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UCB — Major Shareholding Notification 2025
Mar 11, 2025
4017_mrq_2025-03-11_e92c6cf2-34ec-41fc-aa71-3231d21a38c1.pdf
Major Shareholding Notification
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Transparency notification BlackRock, Inc.
Brussels (Belgium), 11 March 2025 – 20:00 (CEST) – 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 received a transparency notification from BlackRock, Inc. (having its registered office at 50 Hudson Yards, New York, NY, 10001, U.S.A.), on 7 March 2025.
BlackRock, Inc. notified that, following a disposal of UCB shares with voting rights by its affiliates, its shareholding in UCB SA decreased and crossed the 5% threshold downwards on 6 March 2025.
On 6 March 2025, BlackRock, Inc. (taking into account the holding of its affiliates) owned 9 699 063 UCB shares with voting rights and 215 582 assimilated financial instruments, representing together 5.10% of the total number of shares issued by the company (194 505 658), versus 5.02% (9 906 838 UCB shares and 73 183 assimilated financial instruments) in the previous notification dated 13 November 2024.
2. 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:
| Name | Address (for legal entities) |
|---|---|
| BlackRock, Inc. | 50 Hudson Yards, New York, NY, 10001, U.S.A. |
| BlackRock (Netherlands) B.V. | Rembrandt Tower, 17th floor, Amstelplein, Amsterdam, Netherlands |
| BlackRock (Singapore) Limited | 20 Anson Road #18-01, Singapore, 79912, Singapore |
| BlackRock Advisors (UK) Limited | 12 Throgmorton Avenue, London, EC2N 2DL, U.K. |
| BlackRock Advisors, LLC | 50 Hudson Yards, New York, NY, 10001, U.S.A. |
| BlackRock Asset Management Canada Limited | 161 Bay Street, Suite 2500, Toronto, Ontario, M5J 2S1, Canada |


| BlackRock Asset Management Deutschland AG | Lenbachplatz 1 1st Floor, Munich, 80333-MN3, Germany |
|---|---|
| BlackRock Asset Management North Asia Limited |
15/F, 16/F, 17/F Citibank Tower & 17/F ICBC Tower, 3 Garden Road, Central, Hong Kong |
| BlackRock Financial Management, Inc. | 50 Hudson Yards, New York, NY, 10001, U.S.A. |
| BlackRock Fund Advisors | 400 Howard Street, San Francisco, CA, 94105, U.S.A. |
| BlackRock Institutional Trust Company, National Association |
400 Howard Street, San Francisco, CA, 94105, U.S.A. |
| BlackRock Investment Management (Australia) Limited |
Level 37 Chifley Tower, 2 Chifley Square, Sydney NSW 2000, Australia |
| BlackRock Investment Management (UK) Limited |
12 Throgmorton Avenue, London, EC2N 2DL, U.K. |
| BlackRock Investment Management, LLC | 1 University Square Drive, Princeton, NJ, 8540, U.S.A. |
| BlackRock Japan Co., Ltd. | 1-8-3 Marunouchi Chiyoda-ku, Trust Tower Main, Tokyo, 100-8217, Japan |
| Aperio Group, LLC | 3 Harbor Dr Suite 204, Sausalito, CA 94965, U.S.A. |
| SpiderRock Advisors, LLC | Corporation Service Company, 251 Little Falls Drive, Wilmington, DE 19808, U.S.A. |
- Date on which the threshold is crossed: 6 March 2025.
- Threshold crossed (in %): 5%.
- Denominator: 194 505 658.


• Notified details:
| A) Voting rights | Previous notification | After the transaction | |||
|---|---|---|---|---|---|
| # of voting rights | # of voting rights | % of voting rights | |||
| Holders of voting rights | Linked to securities |
Not linked to the securities |
Linked to securities |
Not linked to the securities |
|
| BlackRock, Inc. | 0 | 0 | 0,00% | ||
| BlackRock (Netherlands) B.V. |
3.219 | 1.337 | 0,00% | ||
| BlackRock (Singapore) Limited |
5.895 10.538 |
0,01% | |||
| BlackRock Advisors (UK) Limited |
1.701.438 1.623.556 |
0,83% | |||
| BlackRock Advisors, LLC | 213.637 | 201.535 | 0,10% | ||
| BlackRock Asset Management Canada Limited |
131.804 | 138.714 | 0,07% | ||
| BlackRock Asset Management Deutschland AG |
176.460 | 181.285 | 0,09% | ||
| BlackRock Asset Management North Asia Limited |
3.200 | 0,00% | |||
| BlackRock Financial Management, Inc. |
69.352 | 73.923 | 0,04% | ||
| BlackRock Fund Advisors | 2.556.634 | 2.445.575 | 1,26% | ||
| BlackRock Institutional Trust Company, National Association |
1.597.780 | 1.602.340 | 0,82% | ||
| BlackRock Investment Management (Australia) Limited |
53.088 | 51.478 | 0,03% |

UCB News
| BlackRock Investment Management (UK) Limited |
2.542.996 | 2.508.775 | 1,29% | ||
|---|---|---|---|---|---|
| BlackRock Investment Management, LLC |
574.535 645.042 |
0,33% | |||
| BlackRock Japan Co., Ltd. | 231.719 | 170.111 | 0,09% | ||
| Aperio Group, LLC | 45.080 | 0,02% | |||
| Subtotal | 9.699.063 9.906.838 |
4,99% | |||
| TOTAL | 9.699.063 | 0 | 4,99% | 0,00% |
| B) Equivalent financial instruments |
After the transaction | |||||
|---|---|---|---|---|---|---|
| Holders of equivalent financial instruments |
Type of financial instrument |
Expiration date |
Exercise period or date |
# of voting rights that may be acquired if the instrument is exercised |
% of voting rights |
Settlement |
| BlackRock Advisors (UK) Limited |
Securities Lent | 4.828 | 0,00% | physical | ||
| BlackRock Investment (UK) Management Limited |
Securities Lent | 196.219 | 0,10% | physical | ||
| BlackRock Investment Management, LLC |
Securities Lent | 306 | 0,00% | physical | ||
| Financial BlackRock Management, Inc. |
Contract for Difference | 3.685 | 0,00% | cash | ||
| BlackRock Institutional Trust National Company, Association |
Contract for Difference | 4.560 | 0,00% | cash | ||
| Aperio Group, LLC | Depositary Receipt | 5.951 | 0,00% |


| SpiderRock Advisors, LLC |
Depositary Receipt | 33 | 0,00% | ||
|---|---|---|---|---|---|
| TOTAL | 215.582 | 0,11 % |
| TOTAL (A & B) | # of voting rights |
% of voting rights |
|
|---|---|---|---|
| CALCULATE | 9.914.645 | 5,10% |
- Chain of controlled undertakings through which the holding is effectively held: Please see the full chain of control in the 'Chain of Control' tab.
- Additional information: The disclosure obligation arose due to voting rights attached to shares for BlackRock, Inc going below 5%
3. Further information
This press release and the detailed transparency notification are available on UCB SA/NV's website via the following link.
An updated overview of the UCB SA/NV large shareholdings will be available on UCB SA/NV's website via the following link.
For further information, contact UCB:
Investor Relations Antje Witte T +32 2 559 94 14 [email protected]
Corporate Communications Laurent Schots T+32 2 559 92 64 [email protected]
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 9 000 people in approximately 40 countries, the company generated revenue of € 6.1 billion in 2024. UCB is listed on Euronext Brussels (symbol: UCB). Follow us on Twitter: @UCB_news
