Director/PDMR Shareholding

Smiths Group PLC
29 October 2007


29 OCTOBER 2007
SMITHS GROUP PLC

DTR 3.1.4R(1)

NOTIFICATION OF TRANSACTION OF DIRECTORS, PERSONS DISCHARGING MANAGERIAL
RESPONSIBILITY OR CONNECTED PERSONS
     
1.   Name of the issuer: SMITHS GROUP PLC

2.   State whether the notification relates to (i) a transaction notified in
     accordance with DTR 3.1.4R(1)(a); or (ii) DTR 3.1.4(R)(1)(b) a disclosure 
     made in accordance with section 793 of the Companies Act 2006; or (iii) 
     both (i) and (ii):  (i)

     DISCLOSURE RELATING TO A DIRECTOR

3.   Name of person discharging managerial responsibilities/director:

     MR DAVID PETER LILLYCROP

4.   State whether notification relates to a person connected with a person
     discharging managerial responsibilities/director named in 3 and identify 
     the connected person:  NO

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 nonbeneficial interest:

     NOTIFICATION RE HOLDING OF THE DIRECTOR NAMED IN 3 ABOVE

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

     ORDINARY SHARES OF 37.5p

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

     DIRECTOR NAMED IN 3 ABOVE

8    State the nature of the transaction:

     (i)  EXERCISE OF SHARE OPTION GRANTED UNDER THE TI GROUP 1990 EXECUTIVE 
          SHARE OPTION SCHEME; AND
          
     (ii) MARKET SALE OF SHARES
     
9.   Number of shares, debentures or financial instruments relating to shares
     acquired:

     23,364 SHARES

10.  Percentage of issued class acquired (treasury shares of that class should
     not be taken into account when calculating percentage): <0.01%

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

     22,228 SHARES

12.  Percentage of issued class disposed (treasury shares of that class should
     not be taken into account when calculating percentage): <0.01%

13.  Price per share or value of transaction:

     OPTION EXERCISE PRICE 1026.66p PER SHARE

     SHARE SALE PRICE 1122.9007p PER SHARE

14.  Date and place of transaction: 29 OCTOBER 2007 LONDON

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

     93,453 SHARES - 0.02%

16.  Date issuer informed of transaction  29 OCTOBER 2007

If a person discharging managerial responsibilities has been granted options by
the issuer complete the following boxes
     
17.  Date of grant:

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

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

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

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

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

23.  Any additional information:

24.  Name of contact and telephone number for queries: NEIL BURDETT - 020 8457
     8229

Name of duly authorised officer of issuer responsible for making notification:

NEIL BURDETT

Date of notification  29 OCTOBER 2007



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