4D pharma plc (AIM: DDDD), a pharmaceutical company leading the development of Live Biotherapeutic products (LBPs) - a novel class of drug derived from the microbiome, today announces the appointment of Paul Maier as Non-Executive Director of the Board. Mr Maier will also be a member of 4D's Audit and Risk Committee and will serve as the Company’s “audit committee financial expert” under SEC and Nasdaq rules.

“With over 25 years of extensive senior operational, international and financial management experience in the pharmaceutical and biotechnology industry, Paul will be able to provide 4D pharma with invaluable insights as we continue to execute across our business both clinically and operationally,” said Duncan Peyton, Chief Executive Officer of 4D pharma. “Paul’s strong track record will support our Board with additional perspective and expertise.”

“I am excited to join 4D pharma’s Board and support its goals to establish a larger global presence while working to bring its differentiated approach and pipeline of Live Biotherapeutics to patients in need,” said Paul Maier, Non-Executive Director of 4D pharma. “I look forward to working with 4D and offering my experiences in transactional and operational strategy as the company continues to grow, catalyzed by 4D’s upcoming NASDAQ listing.”

Mr. Maier has over 25 years of investor and public relations, operational, regulatory, and finance expertise in the healthcare industry. Mr. Maier was previously the Chief Financial Officer of Sequenom Inc., where he was responsible for raising over $360 million in equity and debt financings, expanding institutional sell side research analyst coverage, as well as overseeing and establishing internal financial infrastructure. Previously, he was Senior Vice President and Chief Financial Officer of Ligand Pharmaceuticals (NASDAQ: LGND) where he helped build Ligand from a venture stage company to a commercial, integrated biopharmaceutical organization, raising over $1 billion in equity and debt financings including a successful IPO, and helped negotiate multiple R&D and commercial partnerships and transactions. He has also acted as an independent financial consultant to life sciences companies. Mr. Maier is currently a Board member of Eton Pharmaceuticals, Inc, Biological Dynamics and International Stem Cell Corporation (OTCQB: ISCO). He holds an MBA from Harvard University and a BS in Business Logistics from the Pennsylvania State University.

Additional Disclosures Required under the AIM Rules for Companies

In accordance with Schedule 2(g) of the AIM Rules, Paul Victor Maier (aged 73) currently holds the following directorships: Eton Pharmaceuticals, Inc Biological Dynamics, Inc International Stem Cell Corp.

Previous directorships held in the past five years: Ritter Pharmaceuticals, Inc (Mar 2015 – May 2020) Apricus Biosciences, Inc (May 2012 – Jan 2019) Mabvax, Inc (June 2014 – July 2018)

Paul Maier does not currently hold any ordinary shares in the Company.

Save as set out above there are no further disclosures pursuant to Rule 17 or Schedule Two paragraph (g) of the AIM Rules for Companies in respect of the appointment of Paul Maier.

About 4D pharma

Founded in February 2014, 4D pharma is a world leader in the development of Live Biotherapeutics, a novel and emerging class of drugs, defined by the FDA as biological products that contain a live organism, such as a bacterium, that is applicable to the prevention, treatment or cure of a disease. 4D has developed a proprietary platform, MicroRx®, that rationally identifies Live Biotherapeutics based on a deep understanding of function and mechanism.

4D pharma's Live Biotherapeutic products (LBPs) are orally delivered single strains of bacteria that are naturally found in the healthy human gut. The Company has six clinical programs, namely a Phase I/II study of MRx0518 in combination with KEYTRUDA (pembrolizumab) in solid tumors, a Phase I study of MRx0518 in a neoadjuvant setting for patients with solid tumors, a Phase I study of MRx0518 in patients with pancreatic cancer, a Phase I/II study of MRx-4DP0004 in asthma (NCT03851250), a Phase II study of MRx-4DP0004 in patients hospitalized with COVID-19 (NCT04363372), and Blautix® in Irritable Bowel Syndrome (IBS) (NCT03721107) which has completed a successful Phase II trial. Preclinical-stage programs include candidates for CNS disease such as Parkinson's disease and other neurodegenerative conditions. The Company has a research collaboration with MSD, a tradename of Merck & Co., Inc., Kenilworth, NJ, USA, to discover and develop Live Biotherapeutics for vaccines.

For more information, refer to www.4dpharmaplc.com.

