Update re Equity Issuance, Secondary Sale and the board

September 9, 2024 - 4basebio PLC (AIM: 4BB) ("4basebio" or the "Company"), which develops and commercialises the large scale manufacture of synthetic DNA as well as nanoparticle delivery solutions, today announces further details in relation to the investment by (i) Fort Aggregator LP, acting by its general partner, Elevage Medical Technologies ("Elevage"), a Patient Square Capital platform and (ii) Prudential Assurance Company Limited acting by its investment manager M&G Investment Management Limited ("M&G"), initially announced on 29 July 2024. The investment is for a combined amount of £40.0 million in the Company through an issuance (the "Issuance") of ordinary shares of €1 each ("Ordinary Shares") at an issue price of 1,500 pence per Ordinary Share (the "Issue Price") and the purchase of Ordinary Shares from entities belonging to the Deutsche Balaton Group and certain management and directors of the Company ("Sale Shares"), at a purchase price per Sale Share equal to the Issue Price for an aggregate purchase price of approximately £29.4 million (the "Secondary Sale") (the "Transaction").

Equity Issuance

As previously disclosed, the 2,666,667 new Ordinary Shares to be issued pursuant to the Issuance (the "Issuance Shares") will represent approximately 20.8 per cent. of the existing issued ordinary share capital of the Company and 17.2 per cent. of the enlarged issued ordinary share capital of the Company following completion of the Issuance (on the basis of the Company's issued share capital as at the date of this announcement).

Secondary Sale

Pursuant to the Secondary Sale, Elevage and M&G have between them now agreed to purchase 1,961,074 Sale Shares at a purchase price per Sale Share equal to the Issue Price. As a result of the Issuance and the Secondary Sale, at completion Elevage and M&G will together hold 4,627,741 Ordinary Shares representing 29.9% of the Company's issued Ordinary Shares following the Issuance.

The vendors of the Ordinary Shares and their resultant holdings on completion of the Secondary Sale are as follows:

* The majority of the shareholding of Joseph Fernández is held by Fernández family trusts.

Final documentation and board update

The final documentation referred to in the announcement of 29 July 2024 has now been entered into and the Issuance remains interconditional with the Secondary Sale. The Issuance and the Secondary Sale are conditional on clearance under the National Security and Investment Act 2021 and receipt of such clearance is expected later in 2024. In addition, on 7 September 2024, the Company entered into a new relationship agreement with Elevage, M&G, 2Invest AG (on behalf of the Deutsche Balaton Group) and Cairn Financial Advisers LLP and a deed of termination in respect of its existing relationship agreement, which was entered into at the time of its admission to AIM, both with effect from admission of the Issuance Shares to trading on AIM ("Admission").

The terms of the new Relationship Agreement, amongst other matters, set out certain board appointment rights in favour of (i) Elevage and M&G and (ii) 2Invest (acting on behalf of the Deutsche Balaton Group), conditional upon Admission. However, John Marotta has recently assumed the role of CEO of another company and therefore will not be joining the board.

As 2Invest AG, together with other members of the Deutsche Balaton Group, are significant shareholders of the Company and as 2Invest AG is a party to the deed of termination and the new relationship agreement, entering into these agreements (the "RP Transaction") constitutes a related party transaction pursuant to Rule 13 of the AIM Rules for Companies. The directors of the Company, having consulted with the Company's Nominated Adviser, Cairn Financial Advisers LLP, consider the terms of the RP Transaction to be fair and reasonable insofar as the Company's shareholders are concerned.

The Issuance Shares, when issued, will be fully paid and will rank pari passu in all respects with the existing Ordinary Shares.

About Elevage Medical Technologies

Elevage Medical Technologies is a platform established by Patient Square Capital and is dedicated to supporting medical technology companies that can meaningfully improve health outcomes and quality of life for patients. Elevage provides capital along with deep technical, regulatory, and operational expertise to companies ranging from advanced clinical development to commercial acceleration stage. Elevage supports rapidly growing, highly differentiated companies with paradigm shifting technologies and strives to help build industry leading medical technologies. To learn more about Elevage, please visit www.elevagemedical.com.

About M&G Investments

The capital for this deal has been provided by M&G's Crossover strategy (Crossover) on behalf of the £129 billion Prudential With Profits Fund. Crossover is a global strategy led by M&G's public equity investment division which provides patient growth equity to high-quality, fast-growing companies.

M&G Investments is part of M&G plc, a savings and investment business which was formed in 2017 through the merger of Prudential plc's UK and Europe savings and insurance operation and M&G, its wholly owned international investment manager. M&G plc listed as an independent company on the London Stock Exchange in October 2019 and has £343.5 billion of assets under management (as at 31 December 2023). M&G plc has customers in the UK, Europe, the Americas and Asia, including individual savers and investors, life insurance policy holders and pension scheme members. For nearly nine decades M&G Investments has been helping its customers to prosper by putting investments to work, which in turn creates jobs, homes and vital infrastructure in the real economy. Its investment solutions span equities, fixed income, multi asset, cash, private debt, infrastructure and real estate.

M&G recognises the importance of responsible investing and is a signatory to the United Nations Principles for Responsible Investment (UNPRI) and is a member of the Climate Bonds Initiative Partners Programme. M&G plc has committed to achieve net zero carbon emissions on its total book of assets under management and administration by 2050 and committed to reduce operational carbon emissions as a corporate entity to net zero by 2030. For more information, please visit: https://global.mandg.com/.

Additional information

RBC is acting as sole placement agent to the Company in connection with the Transaction and will not regard any other person as a client in relation to the Transaction. RBC will not be responsible to any other person for providing the protections afforded to its clients or for advising any person in relation to the Transaction or any arrangement referred to in this document.