Director/PDMR Shareholding

GlaxoSmithKline PLC
12 November 2007




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


I give below details of changes in the interests of the under-mentioned Director
and Persons Discharging Managerial Responsibility in the Ordinary shares of
GlaxoSmithKline plc arising from the purchase of Ordinary shares at a price of
£11.84 per Ordinary share on 9 November 2007 through the Company's Share Reward
Plan ("the Plan").


Mr J S Heslop         Acquisition of 10 Ordinary shares under the partnership 
                      element of the Plan (personal contribution)


                      Acquisition of 10 Ordinary shares under the matching 
                      element of the Plan (Company contribution)


Mr R Bondy            Acquisition of 10 Ordinary shares under the partnership 
                      element of the Plan (personal contribution)


                      Acquisition of 10 Ordinary shares under the matching 
                      element of the Plan (Company contribution)


Mr D Learmouth        Acquisition of 10 Ordinary shares under the partnership 
                      element of the Plan (personal contribution)


                      Acquisition of 10 Ordinary shares under the matching 
                      element of the Plan (Company contribution)


Mr A P Witty          Acquisition of 10 Ordinary shares under the partnership
                      element of the Plan (personal contribution)


                      Acquisition of 10 Ordinary shares under the matching 
                      element of the Plan (Company contribution)

The Company and the above-mentioned persons were advised of this information on
12 November 2007.



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





S M Bicknell
Company Secretary



12 November  2007


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