Director/PDMR Shareholding

GlaxoSmithKline PLC
16 October 2007





   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 12 October 2007 at £12.89.

The Company and the above named individual were advised of this transaction on
16 October 2007.

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



S M Bicknell
Company Secretary

16 October 2007



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