Director/PDMR Shareholding

Directorate Changes

Further to the announcement made on 3 May 2012 regarding the appointment of Ms. Lynn Elsenhans and Ms. Jing Ulrich as Non-Executive Directors with effect from 1 July 2012, the Company confirms that there are no further disclosures to be made in accordance with Listing Rule 9.6.13R.

The Company lists below details of their interests in the American Depositary Shares of GlaxoSmithKline plc (GSK ADS):

Ms L Elsenhans and her connected person, Mr J W Elsenhans, jointly hold 1,000 GSK ADS.

Ms J Ulrich's connected person, Mr P Ulrich, holds 338 GSK ADS.

V A Whyte

Company Secretary

8 May 2012