GlaxoSmithKline plc
Notification of Transactions of Directors, Persons Discharging Managerial Responsibility or Connected Persons
In accordance with DTR 3.1.4R (1) (a) I give details of changes in the interests of Mr Philip Thomson, a Person Discharging Managerial Responsibilities, in the ordinary shares of GlaxoSmithKline plc (the "Company") following the exercise of nil cost options over 1,087 and 411 ordinary shares on 9 May 2016, granted on 28 February 2013, which vested on 28 February 2016 under the GlaxoSmithKline Deferred Annual Bonus Plan. The Company delivered the net of tax value in shares being 778. The fair market value of an ordinary share at the points of exercise on 9 May 2016 was £14.53 and £14.54 respectively.
The Company and Mr Thomson were advised of these transactions on 10 May 2016.
V A Whyte
Company Secretary
10 May 2016