UCB : Transparency Notification

Brussels (Belgium), 9 January 2017 - 20:00 (CET) - regulated information

1. Summary of the notification

Pursuant to Article 14 of the law of 2 May 2007 on the disclosure of large shareholdings, UCB SA/NV announces that it has received a transparency notification dated 4 January 2017, from Wellington Management Group LLP (having its registered offices at 280 Congress Street, Boston, MA 02110, USA).

Wellington Management Group LLP has notified that, following an acquisition of UCB shares with voting rights by its affiliates, its shareholding in UCB SA/NV had increased and has crossed the 3% threshold.

On 3 January 2017, Wellington Management Group LLP (taking into account the holding of its affiliates) owned 5 898 811 UCB shares with voting rights (versus 5 814 498 UCB shares in its previous notification dated 27 December 2016), representing 3.03% of the total number of shares issued by the company (194 505 658) (versus 2.99% in its notification dated 27 December 2016).

2. Content of the notification

The transparency notification dated 4 January 2017 included the following information:

• Reason for the notification: Acquisition or disposal of voting securities or voting rights
• Notification by: A parent undertaking or a controlling person.
• Person subject to the notification requirement: Wellington Management Group LLP, 280 Congress Street, Boston, MA 02110, USA
• Date on which the threshold is crossed: 3 January 2017.
• Threshold crossed (in %): 3%.
• Denominator: 194 505 658.
• Notified details:

• Chain of controlled undertakings through which the holding is effectively held:

Wellington Management Company LLP is a direct controlled undertaking of Wellington Investment Advisors Holdings LLP, which, in turn, is a direct controlled undertaking of Wellington Group Holdings LLP, which, in turn, is a direct controlled undertaking of Wellington Management Group LLP.

Wellington Management International Ltd, is a direct controlled undertaking of Wellington Management Global Holdings, Ltd,which , in turn, is a direct controlled undertaking of Wellington Investment Advisors Holdings LLP, which, in turn, is a direct controlled undertaking of Wellington Group Holdings LLP, which, in turn, is a direct controlled undertaking of Wellington Management Group LLP.

Wellington Management Company LLP is an investment management company and can exercise the voting rights at its discretion in the absence of specific instructions from the beneficial owners of the shares.

Wellington Management International Ltd is an investment management company and can exercise the voting rights at its discretion in the absence of specific instructions from the beneficial owners of the shares.

3. Further information

This press release and the detailed transparency notification is available on UCB SA/NV's website via the following link.

An updated overview of the UCB SA/NV large shareholdings will be included in the corporate governance charter of UCB SA/NV, which is available on its website via the following link.

Investor Relations
Antje Witte
Investor Relations, UCB
T +32.2.559.94.14 antje.witte@ucb.com

Isabelle Ghellynck,
Investor Relations, UCB
T+32.2.559.9588, isabelle.ghellynck@ucb.com

About UCB
UCB, Brussels, Belgium (www.ucb.com) is a global biopharmaceutical company focused on the discovery and development of innovative medicines and solutions to transform the lives of people living with severe diseases of the immune system or of the central nervous system. With more than 7 500 people in approximately 40 countries, the company generated revenue of € 3.9 billion in 2015. UCB is listed on Euronext Brussels (symbol: UCB). Follow us on Twitter: @UCB_news