES

February 6, 2014 SC TO-C

- TENDER OFFER STATEMENT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statement under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 ACCELRYS, INC. (Name of Subject Company (Issuer)) 3DS ACQUISITION CORP. (Offeror) A Wholly Owned Direct Subsidiary of DASSAULT SYSTEMES AMERICAS CORP. (Offeror) A Wholly Owned Indirect Subsidiary of DASSAULT SYSTÈMES SA

February 6, 2014 EX-99.3

DASSAULT SYSTEMES 2013 Fourth Quarter Conference Call Thursday, February 6, 2014

Exhibit 99.3 On February 6, 2014, Dassault Systèmes issued the text of the following prepared remarks made in connection with its announcement of results for the fourth quarter and year ended December 31, 2013. DASSAULT SYSTEMES 2013 Fourth Quarter Conference Call Thursday, February 6, 2014 Final François-José Bordonado Vice President, Investor Relations Thank you for joining Bernard Charles, CEO,

February 6, 2014 EX-99.1

Dassault Systèmes Reports Q4 and FY Results, Addressable Market Expansion and Introduction of Broad Cloud Offering

Exhibit 99.1 On February 6, 2014, Dassault Systèmes issued the following press release announcing results for the fourth quarter and year ended December 31, 2013. Dassault Systèmes Reports Q4 and FY Results, Addressable Market Expansion and Introduction of Broad Cloud Offering Paris, France – February 6, 2014 — Dassault Systèmes (Euronext Paris: #13065, DSY.PA), the 3DEXPERIENCE Company, world lea

February 6, 2014 EX-99.2

On February 6, 2014, Dassault Syst

Exhibit 99.2 On February 6, 2014, Dassault Systèmes issued the following presentation slides in connection with its announcement of results for the fourth quarter and year ended December 31, 2013. 3D Experience Analysts Meeting Q4 & FY 2013 Bernard Charlès, President and CEO Thibault de Tersant, Senior EVP, CFO Important Information The tender offer described in this presentation has not yet comme

February 4, 2014 EX-99.1

Dassault Systèmes has updated its website at www.3ds.com/investors/acquisition-announcement/. The updated website includes the information filed herewith.

EX-99.1 2 ex99-1.htm UPDATED WEBSITE MATERIAL PUBLISHED BY DASSAULT SYSTEMES Exhibit 99.1 Dassault Systèmes has updated its website at www.3ds.com/investors/acquisition-announcement/. The updated website includes the information filed herewith. Dassault Systèmes Industries Products & Services How To Buy Support & Training Partners Investors Acquisition Announcement Important Information The tender

February 4, 2014 SC TO-C

- TENDER OFFER STATEMENT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statement under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 ACCELRYS, INC. (Name of Subject Company (Issuer)) 3DS ACQUISITION CORP. (Offeror) A Wholly Owned Direct Subsidiary of DASSAULT SYSTEMES AMERICAS CORP. (Offeror) A Wholly Owned Indirect Subsidiary of DASSAULT SYSTÈMES SA

January 31, 2014 EX-99.4

On January 31, 2014, Dassault Syst

EX-99.4 5 ex99-4.htm UPDATED WEBSITE MATERIAL PUBLISHED BY DASSAULT SYSTEMES Exhibit 99.4 On January 31, 2014, Dassault Systèmes updated its website at www.3ds.com/about-3ds/announcement/accelrys. The updated website includes the information filed herewith. We use cookies to operate this website and to improve its usability. Please note that by using this site you are consenting to the use of cook

January 31, 2014 EX-99.5

On January 30, 2014, Dassault Systèmes published the information filed herewith on its website at www.3ds.com/investors/acquisition-announcement/.

EX-99.5 6 ex99-5.htm WEBSITE MATERIAL PUBLISHED BY DASSAULT SYSTEMES Exhibit 99.5 On January 30, 2014, Dassault Systèmes published the information filed herewith on its website at www.3ds.com/investors/acquisition-announcement/. Global – English About 3DS Investors Events Press Releases Academia Jobs Passion for Innovation Dassault Systèmes Industries Products & Services How to Buy Support & Train

January 31, 2014 SC TO-C

- TENDER OFFER

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statement under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 ACCELRYS, INC. (Name of Subject Company (Issuer)) 3DS ACQUISITION CORP. (Offeror) A Wholly Owned Direct Subsidiary of DASSAULT SYSTÈMES AMERICAS CORP. (Offeror) A Wholly Owned Indirect Subsidiary of DASSAULT SYSTÈMES SA

January 31, 2014 EX-99.3

Dassault Systèmes SA and Accelrys to Join Forces Conference Call January 30, 2014 7:00 AM Pacific time / 10:00 AM New York time / 3:00 PM London time /4:00 PM Paris time

Exhibit 99.3 Dassault Systèmes SA and Accelrys to Join Forces Conference Call January 30, 2014 7:00 AM Pacific time / 10:00 AM New York time / 3:00 PM London time /4:00 PM Paris time Operator: Thank you for standing by and welcome to the Dassault Systèmes and Accelrys 30th of January, 2014 conference call. At this time, all participants are in a listen-only mode. A short overview will be given, fo

January 31, 2014 EX-99.1

Important Information

Exhibit 99.1 Important Information The tender offer described in this presentation has not yet commenced, and this material is neither an offer to purchase nor a solicitation of an offer to sell shares of Accelrys’ common stock. At the time the tender offer is commenced, Dassault Systèmes will file a tender offer statement with the United States Securities and Exchange Commission (the “SEC”). Acce

January 31, 2014 EX-99.2

DASSAULT SYSTEMES

EX-99.2 3 ex99-2.htm CONFERENCE CALL SCRIPT Exhibit 99.2 DASSAULT SYSTEMES Accelrys Definitive Purchase Agreement Joint Conference Call January 30, 2014 Final François-José Bordonado Vice President, Investor Relations Thank you for participating in this conference call regarding the proposed acquisition of Accelrys, a publicly-traded company, headquartered in San Diego, California. Joining us on t

January 30, 2014 SC TO-C

- SCHEDULE TO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statement under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 ACCELRYS, INC. (Name of Subject Company (Issuer)) 3DS ACQUISITION CORP. (Offeror) A Wholly Owned Direct Subsidiary of DASSAULT SYSTÈMES AMERICAS CORP. (Offeror) A Wholly Owned Indirect Subsidiary of DASSAULT SYSTÈMES SA

January 30, 2014 EX-99.2

\

Exhibit 99.2 We use cookies to operate this website and to improve its usability. Please note that by using this site you are consenting to the use of cookies. For more information, please read our Privacy Policy / Cookies page. Don't show me this message again Global - English About 3DS Investors Events Press Releases Academia Jobs Passion for Innovation Sign In Assault Systems Industries Produc

January 30, 2014 EX-99.1

Dassault Systèmes and Accelrys to Join Forces Delivering Scientific Innovation in the Age of Experience

Exhibit 99.1 Dassault Systèmes and Accelrys to Join Forces Delivering Scientific Innovation in the Age of Experience VÉLIZY-VILLACOUBLAY, France, and SAN DIEGO, CA. — January 30th, 2014 — Dassault Systèmes(Euronext Paris: #13065, DSY.PA), the 3DEXPERIENCE Company, world leader in 3D design software, 3D Digital Mock Up and Product Lifecycle Management (PLM) solutions and Accelrys, Inc., (NASDAQ: AC

October 16, 2008 S-8 POS

As filed with the Securities and Exchange Commission on October 16, 2008 Registration No. 333-100030 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT UNDER THE S

As filed with the Securities and Exchange Commission on October 16, 2008 Registration No.

