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New York, NY and London – May 22, 2006 – GemStone Systems, the leading provider of the Enterprise Data Fabric, today announced the appointment of Michael Di Stefano as Vice President – Architect, Financial Services. Di Stefano will be responsible for helping to grow GemStones’ financial services offering and manage the professional services group, both in North America and Europe.

Most recently, Di Stefano served as CEO of IntegraSoft, a consultancy services and technology company he founded that specializes in delivering grid computing and data grid solutions to the financial and insurance verticals. He joins GemStone with more than 17 years of experience in the financial services and technology sectors, including key roles at the American Stock Exchange, Merrill Lynch, Dow Jones Markets, and Sun Microsystems. Di Stefano brings extensive industry expertise and a proven track record of delivering order management, equity trading, and fixed income trading systems and solutions to leading financial organizations. In addition, he has been at the forefront of technology research and industry trend identification, and is regarded as an authority on managing dynamic data sets in grid architectures and designing highly distributed computing systems for financial firms.

“As our financial services customer base continues to globally expand, it is vital that we be able to adjust and respond to evolving client needs and provide our end-users with superior service,” said Dan Ware, EVP, worldwide sales at GemStone. “Michael’s deep industry experience working with the world’s largest financial institutions will be invaluable to us and our customers as we continue to grow our financial services offering and our professional services infrastructure, both in the US and Europe.”

Di Stefano has authored several technical whitepapers and articles and has published a book on grid computing titled Distributed Data Management for Grid Computing (John Wiley and Sons, 2005). He holds a Bachelor’s of Engineering degree in Engineering Science from the State University of New York and a Master’s of Electrical Engineering from Stevens Institute of Technology.