^Idorsia will publish its Full Year 2023 and Q1 2024 Financial Reporting on Tuesday May 21, 2024, at 07:00 CEST. An investor conference call and webcast will be held to discuss the results on the same day. Date: Tuesday, May 21, 2024 Time: 14:00 CEST / 11:00 BST / 08:00 EDT The call will start with presentations by senior management, followed by a Q&A session. Dial-in procedure: 1) Participants are required to register in advance of the conference (link already open for registration) using the link provided below. Upon registration, each participant will be provided with participant dial in numbers, and a unique personal PIN. 2) In the 10 minutes prior to the call start time, participants will need to use the conference access information provided in the e-mail received at the point of registering. Participants may also use the Call Me feature instead of dialing the nearest dial in number. Online Registration: https://register.vevent.com/register/BI431f6c4637014f91bccc3da0d59c1adc Webcast: Participants should go to the Idorsia website www.idorsia.com (http://www.idorsia.com) 10-15 minutes before the conference is due to start. Replay: A replay of the investor webcast will be available through www.idorsia.com (http://www.idorsia.com) approximately 60 minutes after the call has ended. Kind regards, Andrew C. Weiss Head of Investor Relations and Corporate Communications °

Quelle: dpa-Afx