Director/PDMR Shareholding

GlaxoSmithKline PLC 10 July 2006 Notification of Transactions of Directors, Persons Discharging Managerial Responsibility or Connected Persons I give below details of changes in the interests of Directors, Persons Discharging Managerial Responsibility or Connected Persons in the Ordinary Shares of GlaxoSmithKline plc in respect of the under-mentioned persons arising from the purchase of Ordinary Shares at a price of £15.26 per Ordinary Share on 6 July 2006 through the Company's ShareReward Plan ("the Plan") which the under-mentioned persons entered on 5 October 2001: Mr J S Heslop Acquisition of 8 Ordinary Shares under the Dividend Reinvestment element of the Plan Mr R Bondy Acquisition of 8 Ordinary Shares under the Dividend Reinvestment element of the Plan Mr D Learmouth Acquisition of 8 Ordinary Shares under the Dividend Reinvestment element of the Plan Dr D Pulman Acquisition of 5 Ordinary Shares under the Dividend Reinvestment element of the Plan Mr C Viehbacher Acquisition of 2 Ordinary Shares under the Dividend Reinvestment element of the Plan Mr A P Witty Acquisition of 8 Ordinary Shares under the Dividend Reinvestment element of the Plan The Company and the above-mentioned persons were advised of this information on 7 July 2006. This notification relates to a transaction notified in accordance with Disclosure Rules 3.1.4R(1)(a) and 3.1.4R(1)(b). S M Bicknell Company Secretary 10 July 2006 This information is provided by RNS The company news service from the London Stock Exchange

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