October 16, 2008 S-8 POS

As filed with the Securities and Exchange Commission on October 16, 2008

As filed with the Securities and Exchange Commission on October 16, 2008 Registration No.

October 16, 2008 F-6 POS

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 2 TO FORM F-6 REGISTRATION STATEMENT THE SECURITIES ACT OF 1933 For American Depositary Shares Evidenced by American Depositary Receipts DASSAULT SYSTÈMES S.A. (Ex

Registration No.333-5086 SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 2 TO FORM F-6 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 For American Depositary Shares Evidenced by American Depositary Receipts DASSAULT SYST?MES S.A. (Exact name of issuer of deposited securities as specified in its charter) N/A (Translation of issuer's name into English)

October 16, 2008 S-8 POS

As filed with the Securities and Exchange Commission on October 16, 2008 Registration No. 333-13938 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT UNDER THE SE

As filed with the Securities and Exchange Commission on October 16, 2008 Registration No.

October 16, 2008 EX-99.A3

AMENDMENT NO. 2 TO DEPOSIT AGREEMENT

AMENDMENT NO. 2 TO DEPOSIT AGREEMENT AMENDMENT NO. 2 dated as of October , 2008 (the "Amendment") to the Amended and Restated Deposit Agreement dated as of December 31, 1998, as amended as of April 21, 2008 (as so amended and restated and amended, the "Deposit Agreement"), among Dassault Syst?mes S.A. and its successors (the "Company"), incorporated under the laws of The Republic of France, JPMorg

October 16, 2008 EX-99.E

Certification under Rule 466

Certification under Rule 466 The depositary, JPMorgan Chase Bank, N.A. represents and certifies the following: (1) That it previously had filed a registration statement on Form F-6 (Dassault Syst?mes S.A., 333-5086) that the Commission declared effective, with terms of deposit identical to the terms of deposit of this registration statement. (2) That its ability to designate the date and time of e

October 16, 2008 S-8 POS

As filed with the Securities and Exchange Commission on October 16, 2008

S-8 POS 1 ss46192s8pos.htm As filed with the Securities and Exchange Commission on October 16, 2008 Registration No. 333-8420 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 DASSAULT SYSTÈMES (Exact name of Registrant as specified in its charter) France (State or other jurisdi

October 16, 2008 15F-12G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15F CERTIFICATION OF A FOREIGN PRIVATE ISSUER’S TERMINATION OF REGISTRATION OF A CLASS OF SECURITIES UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ITS TERMIN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15F CERTIFICATION OF A FOREIGN PRIVATE ISSUER’S TERMINATION OF REGISTRATION OF A CLASS OF SECURITIES UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ITS TERMINATION OF THE DUTY TO FILE REPORTS UNDER SECTION 13(a) OR SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number 0-28578 DASSAULT

October 10, 2008 6-K

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 October 10, 2008 Commission File No. 0-28578 DASSAUL

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 October 10, 2008 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

October 7, 2008 6-K

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 October 7, 2008 Commission File No. 0-28578 DASSAULT

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 October 7, 2008 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

October 6, 2008 25

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 25 NOTIFICATION OF REMOVAL FROM LISTING AND/OR REGISTRATION UNDER SECTION 12(b) OF THE SECURITIES EXCHANGE ACT OF 1934.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 25 NOTIFICATION OF REMOVAL FROM LISTING AND/OR REGISTRATION UNDER SECTION 12(b) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number: 0-28578 DASSAULT SYSTEMES (Nasdaq) (Exact name of Issuer as specified in its charter, and name of Exchange where security is listed and/or registered) 9, Quai Marcel Dassault, B.P

October 6, 2008 6-K

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 October 6, 2008 Commission File No. 0-28578 DASSAULT

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 October 6, 2008 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

September 26, 2008 6-K

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 26, 2008 Commission File No. 0-28578 DASSA

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 26, 2008 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) Indica

September 10, 2008 6-K

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 10, 2008 Commission File No. 0-28578 DASSA

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 10, 2008 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) Indica

August 11, 2008 6-K

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 August 11, 2008 Commission File No. 0-28578 DASSAULT

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 August 11, 2008 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

August 5, 2008 6-K

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 August 5, 2008 Commission File No. 0-28578 DASSAULT

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 August 5, 2008 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 b

July 31, 2008 6-K

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 July 31, 2008 Commission File No. 0-28578 DASSAULT S

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 July 31, 2008 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

July 17, 2008 6-K

SECURITIES AND EXCHANGE COMMISSION

6-K 1 ss422606k.htm REPORT OF FOREIGN PRIVATE ISSUER 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 July 17, 2008 Commission File No. 0-28578 DASSAULT SYSTEMES S.A. (Name of Registrant) 9, Quai Marcel Dassault, B.P. 310, 92156 Suresnes Cedex, France

July 7, 2008 6-K

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 July 7, 2008 Commission File No. 0-28578 DASSAULT SY

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 July 7, 2008 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

July 3, 2008 6-K

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 July 3, 2008 Commission File No. 0-28578 DASSAULT SY

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 July 3, 2008 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

July 2, 2008 6-K

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 July 2, 2008 Commission File No. 0-28578 DASSAULT SY

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 July 2, 2008 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

June 17, 2008 6-K

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 June 17, 2008 Commission File No. 0-28578 DASSAULT S

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 June 17, 2008 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

June 10, 2008 6-K

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 June 10, 2008 Commission File No. 0-28578 DASSAULT S

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 June 10, 2008 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

May 29, 2008 6-K

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 May 29, 2008 Commission File No. 0-28578 DASSAULT SY

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 May 29, 2008 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

May 27, 2008 6-K

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 May 27, 2008 Commission File No. 0-28578 DASSAULT SY

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 May 27, 2008 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

