Groupe Bruxelles Lambert : Transparency declaration

Delivering meaningful growth

January 19, 2022 - after 5:45pm CET

Press release

Regulated information

Transparency notification by Artisan Partners Limited Partnership and

Artisan Partners Asset Management Inc.

1. Summary of the notification

In accordance with article 14 § 1 of the law of May 2, 2007 on disclosure of major shareholdings, Groupe Bruxelles Lambert ("GBL") has received a transparency notification dated January 18, 2022 indicating that as of May 18, 2021 Artisan Partners Limited Partnership and Artisan Partners Asset Management Inc. held 5.01% of GBL's voting rights.

2. Content of the notification

The notification dated January 18, 2022 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:
• • Artisan Partners Limited Partnership
  • Artisan Partners Asset Management Inc.
• Transaction date: May 18, 2021
• Threshold that is crossed (upper): 5%
• Denominator: 210,783,700
• Notified details:

A. Voting rights

Holders of voting rights	Previous notification	After the transaction
	# voting rights	# of voting rights	% voting rights
		linked to	linked to
		securities	securities
Artisan Partners Asset Management Inc.	0	0	0.00 %
Artisan Partners Limited Partnership	8,042,762	10,560,831	5.01%
Total	8,042,762	10,560,831	5.01%

Press release January 19, 2022 - Regulated information // Page 1 / 3 // For more information: www.gbl.be

1. Equivalent financial instruments

Holders of	Type of	Expiration	Exercise period	# of voting rights	% of voting rights	Settlement
equivalent	financial	date	or date	that may be
financial	instruments			acquired if the
instruments				instrument is
				exercised
-	-	-	-	-	-
Total				0	0.00%
Total A+B				# of voting rights	% of voting rights
				10,560,831	5.01%

• Chain of controlled undertakings through which the holding is effectively held:
  Artisan Partners Limited Partnership ("APLP"), a U.S. registered investment adviser, is a limited partnership organized under the laws of the State of Delaware. APLP is controlled by Artisan Investments GP LLC ("Artisan LLC"), a limited liability

company organized under the laws of the State of Delaware. Artisan LLC is controlled by Artisan Partners Holdings LP. Artisan Partners Holdings LP is controlled by Artisan Partners Asset Management Inc. Artisan Partners Asset Management Inc. is not a controlled entity.

• Additional information
  The notification indicates that under a contractual proxy, APLP exercises voting rights in GBL on a discretionary basis for a number of clients, of which no client individually holds shares representing 5% or more of the voting rights in GBL.
  APLP is an investment adviser registered with the United States Securities and Exchange Commission under the U.S. Investment Advisers Act of 1940.
  APLP crossed above the 5% threshold due to a trade on May 18, 2021 and information in this notification is presented as of that date. APLP also crossed above and below the 5% threshold before this date, but it has not crossed the 5% threshold since May 18, 2021. On January 5, 2022, APLP discovered that it had crossed the 5% threshold and that the original date of the cross was May 18, 2021. The delay in the notification is unintentional and occurred because of a technical problem with a third party IT system that is used by APLP to monitor its shareholding in the company. APLP was not aware of its filing obligation before the technical problem was corrected on January 5, 2022. Upon discovering it, APLP reviewed the trading activity to determine its filing obligations, prepared this notification and took contact directly with the FSMA. Since this discovery, the system has been restored in order to avoid any similar issue in the future.

This press release is available on GBL's website.

The detailed notification can be found here.

Press release January 19, 2022 - Regulated information // Page 2 / 3 // For more information: www.gbl.be

For more information, please contact:
Xavier Likin	Alison Donohoe
Chief Financial Officer	Head of Investor Relations
Tel: [phone]	Tel: [phone]
[e-mail]	[e-mail]

About Groupe Bruxelles Lambert

Groupe Bruxelles Lambert ("GBL") is an established investment holding company, with over sixty years of stock exchange listing, a net asset value of EUR 22.5 billion and a market capitalization of EUR 15.3 billion at the end of September 2021. GBL is a leading investor in Europe, focused on long-term value creation and relying on a stable and supportive family shareholder base. GBL is both a responsible company and investor and perceives ESG factors as being inextricably linked to value creation.

GBL strives to maintain a diversified high-quality portfolio of listed and private assets as well as alternative investments (through Sienna, the group's alternative investment platform), composed of global companies that are leaders in their sector, to which it can contribute to value creation by being an active professional investor.

GBL is focused on delivering meaningful growth by providing attractive returns to its shareholders through a combination of growth in its net asset value, a sustainable dividend and share buybacks.

GBL is listed on the Euronext Brussels stock exchange (Ticker: GBLB BB; ISIN code: BE0003797140) and is included in the BEL20 index.

Press release January 19, 2022 - Regulated information // Page 3 / 3 // For more information: www.gbl.be