Director/PDMR Shareholding

GlaxoSmithKline PLC
04 June 2007




   Notification of Transactions of Directors, Persons Discharging Managerial
                      Responsibility or Connected Persons


Following a re-valuation of the cash element of the notional investment held
within the US Retirement Savings Plan ("The Plan"), which is notionally held in
GSK Ordinary Share ADRs, the Administrators of the Plan notified GlaxoSmithKline
plc and the under-mentioned persons on 4 June 2007 of:

(i)  An increase in the notional allocation of Ordinary Share ADRs on 1 June
2007 at a price of $51.28 per share:-


Mrs C Bruck Slaoui                  3

Dr R G Greig                       16


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

4 June 2007





                      This information is provided by RNS
            The company news service from the London Stock Exchange