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MatrixOne, Inc. to Release Fourth Quarter Financial Results On August 1st After the Market Close

    CHELMSFORD, Mass.--July 12, 2001--MatrixOne, Inc. announced today that it will release financial results for its fourth quarter of fiscal year 2001 on Wednesday, August 1, 2001, after the close of regular trading.
    The Company will host a live conference call and webcast at 5:30 p.m. Eastern Daylight Time to discuss the financial results and management's forward-looking guidance for the first quarter and fiscal year 2002. Mark O'Connell, the Company's president and chief executive officer, and Moe Castonguay, the Company's chief financial officer, will lead the call.
    The public is invited to listen to the conference via webcast by visiting the Company's Investor Relations Web site at http://investor.matrixone.com. From this site, listeners can download necessary software to listen to the teleconference.

    Information regarding the live webcast is as follows:


Topic:              Q4 2001 MatrixOne Earnings Conference Call
Date:               Wednesday, August 1, 2001
Time:               5:30 p.m. EDT /2:30 p.m. PDT
Location/URL:       http://investor.matrixone.com


    From this site, click on "live webcast" to listen to the teleconference. MatrixOne encourages listeners to visit the pre-event system test in advance of the conference to ensure proper configuration. A replay of the webcast will be available two hours following the call.

    About MatrixOne, Inc.

    MatrixOne, Inc. is the first in Intelligent Collaborative Commerce(TM). The Company's Internet software products provide an infrastructure for establishing business-to-business collaboration among trusted customers, suppliers and other business partners, while also enabling secure access to independent trading communities and applications within private and public net markets. The eMatrix(TM) platform and Value Chain Portfolio(TM) applications use the Internet to link people, processes and information to enable dramatic improvements in profitability and efficiency throughout the value chain.
    MatrixOne has global customers in the high technology, aerospace/defense, automotive, communications, consumer, mechanical, machinery, medical equipment and process industries, including General Electric, John Deere, Procter & Gamble, Nokia, Philips, Siemens, Alcatel, JDS Uniphase and Honda. These companies are using MatrixOne solutions to enhance their competitive advantage in the burgeoning business-to-business economy.
    Headquartered in Chelmsford, Massachusetts, MatrixOne (www.matrixone.com) maintains offices in North America, Europe and Asia.
    eMatrix, Value Chain Portfolio and Intelligent Collaborative Commerce are trademarks of MatrixOne.

    Safe Harbor Statement under the Private Securities Litigation Reform Act of 1995 - Forward-looking statements in this release are not promises or guarantees and are subject to risks and uncertainties that could cause our actual results to differ materially from those anticipated. We caution you not to place undue reliance upon any such forward-looking statements, which speak only as of the date made. Such statements may relate, among other things, to our plans, objectives and expected financial and operating results. Forward-looking statements will also include, without limitation, any statement relating to future events, conditions or circumstances or using words such as: will, believe, anticipate, expect, could, may, estimate, project, plan, predict, or intend. The risks and uncertainties that may affect forward-looking statements include, among others: the market may not accept our products; our sales cycle is lengthy and variable; we may be unable to develop new products and services that keep pace with technology; we may be unable to develop and maintain successful relationships with systems integrators and complementary technology vendors, our international operations are subject to greater business risks than our domestic operations, future acquisitions may adversely affect our operations and financial results, we may be unable to manage our rapid growth which places a significant strain on our resources, and increased competition may have an adverse effect on pricing, revenues, gross margins and our customer base. For a more detailed discussion of the risks and uncertainties of our business, please refer to our periodic reports and registration statements filed with the Securities and Exchange Commission, including our Annual Report on Form 10-K for the fiscal year ended July 1, 2000.