Director/PDMR Shareholding

GlaxoSmithKline PLC 30 March 2007 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 and Ordinary Share ADRs ("ADRs") of GlaxoSmithKline plc ("the Company"). 26 March 2007 Abacus (GSK) Trustees Limited, as trustee of the GlaxoSmithKline Employee Trust, ("the GSK Trust"), sold 2,839 Ordinary Shares in the Company at a price of £13.99 per share on behalf of participants in the GlaxoSmithKline Share Value Plan. The GSK Trust transferred 15,482 Ordinary Shares of GlaxoSmithKline plc to participants in the GlaxoSmithKline Share Value Plan. 28 March 2007 The GSK Trust transferred 17,505 Ordinary Shares in the Company to participants in the SmithKline Beecham Employee Share Option Plan 1991. The Company was advised of these transactions on 29 March 2007. The GSK Trust is a discretionary trust of which all employees or former employees of GlaxoSmithKline plc and its subsidiaries are potential beneficiaries. Three of the Company's directors, Dr JP Garnier, Dr M M Slaoui and Mr J S Heslop are therefore interested in the shares held in the GSK Trust from time to time in the same way as other employees or former employees of GlaxoSmithKline plc and its subsidiaries. This notification relates to a transaction notified in accordance with Disclosure Rule 3.1.4R(1)(b). S M Bicknell Company Secretary 30 March 2007 This information is provided by RNS The company news service from the London Stock Exchange

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GSK (GSK)
UK 100

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