Transaction in Own Shares

GlaxoSmithKline PLC
01 March 2007

This announcement replaces the original announcement released on 01/03/07 at 
18:12, RNS No: 1851S.

The number of shares purchased should have read 695,000 and not 770,000 as
previously stated.  All other details remain unchanged.

The amended text appears below


                              GlaxoSmithKline PLC


GlaxoSmithKline plc (the "Company") announces that in accordance with the
authority granted by shareholders at the Company's Annual General Meeting on 17
May 2006 it purchased 695,000 of its Ordinary shares of 25 pence each ("shares")
on 01 March 2007 at a price of 1,418.99 pence per share.

The Company intends to hold these shares in Treasury.

Following the purchase of these shares, the Company holds 258,177,678 of its
shares in Treasury.

The Company has 5,751,012,524 shares in issue (excluding Treasury shares). This
number represents the total voting rights in the Company and may be used by
shareholders as the denominator for the calculations by which they can determine
if they are required to notify their interest in, or a change to their interest
in the Company under the Financial Services Authority's Disclosure and
Transparency Rules.

This announcement does not constitute, or form part of, an offer or any
solicitation of an offer to purchase or subscribe for securities in any
jurisdiction and is in conformity with the Transparency Directive's transitional
provision 6.


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