Director/PDMR Shareholding

GlaxoSmithKline PLC
17 January 2007






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





The Administrators of the GlaxoSmithKline Annual Investment Plan notified the
Company and the under mentioned persons on 17 January 2007 of an increase in
their interests in Ordinary Shares at a price of £13.70 per share following the
re-investment of the dividend paid to shareholders on 4 January 2007:-




Dr M M Slaoui                                          183
Mr R Bondy                                             238
Mr M Dunoyer                                           88
Mr D Learmouth                                         36
Dr D Pulman                                            136
Mr A Witty                                             82



This notification relates to a transaction notified in accordance with
Disclosure Rules 3.1.4R(1)(a) and 3.1.4R(1)(b).





S M Bicknell

Company Secretary



17 January 2007


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