Director/PDMR Shareholding

GlaxoSmithKline PLC
04 April 2006







   Notification of Transactions of Directors, Persons Discharging Managerial
                      Responsibility or Connected Persons



I give below details of changes in the directors' interests in the Ordinary
Shares and American Depository Shares (ADSs) of GlaxoSmithKline plc.



On 31 March 2006, the following Company's Non-Executive Directors were
provisionally allocated the following awards over Ordinary Shares and ADSs under
the share allocation arrangements for Non-Executive Directors for the period of
service from 1 January 2006 to 31 March 2006 as listed below.


Non Executive Director                     Ordinary Shares        American Depository Shares
                                                                             (ADS)
Sir Christopher Gent                           1,660.39
Mr Lawrence Culp                                                            519.90
Sir Crispin Davis                              1,328.32
Sir Deryck Maughan                                                          519.90
Sir Ian Prosser                                 913.22
Dr Ronaldo Schmitz                              730.57
Dr Lucy Shapiro                                                             129.98
Mr Tom de Swaan                                 249.06
Sir Robert Wilson                               415.10



The Company and the directors were informed of these allocations on 3 April
2006.



This notification relates to transactions notified in accordance with Disclosure
Rule 3.1.4R(1)(b).



S M Bicknell

Company Secretary



4 April 2006


                      This information is provided by RNS
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