May 20, 2008 6-K

SECURITIES AND EXCHANGE COMMISSION

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 May 20, 2008 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

May 16, 2008 6-K

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 May 16, 2008 Commission File No. 0-28578 DASSAULT SY

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 May 16, 2008 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

May 2, 2008 6-K

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 May 2, 2008 Commission File No. 0-28578 DASSAULT SYS

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 May 2, 2008 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 c

April 29, 2008 6-K

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 April 29, 2008 Commission File No. 0-28578 DASSAULT

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 April 29, 2008 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 b

April 21, 2008 EX-99.(E)

Certification under Rule 466

EX-99.(E) 3 v111180ex99e.htm Certification under Rule 466 The depositary, JPMorgan Chase Bank, N.A. represents and certifies the following: (1) That it previously had filed a registration statement on Form F-6 (Dassault Systèmes S.A., 333-5086) that the Commission declared effective, with terms of deposit identical to the terms of deposit of this registration statement. (2) That its ability to des

April 21, 2008 EX-99.(A)(2)

AMENDMENT NO. 1 TO DEPOSIT AGREEMENT

AMENDMENT NO. 1 TO DEPOSIT AGREEMENT AMENDMENT NO. 1 dated as of April , 2007 (the "Amendment") to the Amended and Restated Deposit Agreement dated as of December 31, 1998 to Deposit Agreement dated as of June 27, 1996 (as so amended and restated, the "Deposit Agreement"), among Dassault Syst?mes S.A. and its successors (the "Company"), incorporated under the laws of The Republic of France, JPMorg

April 21, 2008 F-6 POS

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 2 TO FORM F-6 REGISTRATION STATEMENT THE SECURITIES ACT OF 1933 For American Depositary Shares Evidenced by American Depositary Receipts DASSAULT SYSTÈMES S.A. (Ex

F-6 POS 1 v111180f6pos.htm Registration No.333-5086 SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 2 TO FORM F-6 REGISTRATION STATEMENT Under THE SECURITIES ACT OF 1933 For American Depositary Shares Evidenced by American Depositary Receipts DASSAULT SYSTÈMES S.A. (Exact name of issuer of deposited securities as specified in its charter) N/A (Translation of

April 9, 2008 6-K

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 April 9, 2008 Commission File No. 0-28578 DASSAULT S

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 April 9, 2008 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

April 7, 2008 6-K

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 April 7, 2008 Commission File No. 0-28578 DASSAULT S

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 April 7, 2008 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

April 4, 2008 EX-15.(A)1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Exhibit 15(a).1 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (No. 333-100030, 333-13938, 333-8420, 333-5174) of Dassault Syst?mes SA of our report dated March 31, 2008 relating to the consolidated financial statements and the effectiveness of internal control over financial reporting which ap

April 4, 2008 EX-4.(A)4

Amendment 161 to the Amended and Restated License Agreement for the Use and Marketing of Programming Materials dated May 31, 1996 as amended (the ?1996 Agreement?) International Business Machines Corporation Dassault Systemes

Exhibit 4(a).4 Any text removed pursuant to the Company?s confidential treatment has been separately submitted with the U.S. Securities and Exchange Commission and is marked [***] herein. Amendment 161 to the Amended and Restated License Agreement for the Use and Marketing of Programming Materials dated May 31, 1996 as amended (the ?1996 Agreement?) between International Business Machines Corporat

April 4, 2008 EX-4.(A)2

Amendment 159 to the Amended and Restated License Agreement for the Use and Marketing of Programming Materials dated May 31, 1996, as amended (the “1996 Agreement”) International Business Machines Corporation (IBM) Dassault Systemes, S.A. (DS)

EX-4.(A)2 2 a2184159zex-4a2.htm EX-4.(A)2 Exhibit 4(a).2 Any text removed pursuant to the Company’s confidential treatment has been separately submitted with the U.S. Securities and Exchange Commission and is marked [***] herein. Amendment 159 to the Amended and Restated License Agreement for the Use and Marketing of Programming Materials dated May 31, 1996, as amended (the “1996 Agreement”) betwe

April 4, 2008 EX-4.(A)5

Amendment 162 to the Amended and Restated License Agreement for the Use and Marketing of Programming Materials dated May 31, 1996 (the ?1996 Agreement?) International Business Machines Corporation (IBM) Dassault Systemes, S.A. (OWNER)

EX-4.(A)5 5 a2184159zex-4a5.htm EX-4.(A)5 Exhibit 4(a).5 Any text removed pursuant to the Company’s confidential treatment has been separately submitted with the U.S. Securities and Exchange Commission and is marked [***] herein. Amendment 162 to the Amended and Restated License Agreement for the Use and Marketing of Programming Materials dated May 31, 1996 (the “1996 Agreement”) between Internati

April 4, 2008 EX-13.1

Certification of Chief Executive Officer Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 13.1 Certification of Chief Executive Officer Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 I, Bernard Charl?s, President and Chief Executive Officer of Dassault Syst?mes, a soci?t? anonyme organized under French law (?DASSAULT SYSTEMES?), certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarban

April 4, 2008 EX-4.(A)3

Amendment 160 to the Amended and Restated License Agreement for the Use and Marketing of Programming Materials dated May 31, 1996 (the “1996 Agreement”) International Business Machines Corporation (IBM) Dassault Systemes, S.A. (OWNER)

EX-4.(A)3 3 a2184159zex-4a3.htm EX-4.(A)3 Exhibit 4(a).3 Any text removed pursuant to the Company’s confidential treatment has been separately submitted with the U.S. Securities and Exchange Commission and is marked [***] herein. Amendment 160 to the Amended and Restated License Agreement for the Use and Marketing of Programming Materials dated May 31, 1996 (the “1996 Agreement”) between Internati

April 4, 2008 EX-12.1

CERTIFICATION

Exhibit 12.1 CERTIFICATION I, Bernard Charl?s, certify that: 1. I have reviewed this annual report of Dassault Syst?mes S.A. (the ?Company?) on Form 20-F for the period ending December 31, 2007, as filed with the Securities and Exchange Commission on the date hereof (the ?Report?); 2. Based on my knowledge, this Report does not contain any untrue statement of a material fact or omit to state a mat

April 4, 2008 EX-12.2

CERTIFICATION

Exhibit 12.2 CERTIFICATION I, Thibault de Tersant, certify that: 1. I have reviewed this annual report of Dassault Systèmes S.A. (the “Company”) on Form 20-F for the period ending December 31, 2007, as filed with the Securities and Exchange Commission on the date hereof (the “Report”); 2. Based on my knowledge, this Report does not contain any untrue statement of a material fact or omit to state a

April 4, 2008 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 20-F

Use these links to rapidly review the document Table of contents PART I PART II PART III Item 17: Financial Statements UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

