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 3 June 2015 was 870.47p (ex & cum
income).

The Company holds 6,199,875 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

4 June 2015