Director/PDMR Shareholding

GlaxoSmithKline PLC
17 October 2007




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



The Administrators of the SmithKline Beecham Mid-Term Incentive Plan notified
the Company and the under-mentioned persons on 16 October 2007 of an increase in
their interests in Ordinary Share ADRs at a price of $52.41 per ADR following
the re-investment of the dividend paid to shareholders on 11 October 2007.


Dr JP Garnier                                                      1,684.47
Mr D J Phelan                                                      324.88
Mr D M Stout                                                       129.86


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



S M Bicknell
Company Secretary

17 October 2007



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