Participation notification by UBS Group AG
Press release Regulated information
Brussels, December 15, 2025, 17:45 CET
In line with Belgian transparency legislation (Law of May 2, 2007), UBS Group AG recently sent to Solvay the following transparency notification indicating that they crossed the threshold of 3%.
Here is a summary of the notification:
| Voting rights after the transaction | Equivalent financial instruments after the transaction | Total | |
| Previous | 0.17% | 2.88% | 3.05% |
| New | 0.17% | 3.20% | 3.37% |
The notification, dated December 10, 2025, contains the following information:
- Reason for the notification:
- Acquisition or disposal of financial instruments that are treated as voting securities
- Notified by: A parent undertaking or a controlling person
- Date on which the threshold is crossed: December 5, 2025
- Threshold of direct voting rights crossed: 3% upwards
- Denominator: 105,876,416
- Additional information: The disclosure obligation arose due to the indirect holdings in financial instrument of UBS Group AG in voting rights of Solvay SA, held directly by controlled undertakings, going above 3% on 5th December 2025.
- Persons subject to the notification requirement: UBS Group AG, Bahnhofstrasse 45, 8001 Zürich
Transparency notifications and the full chain of controlled undertakings through which the holding is effectively held are available on the of Solvay's website.
Contacts
Investor relations
Geoffroy d’Oultremont: 6
Vincent Toussaint: 65
Charlotte Vandevenne: 6
Media relations
Peter Boelaert: 9
Laetitia Van Minnenbruggen: 7
About Solvay
Solvay, a pioneering chemical company with a legacy rooted in founder Ernest Solvay's pivotal innovations in the soda ash process, is dedicated to delivering essential solutions globally through its workforce of circa 9,000 employees. Since 1863, Solvay has harnessed the power of chemistry to create innovative, sustainable solutions that answer the world’s most essential needs such as purifying the air we breathe and the water we drink, preserving our food supplies, protecting our health and well-being, creating eco-friendly clothing, making the tires of our cars more sustainable and cleaning and protecting our homes. Solvay’s unwavering commitment drives the transition to a carbon-neutral future by 2050, underscoring its dedication to sustainability and a fair and just transition. As a world-leading company with €4.7 billion in net sales in 2024, Solvay is listed on Euronext Brussels and Paris (SOLB). For more information about Solvay, please visit or follow on Linkedin.
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