4basebio PLC
("4basebio" or the "Company")
Director Dealing
Cambridge, UK, 30 September 2025 – 4basebio PLC (AIM: 4BB), an innovation-led provider of novel synthetic DNA products and a non-viral, thermostable nucleic acid delivery platform, announces that it was informed by Dr. Heikki Lanckriet, CEO of the Company, that on 29 September 2025 he made the following purchase in ordinary shares in the capital of the Company through the market.
Further details are set out in the Notification of Dealing Form below.
Director / PCA
Number of Ordinary Shares Acquired
Purchase Price (Aggregated) (p)
Shareholding Following Acquisition
Shareholding Following Acquisition as a Percentage of Issued Share Capital
Heikki Lanckriet
2,000
749
1,119,688
7.21%
The 2,000 additional shares purchased represent approximately 0.01 per cent. of the Company's issued share capital. The issued share capital of the Company comprises 15,538,518 ordinary shares.
This announcement contains inside information for the purposes of Article 7 of EU Regulation 596/2014 as amended by regulation 11 of the market abuse (amendment) (EU Exit) regulations 2019/310.
For further enquiries, please contact:
4basebio PLC Dr. Heikki Lanckriet, CEO
+44 (0) 1223 967 943
Nominated Adviser Cairn Financial Advisers LLP Jo Turner / Sandy Jamieson / Ed Downes
+44 (0) 20 7213 0880
Joint Broker RBC Capital Markets Kathryn Deegan / Matthew Coakes
Notes to Editors
About 4basebio
4basebio (AIM: 4BB) is an innovation driven life biotechnology company focused on accelerating the development of advanced therapy medicinal products (ATMPs) through its high-performance synthetic DNA products and non-viral, cell targeting nucleic acid delivery platform. The Company’s objective is to become a market leader in the manufacture and supply of high-quality synthetic DNA products for research, therapeutic and pharmacological use as well as development of target specific non-viral vectors for the efficient delivery of payloads in patients.
Forward-looking statements
This announcement may contain certain statements about the future outlook for 4basebio. Although the directors believe their expectations are based on reasonable assumptions, any statements about future outlook may be influenced by factors that could cause actual outcomes and results to be materially different.
Notification and public disclosure of transactions by persons discharging managerial responsibilities and persons closely associated with them
1
Details of the persons discharging managerial responsibilities / person closely associated
a)
Name
Heikki Lanckriet
2
Reason for the notification
a)
Position/Status
Chief Executive Officer
b)
Initial notification/ Amendment
Initial notification
3
Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor
a)
Name
4basebio plc
b)
LEI
213800E2DX9EAIUNCB30
4
Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been conducted
a)
Description of the financialinstrument, type ofinstrumentIdentification code
