Annual Information Update

AstraZeneca PLC 28 March 2006 ASTRAZENECA PLC ANNUAL INFORMATION UPDATE As required under the Prospectus (Directive 2003/71/EC) Regulations 2005 and paragraph 5.2 of the Prospectus Rules, and following publication of the Annual Report and Form 20-F Information on 28 February 2006, AstraZeneca PLC is presenting its first Annual Information Update in relation to information that has been published or made available to the public between 1 February 2005 and 27 March 2006. This Annual Information Update is also being made available on the Investors section of our website, www.astrazeneca.com. The information referred to in this Annual Information Update was correct at the time it was published but may now be out of date. 1. Announcements made via a RIS The documents listed below were published via a Regulatory Information Service on or around the dates indicated. Date Description of Contents of Announcement 27/03/06 Transaction in Own Shares 24/03/06 Transaction in Own Shares 20/03/06 Notice of AGM 20/03/06 Transaction in Own Shares 17/03/06 Transaction in Own Shares 14/03/06 Seminar on Merck Arrangements 13/03/06 Crestor 09/03/06 Patent Writ 06/03/06 Director/PDMR Shareholding 01/03/06 Director/PDMR Shareholding 28/02/06 Director/PDMR Shareholding 28/02/06 Director/PDMR Shareholding 28/02/06 Annual Report and Accounts 23/02/06 Transaction in Own Shares 22/02/06 Transaction in Own Shares 17/02/06 Transaction in Own Shares 16/02/06 Toprol-XL 14/02/06 Exanta 13/02/06 Transaction in Own Shares 10/02/06 Transaction in Own Shares 09/02/06 Transaction in Own Shares 06/02/06 Transaction in Own Shares 03/02/06 Transaction in Own Shares 02/02/06 Final Results (in 3 parts) 01/02/06 Notice of Results 24/01/06 Director/PDMR Shareholding 18/01/06 Toprol-XL 03/01/06 Seroquel 28/12/05 Collaboration Agreement 23/12/05 KuDOS Pharmaceuticals 22/12/05 Collaboration 20/12/05 Holding(s) in Company 16/12/05 Transaction in Own Shares 15/12/05 Director/PDMR Shareholding 15/12/05 Transaction in Own Shares 14/12/05 Transaction in Own Shares 09/12/05 Transaction in Own Shares 08/12/05 Licensing Agreement 08/12/05 Transaction in Own Shares 07/12/05 Transaction in Own Shares 02/12/05 Director/PDMR Shareholding 02/12/05 Transaction in Own Shares 01/12/05 Transaction in Own Shares 30/11/05 Holding(s) in Company 29/11/05 Transaction in Own Shares 24/11/05 Holding(s) in Company 24/11/05 Transaction in Own Shares 23/11/05 Holding(s) in Company 22/11/05 Nexium 22/11/05 Transaction in Own Shares 21/11/05 Transaction in Own Shares 18/11/05 Transaction in Own Shares 17/11/05 Holding(s) in Company 17/11/05 Transaction in Own Shares 16/11/05 Transaction in Own Shares 15/11/05 Transaction in Own Shares 14/11/05 Transaction in Own Shares 11/11/05 Transaction in Own Shares 10/11/05 Transaction in Own Shares 09/11/05 Seroquel 07/11/05 Transaction in Own Shares 04/11/05 Transaction in Own Shares 03/11/05 Transaction in Own Shares 01/11/05 Holding(s) in Company 31/10/05 Zactima 31/10/05 Transaction in Own Shares 28/10/05 Holding(s) in Company 27/10/05 3rd Quarter Results (in 2 parts) 26/10/05 Notice of Results 21/10/05 Seroquel 18/10/05 Nexium ANDA 03/10/05 Transaction in Own Shares 29/09/05 Transaction in Own Shares 28/09/05 Seroquel ANDA 28/09/05 Transaction in Own Shares 23/09/05 Regulatory Application 22/09/05 Transaction in Own Shares 21/09/05 Transaction in Own Shares 20/09/05 Transaction in Own Shares 16/09/05 Transaction in Own Shares 15/09/05 Transaction in Own Shares 14/09/05 Transaction in Own Shares 13/09/05 Transaction in Own Shares 09/09/05 Transaction in Own Shares 07/09/05 Transaction in Own Shares 05/09/05 Transaction in Own Shares 31/08/05 Transaction in Own Shares 26/08/05 Transaction in Own Shares 25/08/05 Director/PDMR Shareholding 24/08/05 Transaction in Own Shares 23/08/05 Transaction in Own Shares 19/08/05 Transaction in Own Shares 18/08/05 Transaction in Own Shares 17/08/05 Transaction in Own Shares 15/08/05 Transaction in Own Shares 12/08/05 Transaction in Own Shares 11/08/05 Transaction in Own Shares 10/08/05 Transaction in Own Shares 08/08/05 Transaction in Own Shares 04/08/05 Transaction in Own Shares 02/08/05 Holding(s) in Company 28/07/05 Interim Results (in 2 parts) 28/07/05 Directorate Change 27/07/05 Notice of Results 01/07/05 Acquisition 01/07/05 Transaction in Own Shares 30/06/05 Director Shareholding 30/06/05 Transaction in Own Shares 24/06/05 