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

I give below details of changes in the interests of a Person Discharging Managerial Responsibility in the Ordinary Shares of GlaxoSmithKline plc ("Ordinary Shares") on 2 May 2012:

Mr S M Bicknell

Transfer of 250 Ordinary Shares into an ISA at £14.3225 per share.



The Company and the above mentioned person was advised of this transaction on 3 May 2012.

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

V A Whyte

Company Secretary

3 May 2012


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