Transaction in Own Shares

GlaxoSmithKline PLC
11 May 2006


This announcement replaces the original announcement released on 10/05/06 at 
17:54, RNS No: 7840C.

The number of treasury shares held should have read 161,339,678 and not
160,339,678 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 25
May 2005 it purchased 625,000 of its Ordinary shares of 25 pence each ("shares")
on 10 May 2006 at a price of 1544.83 pence per share.

The Company intends to hold these shares in Treasury.

Following the purchase of these shares, the Company holds 161,339,678 of its
shares in Treasury and has 5,820,304,021 shares in issue (excluding Treasury
shares).

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.



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