Director/PDMR Shareholding

GlaxoSmithKline PLC
16 January 2008






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



I give below details of changes in interests in the Ordinary shares of
GlaxoSmithKline plc in respect of the under-mentioned person:



Mr R M Bondy acquired a beneficial interest in 2 Ordinary shares purchased under
a Personal Equity Plan on 11 January 2008 at £13.65.



The Company and the above named individual were advised of this transaction on

16 January 2008.



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





S M Bicknell

Company Secretary



16 January 2008


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