Director/PDMR Shareholding

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

I give below details of changes in the interests of Sir Andrew Witty, a Director, and his Connected Persons, in the Ordinary Shares of GlaxoSmithKline plc (the "Company"):

(a) The disposal on 7 February 2014 by Sir Andrew by way of gift of 50 Ordinary shares in the Company;

(b) The transfer on 7 February 2014 by way of gift of 500 Ordinary shares in the Company from Sir Andrew to one of his children; and

(c) The transfer on 10 February 2014 by way of gift of 1,250 Ordinary shares in the Company from Sir Andrew to his other child.

The Company was advised of these transactions on 10 February 2014.

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

Sonja Arsenić 

Corporate Secretariat

10 February 2014