Certain Common Shares of AC Immune SA are subject to a Lock-Up Agreement Ending on 14-FEB-2024. These Common Shares will be under lockup for 61 days starting from 15-DEC-2023 to 14-FEB-2024.

Details:
Each of the Company?s directors and certain of its officers have agreed that, for a period of 60-days after the date of this prospectus supplement and without the prior written consent of Jefferies LLC and Leerink Partners LLC, he or she will not (i) sell or offer to sell any common shares or related securities currently or hereafter owned either of record or beneficially (as defined in Rule 13d-3 under the Exchange Act) by such person, or such person?s family members (which shall mean the spouse of such person, an immediate family member (as defined in Rule 16a-1(e) under the Exchange Act) of such person or an immediate family member of such person?s spouse, in each case living in such person?s household or whose principal residence is such person?s household (regardless of whether such spouse or family member may at the time be living elsewhere due to educational activities, health care treatment, military service, temporary internship or employment or into any swap, hedge or similar arrangement or agreement that transfers, in whole or in part, the economic risk of ownership of common shares or related securities, regardless of whether any such transaction is to be settled in securities, in cash or otherwise; (iii) make any demand for, or exercise any right with respect to, the registration under the Securities Act of the offer and sale of any common shares or related securities, or cause to be filed a registration statement, prospectus or prospectus supplement (or an amendment or supplement thereto) with respect to any such registration; or (iv) publicly announce any intention to do any of the foregoing.