Transaction in Own Shares 21/06/05 Transaction in Own Shares 17/06/05 Transaction in Own Shares 16/06/05 Transaction in Own Shares 15/06/05 Outcome of EC Investigation 10/06/05 Transaction in Own Shares 08/06/05 Transaction in Own Shares 07/06/05 Transaction in Own Shares 06/06/05 Transaction in Own Shares 02/06/05 Transaction in Own Shares 01/06/05 Director Shareholding 01/06/05 Transaction in Own Shares 31/05/05 Transaction in Own Shares 27/05/05 Transaction in Own Shares 25/05/05 Transaction in Own Shares 24/05/05 Transaction in Own Shares 23/05/05 Director Shareholding 20/05/05 Transaction in Own Shares 17/05/05 Transaction in Own Shares 16/05/05 Transaction in Own Shares 11/05/05 Transaction in Own Shares 10/05/05 Transaction in Own Shares 06/05/05 Director Shareholding 06/05/05 AGM Resolutions 06/05/05 Transaction in Own Shares 05/05/05 Director Shareholding 04/05/05 Cerovive 28/04/05 Result of AGM 28/04/05 1st Quarter Results (in 2 parts) 27/04/05 Notice of Results 07/04/05 Director Shareholding 01/04/05 Nexium 31/03/05 Director Shareholding 29/03/05 Director Shareholding 29/04/05 Director Shareholding 23/03/05 Notice of AGM 21/03/05 Transaction in Own Shares 18/03/05 Transaction in Own Shares 17/03/05 Transaction in Own Shares 15/03/05 Director Shareholding 14/03/05 Directorate Change 14/03/05 Transaction in Own Shares 10/03/05 Transaction in Own Shares 08/03/05 Transaction in Own Shares 03/03/05 Holding(s) in Company 03/03/05 Holding(s) in Company 02/03/05 Transaction in Own Shares' 01/03/05 Director Shareholding 28/02/05 Transaction in Own Shares 25/02/05 Transaction in Own Shares 24/02/05 Transaction in Own Shares 23/02/05 Regulatory Approval 22/02/05 Annual Report and Accounts 21/02/05 Transaction in Own Shares 15/02/05 Transaction in Own Shares 14/02/05 Transaction in Own Shares 11/02/05 Transaction in Own Shares 10/02/05 Transaction in Own Shares 07/02/05 Transaction in Own Shares 04/02/05 Transaction in Own Shares 02/02/05 Transaction in Own Shares All of the above documents are available for download on the Prices and News section of the London Stock Exchange website, www.londonstockexchange.com. 2. Documents filed at Companies House All of the documents below were filed with the Registrar of Companies in England and Wales on or around the dates indicated. Date Document type 08/03/06 Form 169 - Return by a Company Purchasing its Own Shares 08/03/06 Form 169 - Return by a Company Purchasing its Own Shares 27/01/06 Form 169 - Return by a Company Purchasing its Own Shares 11/01/06 Form 88(2)R - Return of an Allotment of Shares 11/01/06 Form 88(2)R- Return of an Allotment of Shares 11/01/06 Form 88(2)R- Return of an Allotment of Shares 11/01/06 Form 88(2)R- Return of an Allotment of Shares 11/01/06 Form 88(2)R- Return of an Allotment of Shares 04/01/06 Form 288b - Director Resigned 06/01/06 Form 169 - Return by a Company Purchasing its Own Shares 06/01/06 Form 169 - Return by a Company Purchasing its Own Shares 21/12/05 Form 169 - Return by a Company Purchasing its Own Shares 21/12/05 Form 169 - Return by a Company Purchasing its Own Shares 21/12/06 Form 169 - Return by a Company Purchasing its Own Shares 13/12/06 Form 169 - Return by a Company Purchasing its Own Shares 13/12/06 Form 169 - Return by a Company Purchasing its Own Shares 13/12/06 Form 169 - Return by a Company Purchasing its Own Shares 14/11/05 Interim Accounts made up to 30/09/05 27/10/05 Form 169 - Return by a Company Purchasing its Own Shares 27/10/05 Form 169 - Return by a Company Purchasing its Own Shares 24/10/05 Form 88(2)R - Return of an Allotment of Shares 24/10/05 Form 88(2)R - Return of an Allotment of Shares 24/10/05 Form 88(2)R - Return of an Allotment of Shares 24/10/05 Form 88(2)R - Return of an Allotment of Shares 24/10/05 Form 88(2)R - Return of an Allotment of Shares 24/10/05 Form 88(2)R - Return of an Allotment of Shares 24/10/05 Form 88(2)R - Return of an Allotment of Shares 11/10/05 Form 169 - Return by a Company Purchasing its Own Shares 11/10/05 Form 169 - Return by a Company Purchasing its Own Shares 11/10/05 Form 169 - Return by a Company Purchasing its Own Shares 11/10/05 Form 169 - Return by a Company Purchasing its Own Shares 14/09/05 Form 169 - Return by a Company Purchasing its Own Shares 14/09/05 Form 169 - Return by a Company Purchasing its Own Shares 14/09/05 Form 169 - Return by a Company Purchasing its Own Shares 22/08/05 Interim Accounts made up