April 4, 2008 EX-4.(A)6

Amendment 163 to the Amended and Restated License Agreement for the Use and Marketing of Programming Materials dated May 31, 1996 (the ?1996 Agreement?) International Business Machines Corporation (IBM) Dassault Systemes, S.A. (OWNER)

Exhibit 4(a).6 Any text removed pursuant to the Company?s confidential treatment has been separately submitted with the U.S. Securities and Exchange Commission and is marked [***] herein. Amendment 163 to the Amended and Restated License Agreement for the Use and Marketing of Programming Materials dated May 31, 1996 (the ?1996 Agreement?) between International Business Machines Corporation (IBM) a

April 4, 2008 EX-4.(C)1

DASSAULT SYSTEMES Société anonyme with a registered capital of 117 645 813 euros Registered office : 9, Quai Marcel Dassault - 92150 SURESNES 322 306 440 R.C.S. Nanterre MEETING OF THE BOARD OF DIRECTORS HELD ON 28 MARCH 2008 Extract of the minutes

Exhibit 4(c).1 UNOFFICAL ENGLISH TRANSLATION DASSAULT SYSTEMES Soci?t? anonyme with a registered capital of 117 645 813 euros Registered office : 9, Quai Marcel Dassault - 92150 SURESNES 322 306 440 R.C.S. Nanterre MEETING OF THE BOARD OF DIRECTORS HELD ON 28 MARCH 2008 Extract of the minutes The 28th day of March 2008, at 4 pm, The directors of the company DASSAULT SYSTEMES (the ? Company ? or ?

April 3, 2008 6-K

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 April 3, 2008 Commission File No. 0-28578 DASSAULT S

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 April 3, 2008 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

March 31, 2008 6-K

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 March 31, 2008 Commission File No. 0-28578 DASSAULT

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 March 31, 2008 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 b

March 19, 2008 6-K

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 March 19, 2008 Commission File No. 0-28578 DASSAULT

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 March 19, 2008 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 b

March 11, 2008 6-K

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 March 11, 2008 Commission File No. 0-28578 DASSAULT

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 March 11, 2008 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 b

March 10, 2008 6-K

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 March 10, 2008 Commission File No. 0-28578 DASSAULT

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 March 10, 2008 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 b

February 13, 2008 6-K

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 February 13, 2008 Commission File No. 0-28578 DASSAU

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 February 13, 2008 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) Indicat

February 8, 2008 6-K

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 February 8, 2008 Commission File No. 0-28578 DASSAUL

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 February 8, 2008 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

January 29, 2008 6-K

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 January 29, 2008 Commission File No. 0-28578 DASSAUL

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 January 29, 2008 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

January 24, 2008 6-K

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 January 24, 2008 Commission File No. 0-28578 DASSAUL

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 January 24, 2008 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

January 16, 2008 6-K

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 January 16, 2008 Commission File No. 0-28578 DASSAUL

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 January 16, 2008 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

January 10, 2008 6-K

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 January 10, 2008 Commission File No. 0-28578 DASSAUL

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 January 10, 2008 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

December 21, 2007 EX-10

2006 Stock Options Plan

EXHIBIT 10 DASSAULT SYSTEMES RULES OF THE STOCK OPTIONS PLAN (2006) Adopted by the Board of Directors on October 9, 2006 Contents 1.

December 21, 2007 S-8

As filed with the Securities and Exchange Commission on December 21, 2007

Table of Contents As filed with the Securities and Exchange Commission on December 21, 2007 Registration No.

December 13, 2007 6-K

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 December 13, 2007 Commission File No. 0-28578 DASSAU

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 December 13, 2007 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) Indicat

December 6, 2007 6-K

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 December 6, 2007 Commission File No. 0-28578 DASSAUL

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 December 6, 2007 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

November 8, 2007 6-K

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 November 8, 2007 Commission File No. 0-28578 DASSAUL

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 November 8, 2007 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

November 6, 2007 6-K

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 November 6, 2007 Commission File No. 0-28578 DASSAUL

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 November 6, 2007 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

October 30, 2007 6-K

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 October 30, 2007 Commission File No. 0-28578 DASSAUL

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 October 30, 2007 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

October 19, 2007 6-K

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 October 19, 2007 Commission File No. 0-28578 DASSAUL

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 October 19, 2007 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

October 16, 2007 CORRESP

Suresnes, October 16, 2007

CORRESP 1 filename1.htm Suresnes, October 16, 2007 VIA EDGAR (Correspondence) Mr. Stephen G. Krikorian Accounting Branch Chief Division of Corporation Finance U.S. Securities and Exchange Commission 100 F Street, NE Washington, D.C. 20549 RE: Dassault Systèmes, S.A. Form 20-F for Fiscal Year Ended December 31, 2006 Filed May 29, 2007 File No. 000-28578 Responses to SEC comments Dear Mr. Krikorian:

October 9, 2007 6-K

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 October 8, 2007 Commission File No. 0-28578 DASSAULT

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 October 8, 2007 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

October 3, 2007 6-K

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 October 3, 2007 Commission File No. 0-28578 DASSAULT

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 October 3, 2007 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

October 2, 2007 6-K

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 October 2, 2007 Commission File No. 0-28578 DASSAULT

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 October 2, 2007 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

September 26, 2007 6-K

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 25, 2007 Commission File No. 0-28578 DASSA

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 25, 2007 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) Indica

September 7, 2007 6-K

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 7, 2007 Commission File No. 0-28578 DASSAU

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 7, 2007 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) Indicat

September 5, 2007 CORRESP

Suresnes, September 4th 2007

CORRESP 1 filename1.htm Suresnes, September 4th 2007 VIA EDGAR (Correspondence) Mr. Stephen G. Krikorian Accounting Branch Chief Division of Corporation Finance U.S. Securities and Exchange Commission 100 F Street, NE Washington, D.C. 20549 RE: Dassault Systèmes, S.A. Form 20-F for Fiscal Year Ended December 31, 2006 Filed May 29, 2007 File No. 000-28578 Responses to SEC comments Dear Mr. Krikoria

July 26, 2007 6-K

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 July 26, 2007 Commission File No. 0-28578 DASSAULT S

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 July 26, 2007 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

July 11, 2007 6-K

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 July 11, 2007 Commission File No. 0-28578 DASSAULT S

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 July 11, 2007 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

July 9, 2007 6-K

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 July 9, 2007 Commission File No. 0-28578 DASSAULT SY

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 July 9, 2007 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

June 28, 2007 6-K

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 June 28, 2007 Commission File No. 0-28578 DASSAULT S

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 June 28, 2007 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

June 26, 2007 6-K

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 June 26, 2007 Commission File No. 0-28578 DASSAULT S

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 June 26, 2007 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

June 21, 2007 6-K

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 June 21, 2007 Commission File No. 0-28578 DASSAULT S

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 June 21, 2007 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

June 12, 2007 6-K

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 June 12, 2007 Commission File No. 0-28578 DASSAULT S

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 June 12, 2007 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

June 6, 2007 6-K

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 June 6, 2007 Commission File No. 0-28578 DASSAULT SY

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 June 6, 2007 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

May 29, 2007 EX-4.(A)5

Amendment 157 to the Amended and Restated License Agreement for the Use and Marketing of Programming Materials dated May 31, 1996 as amended (the "1996 Agreement") between International Business Machines Corporation and Dassault Systemes

Exhibit 4(a)5 Any text removed pursuant to the Company's confidential treatment has been separately submitted with the U.

