(Article 14, paragraph 1 of the law of 2 May 2007 on the disclosure of major holdings)


Louvain-la-Neuve, Belgium, April 11, 2024, 6pm

Summary of the notification

IBA (Ion Beam Applications), the world’s leading provider of proton therapy solutions for the treatment of cancer, 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 April 9, 2024.

In its notification, Vallcara Limited indicated that following an acquisition, its total shareholding in IBA SA had increased and its shareholding in IBA shares with voting rights had crossed the threshold of 2% on 08/04/2024.

Content of the notification

  • Reason for the notification: Acquisition or disposal of 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: 08/04/2024
  • Threshold crossed (in %) : 2%
  • Denominator : 40.595.290
  • Notified details: (extract of the received notification form)
  • Full chain of controlled undertakings through which the holding is effectively held

Vallcara Limited is 100% owned by Vallgesa Limited (C 58154), a company registered in Malta.

  • Additional information

Vallcara Limited has reached the 2% notification threshold due to acquisition of shares. Vallcara Ltd. is the investment manager who can exercise the voting rights at its discretion in the absence of specific instructions.”

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 field of proton therapy, considered to be the most advanced form of radiation therapy available today. IBA is also a leading player in the fields of 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:

Valérie Van Impe