Autonomy Sets Date for Annual General Meeting ofShareholders; Proposes 3-For-1 Stock Split.

Business Editors

LONDON--(BUSINESS WIRE)--June 22, 2000

Autonomy Corporation plc (EASDAQ:AUTN)(Nasdaq:AUTN), a leading provider of Internet infrastructure technology, announces today that its Board of Directors has set July 20, 2000, as the date for its Annual General Meeting

If approved, each of Autonomy's ordinary shares, nominal value 1p per share, and ordinary shares represented by ADSs, will represent three new ordinary shares, nominal value 1/3p per share, effective on August 1, 2000. After the split, Autonomy will have approximately 125,300,000 ordinary shares outstanding.

The Annual General Meeting of Autonomy will be held at Hasilwood House, 60 Bishopsgate, London EC2N 4AJ on Thursday 20 July 2000 at 3.00p.m. (London time).

ALL SHAREHOLDERS NOT PLANNING TO ATTEND THE MEETING IN PERSON ARE URGED TO SEND INSTRUCTIONS FOR THE VOTING OF THEIR SHARES SO THAT THEIR SHARES WILL BE REPRESENTED AT THE MEETING.

Please contact your financial intermediary for the procedure to follow in order to vote your shares.

Copies of Autonomy's Notice of Annual General Meeting, Form of Proxy and Directors' and Auditors' Reports and the Statement of Accounts for the year ended 31 December 1999 together with Autonomy's annual report may be obtained directly from Autonomy as well as from your financial intermediary. The Directors' and Auditors' Reports and the Statement of Accounts for the year ended 31 December 1999 together with Autonomy's annual report are also available on Autonomy's web site located at www.autonomy.com. To request any such materials from Autonomy, please contact Matthew Lobo either by mail c/o Autonomy Corporation plc, St Johns Innovation Centre, Cowley Road, Cambridge, CB4 4WS, England, or by email at mattl@autonomy.com. If you have any questions generally regarding this notice, you may contact Mr. Lobo by telephone at 44 (0) 1223-421220.

About Autonomy Corporation plc

Autonomy's technology powers large-scale, personalised systems for the Enterprise, Internet and other Digital domains. Because of its ability to analyse any piece of text (independent of the document's language) and identify and rank the main ideas, Autonomy can automate a broad range of otherwise labour intensive tasks. These range from categorising information by subject matter, to inserting hypertext links to related material, to profiling users based on the ideas in the text they read or write, to delivering information to those most likely to be interested.

Autonomy was founded in 1996 and has offices in Atlanta, Boston, Chicago, Dallas, San Francisco, New York, and Washington, D.C. in the United States, as well as offices in Amsterdam, Brussels, Cambridge, England, Frankfurt, Milan, Paris, Oslo and Sydney.

Among its 200-plus customers are Alcatel, Associated Press, British Aerospace, Clorox, News Corp., Lucent Technologies, Merrill Lynch, SF Gate, Semi-tech, The Royal Mail, Unilever, and the United States Department of Defense. In addition, several software companies are licensing Autonomy's technology to add intelligence to their online publishing, knowledge management, email routing and document management applications, including Aeneid, Brio, CoreChange, Delano, Filenet, FutureTense, Hyperwave, Insight, Intranet Solutions, Intraspect, KnowledgeTrack, Global Recall, Nexor, Novient, OpenMarket, Sagemaker, Sybase, Verge and Vignette.