Insightful Corporation Announces Operating Results for Second Quarter 2008

Business Wire, July 31, 2008

NOTE TO INVESTORS: SECURITIES LAW DISCLOSURE

Insightful has filed with the Securities and Exchange Commission (the "SEC") a definitive proxy statement and other relevant materials in connection with the merger. The proxy statement has been mailed to the stockholders of Insightful. Before making any voting or investment decision with respect to the merger, investors and stockholders of Insightful are urged to read the proxy statement and the other relevant materials when they become available because they will contain important information about the merger, Insightful and TIBCO. Investors and security holders may obtain free copies of these documents and other documents filed with the SEC at the SEC's web site at www.sec.gov. In addition, investors and security holders may obtain free copies of the documents filed with the SEC by Insightful at Insightful's corporate website at www.insightful.com (under Investors).

Insightful and its officers and directors may be deemed to be participants in the solicitation of proxies from Insightful stockholders with respect to the acquisition. A description of any interests that these officers and directors have in the acquisition is available in the proxy statement. Information concerning Insightful's directors and executive officers also is set forth in the definitive proxy statement. The definitive proxy statement is available free of charge at the SEC's web site at www.sec.gov or at Insightful's corporate website at www.insightful.com (under Investors).

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