Forward-Looking Statements

This press release contains "forward-looking statements." All statements other than statements of historical fact contained in this announcement, including without limitation statements regarding timing of the clinical trial are forward-looking statements within the meaning of Section 27A of the United States Securities Act of 1933, as amended (the "Securities Act"), and Section 21E of the United States Securities Exchange Act of 1934, as amended (the "Exchange Act"). Forward-looking statements are often identified by the words "believe," "expect," "anticipate," "plan," "intend," "foresee," "should," "would," "could," "may," "estimate," "outlook" and similar expressions, including the negative thereof. The absence of these words, however, does not mean that the statements are not forward-looking. These forward-looking statements are based on the Company's current expectations, beliefs and assumptions concerning future developments and business conditions and their potential effect on the Company. While management believes that these forward-looking statements are reasonable as and when made, there can be no assurance that future developments affecting the Company will be those that it anticipates.

All of the Company's forward-looking statements involve known and unknown risks and uncertainties, some of which are significant or beyond its control, and assumptions that could cause actual results to differ materially from the Company's historical experience and its present expectations or projections. The foregoing factors and the other risks and uncertainties that affect the Company's business, including the risks of delays in the commencement of the clinical trial and those additional risks and uncertainties described the documents filed by the Company with the US Securities and Exchange Commission (“SEC”), should be carefully considered. The Company wishes to caution you not to place undue reliance on any forward-looking statements, which speak only as of the date hereof. The Company undertakes no obligation to publicly update or revise any of its forward-looking statements after the date they are made, whether as a result of new information, future events or otherwise, except to the extent required by law.

Additional Information about the Transaction and Where to Find it

This press release is being made in respect of a proposed business combination involving 4D and Longevity. Following the announcement of the proposed business combination, 4D filed a registration statement on Form F-4 (the “Registration Statement”) with the SEC which was declared effective on February 25, 2021. This press release does not constitute an offer to sell or the solicitation of an offer to buy or subscribe for any securities or a solicitation of any vote or approval nor shall there be any sale, issuance or transfer of securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. The Registration Statement includes a prospectus with respect to 4D’s ordinary shares and ADSs to be issued in the proposed transaction and a proxy statement of Longevity in connection with the merger. The proxy statement/prospectus has been mailed to the Longevity shareholders on or about February 26, 2021. 4D and Longevity also plan to file other documents with the SEC regarding the proposed transaction.

This press release is not a substitute for any prospectus, proxy statement or any other document that 4D or Longevity may file with the SEC in connection with the proposed transaction. Investors and security holders are urged to read the Registration Statement and, when they become available, any other relevant documents that will be filed with the SEC carefully and in their entirety because they will contain important information about the proposed transaction.

You may obtain copies of all documents filed with the SEC regarding this transaction, free of charge, at the SEC’s website (www.sec.gov). In addition, investors and security holders will be able to obtain free copies of the Registration Statement and other documents filed with the SEC without charge, at the SEC’s website (www.sec.gov) or by calling +1-800-SEC-0330.

Participants in the Solicitation

Longevity and its directors and executive officers and other persons may be deemed to be participants in the solicitation of proxies from Longevity’s shareholders with respect to the proposed transaction. Information regarding Longevity’s directors and executive officers is available in its annual report on Form 10-K for the fiscal year ended February 29, 2020, filed with the SEC on April 30, 2020. Additional information regarding the participants in the proxy solicitation relating to the proposed transaction and a description of their direct and indirect interests is contained in the Registration Statement.

4D and its directors and executive officers may also be deemed to be participants in the solicitation of proxies from the shareholders of Longevity in connection with the proposed transaction. A list of the names of such directors and executive officers and information regarding their interests in the proposed transaction is included in the Registration Statement.

4D pharma Investor Relations: ir@4dpharmaplc.com

Stern Investor Relations, Inc. Julie Seidel +1-212-362-1200 Julie.seidel@sternir.com

N+1 Singer - Nominated Adviser and Joint Broker +44 (0)20 7496 3000 Philip Davies / Iqra Amin / James Fischer (Corporate Finance) Tom Salvesen (Corporate Broking)

Bryan Garnier & Co. Limited - Joint Broker +44 (0)20 7332 2500 Dominic Wilson / Phil Walker

Image Box Communications Neil Hunter / Michelle Boxall +44 (0)20 8943 4685 neil@ibcomms.agency / michelle@ibcomms.agency