Idorsia announces changes to Idorsia Executive Committee and Board of Directors

Ad hoc announcement pursuant to Art. 53 LR

• Jean-Paul Clozel to retire as CEO and stand for election as Chairman of the Board of Directors
• Mathieu Simon to stand for re-election to the Board – taking on the role of Vice-Chairman and Lead Independent Director
• André C. Muller, current CFO of Idorsia, to take over the role of CEO as of June 13, 2024

Allschwil, Switzerland – May 21, 2024
Idorsia Ltd (SIX: IDIA) today announced changes to the Idorsia Executive Committee (IEC) and will propose changes in membership of the Board of Directors at the upcoming Annual General Meeting of shareholders (AGM), to be held on June 13, 2024.

Jean-Paul Clozel, 69, has decided to retire from his role as Chief Executive Officer (CEO) of Idorsia and stand for election as Chairman of the Board of Directors at this year’s AGM. Jean-Paul has served as CEO of Idorsia since its foundation – the result of demerging the drug discovery and early clinical pipeline of Actelion, as part of the USD 30 billion acquisition. Jean-Paul had previously co-founded Actelion in 1997 and went on to lead the company as CEO in 2000 when the company became publicly traded.

Jean-Paul Clozel, MD and CEO of Idorsia, commented:
“It has been an absolute privilege to serve as CEO of Actelion and Idorsia for the past 24 years. I can think of no greater endeavor than discovering new medicines that help patients lead better lives. I’ve been very fortunate to work alongside some amazing people from all disciplines and together, we have achieved more than I could have ever imagined when I started out in my research career. The time is right for me to retire from the day-to-day running of Idorsia and hand the reins over to a younger generation to lead the company through the next phase of growth. Having devoted so much energy to Idorsia, I want to stay engaged and support the company to realize its potential, hence me standing for election as Chairman. I’m confident that Mathieu and I will form a strong partnership in leading the Board. I will also be able to devote more time to science which has always been my passion.”

From June 13, 2024, André C. Muller will take on the position of CEO. André has served as the Chief Financial Officer (CFO) of Idorsia since its foundation and has taken the lead in the company’s Business Development initiatives in recent years. Before establishing Idorsia, André served as CFO of Actelion from 2013, leading the company through its acquisition and playing a crucial role in the demerger process.