Director/PDMR Shareholding

London Stock Exchange Group PLC
21 August 2006

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

This form is intended for use by an issuer to make a RIS notification required
by DR 3.1.4R(1).


(1)      An issuer making a notification in respect of a transaction relating to 
         the shares or debentures of the issuer should complete boxes 1 to 16, 
         23 and 24.
(2)      An issuer making a notification in respect of a derivative relating to 
         the shares of the issuer should complete boxes 1 to 4, 6, 8, 13, 14, 
         16, 23 and 24.
(3)      An issuer making a notification in respect of options granted to a 
         director/person discharging managerial responsibilities should complete 
         boxes 1 to 3 and 17 to 24.
(4)      An issuer making a notification in respect of a financial instrument 
         relating to the shares of the issuer (other than a debenture) should 
         complete boxes 1 to 4, 6, 8, 9, 11, 13, 14, 16, 23 and 24.



Please complete all relevant boxes in block capital letters.



1. Name of the issuer

London Stock Exchange Group plc

2. State whether the notification relates to (i) a transaction notified in
accordance with DR 3.1.4R(1)(a); or

(ii) DR 3.1.4(R)(1)(b) a disclosure made in accordance with section 324 (as
extended by section 328) of the Companies Act 1985; or

(iii) both (i) and (ii)

(ii) DR 3.1.4(R)(1)(b) a disclosure made in accordance with section 324 (as
extended by section 328) of the Companies Act 1985



3. Name of person discharging managerial responsibilities/director

Clara Furse and Jonathan Howell

4. State whether notification relates to a person connected with a person
discharging managerial responsibilities/director named in 3 and identify the
connected person

N/A

5. Indicate whether the notification is in respect of a holding of the person
referred to in 3 or 4 above or in respect of a non-beneficial interest

N/A

6. Description of shares (including class), debentures or derivatives or
financial instruments relating to shares

Ordinary shares of 6 79/86p each

7. Name of registered shareholders(s) and, if more than one, the number of
shares held by each of them

Mourant & Co. Trustees Limited as trustees of the London Stock Exchange Employee
Benefit Trust of which the said directors are potential beneficiaries (the '
Trust').

8. State the nature of the transaction

Release of ordinary shares in London Stock Exchange Group plc by the Trust to a
participant in the London Stock Exchange Annual and Initial Share Option Schemes
following an exercise of options under these Schemes.

The participant to whom shares were released is not a director of the London
Stock Exchange Group plc referred to above.  The said directors are amongst the
potential beneficiaries of the Trust and are regarded for Companies Act purposes
as being interested in all the London Stock Exchange Group plc ordinary shares
held by the Trust, although the shares held by the Trust are also held for the
benefit of other employees and ex employees of the Company.  Despite the
technical interest in the shares, a director will only be entitled to receive
that number of shares to which he or she would be entitled on exercise of an
award or option which has been granted to him or her.

9. Number of shares, debentures or financial instruments relating to shares
acquired

N/A

10. Percentage of issued class acquired (treasury shares of that class should
not be taken into account when calculating percentage)

N/A

11. Number of shares, debentures or financial instruments relating to shares
disposed

6,670

12. Percentage of issued class disposed (treasury shares of that class should
not be taken into account when calculating percentage)

0.003%

13. Price per share or value of transaction

5,300 @ £2.3740
1,370 @ £3.6450

14. Date and place of transaction

21 August 2006

15. Total holding following notification and total percentage holding following
notification (any treasury shares should not be taken into account when
calculating percentage)

Number of shares:          2,377,515
Percentage:                1.1%

16. Date issuer informed of transaction

21 August 2006

If a person discharging managerial responsibilities has been granted options by
the issuer complete the following boxes



17 Date of grant

N/A

18. Period during which or date on which it can be exercised

N/A

19. Total amount paid (if any) for grant of the option

N/A

20. Description of shares or debentures involved (class and number)

N/A

21. Exercise price (if fixed at time of grant) or indication that price is to be
fixed at the time of exercise

N/A

22. Total number of shares or debentures over which options held following
notification

N/A

23. Any additional information

N/A

24. 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

21 August 2006


END


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