Addex Raises $10.0 Million in Equity Financing

Ad Hoc Announcement Pursuant to Art. 53 LR 

Geneva, Switzerland, December 17, 2021 Addex Therapeutics Ltd (SIX: ADXN and Nasdaq: ADXN), a clinical-stage pharmaceutical company pioneering allosteric modulation-based drug discovery and development, today announced that it has entered into a definitive agreement with Armistice Capital LLC, a healthcare-focused institutional investor, pursuant to which the Company agreed to sell 3,752,202 shares in the form of 625,367 American Depositary Shares (“ADSs”) at a gross purchase price of $6.50 per ADS, which is equivalent to CHF 1.00 per share. Each ADS represents six shares. Additionally, Addex has agreed to issue to Armistice Capital unregistered warrants to purchase up to 9,230,772 shares in the form of 1,538,462 ADSs (the “Unregistered Warrants”), as well as unregistered pre-funded warrants to purchase up to 5,478,570 shares in the form of 913,095 ADSs (the “Unregistered Pre-Funded Warrants” and together with the Unregistered Warrants, the “Warrants”) in a concurrent private placement. The Unregistered Warrants have an exercise price of $6.50 per ADS, will become exercisable in 60 days after their date of issuance and will expire six years from their date of issuance. The Unregistered Pre-Funded Warrants have been funded to the amount of $6.49 with $0.01 payable on exercise.

The gross proceeds to Addex, before deducting placement agent fees and other offering expenses, will be $10.0 million. Addex intends to use the net proceeds from this offering to advance its clinical and preclinical pipeline.

The closing of the offering is expected to occur on or about December 21, 2021, subject to the satisfaction of customary closing conditions.

H.C. Wainwright & Co. is acting as the exclusive placement agent for the offering.

The shares (but not the Warrants or the shares underlying the Warrants) are being offered by Addex pursuant to a "shelf" registration statement on Form F-3 that was originally filed on April 7, 2021 and declared effective by the Securities and Exchange Commission (“SEC”) on April 13, 2021 and the base prospectus contained therein (File No. 333-255089). The offering of the shares is being made only by means of a prospectus supplement that forms a part of the registration statement. Electronic copies of the prospectus supplement and accompanying base prospectus may be obtained, when available, on the SEC's website at or by contacting H.C. Wainwright & Co., LLC at 430 Park Avenue, 3rd Floor, New York, NY 10022, by phone at 646-975-6996 or e-mail at


The Warrants and shares underlying the Warrants are being offered in a private placement under Section 4(a)(2) of the Securities Act of 1933, as amended (the “Act”), and Regulation D promulgated thereunder and, along with the shares underlying the Warrants, have not been registered under the Act, or applicable state securities laws. Accordingly, the Warrants and underlying shares may not be offered or sold in the United States except pursuant to an effective registration statement or an applicable exemption from the registration requirements of the Act and such applicable state securities laws. 

This press release shall not constitute an offer to sell or a solicitation of an offer to buy these securities, nor shall there be any sale of these securities in any state or other jurisdiction in which such offer, solicitation or sale would be unlawful prior to the registration or qualification under the securities laws of any such state or other jurisdiction.

About Addex Therapeutics:

Addex Therapeutics is a clinical-stage pharmaceutical company focused on the development and commercialization of an emerging class of novel orally available small molecule drugs known as allosteric modulators for neurological disorders. Allosteric modulators offer several potential advantages over conventional non-allosteric molecules and may offer an improved therapeutic approach to conventional "orthosteric" small molecule or biological drugs. Addex's allosteric modulator drug discovery platform targets receptors and other proteins that are recognized as essential for therapeutic intervention. Addex's lead drug candidate, dipraglurant (mGlu5 negative allosteric modulator or NAM), is in a pivotal registration clinical trial for Parkinson’s disease levodopa induced dyskinesia (PD-LID) and has entered a Phase 2 clinical study for the treatment of blepharospasm, a form of dystonia. Addex's third clinical program, ADX71149 (mGlu2 positive allosteric modulator or PAM), developed in collaboration with Janssen Pharmaceuticals, Inc., is in a Phase 2a proof of concept clinical trial for the treatment of epilepsy. Indivior PLC has licensed Addex’s GABAB PAM program for the development of drug candidates with a focus in substance use disorder. Preclinical programs include GABAB PAM for CMT1A, mGlu7 NAM for PTSD, mGlu2 NAM for mild neurocognitive disorders, mGlu4 PAM for Parkinson’s disease and mGlu3 PAM for neurodegenerative disorders. Addex shares are listed on the SIX Swiss Exchange and American Depositary Shares representing its shares are listed on the NASDAQ Capital Market, and trade under the ticker symbol "ADXN" on each exchange. 

Press Contacts:

Tim Dyer

Chief Executive Officer

Telephone: +41 22 884 15 55         

Mike Sinclair

Partner, Halsin Partners

+44 (0)20 7318 2955

James Carbonara

Hayden IR


Forward Looking Statements:

This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, as amended, including in respect of the anticipated closing of the offering described above. The words “may,” “will,” “could,” “would,” “should,” “expect,” “plan,” “anticipate,” “intend,” “believe,” “estimate,” “predict,” “project,” “potential,” “continue,” “target” and similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. Any forward-looking statements in this press release, such as the expected closing date and use of proceeds from the offering, are based on management's current expectations and beliefs and are subject to a number of risks, uncertainties and important factors that may cause actual events or results to differ materially from those expressed or implied by any forward-looking statements contained in this press release, including, without limitation, uncertainties related to market conditions and the satisfaction of customary closing conditions related to the offering. These and other risks and uncertainties are described in greater detail in the section entitled “Risk Factors” in Addex Therapeutics’ Annual Report on Form 20-F for the year ended December 31, 2020, as filed with the SEC on March 11, 2021, the final prospectus supplement and accompanying prospectus and other filings that Addex Therapeutics may make with the SEC in the future. Any forward-looking statements contained in this press release represent Addex Therapeutics’ views only as of the date hereof and should not be relied upon as representing its views as of any subsequent date. Addex Therapeutics explicitly disclaims any obligation to update any forward-looking statements.