(Article 14, paragraph 1 of the law of 2 May 2007 on the disclosure of major holdings)
Louvain-la-Neuve, Belgium, January 21, 2026 06:00 PM
Summary of the notification
IBA (Ion Beam Applications), the world leader in particle accelerator technology, announces that it has to issue a transparency notification, in accordance with Article 14, al. 1 of the Transparency Law of May 2, 2007 on disclosure of major holdings, further to the notification received on January 13, 2026.
In its notification, Vallgesa Limited indicated that following an acquisition or disposal of securities or voting rights, Vallcara Limited, a controlled undertaking of Vallgesa Limited, exceeded the 5% threshold on 28/11/2025.
Content of the notification
Reason for the notification: Acquisition or disposal of voting securities or voting rights
Notification by: A parent undertaking or a controlling person
Persons subject to the notification requirement:
Date on which the threshold is crossed: 11-28-2025
Threshold crossed (in %) : 5%
Denominator : 40.514.619
Notified details: (extract of the received notification form)
Full chain of controlled undertakings through which the holding is effectively held
Vallcara Limited is 100% held by Vallgesa Limited. Vallgesa Limited is not a controlled entity.
Additional information
Vallcara Limited has reached the 5% notification threshold due to acquisition of shares.
About IBA
IBA (Ion Beam Applications S.A.) is the world leader in particle accelerator technology. The company is the leading supplier of equipment and services in the fields of proton therapy, considered to be one of the most advanced forms of radiation therapy available today, industrial sterilization, radiopharmaceuticals, and dosimetry. The company, based in Louvain-la-Neuve, Belgium, employs approximately 2,000 people worldwide. IBA is a certified B Corporation (B Corp) meeting the highest standards of verified social and environmental performance.
IBA is listed on the pan-European stock exchange EURONEXT (IBA: Reuters IBAB.BR and Bloomberg IBAB.BB). More information can be found at: www.iba-worldwide.com
For further information, please contact:
Elena De Landy
Paralegal: Corporate Affairs and Insurance