Publication of a transparency notification (article 14, first paragraph of the Law of 2 May 2007 on disclosure of major holdings)

1. Summary of the notification

On 22.10.2025, Cofinimmo has received a transparency notification dated 22.10.2025 from the group BlackRock, Inc. with registered offices at 50 Hudson Yards, New York, NY, 10001, USA. By virtue of transactions in voting securities, the group now holds 5.04% of voting securities and 0.01% of equivalent financial instruments (compared to 5.00% and 0.01%, respectively, during the previous notification dated 21.10.2025).

The group BlackRock, Inc. now holds 5.06% of the voting rights in the company, including the equivalent financial instruments. Please note that form TR-1 BE rounds the total percentage of voting rights (TOTAL A&B) as mentioned in section 10.

2. Content of the notification

The notification dated 22.10.2025 contains 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
Persons subject to the notification requirement:

50 Hudson Yards, New York, NY, 10001, U.S.A.
12 Throgmorton Avenue, London, EC2N 2DL, U.K.
50 Hudson Yards, New York, NY, 10001, U.S.A.
161 Bay Street, Suite 2500, Toronto, Ontario, M5J 2S1, Canada
Lenbachplatz 1 1st Floor, Munich, 80333-MN3, Germany
15/F, 16/F, 17/F Citibank Tower & 17/F ICBC Tower, 3 Garden Road,
Central, Hong Kong
50 Hudson Yards, New York, NY, 10001, U.S.A.
400 Howard Street, San Francisco, CA, 94105, U.S.A.
400 Howard Street, San Francisco, CA, 94105, U.S.A.

Level 37 Chifley Tower, 2 Chifley Square, Sydney NSW 2000, Australia
12 Throgmorton Avenue, London, EC2N 2DL, U.K.
1 University Square Drive, Princeton, NJ, 8540, U.S.A.
1-8-3 Marunouchi Chiyoda-ku, Trust Tower Main, Tokyo, 100-8217, Japan

REGULATED INFORMATION

Brussels, 23.10.2025, 5:40 p.m. CET

Date on which the threshold is crossed: 21.10.2025

Threshold that is crossed: 5% Denominator: 38,096,217

Notified details:

A) Voting rights

Holder	Number of voting rights linked to shares before the transaction	Number of voting rights linked to shares after the transaction	% of voting rights
BlackRock, Inc.	0	0	0.00%
BlackRock Advisors (UK) Limited	556,036	571,693	1.50%
BlackRock Advisors, LLC	5,097	5,097	0.01%
BlackRock Asset Management Canada Limited	81,872	81,866	0.21%
BlackRock Asset Management Deutschland AG	96,845	96,845	0.25%
BlackRock Asset Management North Asia Limited	2,300	2,300	0.01%
BlackRock Financial Management, Inc.	11	11	0.00%
BlackRock Fund Advisors	592,864	592,864	1.56%
BlackRock Institutional Trust Company, National Association	394,066	393,543	1.03%
BlackRock Investment Management (Australia) Limited	22,338	22,338	0.06%
BlackRock Investment Management (UK) Limited	150,910	151,839	0.40%
BlackRock Investment Management, LLC	0	544	0,00%
BlackRock Japan Co., Ltd	2,053	2,053	0.01%
Subtotal	1,904,392	1,920,993	5.04%

B) Equivalent financial instruments

Holder	Type of financial instrument	Number of voting rights linked to equivalent financial instruments after the transaction	% of voting rights	Settlement
BlackRock Financial Management, Inc.	Contract Difference	2,615	0.01%	Cash
BlackRock Institutional Trust Company, National Association	Contract Difference	2,907	0.01%	Cash
Subtotal		5,522	0.01%
TOTAL A + B		1,926,515	5.06%

REGULATED INFORMATION

Brussels, 23.10.2025, 5:40 p.m. CET

Full chain of controlled undertakings through which the holding is effectively held: the full chain of controlled undertakings was added to the notification.
Additional information: the disclosure obligation arose due to voting rights attached to shares for BlackRock, Inc. going above 5%.

3. Miscellaneous

This press release can be consulted on Cofinimmo's website under www.cofinimmo.com/news-and-media/press-releases/.
The full notification can be consulted on Cofinimmo's website under www.cofinimmo.com/investors/shareholder-information/ownership/.

For more information:

Head of External Communication Head of Investor Relations Tel.: +32 2 373 60 32 Tel.: +32 2 777 14 08

Philippe Etienne Lynn Nachtergaele

[email protected] [email protected]

About Cofinimmo:

Cofinimmo has been acquiring, developing and managing rental properties for more than 40 years. The company has a portfolio spread across Belgium, France, the Netherlands, Germany, Spain, Finland, Ireland, Italy and the United Kingdom with a value of approximately 6 billion EUR. Responding to societal changes, Cofinimmo's mission is to provide highquality care, living, and working spaces to partner-tenants that directly benefit their occupants. 'Caring, Living and Working - Together in Real Estate' is the expression of this mission. Thanks to its expertise, Cofinimmo has assembled a healthcare real estate portfolio of approximately 4.6 billion EUR in Europe.

As an independent company applying the highest standards of corporate governance and sustainability, Cofinimmo offers tenant services and manages its portfolio through a team of approximately 150 employees in Brussels, Paris, Breda, Frankfurt and Madrid.

Cofinimmo is listed on Euronext Brussels (BEL20) and benefits from the REIT status in Belgium (RREC), in France (SIIC) and in Spain (SOCIMI). Its activities are supervised by the Financial Services and Markets Authority (FSMA), the Belgian regulator.