Director/PDMR Shareholding

GlaxoSmithKline PLC
05 January 2007







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





The Administrators of the GlaxoSmithKline Executive Supplemental Savings Plan
notified the Company and the under-mentioned persons on 5 January 2007 of
changes in their interests in Ordinary Share ADRs arising from an increase in
their interests under the Annual Investment Plan feature following the
re-investment of the dividend paid to shareholders on 4 January 2007 at a price
of $54.72 per share:-




Dr JP Garnier                                                   327.53
Dr F Calhoun                                                    337.60
Dr D Pulman                                                     17.65
Mr D Stout                                                      268.72



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



5 January 2007


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