Director/PDMR Shareholding

GlaxoSmithKline PLC
16 August 2005


         Notification of Transactions of Directors, Persons Discharging

                 Managerial Responsibility or Connected Persons


Following an administrative error in the calculation of the notional
re-investment of the dividend paid to shareholders on 7 July 2005, which the
Company announced on 11 July 2005, the Administrators of the GlaxoSmithKline
Performance Share Plan notified the Company and the under-mentioned persons on
15 August 2005 of a change to their notional interests in Ordinary Shares at a
price of £13.28 per Ordinary Share and Ordinary Share ADRs at a price of $50.03
per ADR.

The correct increase in the notional interests in Ordinary Shares and Ordinary
Share ADRs is as follows:


Dr J P Garnier                                          3,126.369    ADRs


Mr J Heslop                                             117.838      Ordinary Shares


Dr T Yamada                                             937.911      ADRs


Mr R Bondy                                              1,193.502    Ordinary Shares


Mr W Calhoun                                            390.797      ADRs


Mr M Dunoyer                                            449.501      Ordinary Shares


Mr R Greig                                              390.797      ADRs


Mr D Phelan                                             601.826      ADRs


Dr D Pulman                                             394.878      Ordinary Shares

                                                        191.711      ADRs


Mr D Stout                                              1,156.757    ADRs


Mr C Viehbacher                                         601.826      ADRs


Mr A Witty                                              1,051.346    Ordinary Shares


Mrs J Younger                                           271.25       Ordinary Shares


Mr J Ziegler                                            601.826      ADRs


The notional dividends accrued will be paid out in proportion to the percentage
of participants' Performance Share Plan holdings that vest following the end of
the relevant three year measurement period.

This notification relates to a transaction notified in accordance with
Disclosure Rules 3.1.4R(1)(a) and 3.1.4R(1)(b) and replaces RNS Announcement
7589O released on 11 July 2005.


S M Bicknell
Company Secretary

16 August 2005


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