Director/PDMR Shareholding

GlaxoSmithKline PLC
02 October 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 30 September 2006, the following 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 July 2006 to 30 September 2006 as listed below.


Non Executive Director        Ordinary Shares        American Depository Shares
                                                              (ADS)

Sir Christopher Gent               1,755.62
Mr Lawrence Culp                                             678.66
Sir Crispin Davis                  1,053.37
Sir Deryck Maughan                                           678.66
Dr Daniel Podolsky                                           254.50
Sir Ian Prosser                    790.03
Dr Ronaldo Schmitz                 632.02
Mr Tom de Swaan                    263.34
Sir Robert Wilson                  351.12





The Company and the directors were informed of these allocations on 2 October
2006.



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



S M Bicknell

Company Secretary



2 October 2006


                      This information is provided by RNS
            The company news service from the London Stock Exchange