Ad hoc announcement pursuant to Art. 53 LR NOT FOR RELEASE, PUBLICATION, DISTRIBUTION IN OR INTO THE UNITED STATES, ITALY, CANADA, AUSTRALIA, JAPAN OR ANY OTHER JURISDICTION IN WHICH SUCH RELEASE, PUBLICATION OR DISTRIBUTION WOULD BE PROHIBITED BY APPLICABLE LAWS. Idorsia successfully completes the offering of 16.4 million new and treasury shares – upsized from 15 million shares – through an accelerated bookbuilding process with gross proceeds of CHF 65.6 million Allschwil, Switzerland – October 10, 2025Ido ...