Holding(s) in Company

Synairgen plc
18 March 2005


Synairgen plc ('Synairgen' or the 'Company')


The Company received notification on 17 March 2005 that Lansdowne Partners
Limited Partnership has, on behalf of client funds that it manages, an interest
in 1,950,000 ordinary shares in Synairgen ('Ordinary Shares'), which represent
approximately 8.99% of the Company's issued share capital.




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