May 29, 2007 EX-15.(A).1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Exhibit 15(a).1 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (No. 333-100030, 333-13938, 333-8420, 333-5174) of Dassault Syst?mes SA of our report dated May 21, 2007 relating to the consolidated financial statements as of and for the year ended December 31, 2006, which appears in this Form 20

May 29, 2007 EX-12.1

CERTIFICATION

Exhibit 12.1 CERTIFICATION I, Bernard Charl?s, certify that: 1. I have reviewed this annual report of Dassault Syst?mes S.A. (the "Company") on Form 20-F for the period ending December 31, 2006, as filed with the Securities and Exchange Commission on the date hereof (the "Report"); 2. Based on my knowledge, this Report does not contain any untrue statement of a material fact or omit to state a mat

May 29, 2007 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 20-F

Use these links to rapidly review the document Table of contents PART I PART II PART III Item 17: Financial Statements UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

May 29, 2007 EX-4.(A)2

Amendment 154 to the Amended and Restated License Agreement for the Use and Marketing of Programming Materials dated May 31, 1996 (the "1996 Agreement") between International Business Machines Corporation and Dassault Systemes, S.A.

Exhibit 4(a)2 Any text removed pursuant to the Company's confidential treatment has been separately submitted with the U.

May 29, 2007 EX-4.(A)4

Amendment 156 to the Amended and Restated License Agreement for the Use and Marketing of Programming Materials dated May 31, 1996 (the "1996 Agreement") between International Business Machines Corporation and Dassault Systemes, S.A.

Exhibit 4(a)4 Any text removed pursuant to the Company's confidential treatment has been separately submitted with the U.

May 29, 2007 EX-15.(A).3

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Exhibit 15(a).3 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the incorporation by reference in the Registration Statement Nos. 333-100030, 333-13938, 333-8420 and 333-5174 on Form S-8 of our report dated June 24, 2005, except for the "Reclassifications" paragraph of Note 1, as to which the date is May 30, 2006, relating to the consolidated financial statements of Dassault

May 29, 2007 EX-4.(A)3

Amendment 155 to the Amended and Restated License Agreement for the Use and Marketing of Programming Materials dated May 31, 1996 (the "1996 Agreement") between International Business Machines Corporation (IBM) and Dassault Systemes, S.A. (OWNER)

Exhibit 4(a)3 Any text removed pursuant to the Company's confidential treatment has been separately submitted with the U.

May 29, 2007 EX-1.1

DASSAULT SYSTEMES Corporation with registered capital of 115,942,714 euros REGISTERED OFFICE 9, quai Marcel Dassault 92150 Suresnes BY-LAWS June 6, 2007 Nanterre Commercial Register No 322 306 440 TITLE I FORM – PURPOSE – NAME – PRINCIPAL OFFICE – DU

QuickLinks - Click here to rapidly navigate through this document Exhibit 1.1 DASSAULT SYSTEMES Corporation with registered capital of 115,942,714 euros REGISTERED OFFICE 9, quai Marcel Dassault 92150 Suresnes BY-LAWS June 6, 2007 Nanterre Commercial Register No 322 306 440 TITLE I FORM ? PURPOSE ? NAME ? PRINCIPAL OFFICE ? DURATION Article 1 Corporate Form The Company, in the form of a corporatio

May 29, 2007 EX-12.2

CERTIFICATION

Exhibit 12.2 CERTIFICATION I, Thibault de Tersant, certify that: 1. I have reviewed this annual report of Dassault Systèmes S.A. (the "Company") on Form 20-F for the period ending December 31, 2006, as filed with the Securities and Exchange Commission on the date hereof (the "Report"); 2. Based on my knowledge, this Report does not contain any untrue statement of a material fact or omit to state a

May 29, 2007 EX-4.(A)6

Amendment 158 to the Amended and Restated License Agreement for the Use and Marketing of Programming Materials dated May 31, 1996 (the "1996 Agreement") between International Business Machines Corporation (IBM) and Dassault Systemes, S.A. (OWNER)

Exhibit 4(a)6 Any text removed pursuant to the Company's confidential treatment has been separately submitted with the U.

May 29, 2007 EX-13.1

Certification of Chief Executive Officer Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 13.1 Certification of Chief Executive Officer Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 I, Bernard Charl?s, President and Chief Executive Officer of Dassault Syst?mes, a soci?t? anonyme organized under French law ("DASSAULT SYSTEMES"), certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarban

May 29, 2007 EX-15.(A).2

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

EX-15.(A).2 12 a2178012zex-15a2.htm EXHIBIT 15(A).2 Exhibit 15(a).2 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the incorporation by reference in the Registration Statement Nos. 333-100030, 333-13938, 333-8420 and 333-5174 on Form S-8 of our report dated June 24, 2005, except for the "Reclassifications" paragraph of Note 1, as to which the date is May 30, 2006, relating

May 25, 2007 6-K

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 May 25, 2007 Commission File No. 0-28578 DASSAULT SY

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 May 25, 2007 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

May 22, 2007 6-K

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 May 22, 2007 Commission File No. 0-28578 DASSAULT SY

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 May 22, 2007 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

May 21, 2007 6-K

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 May 21, 2007 Commission File No. 0-28578 DASSAULT SY

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 May 21, 2007 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

May 16, 2007 6-K

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 May 16, 2007 Commission File No. 0-28578 DASSAULT SY

6-K 1 f6k051607-dassault.htm 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 May 16, 2007 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 Ex

May 15, 2007 6-K

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 May 15, 2007 Commission File No. 0-28578 DASSAULT SY

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 May 15, 2007 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

May 10, 2007 6-K

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 May 10, 2007 Commission File No. 0-28578 DASSAULT SY

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 May 10, 2007 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

May 9, 2007 6-K

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 May 9, 2007 Commission File No. 0-28578 DASSAULT SYS

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 May 9, 2007 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 c