to 30/06/05 09/08/05 Form 88(2)R - Return of an Allotment of Shares 02/08/05 Form 169 - Return by a Company Purchasing its Own Shares 02/08/05 Form 169 - Return by a Company Purchasing its Own Shares 02/08/05 Form 169 - Return by a Company Purchasing its Own Shares 20/07/05 Form 88(2)R - Return of an Allotment of Shares 20/07/05 Form 88(2)R - Return of an Allotment of Shares 08/07/05 Form 169 - Return by a Company Purchasing its Own Shares 08/07/05 Form 169 - Return by a Company Purchasing its Own Shares 08/07/05 Form 169 - Return by a Company Purchasing its Own Shares 08/07/05 Form 169 - Return by a Company Purchasing its Own Shares 08/07/05 Form 169 - Return by a Company Purchasing its Own Shares 30/06/05 Form 88(2)R - Return of an Allotment of Shares 09/06/05 Form 363s - Return made up to 15/05/05 06/06/05 Form 88(2)R - Return of an Allotment of Shares 06/06/05 Form 88(2)R - Return of an Allotment of Shares 06/06/05 Form 88(2)R - Return of an Allotment of Shares 06/06/05 Form 88(2)R - Return of an Allotment of Shares 06/06/05 Form 88(2)R - Return of an Allotment of Shares 06/06/05 Form 88(2)R - Return of an Allotment of Shares 06/06/05 Form 88(2)R - Return of an Allotment of Shares 06/06/05 Form 88(2)R - Return of an Allotment of Shares 06/06/05 Form 88(2)R - Return of an Allotment of Shares 06/06/05 Form 88(2)R - Return of an Allotment of Shares 06/06/05 Form 88(2)R - Return of an Allotment of Shares 06/06/05 Form 88(2)R - Return of an Allotment of Shares 06/06/05 Form 88(2)R - Return of an Allotment of Shares 01/06/05 Group of Companies' Accounts made up to 31/12/04 12/05/05 Resolution to disapply pre-emption rights, to give authority to allot shares and to ratify financial assistance for the acquisition of shares 29/04/05 Form 169 - Return by a Company Purchasing its Own Shares 21/04/05 Form 288a - Director Appointed 31/03/05 Form 169 - Return by a Company Purchasing its Own Shares 31/03/05 Form 169 - Return by a Company Purchasing its Own Shares 31/03/05 Form 169 - Return by a Company Purchasing its Own Shares 10/03/05 Form 288a - Director Appointed 02/03/05 Form 169 - Return by a Company Purchasing its Own Shares 02/03/05 Form 169 - Return by a Company Purchasing its Own Shares 01/03/05 Form 169 - Return by a Company Purchasing its Own Shares 01/03/05 Form 169 - Return by a Company Purchasing its Own Shares All of the documents above are available for download from the Companies House website at www.companieshouse.gov.uk, or can be obtained from Companies House, Crown Way, Maindy, Cardiff, CF14 3UZ. 3. Documents submitted to the FSA All the documents below were submitted to the FSA on or around the dates indicated. Date Document 16/03/06 Notice of AGM 2006 16/03/06 Annual Report and Form 20-F Information 2005 16/03/06 Annual Review 2005 16/03/06 Summary CR Report 2005 04/05/05 Resolutions after AGM 2005 17/03/05 Notice of AGM 2005 17/03/05 Annual Report and Form 20-F Information 2004 17/03/05 Annual Review 2004 17/03/05 Summary CR Report 2004 Documents submitted to the FSA can be viewed at the Document Viewing Facility situated at The Financial Services Authority, 25 The North Colonnade, Canary Wharf, London, E14 5HS. The Notices of AGM, Annual Reports and Form 20-F Information, Annual Reviews and Summary CR Reports are also available via the Investors section of our website, www.astrazeneca.com. 4. Documents lodged with the Securities and Exchange Commission The documents listed below were filed with the SEC on or around the dates indicated. Date Document 23/03/06 Annual Reports 14/03/06 Quarterly Reports 14/03/06 Quarterly Reports 10/03/06 Quarterly Reports 10/02/06 Insider Trading 09/02/06 Quarterly Reports 06/02/06 Quarterly Reports 06/01/06 Quarterly Reports 02/12/05 Quarterly Reports 08/11/05 Quarterly Reports 05/10/05 Quarterly Reports 09/09/05 Quarterly Reports 05/08/05 Quarterly Reports 05/07/05 Quarterly Reports 29/06/05 Annual Reports 06/06/05 Quarterly Reports 10/05/05 Registration Statements 06/05/05 Quarterly Reports 21/03/05 Annual Reports 24/03/05 Quarterly Reports All of the documents above are available for viewing on the Investor section of our website, www.astrazeneca.com. 5. Further Information Further information about AstraZeneca PLC can be found at our website, www.astrazeneca.com. This information is provided by RNS The company news service from the London Stock Exchange

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