When Astra AB and Zeneca PLC merged how were the shares split / merged?
Astra AB and Zeneca PLC shares were merged on 6th April 1999.
1 Astra share : 0.5045 AstraZeneca share
1 Zeneca share : 1 AstraZeneca share

What was the opening price of AstraZeneca PLC shares?
24.50 GBP

I still hold Astra AB shares. What course of action can I take?
View a letter to Astra AB shareholders - 6 kb
A legal representative, Peter Haglund, has been appointed to act on behalf of minority shareholders. He can be contacted at Advokatfirman Sodermark, Box 14055, SE 104 40 Stockholm, Sweden, telephone +46 8 670 57 50 and fax +46 8 663 67 20.

When did AstraZeneca demerge its agrochemical business?
AstraZeneca demerged its agrochemical business on 13 November 2000.

I am a UK shareholder. How do I allocate my cost basis of AstraZeneca shares to my Syngenta distribution?
View UK cost basis information - 546 kb

I am a US shareholder. How do I allocate my cost basis of AstraZeneca shares to my Syngenta distribution?
View US cost basis information - 18 kb

What was the value of Zeneca shares when it demerged from ICI?
Shares in Zeneca Group PLC acquired on demerger from ICI will be treated as having a base cost for capital gains tax purposes ascertained by reference to the values of Zeneca and ICI shares on 1 June 1993 calculated in accordance with the provisions of Section 272 of the Taxation of Chargeable gains Act 1992. The base cost of any holding of ICI Shares on that date will be adjusted on the same basis.

The relevant prices on The London Stock Exchange on 1 June 1993 were:
Zeneca - 625.75p and ICI - 631.75p

The base cost of the pre-merger ICI Shares will therefore be split between the post-demerger Zeneca and ICI Shares in the proportion:
Zeneca -- 0.49761 and ICI -- 0.50239