May 9, 2007 6-K

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 May 9, 2007 Commission File No. 0-28578 DASSAULT SYS

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 May 9, 2007 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 c

May 2, 2007 6-K

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 May 2, 2007 Commission File No. 0-28578 DASSAULT SYS

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 May 2, 2007 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 c

April 27, 2007 6-K

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 April 27, 2007 Commission File No. 0-28578 DASSAULT

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 April 27, 2007 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 b

April 27, 2007 6-K

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 April 27, 2007 Commission File No. 0-28578 DASSAULT

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 April 27, 2007 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 b

April 18, 2007 6-K

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 April 18, 2007 Commission File No. 0-28578 DASSAULT

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 April 18, 2007 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 b

April 10, 2007 6-K

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 April 10, 2007 Commission File No. 0-28578 DASSAULT

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 April 10, 2007 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 b

April 5, 2007 6-K

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 April 5, 2007 Commission File No. 0-28578 DASSAULT S

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 April 5, 2007 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

March 30, 2007 6-K

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 March 30, 2007 Commission File No. 0-28578 DASSAULT

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 March 30, 2007 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 b

March 15, 2007 6-K

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 March 15, 2007 Commission File No. 0-28578 DASSAULT

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 March 15, 2007 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 b

March 9, 2007 6-K

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 March 9, 2007 Commission File No. 0-28578 DASSAULT S

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 March 9, 2007 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

February 9, 2007 6-K

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 February 9, 2007 Commission File No. 0-28578 DASSAUL

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 February 9, 2007 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

January 25, 2007 6-K

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 January 25, 2007 Commission File No. 0-28578 DASSAUL

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 January 25, 2007 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

January 10, 2007 6-K

FORM 6-K ENCLOSURES: About Dassault Systèmes SIGNATURES

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OFTHE SECURITIES EXCHANGE ACT OF 1934 Report on Form 6-K dated January 10, 2007 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

December 8, 2006 6-K

FORM 6-K ENCLOSURES: SIGNATURES

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 December 8, 2006 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

December 8, 2006 6-K

FORM 6-K ENCLOSURES: Dassault Systèmes and System@tic Competitive Cluster Catalyze Innovation with Digital Production Defining the Future of Manufacturing SIGNATURES

6K 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 December 8, 2006 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) Indic

December 7, 2006 6-K

FORM 6-K ENCLOSURES: Boeing Simulates and “Manufactures” 787 Dreamliner at Industry-First Event with 3D PLM from Dassault Systèmes SIGNATURES

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 December 7, 2006 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

November 30, 2006 6-K

FORM 6-K ENCLOSURES: Dassault Systèmes Extends the Reach of 3D and PLM with Windows Vista DS to Release New Windows Vista Versions for Full Portfolio, in all Target Markets Dassault Systèmes Press Contacts: SIGNATURES

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 November 30, 2006 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) Indicat

November 13, 2006 CORRESP

Monday 13 November 2006

9, Quai Marcel Dassault, BP 310 92156 Suresnes Cedex, France www.3ds.com Monday 13 November 2006 Barbara C. Jacobs Assistant Director Securities and Exchange Commission Washington, D.C. 20549 Re: Dassault Systemes, S.A. Form 20-F for Fiscal Year Ended December 31, 2005 Filed June 29, 2006 File No. 000-28578 Dear Ms. Jacobs: We have received your letter dated October 31, 2006. Your letter notes tha

October 27, 2006 6-K

FORM 6-K ENCLOSURES: Dassault Systèmes Delivers Strong Revenue and Earnings in the 2006 Third Quarter Third Quarter Highlights Third Quarter Financial Results Revenue EPS and Operating Income and Margin Strategy, Technology, Customers and Partnership

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 October 27, 2006 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

October 4, 2006 6-K

FORM 6-K ENCLOSURES: Dassault Systèmes launches CATIA PLM Express ### SIGNATURES

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 October 4, 2006 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

September 27, 2006 CORRESP

VIA EDGAR (Correspondence) RE: SEC Comment Letter Dated August 17, 2006 (File No. 000-28578) Form 20-F for the Fiscal Year Ended December 31, 2005 Item 5: Operating and Financial Review and Prospects Supplemental Non-GAAP Financial Information SUPPLE

CORRESP 1 filename1.htm Suresnes, September 27, 2006 VIA EDGAR (Correspondence) Mr. Stephen G. Krikorian Accounting Branch Chief Division of Corporation Finance U.S. Securities and Exchange Commission 100 F Street, NE Washington, D.C. 20549 RE: SEC Comment Letter Dated August 17, 2006 (File No. 000-28578) Dear Mr. Krikorian: We have carefully reviewed the comments included in your letter dated Aug

September 5, 2006 6-K

FORM 6-K ENCLOSURES: Dassault Systèmes and IBM Announce Version 5 Release 17 of their Product Lifecyle Management (PLM) Portfolio SIGNATURES

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 5, 2006 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) Indicat

July 27, 2006 6-K

FORM 6-K ENCLOSURES: Ford Designates CATIA V5 as Global Design and Engineering Standard for All New Vehicle Development SIGNATURES

6-K 1 f6k072606-2.htm REPORT OF FOREIGN PRIVATE ISSUER 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 July 27, 2006 Commission File No. 0-28578 DASSAULT SYSTEMES S.A. (Name of Registrant) 9, Quai Marcel Dassault, B.P. 310, 92156 Suresnes Cedex, Fran

July 27, 2006 6-K

FORM 6-K ENCLOSURES: Airbus Expands Commitment to PLM Solutions from IBM and Dassault Systèmes for Product Development Projects ENOVIA: standardizing virtual product development processes ### SIGNATURES

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 July 27, 2006 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

June 30, 2006 EX-4

AGREEMENT AND PLAN OF MERGER BY AND AMONG DASSAULT SYST?MES CORP., AQUA ACQUISITION CORP., ABAQUS, INC., THE REPRESENTATIVE REFERRED TO HEREIN THE SEVERAL OTHER INDIVIDUALS REFERRED TO IN THE SIGNATURE PAGES HERETO Dated as of May 16, 2005 TABLE OF C

Exhibit 4(a)6 Exhibit 4(a).6 AGREEMENT AND PLAN OF MERGER BY AND AMONG DASSAULT SYSTÈMES CORP., AQUA ACQUISITION CORP., ABAQUS, INC., THE REPRESENTATIVE REFERRED TO HEREIN AND THE SEVERAL OTHER INDIVIDUALS REFERRED TO IN THE SIGNATURE PAGES HERETO Dated as of May 16, 2005 -2- TABLE OF CONTENTS Page 1. The Merger 1 1.1. The Merger 1 1.2. Effective Time; Closing 1 1.3. Effect of the Merger 2 1.4. Ar

June 30, 2006 20-F/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 20-F/A (Amendment No. 1) ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2005 Commission file num

20-F/A 1 dassault20fa.htm DASSAULT SYSTEMES FORM 20-F/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 20-F/A (Amendment No. 1) ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2005 Commission file number: 0-28578 DASSAULT SYSTEMES (Exact name of Registrant as specified in its charter) France (

June 30, 2006 EX-4

Amendment 153 to the Amended and Restated License Agreement for the Use and Marketing of Programming Materials dated May 31, 1996 (the "1996 Agreement") International Business Machines Corporation Dassault Systemes, S.A.

