ObsEva Announces Progress Towards its Plans to Consolidate Operations in Switzerland: Delisting of OBSV from The Nasdaq Stock Market effective March 23, 2023

Ad hoc announcement pursuant to Art. 53 LR of the SIX Swiss Exchange

GENEVA, Switzerland – March 15, 2023 – ObsEva SA (NASDAQ: OBSV; SIX: OBSN), a biopharmaceutical company developing and commercializing novel therapies for women’s health, today announced that it received a notification letter from The Nasdaq Stock Market LLC (“Nasdaq”) on March 14, 2023, advising the Company that its securities are scheduled for delisting from The Nasdaq Capital Market and will be suspended at the opening of U.S. business on March 23, 2023. A Form 25-NSE will be filed with the Securities and Exchange Commission (the “SEC”), which will remove the Company’s securities from listing and registration on Nasdaq.