Transaction in Own Shares

AstraZeneca PLC
24 June 2005

REPURCHASE OF SHARES IN ASTRAZENECA PLC

AstraZeneca PLC announced that on 23 June 2005, it purchased for cancellation
1,250,000 ordinary shares of AstraZeneca PLC at a price of 2271 pence per share.
Upon the cancellation of these shares, the number of shares in issue will be
1,618,848,668.

G H R Musker

Company Secretary

24 June 2005


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