Net Asset Value(s)

THE BIOTECH GROWTH TRUST PLC

NET ASSET VALUE

The estimated un-audited net asset value, calculated in accordance with the guidelines of the Association of Investment Companies, for The Biotech Growth Trust PLC at the close of business on 10 June 2015 was 852.39p (ex & cum income).

The Company holds 6,224,316 shares in treasury.  In line with the Company’s published policy any re-sale of treasury shares will only take place at a premium to the prevailing net asset value per share at the time of issue and therefore the shares held in treasury do not give rise to a potential dilution to net asset value per share.

For and on behalf of the Board

Frostrow Capital LLP

Secretary

11 June 2015