Director/PDMR Shareholding

London Stock Exchange Plc
10 March 2006

London Stock Exchange plc (the Company)

10 March 2006

NOTIFICATION OF TRANSACTIONS OF DIRECTORS, PERSONS DISCHARGING MANAGERIAL
RESPONSIBILITY OR CONNECTED PERSONS

Acquisition of shares under the terms of the London Stock Exchange 2004 Long
Term Incentive Plan

On 9 March 2006 London Stock Exchange plc was notified that on that date Mourant
& Co Trustees Limited, the trustee of the London Stock Exchange Employee Benefit
Trust, purchased 7,726 ordinary shares of 55/6 pence each in the Company
(Shares) at a price of £8.59 per Share on behalf of the senior executives noted
below who are participating in the London Stock Exchange Long Term Incentive
Plan 2004 (the LTIP) whereby an employee undertakes to use a percentage of their
bonus to purchase Shares in the Company (Investment Shares) and, in return, are
granted a matching award of Shares.

In return for the senior executives purchasing, or irrevocably committing to use
a fixed sum of money payable from their 2005/06 bonus in purchasing, Investment
Shares the Company has granted them matching awards over such number of Shares
that equals two times the number of Shares that the senior executives could have
bought had the investment of his or her bonus been made on a pre-tax basis (the
Matching Award).

The following senior executives (being persons discharging managerial
responsibilities) acquired interests in Shares under the LTIP as follows:
Director/PDMR     Number and percentage of Number of Shares         Total beneficial holding of
                  issued class of          conditionally awarded    Shares and total percentage
                  Investment Shares        under the Matching Award beneficial holding following
                  purchased at £8.59 per                            notification
                  share of which the
                  trustee is the
                  registered holder
Nicholas          5,666                    19,109                   171,407 (all of which are
Stuchfield                                                          unvested)
                  0.002%
                                                                    0.07%
Paul Kafka        2,060                    6,949                    28,307 (all of which are
                                                                    unvested)
                  0.001%
                                                                    0.01%
Christopher Broad See below                11,581                   101,590 (of which 40,991 are
                                                                    unvested)

                                                                    0.04%

To be eligible to receive the Matching Award, directors and senior executives
must leave their Investment Shares in the trust and remain in employment for a
period of three years from the date of grant of the Matching Award.  The actual
number of Shares transferred to a director or senior executive on the vesting of
the Matching Award will depend on the extent to which a corporate performance
target (which relates to the Company's Total Shareholder Return relative to a
group of comparator companies) is satisfied over the three-year vesting period.

Christopher Broad has made an irrevocable commitment to invest £29,500 from his
2005/06 bonus to purchase Investment Shares and, in return, received a Matching
Award.

Full details of the LTIP are provided in the report on directors' remuneration
in the London Stock Exchange plc 2005 Annual Report.

This notification relates to a disclosure made in accordance with Disclosure
Rule 3.1.4R(1)(a).

Name of contact and telephone number for queries



Lisa Condron, Company Secretary Tel: [phone]



Name and signature of duly authorised officer of issuer responsible for making
notification



Lisa Condron



Date of notification



10 March 2006


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