The Biotech Growth Trust PLC – Compliance with Market Abuse Regulation

The Biotech Growth Trust PLC

(the «Company»)

Compliance with Market Abuse Regulation

1 May 2026

The Company confirms that:

a)all inside information which the Directors and Company may have had has been
notified to a Regulated Information Service («RIS»);

b)the Company’s net asset value per share is calculated and announced through a
RIS on a daily basis;

c)the Company has no reason to believe that there will be any material
difference between the net asset value per share as at close of business on
Tuesday, 31 March 2026, which was announced on Wednesday, 1 April 2026, and the
financial information to be published in the announcement of its results for the
year ended 31 March 2026.

The Company is, therefore, not prohibited from dealing in its own securities
during the closed period, as defined by the UK Market Abuse Regulation, which
will end on the date of the publication of its results for the year ended 31
March 2026, expected to be on or after Wednesday, 3 June 2026.

-ENDS-

For further information please contact:

Katherine Manson Frostrow Capital LLP – 0203 709 8734

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