Transaction in Own Shares

AstraZeneca PLC
31 May 2005



REPURCHASE OF SHARES IN ASTRAZENECA PLC



AstraZeneca PLC announced that on 27 May 2005, it purchased for cancellation
600,000 ordinary shares of AstraZeneca PLC at a price of 2343 pence per share.
Upon the cancellation of these shares, the number of shares in issue will be
1,627,084,662.




G H R Musker

Company Secretary

31 May 2005


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