Dassault Systemes to acquire MatrixOne

Paris, France and Westford, MASS. March 2, 2006 – Dassault Systemes (DS), a world leader in 3D and Product Lifecycle Management (PLM) solutions, and MatrixOne, Inc., a leading provider of collaborative PLM solutions for the value chain, today jointly announced a merger agreement pursuant to which Dassault Systèmes would acquire MatrixOne for $7.25 per share in cash, representing a total transaction value of approximately $408 million.