Exhibit 4(a).5 Any text removed pursuant to the Company?s confidential treatment has been separately submitted with the U.S. Securities and Exchange Commission and is marked [***] herein. Amendment 153 to the Amended and Restated License Agreement for the Use and Marketing of Programming Materials dated May 31, 1996 (the "1996 Agreement") between International Business Machines Corporation and Das

June 29, 2006 20-F

Form 20-F 2005 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 20-F

Form 20-F 2005 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 20-F (Mark One) o REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2005 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE

June 29, 2006 EX-4

Amendment 151 to the Amended and Restated License Agreement for the Use and Marketing of Programming Materials dated May 31, 1996 (the "1996 Agreement") International Business Machines Corporation Dassault Systemes, S.A.

Exhibit 4(a).3 Any text removed pursuant to the Company?s confidential treatment has been separately submitted with the U.S. Securities and Exchange Commission and is marked [***] herein. Amendment 151 to the Amended and Restated License Agreement for the Use and Marketing of Programming Materials dated May 31, 1996 (the "1996 Agreement") between International Business Machines Corporation and Das

June 29, 2006 EX-12.1

CERTIFICATION

EXHIBIT 12.1 CERTIFICATION I, Bernard Charl?s, certify that: 1. I have reviewed this annual report on Form 20-F of Dassault Syst?mes; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to

June 29, 2006 EX-1.1

DASSAULT SYSTEMES Corporation with registered capital of 115,140,688 euros REGISTERED OFFICE 9, quai Marcel Dassault 92150 Suresnes As of June 14, 2006 Nanterre Commercial Register N°322 306 440 TITLE I FORM - PURPOSE - NAME - PRINCIPAL OFFICE - DURA

Exhibit 1.1 Free translation from French DASSAULT SYSTEMES Corporation with registered capital of 115,140,688 euros REGISTERED OFFICE 9, quai Marcel Dassault 92150 Suresnes BY-LAWS As of June 14, 2006 Nanterre Commercial Register N?322 306 440 TITLE I FORM - PURPOSE - NAME - PRINCIPAL OFFICE - DURATION Article 1 Corporate Form The Company, in the form of a corporation ("soci?t? anonyme"), is gover

June 29, 2006 EX-15

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Exhibit 15(a).1 Exhibit 15(a).1 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (No. 333-100030, 333-13938, 333-8420, 333-5174) of Dassault Systèmes SA of our report dated May 30, 2006 relating to the consolidated financial statements as of and for the year ended December 31, 2005, which appears

June 29, 2006 EX-12.2

CERTIFICATION

Exhibit 12.2 EXHIBIT 12.2 CERTIFICATION I, Thibault de Tersant, certify that: 1. I have reviewed this annual report on Form 20-F of Dassault Systèmes; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleadin

June 29, 2006 EX-13.1

Certification of Chief Executive Officer Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 13.1 Certification of Chief Executive Officer Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 I, Bernard Charl?s, President and Chief Executive Officer of Dassault Syst?mes, a soci?t? anonyme organized under French law (?DASSAULT SYSTEMES?), certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarban

June 29, 2006 EX-4

Amendment 152 to the Amended and Restated License Agreement for the Use and Marketing of Programming Materials dated May 31, 1996 (the "1996 Agreement") International Business Machines Corporation (IBM) Dassault Systemes, S.A. (OWNER)

EX-4 7 exhibit4a4.htm EXHIBIT 4A4 Exhibit 4(a).4 Any text removed pursuant to the Company’s confidential treatment has been separately submitted with the U.S. Securities and Exchange Commission and is marked [***] herein. Amendment 152 to the Amended and Restated License Agreement for the Use and Marketing of Programming Materials dated May 31, 1996 (the "1996 Agreement") between International Bus

June 29, 2006 EX-4

Amendment 150 to the Amended and Restated License Agreement for the Use and Marketing of Programming Materials dated May 31, 1996 (the ?1996 Agreement?) between International Business Machines Corporation (IBM) and Dassault Systemes, S.A. (OWNER)

Exhibit 4(a).2 Any text removed pursuant to the Company?s confidential treatment has been separately submitted with the U.S. Securities and Exchange Commission and is marked [***] herein. Amendment 150 to the Amended and Restated License Agreement for the Use and Marketing of Programming Materials dated May 31, 1996 (the ?1996 Agreement?) between International Business Machines Corporation (IBM) a

June 29, 2006 EX-15

DASSAULT SYSTEMES Société Anonyme 9, quai Marcel Dassault, BP 210 92156 SURESNES CEDEX

EX-15 12 exhibit15a2.htm EXHIBIT 15A2 Exhibit 15(a).2 DASSAULT SYSTEMES Société Anonyme 9, quai Marcel Dassault, BP 210 92156 SURESNES CEDEX CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRMS We consent to the incorporation by reference in the Registration Statement Nos. 333-100030, 333-13938, 333-8420 and 333-5174 on Form S-8 of our report dated June 24, 2005, except for note 1d, as to whi

June 27, 2006 6-K

FORM 6-K ENCLOSURES: Dassault Systèmes Presents CATIA Systems SIGNATURES

6K 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 June 27, 2006 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

June 27, 2006 6-K

FORM 6-K ENCLOSURES: Dassault Systèmes Announces 3D For All Solutions New Release with Life Platform and Experience Players Virtools4 and new 3D Office and 3D XE players democratize 3D Experience SIGNATURES

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 June 27, 2006 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

June 22, 2006 6-K

FORM 6-K ENCLOSURES: Dassault Systèmes Announces ENOVIA 3D Live for Instant 3D Collaboration Online SIGNATURES

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 June 22, 2006 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

June 22, 2006 6-K

FORM 6-K ENCLOSURES: Dassault Systèmes Unveils V5 SOA Strategy Open architecture for collaborative online PLM services SIGNATURES

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 June 22, 2006 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

June 20, 2006 6-K

FORM 6-K ENCLOSURES: Legrand Drives Innovation on Multi-site International Projects with Dassault Systèmes’ Solutions SIGNATURES

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OFTHE SECURITIES EXCHANGE ACT OF 1934 Report on Form 6-K dated June 20, 2006 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

