State Street's Joseph Antonellis Honored as Premier 100 IT Leader by

    Business Editors

    BOSTON--(BUSINESS WIRE)--Jan. 5, 2005--State Street Corporation (NYSE: STT), the world's leading provider of services to institutional investors, announced today that Joseph Antonellis, chief information officer, has been named a Computerworld Premier 100 IT Leader for 2005. Antonellis was selected from a pool of more than 600 candidates and will join fellow honorees at the 6th annual Premier 100 IT Leaders Conference March 6-8 at the JW Marriott Desert Ridge Resort in Scottsdale, Arizona.
    Antonellis oversees information technology at State Street, including the development and implementation of the global technology architecture to support large-scale transaction processing, product capabilities, and investment strategies for State Street's clients worldwide. He is also head of Wealth Manager Services and Securities Services for State Street worldwide. Antonellis joined State Street in 1991 and has held a number of leadership positions at the company, including head of Master Trust and executive vice president and head of State Street's Institutional Investor Services.
    "Joe's recognition as a member of this prestigious listing of IT leaders underscores his capacity to effectively manage critical IT issues and develop the best solutions for our customers," said Ronald E. Logue, chief executive officer of State Street.
    The Premier 100 IT Leaders award honors executives who show exemplary technology leadership in resolving pressing business problems. Honorees demonstrate the ability to foster creativity and challenging work environments, envision fresh approaches to business challenges and effectively manage IT investments.
    Nominees were measured against Computerworld's IT Leadership Index, a set of characteristics that describes executives who guide the effective use of IT in their organizations, and evaluated by Computerworld editors and by an external panel of outside judges. The complete list of Premier 100 IT Leaders can be found in the January 3, 2005 issue of Computerworld and online at www.computerworld.com/p1002005.
    "This group of men and women have proven themselves through all facets of business, including some of the toughest challenges, such as cultural hurdles, language barriers, corporate politics, internal/external communication, and maintaining fresh, creative ideas," said Don Tennant, editor in chief for Computerworld. "They think out of the box and do not cower away from difficult projects; rather, they embrace the struggle while foreseeing the opportunities it can bring in the future."

    About State Street

    State Street Corporation (NYSE: STT) is the world's leading specialist in providing institutional investors with investment servicing, investment management and investment research and trading. With $9.0 trillion in assets under custody and $1.2 trillion in assets under management, as of September 30, 2004, State Street operates in 24 countries and more than 100 markets worldwide. For more information, visit State Street's Web site at www.statestreet.com.

    About Computerworld

    Computerworld, the "Voice of IT Management," is the most trusted source for the critical information needs of senior IT management. Computerworld's integrated offerings form the U.S.-based hub of the world's largest (58-edition) global IT media network through its weekly publication, Computerworld.com Web site, focused conference series and custom research. In the past five years alone, Computerworld has won more than 100 print and online awards for editorial and design excellence, surpassing its direct competition by an order of magnitude. Recognition includes the 2004 Magazine of the Year Award from the American Society of Business Publication Editors and a Jesse H. Neal Award for "Best News Coverage." In print since 1967, Computerworld is the source for information technology management, with a guaranteed rate base of 180,050, a total print audience of 1,138,000 (IntelliQuest CIMS 2004 Business Influencer Study) and an online audience of over 1 million unique monthly visitors (DoubleClick).
    Computerworld is a business unit of International Data Group (IDG), the world's leading technology media, research and events company. A privately held company, IDG publishes more than 300 magazines and newspapers, including Bio-IT World, CIO, CSO, Computerworld, GamePro, InfoWorld, Network World and PC World. The company features the largest network of technology-specific Web sites, with more than 400 around the world. IDG is also a leading producer of more than 170 computer-related events worldwide, including LinuxWorld Conference & Expo(R), Macworld Conference & Expo(R), DEMO(R) and IDC Directions. IDC provides global market research and advice through offices in 50 countries. Company information is available at http://www.idg.com.

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CONTACT: State Street Corporation Richard Pearl, 617-664-3107

KEYWORD: ARIZONA MASSACHUSETTS INDUSTRY KEYWORD: BANKING NETWORKING INTERNET E-COMMERCE PRODUCT SOURCE: State Street Corporation

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