For immediate release 24 April 2015 THE BIOTECH GROWTH TRUST PLC (the "Company") MARKET PURCHASE OF COMPANY'S OWN SHARESNotification is given, pursuant to the authority granted at the Annual GeneralMeeting of the Company held on 10 July 2014 to make market purchases of theCompany's own shares up to an aggregate maximum of 10,170,676 that a markettotal of 31,000 Ordinary shares of 25p each in the capital of the Company werepurchased today by the Company at a price of 809.54p per share. These shareswill be held in treasury.Following this transaction and in conformity with the provisions of theTransparency Directive, the Company hereby notifies the market that theresultant number of Ordinary shares held by the Company in treasury is5,353,328 and the total number of Ordinary shares that the Company has in issueis 68,886,347 so that the total number of voting rights in the Companyfollowing the repurchase is 63,533,019.The figure of 63,533,019 may be used by shareholders as the denominator for thecalculation by which they may determine if they are required to notify theirinterest in, or change to their interest in, the Company under the FCA'sDisclosure and Transparency Rules.For and on behalf ofFrostrow Capital LLPCompany SecretaryFor further information, please contact:Mark PopeFrostrow Capital LLPTel: 020 3 008 4913