Impax Asset Management Regulatory News (IPX)

23 March 2012

Impax Asset Management Group plc ("Impax" or the "Company")

Share buyback

The Company announces that on 23 March it purchased 500,000 ordinary shares of 1p each in the Company at a price of 50 pence per share, for transfer into Treasury. 

Following the share buyback the Company's issued ordinary share capital consists of 115,582,431 ordinary shares of which a total of 1,949,000 ordinary shares are held in Treasury. Therefore the total number of ordinary shares with voting rights in Impax is 113,633,431 ordinary shares.

The above figure of 113,633,431 may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, Impax under the FSA's Disclosure and Transparency Rules.

Enquiries:

Impax Asset Management Group plc 020 7434 1122

Ian Simm, Chief Executive

Espirito Santo Investment Bank 020 7456 9191

John Riddell

James Bromhead