Rule 8.1 - London Stock Exchange Plc (LSE)

ABN AMRO BANK N.V. FORM 8.1 DEALINGS BY OFFERORS, OFFEREE COMPANIES OR THEIR ASSOCIATES FOR THEMSELVES OR FOR DISCRETIONARY CLIENTS (Rules 8.1(a) and (b)(i) of the City Code on Takeovers and Mergers) 1. KEY INFORMATION Name of person dealing (Note 1) ABN AMRO BANK NV LONDON BRANCH --------------------------------------------------------------------------------------------------------- Company dealt in London Stock Exchange Plc (LSE) --------------------------------------------------------------------------------------------------------- Class of relevant security to which the Ord GBP 0.058333 dealings being disclosed relate (Note 2) --------------------------------------------------------------------------------------------------------- Date of dealing 24th March 2006 --------------------------------------------------------------------------------------------------------- The disposal of the ordinary shares in London Stock Exchange Plc (a constituent of the FTSE 250 Index) referred to below on the 24th March 2006, was undertaken by ABN AMRO Bank N.V. London Branch as part of a hedge transaction to reduce the economic exposure of the basket swap. The Panel Executive has informed ABN AMRO Bank NV on an ex parte basis that such transactions are permitted and have no Code consequences. 2. INTERESTS, SHORT POSITIONS AND RIGHTS TO SUBSCRIBE (a) Interests and short positions (following dealing) in the class of relevant security dealt in (Note 3) Long Short -------------------------------------------------------------------------------------------------------- Number Number (%) (%) -------------------------------------------------------------------------------------------------------- (1) Relevant securities 1,960 (0.0008%) -------------------------------------------------------------------------------------------------------- (2) Derivatives (other than options) -------------------------------------------------------------------------------------------------------- (3) Options and agreements to purchase/sell -------------------------------------------------------------------------------------------------------- Total 1,960 (0.0008%) -------------------------------------------------------------------------------------------------------- (b) Interests and short positions in relevant securities of the company, other than the class dealt in (Note 3) Class of relevant security: Long Short -------------------------------------------------------------------------------------------------------- Number Number (%) (%) -------------------------------------------------------------------------------------------------------- (1) Relevant securities -------------------------------------------------------------------------------------------------------- (2) Derivatives (other than options) -------------------------------------------------------------------------------------------------------- (3) Options and agreements to purchase/sell -------------------------------------------------------------------------------------------------------- Total -------------------------------------------------------------------------------------------------------- (c) Rights to subscribe (Note 3) Class of relevant security: Details --------------------------------------------------------------------------------------------------------- 3. DEALINGS (Note 4) (a) Purchases and sales Purchase/sale Number of securities Price per unit (Note 5) --------------------------------------------------------------------------------------------------------- Sale 600,000 11.3200 GBP --------------------------------------------------------------------------------------------------------- (b) Derivatives transactions (other than options) Product name, Long/short (Note 6) Number of securities (Note 7) Price per unit (Note 5) e.g. CFD -------------------------------------------------------------------------------------------------------- (c) Options transactions in respect of existing securities (i) Writing, selling, purchasing or varying Product name, Writing, Number of Exercise Type, e.g. Expiry Option money e.g. call option selling, securities to price American, date paid/received purchasing, which the option European per unit (Note varying etc. relates (Note 7) etc. 5) ------------------------------------------------------------------------------------------------------- (ii) Exercising Product name, e.g. call option Number of securities Exercise price per unit (Note 5) --------------------------------------------------------------------------------------------------------- (d) Other dealings (including new securities) (Note 4) Nature of transaction (Note 8) Details Price per unit (if applicable) (Note 5) --------------------------------------------------------------------------------------------------------- 4. OTHER INFORMATION Agreements, arrangements or understandings relating to options or derivatives Full details of any agreement, arrangement or understanding between the person disclosing and any other person relating to the voting rights of any relevant securities under any option referred to on this form or relating to the voting rights or future acquisition or disposal of any relevant securities to which any derivative referred to on this form is referenced. If none, this should be stated. --------------------------------------------------------------------------------------------------------- Is a Supplemental Form 8 attached? (Note 9) YES/NO Date of disclosure 27th March 2006 --------------------------------------------------------------------------------------------------------- Contact name Kirit Devshi --------------------------------------------------------------------------------------------------------- Telephone number 020 7678 1904 --------------------------------------------------------------------------------------------------------- Name of offeree/offeror with which associated Euronext NV --------------------------------------------------------------------------------------------------------- Specify category and nature of associate status (Note 10) Adviser --------------------------------------------------------------------------------------------------------- Notes The Notes on Form 8.1 can be viewed on the Takeover Panel's website at www.thetakeoverpanel.org.uk
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