Biophytis Changes Ratio Under ADR Program To One ADS Representing 100 Shares From One ADS Representing 10 Shares Effective March 30

Biophytis SA ((NasdaqCM:BPTS, PARIS:ALBPS) (the “Company” or “Biophytis”), a clinical-stage biotechnology company focused on the development of therapeutics that slow the degenerative processes associated with aging, including severe respiratory failure in patients suffering from COVID-19, today annouces that it will change the ratio of its American Depositary Shares (the “ADSs”) to Biophytis ordinary shares (the “Shares”) from one ADS representing 10 Shares, to one ADS representing 100 Shares (the “Ratio Change”). The effective date of the Ratio Change (the “Effective Date”) is expected to be March 30th, 2023.