Oslo, Norway, 28 April 2026 - Oncoinvent ASA (ONCIN), will be holding its Annual General Meeting virtual on 20 May 2026 at 10:00 hours (CEST).

The notice and agenda of the annual general meeting is attached hereto, including further information on advance voting, power of attorney and physical participation. The notice will be sent to all registered shareholders, and the notice, the compensation report, the nomination committees recommendations and other documents referred to therein are made available on the Company's website: https://www.oncoinvent.com/investors/general-meetings/.

Oncoinvent ASA - Notice to AGM 2026.pdf

All shareholders are encouraged to exercise their shareholder rights, either through advance electronically voting through VPS Investor Services, by using the enclosed proxy form to provide proxy to the Chairman Gillies O'Bryan-Tear (or the person he appoints), or to attend the general meeting virtually.

Registration, advance vote or proxy for the Annual General Meeting can be registered through the company's website (https://www.oncoinvent.com/investors/general-meetings/) or VPS Investor Service (https://investor.vps.no/garm/auth/login) within 18 May 2026, 23:59 hours (CEST). Virtual participants also need to be logged in to the meeting before 10:00 hours (CEST) 20 May 2026. All shareholders will receive a reference number and a pin code required for registration through the company's website. Reference number and pin code will be received either by VPS Investor Service or by post depending on if the shareholder is registered as electronical user. We encourage all shareholders to register as electronical users in VPS.