May 22, 2006 6-K

FORM 6-K ENCLOSURES: Boeing’s PLM Implementation Leads Way in Aerospace with Dassault Systèmes Solutions Global Collaborative Environment for 787 with V5 PLM: CATIA, ENOVIA, and DELMIA contributing to program accomplishments SIGNATURES

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 May 22, 2006 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

May 17, 2006 6-K

FORM 6-K ENCLOSURES: Ford Motor Company’s Adoption of CATIA V5 Increases Product Development Efficiency Ford Fusion virtual build development time shortened SIGNATURES

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 May 17, 2006 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

May 12, 2006 6-K

FORM 6-K ENCLOSURES: Dassault Systèmes Announces Completion of Merger with MatrixOne MatrixOne expands DS Product Lifecycle Management to include collaborative business processes across all industries SIGNATURES

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 May 12, 2006 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

April 26, 2006 6-K

FORM 6-K ENCLOSURES: SIGNATURES

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 April 26, 2006 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 b

April 26, 2006 6-K

FORM 6-K ENCLOSURES: IBM and Dassault Systemes Expand PLM Express Portfolio to Help Mid-Sized Companies Differentiate with Style SIGNATURES

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 ACTOF 1934 Report on Form 6-K dated April 26, 2006 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

April 12, 2006 6-K

FORM 6-K ENCLOSURES: Dassault Systèmes Announces ABAQUS® Version 6.6 for Advanced Finite Element Analysis Added performance, new analysis features, and usability improvements extend the value of ABAQUS software for simulation across industries SIGNAT

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 April 12, 2006 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 b

April 5, 2006 6-K

FORM 6-K ENCLOSURES: DASSAULT SYSTEMES SCHEDULES FIRST QUARTER 2006 CONFERENCE CALL WEBCAST FOR MAY 4, 2006 SIGNATURES

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 April 5, 2006 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

March 30, 2006 6-K

FORM 6-K ENCLOSURES: PSA Peugeot Citroën to Take Innovation to the Next Level with PLM Solutions from IBM and Dassault Systèmes SIGNATURES

6-K 1 f6k033006.htm REPORT OF FOREIGN PRIVATE ISSUER 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 March 30, 2006 Commission File No. 0-28578 DASSAULT SYSTEMES S.A. (Name of Registrant) 9, Quai Marcel Dassault, B.P. 310, 92156 Suresnes Cedex, Franc

March 21, 2006 6-K

FORM 6-K ENCLOSURES: SIGNATURES

6-K 1 f6k032006.htm REPORT OF FOREIGN PRIVATE ISSUER 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 March 21, 2006 Commission File No. 0-28578 DASSAULT SYSTEMES S.A. (Name of Registrant) 9, Quai Marcel Dassault, B.P. 310, 92156 Suresnes Cedex, Franc

March 20, 2006 6-K

FORM 6-K ENCLOSURES: Dassault Systèmes announces availability of next generation PLM sourcing solutions SIGNATURES

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 March 20, 2006 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 b

March 14, 2006 6-K

FORM 6-K ENCLOSURES: Claas to Expand Global Leadership Position with PLM Solutions from IBM and Dassault Systèmes SIGNATURES

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 March 14, 2006 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 b

March 2, 2006 6-K

FORM 6-K ENCLOSURES: Dassault Systèmes to acquire MatrixOne IMPORTANT ADDITIONAL INFORMATION WILL BE FILED WITH THE SEC SIGNATURES

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 March 2, 2006 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

February 21, 2006 6-K

FORM 6-K ENCLOSURES: Dassault Systèmes Announces New SIMULIA Partner Program SIMULIA ecosystem unites CAA V5 and ABAQUS alliance programs

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 February 21, 2006 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) Indicat

February 10, 2006 6-K

FORM 6-K ENCLOSURES: Dassault Systèmes reports record revenue and earnings in 2005 on revenue growth of 27% in the Fourth Quarter Fourth Quarter and Full Year Highlights Fourth Quarter Financial Results Revenue Operating Income and Margin and EPS Ful

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 February 10, 2006 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) Indicat

February 10, 2006 6-K

FORM 6-K ENCLOSURES: SIGNATURES

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 February 10, 2006 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) Indicat

January 25, 2006 6-K

FORM 6-K ENCLOSURES: Dassault Systèmes Introduces BPCs: New Off-the-Shelf Components of PLM Industry Solutions Customers can reap the benefit of customized solutions without the costs SIGNATURES

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 January 25, 2006 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

January 24, 2006 6-K

FORM 6-K ENCLOSURES: Alpine Accelerates Time-to-market of Innovative Electronics Products with PLM solutions from IBM and Dassault Systèmes Car audio manufacturer reduces man-hours by 35% on new design of main plastic molded part of car audio using t

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 January 24, 2006 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

January 23, 2006 6-K

FORM 6-K ENCLOSURES: IBM and Dassault Systèmes Collaborate to Integrate 3D XML Technologies with IBM Workplace Fostering innovation and helping to accelerate decision-making by opening 3D collaboration to the extended enterprise SIGNATURES

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 January 23, 2006 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

November 8, 2005 6-K

FORM 6-K ENCLOSURES: Dassault Systèmes and IBM Announce Version 5 Release 16 of their Product Lifecycle Management (PLM) Portfolio New version empowers Innovation Networks The V5R16 release: Growing the Collaborative Manufacturing Community with DELM

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 November 8, 2005 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

October 25, 2005 6-K

FORM 6-K ENCLOSURES: Spirit AeroSystems Increases Real-time Collaboration with PLM Solutions from IBM and Dassault Systèmes Largest independent structures supplier to streamline product development processes with innovative end-to-end PLM solution AB

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 October 25, 2005 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

October 13, 2005 CORRESP

Dassault Systèmes S.A.

CORRESP 1 filename1.htm October 11, 2005 Jason Niethamer Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549 Mail Stop 4561 Re: Dassault Systèmes, S.A. Form 20-F for Fiscal Year ended December 31, 2004 Filed June 28, 2005 File No. 000-28578 Dear Mr. Niethamer: This letter sets forth the responses of Dassault Systèmes to the comments by the s

October 5, 2005 6-K

FORM 6-K ENCLOSURES: Dassault Systèmes and IBM to Provide Added-Value Services Response to Customers’ Challenges in Fast-Growing PLM Market New agreement further strengthens IBM-Dassault Systèmes strategic partnership by maximizing value of global PL

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 October 5, 2005 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

October 5, 2005 6-K

FORM 6-K ENCLOSURES: IBM and Dassault Systèmes Integrate 3D XML Technologies with IBM Lotus Solutions SIGNATURES

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 October 5, 2005 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

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